JD 6020 Diagnostics.pdf

6020 to 6920S Tractors and SE Tractors Diagnostics

TECHNICAL MANUAL 6020 to 6920S Tractors and SE Tractors Diagnostics TM4726 01NOV03 (ENGLISCH)

For complete service information also see: 6020 to 6920S Tractors and SE Tractors Operation and Tests . . . . . . . . . . . . . . . . . . . 6020 to 6620 Tractors and SE Tractors Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tractors 6820, 6920 and 6920S Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Wheel Drive Axles - AS and MS Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Wheel Drive Axles (700 Series) . . . . . POWERTECH Diesel Engines . . . . . . . . . . . Mechanical Fuel Injection Systems . . . . . . . Electronic Fuel Injection Systems (Level 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Fuel Injection Systems (Level 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Fuel Injection Systems (Level 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Fuel Injection Systems (Level 12). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alternators and Starting Motors (available in English only). . . . . . . . . . . . . . .

TM4741 TM4750 TM4756 CTM4687 CTM4820 CTM104 CTM207 CTM170 CTM284 CTM220 CTM331 CTM77

John Deere Werke Mannheim European Version Printed in Germany

Introduction Foreword This diagnostics manual is valid for the following tractor types: 6020, 6120, 6220, 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S. SE tractors: 6020, 6120, 6220, 6320, 6420 and 6520. This manual is written for an experienced technician. Essential tools required in performing certain service work are identified in this manual and are recommended for use. Live with safety: Read the safety messages in the introduction of this manual and the cautions presented throughout the text of the manual.

This is the safety-alert symbol. When you see this symbol on the machine or in this manual, be alert to the potential for personal injury. Technical Manuals are concise guides for specific machines. They are on-the-job guides containing only the vital information needed for diagnosis, analysis, testing and repair. Fundamental service information is available from other sources covering basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic type of failures and their causes.

LX24888,0000410 –19–01OCT02–1/1

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Contents 210

SECTION 210—GENERAL INFORMATION Group 05—Safety Information SECTION 211—DIAGNOSTIC TROUBLE CODES Group ATC—ATC Diagnostic Trouble Codes Group BCU—BCU Diagnostic Trouble Codes Group BIF—BIF Diagnostic Trouble Codes Group ECU—ECU Diagnostic Trouble Codes Group EPC—EPC Diagnostic Trouble Codes Group JDL—JDL Diagnostic Trouble Codes Group PLC—PLC Diagnostic Trouble Codes Group PRF—PRF Diagnostic Trouble Codes Group SFA—SFA Diagnostic Trouble Codes Group SIC—SIC Diagnostic Trouble Codes Group SSU—SSU Diagnostic Trouble Codes Group TCU—TCU Diagnostic Trouble Codes Group TEC—TEC Diagnostic Trouble Codes Group UIC—UIC Diagnostic Trouble Codes

211

212

213

SECTION 212—OBSERVABLE SYMPTOMS Group 20—Engine Group 40—Electrical System Group 50—SyncroPlus Transmission Group 51—Power Reverser Transmission Group 53—AutoPowr/IVT Transmission Group 55—PowrQuad, PowrQuad Plus and AutoQuad Transmissions Group 56—Drive Systems Group 60—Steering and Brakes Group 70—Hydraulic System Group 90—Operator’s Cab

INDX

SECTION 213—SYSTEM DIAGNOSTICS Group 45—Electronics

All information, illustrations and specifications in this manual are based on the latest information available at the time of publication. The right is reserved to make changes at any time without notice. COPYRIGHT  2003 DEERE & COMPANY European Office Mannheim All rights reserved A John Deere ILLUSTRUCTION Manual Previous Editions Copyright  2002, 2001

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211

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210

Section 210

GENERAL INFORMATION Contents Page

Group 05—Safety Information Recognize Safety Information . . . . . . . . . . . . .210-05-1 “Important” - Information . . . . . . . . . . . . . . . . .210-05-1 “Note” - Information . . . . . . . . . . . . . . . . . . . . .210-05-1 Prevent Machine Runaway . . . . . . . . . . . . . . .210-05-1 Handle Fluids Safely—Avoid Fires . . . . . . . . .210-05-2 Prevent Battery Explosions . . . . . . . . . . . . . . .210-05-2 Prepare for Emergencies. . . . . . . . . . . . . . . . .210-05-2 Prevent Acid Burns . . . . . . . . . . . . . . . . . . . . .210-05-3 Avoid High-Pressure Fluids . . . . . . . . . . . . . . .210-05-4 Service Cooling System Safely . . . . . . . . . . . .210-05-4 Remove Paint Before Welding or Heating . . . .210-05-5 Avoid Heating Near Pressurized Fluid Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210-05-5 Work In Ventilated Area . . . . . . . . . . . . . . . . .210-05-6 Wear Protective Clothing. . . . . . . . . . . . . . . . .210-05-6 Practice Safe Maintenance . . . . . . . . . . . . . . .210-05-7 Park Machine Safely . . . . . . . . . . . . . . . . . . . .210-05-7 Use Proper Lifting Equipment . . . . . . . . . . . . .210-05-8 Construct Dealer-Made Tools Safely . . . . . . . .210-05-8 Support Machine Properly . . . . . . . . . . . . . . . .210-05-8 Work in Clean Area. . . . . . . . . . . . . . . . . . . . .210-05-9 Illuminate Work Area Safely . . . . . . . . . . . . . .210-05-9 Service Machines Safely . . . . . . . . . . . . . . . . .210-05-9 Use Proper Tools . . . . . . . . . . . . . . . . . . . . .210-05-10 Service Tires Safely . . . . . . . . . . . . . . . . . . .210-05-10 Service Front-Wheel Drive Tractor Safely . . .210-05-11 Safety Information - Air Brake System. . . . . .210-05-11 Avoid Eye Contact With Radar . . . . . . . . . . .210-05-12 Keep ROPS Installed Properly . . . . . . . . . . .210-05-12 Replace Safety Signs . . . . . . . . . . . . . . . . . .210-05-12 Dispose of Waste Properly . . . . . . . . . . . . . .210-05-13 Live With Safety . . . . . . . . . . . . . . . . . . . . . .210-05-13 Safety Measures on Electronic Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210-05-14

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Group 05

Safety Information 210 05 1

Recognize Safety Information

T81389

Follow recommended precautions and safe operating practices.

–UN–07DEC88

This is a safety-alert symbol. When you see this symbol on your machine or in this manual, be alert to the potential for personal injury.

DX,ALERT –19–29SEP98–1/1

“Important” - Information Information marked as IMPORTANT points out problems that may lead to machine damage. By following the directions given, these problems can be avoided.

LX,CRA05 002885 –19–09APR92–1/1

“Note” - Information When marked with NOTE the information given is more detailed or contains restrictions to directions given previously. On the other hand useful information may be given belonging to certain instructions without being directly connected to them.

LX,CRA05 002886 –19–09APR92–1/1

Prevent Machine Runaway Avoid possible injury or death from machinery runaway.

TS177

NEVER start engine while standing on ground. Start engine only from operator’s seat, with transmission in neutral or park.

–UN–11JAN89

Do not start engine by shorting across starter terminals. Machine will start in gear if normal circuitry is bypassed.

DX,BYPAS1 –19–29SEP98–1/1

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Safety Information

Handle Fluids Safely—Avoid Fires

Store flammable fluids away from fire hazards. Do not incinerate or puncture pressurized containers. Make sure machine is clean of trash, grease, and debris.

TS227

Do not store oily rags; they can ignite and burn spontaneously.

–UN–23AUG88

When you work around fuel, do not smoke or work near heaters or other fire hazards.

DX,FLAME –19–29SEP98–1/1

Prevent Battery Explosions

Never check battery charge by placing a metal object across the posts. Use a volt-meter or hydrometer.

TS204

Do not charge a frozen battery; it may explode. Warm battery to 16°C (60°F).

–UN–23AUG88

Keep sparks, lighted matches, and open flame away from the top of battery. Battery gas can explode.

DX,SPARKS –19–03MAR93–1/1

Prepare for Emergencies Be prepared if a fire starts.

Keep emergency numbers for doctors, ambulance service, hospital, and fire department near your telephone.

–UN–23AUG88

Keep a first aid kit and fire extinguisher handy.

TS291

210 05 2

DX,FIRE2 –19–03MAR93–1/1

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Safety Information 210 05 3

Prevent Acid Burns Sulfuric acid in battery electrolyte is poisonous. It is strong enough to burn skin, eat holes in clothing, and cause blindness if splashed into eyes. Avoid the hazard by: 1. 2. 3. 4. 5.

Filling batteries in a well-ventilated area. Wearing eye protection and rubber gloves. Avoiding breathing fumes when electrolyte is added. Avoiding spilling or dripping electrolyte. Use proper jump start procedure.

If you spill acid on yourself:

–UN–23AUG88

1. Flush your skin with water. 2. Apply baking soda or lime to help neutralize the acid. 3. Flush your eyes with water for 15—30 minutes. Get medical attention immediately. If acid is swallowed:

TS203

1. Do not induce vomiting. 2. Drink large amounts of water or milk, but do not exceed 2 L (2 quarts). 3. Get medical attention immediately.

DX,POISON –19–21APR93–1/1

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Safety Information

Avoid High-Pressure Fluids

Search for leaks with a piece of cardboard. Protect hands and body from high pressure fluids.

X9811

Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure.

–UN–23AUG88

Escaping fluid under pressure can penetrate the skin causing serious injury.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source. Such information is available from Deere & Company Medical Department in Moline, Illinois, U.S.A.

DX,FLUID –19–03MAR93–1/1

Service Cooling System Safely

Shut off engine. Only remove filler cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

–UN–23AUG88

Explosive release of fluids from pressurized cooling system can cause serious burns.

TS281

210 05 4

DX,RCAP –19–04JUN90–1/1

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Safety Information 210 05 5

Remove Paint Before Welding or Heating Avoid potentially toxic fumes and dust.

• Remove paint a minimum of 100 mm (4 in.) from area to be affected by heating. If paint cannot be removed, wear an approved respirator before heating or welding. • If you sand or grind paint, avoid breathing the dust. Wear an approved respirator. • If you use solvent or paint stripper, remove stripper with soap and water before welding. Remove solvent or paint stripper containers and other flammable material from area. Allow fumes to disperse at least 15 minutes before welding or heating.

TS220

Remove paint before heating:

–UN–23AUG88

Hazardous fumes can be generated when paint is heated by welding, soldering, or using a torch.

Do not use a chlorinated solvent in areas where welding will take place. Do all work in an area that is well ventilated to carry toxic fumes and dust away. Dispose of paint and solvent properly.

DX,PAINT –19–24JUL02–1/1

TS953

Flammable spray can be generated by heating near pressurized fluid lines, resulting in severe burns to yourself and bystanders. Do not heat by welding, soldering, or using a torch near pressurized fluid lines or other flammable materials. Pressurized lines can be accidentally cut when heat goes beyond the immediate flame area.

–UN–15MAY90

Avoid Heating Near Pressurized Fluid Lines

DX,TORCH –19–03MAR93–1/1

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Safety Information

Work In Ventilated Area

TS220

If you do not have an exhaust pipe extension, open the doors and get outside air into the area

–UN–23AUG88

Engine exhaust fumes can cause sickness or death. If it is necessary to run an engine in an enclosed area, remove the exhaust fumes from the area with an exhaust pipe extension.

DX,AIR –19–17FEB99–1/1

Wear Protective Clothing

Prolonged exposure to loud noise can cause impairment or loss of hearing. Wear a suitable hearing protective device such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises.

–UN–23AUG88

Wear close fitting clothing and safety equipment appropriate to the job.

TS206

210 05 6

Operating equipment safely requires the full attention of the operator. Do not wear radio or music headphones while operating machine.

DX,WEAR –19–10SEP90–1/1

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Safety Information 210 05 7

Practice Safe Maintenance Understand service procedure before doing work. Keep area clean and dry. Never lubricate, service, or adjust machine while it is moving. Keep hands, feet , and clothing from power-driven parts. Disengage all power and operate controls to relieve pressure. Lower equipment to the ground. Stop the engine. Remove the key. Allow machine to cool. Securely support any machine elements that must be raised for service work.

On towed implements, disconnect wiring harnesses from tractor before servicing electrical system components or welding on machine.

TS218

On self-propelled equipment, disconnect battery ground cable (-) before making adjustments on electrical systems or welding on machine.

–UN–23AUG88

Keep all parts in good condition and properly installed. Fix damage immediately. Replace worn or broken parts. Remove any buildup of grease, oil, or debris.

DX,SERV –19–17FEB99–1/1

Park Machine Safely

Lower all equipment to the ground. Stop the engine and remove the key. Disconnect the battery ground strap. Hang a "DO NOT OPERATE" tag in operator station.

TS230

• • • •

–UN–24MAY89

Before working on the machine:

DX,PARK –19–04JUN90–1/1

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Safety Information

Use Proper Lifting Equipment Lifting heavy components incorrectly can cause severe injury or machine damage.

TS226

–UN–23AUG88

Follow recommended procedure for removal and installation of components in the manual.

DX,LIFT –19–04JUN90–1/1

Construct Dealer-Made Tools Safely

LX1016749

Do not weld tools unless you have the proper equipment and experience to perform the job.

–UN–01JUL97

Faulty or broken tools can result in serious injury. When constructing tools, use proper, quality materials, and good workmanship.

DX,SAFE,TOOLS –19–10OCT97–1/1

Always lower the attachment or implement to the ground before you work on the machine. If the work requires that the machine or attachment be lifted, provide secure support for them. If left in a raised position, hydraulically supported devices can settle or leak down. Do not support the machine on cinder blocks, hollow tiles, or props that may crumble under continuous load. Do not work under a machine that is supported solely by a jack. Follow recommended procedures in this manual.

–UN–23AUG88

Support Machine Properly

TS229

210 05 8

When implements or attachments are used with a machine, always follow safety precautions listed in the implement or attachment operator’s manual.

DX,LOWER –19–24FEB00–1/1

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Safety Information 210 05 9

Work in Clean Area

Clean work area and machine. Make sure you have all necessary tools to do your job. Have the right parts on hand. Read all instructions thoroughly; do not attempt shortcuts.

T6642EJ

• • • •

–UN–18OCT88

Before starting a job:

DX,CLEAN –19–04JUN90–1/1

TS223

Illuminate your work area adequately but safely. Use a portable safety light for working inside or under the machine. Make sure the bulb is enclosed by a wire cage. The hot filament of an accidentally broken bulb can ignite spilled fuel or oil.

–UN–23AUG88

Illuminate Work Area Safely

DX,LIGHT –19–04JUN90–1/1

Service Machines Safely

TS228

Remove rings and other jewelry to prevent electrical shorts and entanglement in moving parts.

–UN–23AUG88

Tie long hair behind your head. Do not wear a necktie, scarf, loose clothing, or necklace when you work near machine tools or moving parts. If these items were to get caught, severe injury could result.

DX,LOOSE –19–04JUN90–1/1

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Safety Information

Use Proper Tools

For loosening and tightening hardware, use the correct size tools. DO NOT use U.S. measurement tools on metric fasteners. Avoid bodily injury caused by slipping wrenches.

TS779

Use power tools only to loosen threaded parts and fasteners.

–UN–08NOV89

Use tools appropriate to the work. Makeshift tools and procedures can create safety hazards.

Use only service parts meeting John Deere specifications.

DX,REPAIR –19–17FEB99–1/1

Service Tires Safely Explosive separation of a tire and rim parts can cause serious injury or death. Do not attempt to mount a tire unless you have the proper equipment and experience to perform the job. Always maintain the correct tire pressure. Do not inflate the tires above the recommended pressure. Never weld or heat a wheel and tire assembly. The heat can cause an increase in air pressure resulting in a tire explosion. Welding can structurally weaken or deform the wheel.

Check wheels for low pressure, cuts, bubbles, damaged rims or missing lug bolts and nuts.

–UN–23AUG88

When inflating tires, use a clip-on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly. Use a safety cage if available.

TS211

210 05 10

DX,RIM –19–24AUG90–1/1

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Safety Information 210 05 11

L124515

When servicing front-wheel drive tractor with the rear wheels supported off the ground and rotating wheels by engine power, always support front wheels in a similar manner. Loss of electrical power or transmission/ hydraulic system pressure will engage the front driving wheels, pulling the rear wheels off the support if front wheels are not raised. Under these conditions, front drive wheels can engage even with switch in disengaged position.

–UN–06AUG94

Service Front-Wheel Drive Tractor Safely

LX,MFWD2 –19–01MAY91–1/1

Safety Information - Air Brake System CAUTION: Compressed air tank is pressurized!

LX008009

–UN–24APR96

Always relieve pressure before working on the air brake system. Do not carry out any welding jobs on the air brake system.

LX,AIRBRAKES –19–03MAR94–1/1

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Safety Information

TS266

Radar ground speed sensor emits a very low intensity microwave signal. It will not cause any ill effects during normal use. Although intensity is low, DO NOT look directly into face of sensor while in operation, to avoid any possible eye damage.

–UN–23AUG88

Avoid Eye Contact With Radar

RX,SAFTY,RADAR1 –19–21SEP92–1/1

Keep ROPS Installed Properly

TS212

The protection offered by ROPS will be impaired if ROPS is subjected to structural damage, is involved in an overturn incident, or is in any way altered by welding, bending, drilling, or cutting. A damaged ROPS should be replaced, not reused.

–UN–23AUG88

Make certain all parts are reinstalled correctly if the roll-over protective structure (ROPS) is loosened or removed for any reason. Tighten mounting bolts to proper torque.

DX,ROPS3 –19–03MAR93–1/1

Replace Safety Signs

–UN–23AUG88

Replace missing or damaged safety signs. See the machine operator’s manual for correct safety sign placement.

TS201

210 05 12

DX,SIGNS1 –19–04JUN90–1/1

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Safety Information 210 05 13

Dispose of Waste Properly

Do not pour waste onto the ground, down a drain, or into any water source.

TS1133

Use leakproof containers when draining fluids. Do not use food or beverage containers that may mislead someone into drinking from them.

–UN–26NOV90

Improperly disposing of waste can threaten the environment and ecology. Potentially harmful waste used with John Deere equipment include such items as oil, fuel, coolant, brake fluid, filters, and batteries.

Air conditioning refrigerants escaping into the air can damage the Earth’s atmosphere. Government regulations may require a certified air conditioning service center to recover and recycle used air conditioning refrigerants. Inquire on the proper way to recycle or dispose of waste from your local environmental or recycling center, or from your John Deere dealer.

DX,DRAIN –19–03MAR93–1/1

Live With Safety

TS231

–19–07OCT88

Before returning machine to customer, make sure machine is functioning properly, especially the safety systems. Install all guards and shields.

DX,LIVE –19–25SEP92–1/1

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Safety Information 210 05 14

Safety Measures on Electronic Control Units CAUTION: Before installing test equipment on tractor, always shut off the engine and turn the key switch “OFF”.

IMPORTANT: Do not use a test lamp on any control unit. Only use a multimeter (JT05791A). IMPORTANT: To protect electronic circuits, disconnect the battery and alternator before performing any welding on the tractor.

CAUTION: Always engage the park lock when performing tests with the engine running. CAUTION: When testing is performed with the engine running, there is a risk of injury from rotating parts.

LX25599,0000243 –19–01JAN01–1/1

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Section 211

DIAGNOSTIC TROUBLE CODES Contents

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Page

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Group ATC—ATC Diagnostic Trouble Codes ATC 000170.03 — Sending Unit for Inside Air Temperature, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-1 ATC 000170.04 — Sending Unit for Inside Air Temperature, Short to Ground . . . . . . 211-ATC-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-4 ATC 000171.03 — Sending Units for Ambient Air Temperature, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-6 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-7 ATC 000171.04 — Sending Units for Ambient Temperature, Short to Ground . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-11 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-11 ATC 000628.12 — Controller, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-15 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-15 ATC 000630.02 — Controller, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-16 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-16 ATC 000639.14 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-17 ATC 000871.03 — Refrigerant Pressure Sending Unit, Shorted Circuit. . . . . . . . . 211-ATC-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-18 ATC 000871.04 — Refrigerant Pressure Sending Unit, Grounded or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-20 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-21 ATC 000876.03 — Air-Conditioning Relay, Shorted or Open Circuit . . . . . . . . . . . . . 211-ATC-23 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-24 ATC 000876.04 — Air-Conditioning Relay, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-ATC-27 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-27 ATC 000876.10 — Compressor Clutch Engages and Disengages Too Often . . . 211-ATC-30 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-30 ATC 000876.14 — Compressor Switches Off Due to Engine Overheating . . . . . . . 211-ATC-35 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-35 ATC 000919.03 — Solar Sensor Activated . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-36

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-36 ATC 000923.03 — Driver Unit for the Fan Motors, Shorted Circuit . . . . . . . . . . . . . 211-ATC-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-37 ATC 000923.04 — Fan Motor Driver Unit, Grounded or Open Circuit . . . . . . . . . . . 211-ATC-40 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-40 ATC 000923.12 — Fan Motors, Malfunction . . . . . . . . . . . . . . . . . . . . . . 211-ATC-42 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-42 ATC 001079.03 — 5-volt Power Supply, Shorted or Open Circuit . . . . . . . . . . . . . 211-ATC-45 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-45 ATC 001079.04 — 5-volt Power Supply, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-ATC-47 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-47 ATC 001546.03 — Potentiometer for Position of Water Valve, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-49 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-50 ATC 001546.04 — Potentiometer for Water Valve Position, Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-52 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-53 ATC 001547.03 — Sending Units for Evaporator Core Temperature, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-55 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-56 ATC 001547.04 — Sending Unit for Evaporator Core Temperature, Short to Ground . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-58 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-58 ATC 001548.03 — Sending Unit for Actual Outlet Air Temperature, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-60 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-61 ATC 001548.04 — Sending Unit for Actual Outlet Air Temperature, Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-63 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-63 ATC 001549.03 — Water Valve Motor, Shorted Circuit. . . . . . . . . . . . . . . . . . . . 211-ATC-65 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-66

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ATC 001549.04 — Water Valve Motor, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-ATC-68 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-69 ATC 001549.07 — Water Valve, Malfunction . . . . . . . . . . . . . . . . . . . . . . 211-ATC-71 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-72 ATC 001549.13 — Water Valve Not Calibrated . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-74 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-75 ATC 001552.03 — Temperature Control, Shorted or Open Circuit . . . . . . . . . . . . . 211-ATC-76 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-76 ATC 001552.04 — Temperature Control, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-ATC-77 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-78 ATC 001553.03 — Fan Speed Control, Shorted or Open Circuit . . . . . . . . . . . . . 211-ATC-79 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-79 ATC 001553.04 — Fan Speed Control, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-ATC-80 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-80 ATC 002000.09 — Engine Control Unit is not Transmitting any Data (Coolant Temperature) . . . . . . . . . . . . . . . . . . . . . 211-ATC-81 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-82 ATC 523848.03 — Potentiometer for Position of Air Distribution Flaps, Shorted or Open Circuit . . . . . . . . . . . . . 211-ATC-84 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-84 ATC 523848.04 — Potentiometer for Position of Air Distribution Flaps, Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-87 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-87 ATC 523848.05 — Adjusting Motor for Air Distribution, Shorted Circuit . . . . . . . . . . 211-ATC-89 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-90 ATC 523848.06 — Adjusting Motor for Air Distribution, Grounded Circuit . . . . . . . . 211-ATC-92 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-92 ATC 523848.07 — Air Distribution, Malfunction . . . . . . . . . . . . . . . . . . . . . . 211-ATC-94 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-95 ATC 523848.13 — Adjusting Motor for Air Distribution, Not Calibrated . . . . . . . . . . 211-ATC-97 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-97 ATC 523860.03 — Defog Sensor, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-ATC-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-99 ATC 523860.04 — Defog Sensor, Grounded Circuit . . . . . . . . . . . . . . . . . 211-ATC-101 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-101

ATC 523860.02 — Defog Sensor, Frequency out of Valid Range . . . . . . . 211-ATC-103 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-ATC-103

TM4726 (01NOV03)

Group BCU—BCU Diagnostic Trouble Codes BCU 000070.31 — Handbrake Failure . . . . 211-BCU-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-1 BCU 000084.02 — Wheel Speed Sender, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-BCU-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-2 BCU 000168.16 — System Voltage Too High (Engine Running). . . . . . . . . . . . . . . . . . . 211-BCU-4 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-4 BCU 000168.17 — System Voltage Too Low (Engine Speed Over 1500 rpm) . . . . 211-BCU-5 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-5 BCU 000168.18 — System Voltage Too Low (Engine Speed Up to 1500 rpm). . . . 211-BCU-6 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-7 BCU 000186.02 — Rear PTO Speed Sender, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-BCU-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-8 BCU 000186.17 — Rear PTO Speed Not Registered . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-9 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-10 BCU 000190.02 — Engine Speed Sender, Circuit Fault . . . . . . . . . . . . . . . . . . . . . 211-BCU-11 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-12 BCU 000629.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-13 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-13 BCU 000639.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-13 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-13 BCU 000639.13 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-14 BCU 000639.19 — 29-bit CAN BUS, Very High Error Rate . . . . . . . . . . . . . . . . . . . 211-BCU-15 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-16 BCU 000746.31 — Differential Lock Solenoid Valve, Circuit Fault . . . . . . . . . 211-BCU-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-17 BCU 000980.07 — Rear PTO, Switch Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-19 BCU 001676.31 — Relay for LTC Coolant Pump, Circuit Fault . . . . . . . . . . . . . . . . 211-BCU-20 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-20 BCU 001882.02 — Front PTO Speed Sender, Circuit Fault . . . . . . . . . . . . . . . 211-BCU-21

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Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-21 BCU 001882.17 — Front PTO Speed Not Registered . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-23 BCU 001893.07 — Front PTO, Switch Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-25 BCU 299780.07 — Malfunction at Turn Signal Switch . . . . . . . . . . . . . . . . . . . . . 211-BCU-26 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-27 BCU 302001.31 — INFORMATION FOR OPERATOR: 250-Hour Service . . . . . . . 211-BCU-28 BCU 302002.31 — INFORMATION FOR OPERATOR: 500-Hour Service . . . . . . . 211-BCU-28 BCU 302003.31 — INFORMATION FOR OPERATOR: 750-Hour Service . . . . . . . 211-BCU-28 BCU 302004.31 — INFORMATION FOR OPERATOR: 1500-Hour Service . . . . . . 211-BCU-28 BCU 302071.31 — INFORMATION FOR OPERATOR: Turn Off the Rear PTO Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-29 BCU 302073.31 — Rear PTO Solenoid, Circuit Fault . . . . . . . . . . . . . . . . . . . . . 211-BCU-29 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-29 BCU 302077.31 — INFORMATION FOR OPERATOR: Sit on Seat or Turn Off the Rear PTO. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-31 BCU 302080.31 — Differential Lock, Switch Error . . . . . . . . . . . . . . . . . . . . . . 211-BCU-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-31 BCU 302082.31 — INFORMATION FOR OPERATOR: Actuate the Front-Wheel Drive Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-33 BCU 302085.31 — Front Wheel Drive, Switch Error . . . . . . . . . . . . . . . . . . . . . . 211-BCU-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-33 BCU 302086.31 — Front-Wheel Drive Clutch Solenoid, Circuit Fault. . . . . . . . . 211-BCU-35 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-35 BCU 302087.31 — INFORMATION FOR OPERATOR: Tractor is Moving Although Handbrake is On. . . . . . . . . . . 211-BCU-36 BCU 302088.31 — INFORMATION FOR OPERATOR: Handbrake is On and a Gear is Selected . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-37 BCU 302089.31 — INFORMATION FOR OPERATOR: Turn Off the Rear PTO Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-37 BCU 302106.31 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-38 BCU 302120.31 — Front PTO Solenoid Valve, Circuit Fault . . . . . . . . . . . . . . . . 211-BCU-38

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-38 BCU 302122.31 — Air Brake Solenoid Valve, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-BCU-39 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-40 BCU 302123.31 — Forward/Reverse Switch Signal Doesn’t Match Signal of Not-Neutral Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-41 BCU 302124.31 — Alternator Relay, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-BCU-43 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-43 BCU 302131.31 — Fault in Turn Signal Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-44 BCU 302132.31 — Hazard Warning Light Fuse F03/03 and/or F03/04 Defective . . 211-BCU-45 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-46 BCU 302133.31 — Rear PTO Preselector, Switch Error . . . . . . . . . . . . . . . . . . . . . . 211-BCU-47 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-48 BCU 302134.31 — HMS Program Switch Defective . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-49 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-49 BCU 302135.31 — Rear PTO Remote Control, Switch Error Left. . . . . . . . . . . . 211-BCU-50 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-50 BCU 302136.31 — Rear PTO Remote Control, Switch Error Right . . . . . . . . . . 211-BCU-51 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-52 BCU 302139.31 — INFORMATION FOR OPERATOR: Rear PTO can now be Switched On at the Remote Control Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-53 BCU 302240.31 — Control Unit Connected to Wrong Wiring Harness Connector . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-54 BCU 303027.31 — Calibration of Hitch Control Unit Not Successful . . . . . . . . . . 211-BCU-55 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-56 BCU 303028.31 — Hitch Control Unit Not Calibrated . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-56 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-57 BCU 303037.03 — 5-Volt Supply Voltage Too High . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-58 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-58 BCU 303037.04 — 5-Volt Supply Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-59 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-60 BCU 303041.02 — Stepper Motor Coil 1, Open Lead . . . . . . . . . . . . . . . . . . . . . . 211-BCU-61

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Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-62 BCU 303042.02 — Stepper Motor Coil 2, Open Lead. . . . . . . . . . . . . . . . . . . . . . . 211-BCU-63 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-64 BCU 303043.02 — Stepper Motor Coil 1, Circuit Fault . . . . . . . . . . . . . . . . . . . . . 211-BCU-65 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-66 BCU 303044.02 — Stepper Motor Coil 2, Circuit Fault . . . . . . . . . . . . . . . . . . . . . 211-BCU-67 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-68 BCU 303045.04 — System Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-69 BCU 303047.03 — System Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-70 BCU 303049.02 — Conflicting Signals from Quick Raise/Lower Switch and Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-70 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-70 BCU 303049.03 — Rapid Raise/Lower Rocker Switch, Signal Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-72 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-72 BCU 303049.04 — Rapid Raise/Lower Rocker Switch, Signal Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-73 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-74 BCU 303051.03 — Left Draft Sender, Signal Voltage Too High . . . . . . . . . . . . 211-BCU-75 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-76 BCU 303051.04 — Left Draft Sender, Signal Voltage Too Low. . . . . . . . . . . . . 211-BCU-77 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-78 BCU 303052.03 — Right Draft Sender, Signal Voltage Too High . . . . . . . . . . . . 211-BCU-79 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-80 BCU 303052.04 — Right Draft Sender, Signal Voltage Too Low. . . . . . . . . . . . . 211-BCU-81 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-82 BCU 303053.03 — Sensitivity Potentiometer, Signal Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-83 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-84 BCU 303053.04 — Sensitivity Potentiometer, Signal Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-85 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-85 BCU 303054.03 — Hitch Height Control Potentiometer, Signal Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-87 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-87 BCU 303054.04 — Hitch Height Control Potentiometer, Signal Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-89

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-90 BCU 303055.03 — Position Sensor, Signal Voltage Too High . . . . . . . . . . . . 211-BCU-92 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-92 BCU 303055.04 — Position Sensor, Signal Voltage Too Low. . . . . . . . . . . . . 211-BCU-93 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-94 BCU 303056.03 — Raise Limit Potentiometer, Signal Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-95 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-96 BCU 303056.04 — Raise Limit Potentiometer, Signal Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-98 BCU 303057.03 — Rate-of-Drop Potentiometer, Signal Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-100 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-100 BCU 303057.04 — Rate-of-Drop Potentiometer, Signal Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-102 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-103 BCU 303058.02 — Remote Control Switch, Erroneous Signal . . . . . . . . . . . . . . . . . 211-BCU-105 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-105 BCU 303060.02 — Stepper Motor Deadband Out of Range . . . . . . . . . . . 211-BCU-107 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-107 BCU 303177.18 — Oil Temperature During Calibration Too Low . . . . . . . . . 211-BCU-109 BCU 303251.02 — Left Draft Sender, Disrupted Signal During Calibration . . . 211-BCU-109 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-110 BCU 303251.03 — Left Draft Sender, Signal Voltage Too High During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-111 BCU 303251.04 — Left Draft Sender, Signal Voltage Too Low During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-111 BCU 303252.02 — Right Draft Sender, Disrupted Signal During Calibration . . . 211-BCU-111 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-BCU-112 BCU 303252.03 — Right Draft Sender, Signal Voltage Too High During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-113 BCU 303252.04 — Right Draft Sender, Signal Voltage Too Low During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-113

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BCU 303255.03 — Position Sender, Signal Voltage Too High During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-114 BCU 303255.04 — Position Sender, Signal Voltage Too Low During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-114 BCU 303260.16 — Stepper Motor Raising Deadband Above Valid Range During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-115 BCU 303260.18 — Stepper Motor Raising Deadband Below Valid Range During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-115 BCU 303261.16 — Stepper Motor Lowering Deadband Above Valid Range During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-116 BCU 303261.18 — Stepper Motor Lowering Deadband Below Valid Range During Calibration . . . . . . . . . . . . . . . . . . . . . . 211-BCU-116

BIF 000127.00 — Transmission Oil Pressure Low. . . . . . . . . . . . . . . . . . . . . . 211-BIF-24 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-24 BIF 000167.16 — D+ Voltage High (Engine Running) . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-26 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-27 BIF 000167.17 — D+ Voltage Too Low (Engine Speed Over 1500 rpm) . . . . . . . . 211-BIF-28 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-28 BIF 000167.18 — D+ Voltage Too Low (Engine Speed Up to 1500 rpm) . . . . . . . 211-BIF-30 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-30 BIF 000168.16 — System Voltage Too High (Engine Running). . . . . . . . . . . . . . . . . . . 211-BIF-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-32 BIF 000168.17 — System Voltage Too Low (Engine Speed Over 1500 rpm) . . . . 211-BIF-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-33 BIF 000168.18 — System Voltage Too Low (Engine Speed Up to 1500 rpm). . . . 211-BIF-35 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-35 BIF 000177.00 — Transmission Oil Temperature Very High . . . . . . . . . . . . . . 211-BIF-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-37 BIF 000177.03 — Transmission Oil Temperature Sender, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-40 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-40 BIF 000177.04 — Transmission Oil Temperature Sender, Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-42 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-42 BIF 000177.16 — Transmission Oil Temperature High . . . . . . . . . . . . . . . . . . 211-BIF-44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-44 BIF 000186.16 — INFORMATION FOR OPERATOR: Warning, Rear PTO Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-47 BIF 000190.02 — No Signal From Engine Speed Sender . . . . . . . . . . . . . . . . . . . . . 211-BIF-47 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-47 BIF 000628.02 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-49 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-49 BIF 000639.02 — 29-Bit CAN BUS, Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-49 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-50 BIF 301141.31 — INFORMATION FOR OPERATOR: Switch Off Worklights While Driving on Road . . . . . . . . . . . . . . . 211-BIF-51

Group BIF—BIF Diagnostic Trouble Codes BIF 000096.03 — Fuel Gauge Sender, Shorted or Open Circuit . . . . . . . . . . . . . . . 211-BIF-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-1 BIF 000096.04 — Fuel Gauge Sender, Grounded Circuit . . . . . . . . . . . . . . . . . . . . 211-BIF-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-3 BIF 000096.17 — Low Fuel Level . . . . . . . . . 211-BIF-4 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-5 BIF 000100.00 — Engine Oil Pressure Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-6 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-7 BIF 000107.16 — Engine Air Cleaner Clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-8 BIF 000110.00 — Coolant Temperature Very High. . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-9 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-10 BIF 000110.03 — Coolant Temperature Sender, Short or Open Circuit . . . . . . . . . 211-BIF-12 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-13 BIF 000110.04 — Coolant Temperature Sender, Short to Ground . . . . . . . . . . . . . 211-BIF-15 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-15 BIF 000110.16 — Coolant Temperature High. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-17 BIF 000126.15 — Hydraulic Oil Filter Dirty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-19 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-20 BIF 000126.16 — Transmission/Hydraulic Oil Filter Dirty . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-21 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-22 TM4726 (01NOV03)

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BIF 301143.31 — INFORMATION FOR OPERATOR: Preheat Time Remaining . . . . . . . . . . . . . . . . . . . . . . . . 211-BIF-52

ECU 000105.03 — Manifold Air Temperature Input Voltage High . . . . . . 211-ECU-53 ECU 000105.04 — Manifold Air Temperature Input Voltage Low . . . . . . . 211-ECU-55 ECU 000105.16 — Manifold Air Temperature Moderately High. . . . . . . . . . . . . . . . . . . 211-ECU-57 ECU 000110.00 — Engine Coolant Temperature Extremely High . . . . . . . . . 211-ECU-59 ECU 000110.03 — Engine Coolant Temperature Input Voltage High . . . . . . 211-ECU-62 ECU 000110.04 — Engine Coolant Temperature Input Voltage Low . . . . . . . 211-ECU-66 ECU 000110.15 — Engine Coolant Temperature Slightly High . . . . . . . . . . . 211-ECU-70 ECU 000110.16 — Engine Coolant Temperature Moderately High . . . . . . . . 211-ECU-73 ECU 000158.17 — ECU Power Down Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-76 ECU 000160.02 — Wheel Speed Sensor Input Noise . . . . . . . . . . . . . . . . . . . . . . 211-ECU-79 ECU 000174.00 — Fuel Temperature Extremely High . . . . . . . . . . . . . . . . . . . 211-ECU-81 ECU 000174.03 — Fuel Temperature Input Voltage High . . . . . . . . . . . . . . . . . . . . . 211-ECU-82 ECU 000174.04 — Fuel Temperature Input Voltage Low. . . . . . . . . . . . . . . . . . . . . . 211-ECU-84 ECU 000174.15 — Fuel Temperature Slightly High . . . . . . . . . . . . . . . . . . . . . 211-ECU-86 ECU 000174.16 — Fuel Temperature Moderately High. . . . . . . . . . . . . . . . . . . 211-ECU-87 ECU 000174.31 — Fuel Temperature Sensor Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-90 ECU 000189.00 — Engine Speed Derate . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-91 ECU 000190.00 — Engine Racing Excessively . . . . . . . . . . . . . . . . . . . . . . 211-ECU-93 ECU 000190.02 — Engine Speed Input Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-96 ECU 000190.16 — Engine Speed Slightly High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-97 ECU 000611.03 — Electronic Injector Wiring Shorted To Power Source. . . . . 211-ECU-100 ECU 000611.04 — Electronic Injector Wiring Shorted To Ground . . . . . . . . . . 211-ECU-102 ECU 000620.03 — Sensor Supply 2 Voltage High . . . . . . . . . . . . . . . . . . . . 211-ECU-104 ECU 000620.04 — Sensor Supply 2 Voltage Low. . . . . . . . . . . . . . . . . . . . . 211-ECU-106 ECU 000627.01 — Electronic Injector Supply Voltage Problem . . . . . . . . . . . . . . . . . 211-ECU-108

Group ECU—ECU Diagnostic Trouble Codes ECU 000028.03 — Cruise Control Potentiometer Input Voltage High . . . . . . 211-ECU-1 ECU 000028.04 — Cruise Control Potentiometer Input Voltage Low . . . . . . . 211-ECU-5 ECU 000029.03 — Hand Throttle Potentiometer Input Voltage High . . . . . . 211-ECU-9 ECU 000029.04 — Hand Throttle Potentiometer Input Voltage Low . . . . . . 211-ECU-13 ECU 000084.31 — Vehicle Speed Mismatch . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-17 ECU 000091.03 — Accelerator Pedal Potentiometer Input Voltage High . . . . . 211-ECU-19 ECU 000091.04 — Accelerator Pedal Potentiometer Input Voltage Low . . . . . . 211-ECU-23 ECU 000091.07 — Hand Throttle or Accelerator Pedal Not Calibrated Correctly . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-26 ECU 000091.13 — Hand Throttle or Accelerator Pedal, Calibration Interrupted . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-27 ECU 000094.01 — Fuel Supply Pressure Extremely Low . . . . . . . . . . . . . . . . . . . . 211-ECU-28 ECU 000094.03 — Fuel Supply Pressure Input Voltage High . . . . . . . . . . . . . . . . . 211-ECU-29 ECU 000094.04 — Fuel Supply Pressure Input Voltage Low . . . . . . . . . . . . . . . . . 211-ECU-31 ECU 000094.10 — Fuel Rail Pressure Loss Detected . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-33 ECU 000094.13 — Fuel Rail Pressure Higher Than Expected . . . . . . . . . . . . . . . . . . . 211-ECU-35 ECU 000094.17 — Fuel Rail Pressure Not Developed . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-37 ECU 000094.18 — Fuel Supply Pressure Moderately Low . . . . . . . . . . . . . . . . . . . 211-ECU-38 ECU 000097.03 — Input Voltage from Water-in-Fuel Sensor High. . . . . . . . . . . 211-ECU-39 ECU 000097.04 — Input Voltage from Water-in-Fuel Sensor Low . . . . . . . . . . . 211-ECU-41 ECU 000097.16 — Water in Fuel Detected . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-43 ECU 000100.01 — Engine Oil Pressure Extremely Low . . . . . . . . . . . . . . . . . . . . 211-ECU-45 ECU 000100.03 — Engine Oil Pressure Input Voltage High . . . . . . . . . . . . . . . . . . . . . 211-ECU-47 ECU 000100.04 — Engine Oil Pressure Input Voltage Low. . . . . . . . . . . . . . . . . . . . . . 211-ECU-49 ECU 000100.18 — Engine Oil Pressure Moderately Low . . . . . . . . . . . . . . . . . . . 211-ECU-51 TM4726 (01NOV03)

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ECU 000627.04 — ECU Unswitched Power Missing . . . . . . . . . . . . . . . . . . . 211-ECU-109 ECU 000629.13 — ECU Error. . . . . . . . . 211-ECU-110 ECU 000629.19 — ECU to Pump Communication Error . . . . . . . . . . . . . . 211-ECU-113 ECU 000632.02 — Fuel Shutoff Error . . . 211-ECU-114 ECU 000632.05 — Fuel Shutoff Non-Functional . . . . . . . . . . . . . . . . . . 211-ECU-115 ECU 000636.02 — Pump Position Sensor Input Noise . . . . . . . . . . . . . . . . . . . . . 211-ECU-116 ECU 000636.08 — Pump Position Sensor Input Missing . . . . . . . . . . . . . . . . . . . . 211-ECU-118 ECU 000636.10 — Pump Position Sensor Input Pattern Error . . . . . . . . . . . . . . . . 211-ECU-120 ECU 000637.02 — Crank Position Input Noise . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-122 ECU 000637.07 — Crank Position/Pump Position Timing Moderately Out of Sync . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-125 ECU 000637.08 — Crank Position Input Missing . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-127 ECU 000637.10 — Crank Position Input Pattern Error . . . . . . . . . . . . . . . . . . . . 211-ECU-129 ECU 000651.05 — Cylinder No. 1 EI Circuit Open . . . . . . . . . . . . . . . . . . . . 211-ECU-132 ECU 000651.06 — Cylinder No. 1 EI Circuit Shorted . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-134 ECU 000651.07 — Cylinder No. 1 EI Fuel Delivery Failure . . . . . . . . . . . . . . . . . . 211-ECU-136 ECU 000652.05 — Cylinder No. 2 EI Circuit Open . . . . . . . . . . . . . . . . . . . . 211-ECU-138 ECU 000652.06 — Cylinder No. 2 EI Circuit Shorted . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-140 ECU 000652.07 — Cylinder No. 2 EI Fuel Delivery Failure . . . . . . . . . . . . . . . . . . 211-ECU-142 ECU 000653.05 — Cylinder No. 3 EI Circuit Open . . . . . . . . . . . . . . . . . . . . 211-ECU-144 ECU 000653.06 — Cylinder No. 3 EI Circuit Shorted . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-146 ECU 000653.07 — Cylinder No. 3 EI Fuel Delivery Failure . . . . . . . . . . . . . . . . . . 211-ECU-148 ECU 000654.05 — Cylinder No. 4 EI Circuit Open . . . . . . . . . . . . . . . . . . . . 211-ECU-150 ECU 000654.06 — Cylinder No. 4 EI Circuit Shorted . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-152 ECU 000654.07 — Cylinder No. 4 EI Fuel Delivery Failure . . . . . . . . . . . . . . . . . . 211-ECU-154 ECU 000655.05 — Cylinder No. 5 EI Circuit Open . . . . . . . . . . . . . . . . . . . . 211-ECU-156 ECU 000655.06 — Cylinder No. 5 EI Circuit Shorted . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-158 ECU 000655.07 — Cylinder No. 5 EI Fuel Delivery Failure . . . . . . . . . . . . . . . . . . 211-ECU-160

ECU 000656.05 — Cylinder No. 6 EI Circuit Open . . . . . . . . . . . . . . . . . . . . 211-ECU-162 ECU 000656.06 — Cylinder No. 6 EI Circuit Shorted . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-164 ECU 000656.07 — Cylinder No. 6 EI Fuel Delivery Failure . . . . . . . . . . . . . . . . . . 211-ECU-166 ECU 000676.03 — Glow Plug Relay Voltage High . . . . . . . . . . . . . . . . . . . . 211-ECU-168 ECU 000676.05 — Glow Plug Relay Voltage Low. . . . . . . . . . . . . . . . . . . . . 211-ECU-170 ECU 000729.03 — Inlet Air Heater Signal High. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-172 ECU 000729.05 — Inlet Air Heater Signal Low . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-174 ECU 000810.02 — Calculated Vehicle Speed Input Signal Noise . . . . . . . . . . 211-ECU-176 ECU 000898.09 — Engine Speed or Torque Message Invalid. . . . . . . . . . . . . . . . . . 211-ECU-178 ECU 000931.02 — Pump Current Instability . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-180 ECU 000931.03 — Pump Current Feedback Input Voltage High. . . . . . . . 211-ECU-181 ECU 000931.04 — Pump Current Feedback Input Voltage Low . . . . . . . . 211-ECU-182 ECU 000931.15 — Pump Current Out of Range (Engine OFF) . . . . . . . . . . . . . . 211-ECU-183 ECU 000931.31 — Pump Current Not Controllable . . . . . . . . . . . . . . . . . . . . . 211-ECU-184 ECU 001041.02 — Start Signal Missing . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-185 ECU 001041.03 — Start Signal Always Active . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-186 ECU 001069.02 — Tire Size Error . . . . . 211-ECU-186 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-187 ECU 001069.09 — Tire Size Invalid . . . . 211-ECU-188 ECU 001069.31 — Tire Size Error . . . . . 211-ECU-190 ECU 001076.00 — Pump Control Valve Closure Too Long . . . . . . . . . . . . . . . . 211-ECU-192 ECU 001076.01 — Pump Control Valve Closure Too Short . . . . . . . . . . . . . . . . 211-ECU-194 ECU 001076.02 — Pump Detected Defect . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-196 ECU 001076.03 — Pump Solenoid Current High . . . . . . . . . . . . . . . . . . . . 211-ECU-197 ECU 001076.05 — Pump Solenoid Circuit Open . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-199 ECU 001076.06 — Pump Solenoid Circuit Severely Shorted . . . . . . . . . . . . . . . . . 211-ECU-201 ECU 001076.07 — Pump Control Valve Closure Not Detected . . . . . . . . . . . . . 211-ECU-203

TM4726 (01NOV03)

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ECU 001076.10 — Pump Solenoid Circuit Moderately Shorted . . . . . . . . . . . . . . . 211-ECU-205 ECU 001076.13 — Current Drop - Time Fault . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-207 ECU 001077.07 — Attempting to Fuel Without Command . . . . . . . . . . . . . . . . 211-ECU-208 ECU 001077.11 — Pump Supply Voltage Out Of Range . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-209 ECU 001077.12 — Pump Self-Test Error . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-210 ECU 001077.19 — Communication Error between ECU and Pump Detected . . . 211-ECU-211 ECU 001077.31 — Pump Initiated Engine Protection . . . . . . . . . . . . . . . . . . . . . . 211-ECU-212 ECU 001078.07 — ECU/Pump Timing Moderately Out of Sync . . . . . . . . . . . . 211-ECU-213 ECU 001078.11 — ECU/Pump Engine Speed Out of Sync . . . . . . . . . . . . . . . 211-ECU-214 ECU 001078.31 — ECU/Pump Timing Extremely Out of Sync . . . . . . . . . . . . . 211-ECU-215 ECU 001079.03 — Sensor Supply 1 Voltage High . . . . . . . . . . . . . . . . . . . . 211-ECU-216 ECU 001079.04 — Sensor Supply 1 Voltage Low. . . . . . . . . . . . . . . . . . . . . 211-ECU-220 ECU 001080.03 — Sensor Supply 2 Voltage High . . . . . . . . . . . . . . . . . . . . 211-ECU-224 ECU 001080.04 — Sensor Supply 2 Voltage Low. . . . . . . . . . . . . . . . . . . . . 211-ECU-226 ECU 001347.03 — Pump Control Valve Current High . . . . . . . . . . . . . . . . . . . . 211-ECU-228 ECU 001347.05 — Pump Control Valve Current Mismatch . . . . . . . . . . . . . . . . 211-ECU-230 ECU 001347.07 — Fuel Rail Pressure Control Error . . . . . . . . . . . . . . . . . . . . 211-ECU-232 ECU 001485.02 — Pump Power Relay Fault . . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-233 ECU 001569.31 — Fuel Derate. . . . . . . . 211-ECU-234 ECU 002000.06 — Internal ECU Failure . . . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-236 ECU 002000.13 — Security Violation . . . 211-ECU-237 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-ECU-237

EPC 000639.13 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-5 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-5 EPC 000639.19 — 29-bit CAN BUS, Very High Error Rate . . . . . . . . . . . . . . . . . . . . 211-EPC-6 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-6 EPC 306014.02 — Clutch Pedal Potentiometer, Incorrect Voltage Ratio at Channel 1 and 2 . . . . . . . . . . . . . . . . . 211-EPC-7 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-7 EPC 306015.03 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-9 EPC 306016.04 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-10 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-11 EPC 306020.31 — Control Unit, Wrong Input Value . . . . . . . . . . . . . . . . . . . . . . 211-EPC-12 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-12 EPC 306025.31 — Transmission Enable Relay, Circuit Fault . . . . . . . . . . . . . . . . 211-EPC-13 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-14 EPC 306026.31 — Reverse Drive Lever Detent Coil, Circuit Fault . . . . . . . . . . . . 211-EPC-15 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-16 EPC 306027.31 — Reverse Solenoid, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-EPC-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-17 EPC 306028.31 — Forward Solenoid, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-EPC-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-19 EPC 306033.14 — Proportional Enable Solenoid, Circuit Fault . . . . . . . . . . . . . . 211-EPC-20 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-21 EPC 306034.31 — Proportional Enable Solenoid Valve Opened by Mistake . . . . 211-EPC-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-23 EPC 306035.31 — Proportional Enable Solenoid Valve Closed by Mistake . . . . . 211-EPC-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-25 EPC 306039.31 — Park Lock Switch Signal and Signal from Forward or Reverse Switch Simultaneously Active. . . . . . . . . 211-EPC-27 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-28 EPC 306040.31 — Not-Neutral Switch Closed by Mistake . . . . . . . . . . . . . . . . . 211-EPC-29 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-30 EPC 306041.31 — Forward and Reverse Switches Closed at Same Time . . . . . . . 211-EPC-31

Group EPC—EPC Diagnostic Trouble Codes EPC 000158.04 — System Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-1 EPC 000629.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-3 EPC 000639.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-4 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-4 TM4726 (01NOV03)

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Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-32 EPC 306042.31 — Forward Switch Closed and Not-Neutral Switch Open . . . . . . . . 211-EPC-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-33 EPC 306043.31 — Reverse Switch Closed and Not-Neutral Switch Open . . 211-EPC-34 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-35 EPC 306046.31 — Neutral Switch in Reverse Drive Lever Closed During Initialization . . . . . . . . . . . . . . . . . . . . . . 211-EPC-36 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-36 EPC 306050.03 — Transmission Enable Pressure Too High. . . . . . . . . . . . . . . . . 211-EPC-38 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-39 EPC 306051.04 — Transmission Enable Pressure Too Low . . . . . . . . . . . . . . . . . 211-EPC-41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-41 EPC 306053.31 — Clutch Pedal Potentiometer is Defective . . . . . . . . . . . 211-EPC-44 EPC 306054.31 — Clutch Pedal Switch Opened by Mistake . . . . . . . . . . . . . . . . 211-EPC-44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-45 EPC 306055.31 — Come-Home Operation Activated . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-46 EPC 306056.31 — Forward/Reverse Switch Activated During Initialization . . . 211-EPC-46 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-47 EPC 306057.31 — Faulty Transmission Enable Signal . . . . . . . . . . . . . . . . . . . . 211-EPC-48 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-49 EPC 306058.31 — Ground Speed Registered During Calibration . . . . . . . . . . . . . . . . . 211-EPC-51 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-51 EPC 306059.31 — Excessively High Transmission Speed During Calibration . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-53 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-53 EPC 306060.31 — Engine Control Unit or Basic Control Unit has Stopped Transmitting Data (Engine Speed) . . . . . 211-EPC-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-55 EPC 306061.31 — Transmission Speed Too Low . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-59 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-60 EPC 306063.14 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-61 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-61 EPC 306065.14 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-62 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-62 EPC 306069.14 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-63 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-63

EPC 306070.03 — Upshift/Downshift Switch, Short Circuit. . . . . . . . . . . . . . . . . . . . . . 211-EPC-64 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-64 EPC 306071.03 — Power/ECO Mode Switch or Auto Mode Switch, Shorted Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-66 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-67 EPC 306080.31 — Auto-Mode Potentiometer, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-EPC-69 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-69 EPC 306102.31 — Power/ECO Mode Indicator Light, Circuit Fault . . . . . . . . . . 211-EPC-71 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-71 EPC 306111.31 — K1 Solenoid Valve, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . 211-EPC-73 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-73 EPC 306112.31 — K2 and/or K3 Solenoid Valve or Solenoid 1 and/or Solenoid 2, Circuit Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-74 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-75 EPC 306120.09 — Basic Control Unit has Stopped Transmitting Data (Transmission Output Speed). . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-79 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-80 EPC 306121.09 — Engine Control Unit or Basic Control Unit has Stopped Transmitting Data (Engine Speed) . . . . . 211-EPC-84 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-85 EPC 306122.09 — Engine Control Unit has Stopped Transmitting Data (Hand Throttle/Accelerator Pedal). . . . . . . . . . . 211-EPC-89 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-90 EPC 306123.09 — Basic Control Unit has Stopped Transmitting Data (Engine Operating Hours) . . . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-95 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-95 EPC 306240.31 — Control Unit Connected to Wrong Harness Connector . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-EPC-99

TM4726 (01NOV03)

Group JDL—JDL Diagnostic Trouble Codes JDL 298887.31 — Control Unit Configuration and Machine PIN Conflict . . . . . . . . . . . . . . . . . . . . . . . . . . 211-JDL-1 JDL 298886.31 — Control Unit Power Limit Exceeded . . . . . . . . . . . . . . . . . . . . . . . . 211-JDL-2 JDL 298885.31 — Control Unit Memory Capacity Exceeded . . . . . . . . . . . . . . . . . 211-JDL-3 JDL 298883.31 — CAN Bus Fault . . . . . . . 211-JDL-4

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JDL 001542.04 — Control Unit Voltage Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-JDL-5 JDL 000629.12 — Control Unit Fault . . . . . 211-JDL-6 JDL 000964.13 — Invalid Time / Date . . . . 211-JDL-7 JDL 298876.31 — Machine Data Configuration Fault 1 . . . . . . . . . . . . . . . . 211-JDL-8 JDL 298875.31 — Machine Data Configuration Fault 2 . . . . . . . . . . . . . . . . 211-JDL-9 JDL 298874.31 — Machine Data Configuration Fault 3 . . . . . . . . . . . . . . . 211-JDL-10 JDL 298873.31 — Machine Data Configuration Fault 4 . . . . . . . . . . . . . . . 211-JDL-11 JDL 298872.31 — Machine Data Configuration Fault 5 . . . . . . . . . . . . . . . 211-JDL-12 JDL 298882.31 — GPS Lock Fault . . . . . . 211-JDL-13 JDL 298881.18 — GPS Lock Lost. . . . . . . 211-JDL-14 JDL 299620.31 — GPS Antenna / Cable Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-JDL-15 JDL 298880.31 — Call Unanswered . . . . . 211-JDL-16 JDL 299616.31 — Call Disconnected . . . . 211-JDL-17 JDL 298879.31 — Cellular Signal Weak or No Service. . . . . . . . . . . . . . . . . . . . . . . 211-JDL-18 JDL 299615.31 — Cellular Data Bit Error Rate too High . . . . . . . . . . . . . . . . . . . . 211-JDL-19 JDL 299619.31 — Cellular Personal Identification Number Blocked . . . . . . . . 211-JDL-20 JDL 299618.31 — Communications Service Identification Module Fault . . . . 211-JDL-21 JDL 298878.31 — Line Busy. . . . . . . . . . . 211-JDL-22 JDL 299617.31 — Data Exchange Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-JDL-23 JDL 298877.31 — Modem Fault . . . . . . . . 211-JDL-24 JDL 299614.31 — Data Upload Fault . . . . 211-JDL-25 JDL 299613.31 — Data Download Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-JDL-26

PLC 328012.31 — Transmission Output Speed sender, Open or Shorted Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-7 PLC 328016.31 — Park Lock Pressure Sender, Shorted Circuit . . . . . . . . . . . . . . 211-PLC-7 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-8 PLC 328017.31 — Park Lock Pressure Sender, Grounded or Open Circuit . . . . . 211-PLC-9 PLC 328020.31 — Park Lock Solenoid Valve, Grounded or Shorted Circuit . . . . 211-PLC-10 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-10 PLC 328021.31 — Park Lock Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-PLC-12 PLC 328030.31 — Transmission Control Unit has Stopped Transmitting Data . . . 211-PLC-12 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-13 PLC 328040.31 — System Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-15 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-16 PLC 328050.31 — Park Lock Alarm, Open or Shorted Circuit at Supply Line . . . . . . 211-PLC-17 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-18 PLC 328051.31 — Park Lock Alarm, Shorted Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-19 PLC 328061.31 — Signals Received from Reverse Drive Lever Do Not Match the CAN BUS Command from the TCU . . . . 211-PLC-19 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-20 PLC 328101.31 — Power Supply to Park Lock Pressure Sender, Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-23 PLC 328102.31 — Power Supply to Park Lock Pressure Sender, Shorted Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-24 PLC 328106.31 — Controller, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-25 PLC 328240.31 — Controller Connected to Wrong Wiring Harness Connector . . . 211-PLC-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-26

Group PLC—PLC Diagnostic Trouble Codes PLC 000629.12 — Controller, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-1 PLC 000639.12 — Controller, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-2 PLC 000639.13 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-3 PLC 000639.19 — 29-bit CAN BUS, Very High Error Rate . . . . . . . . . . . . . . . . . . . . 211-PLC-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-4 PLC 328010.31 — Transmission Output Speed Sender, Grounded Circuit . . . . . . . 211-PLC-4 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PLC-5 TM4726 (01NOV03)

Group PRF—PRF Diagnostic Trouble Codes PRF 000629.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PRF-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-PRF-1 PRF 000639.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-PRF-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-PRF-1 PRF 000639.13 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . . 211-PRF-2

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Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . PRF 000639.19 — 29-bit CAN BUS, Very High Error Rate . . . . . . . . . . . . . . . . . . . . Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . PRF 100177.19 — Key Error . . . . . . . . . . . Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .

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211-PRF-2

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-19 SFA 324047.05 — Solenoid Y11, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-SFA-20 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-20 SFA 324048.31 — Up is Commanded by the Cab Suspension Control Unit, but the Cab Moves Down . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-21 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-21 SFA 324049.31 — Down is Commanded by the Cab Suspension Control Unit, but the Cab Moves Up. . . . . . . . . . . . . . . . . 211-SFA-23 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-24 SFA 324050.31 — Axle Moves Down Although Commanded by SFA to Move Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-26 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-26 SFA 324051.31 — Axle Moves Up Although Commanded by SFA to Move Down . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-28 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-28 SFA 324052.31 — Low Engine Speed Low (after Engine Start). . . . . . . . . . . . . 211-SFA-30 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-30 SFA 324053.31 — Low Engine Speed (During Operation) . . . . . . . . . . . . . . . . . 211-SFA-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-32 SFA 324060.31 — No Axle Movement During Calibration Although Command Was Given. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-34 SFA 324061.31 — No Axle Movement During Operation Although Command Was Given. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-36 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-36 SFA 324062.31 — No Axle Movement During Travel Although Command Was Given. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-38 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-39 SFA 324063.31 — No Cab Movement During Calibration Although Command Was Given. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-41 SFA 324064.31 — No Cab Movement During Operation Although Command Was Given. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-43 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-43 SFA 324065.31 — No Cab Movement During Travel Although Command Was Given. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-45 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-45

211-PRF-4 211-PRF-4 211-PRF-6 211-PRF-6

Group SFA—SFA Diagnostic Trouble Codes SFA 000629.12 — Control Unit, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-1 SFA 000639.12 — Control Unit, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-1 SFA 000639.13 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-2 SFA 000639.19 — 29-bit CAN BUS, Very High Error Rate . . . . . . . . . . . . . . . . . . . . 211-SFA-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-4 SFA 324025.13 — Suspended Front Axle Control Unit (SFA) Incorrectly Calibrated . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-5 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-5 SFA 324026.13 — Suspended Front Axle Control Unit Not Calibrated . . . . . . . . . . . 211-SFA-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-8 SFA 324027.13 — Suspended Cab Control Unit Not Calibrated Correctly . . . . 211-SFA-9 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-9 SFA 324028.13 — Suspended Cab Control Unit Not Calibrated . . . . . . . . . . 211-SFA-12 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-12 SFA 324040.04 — Solenoid Y42, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-SFA-13 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-13 SFA 324041.05 — Solenoid Y42, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-SFA-14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-14 SFA 324042.04 — Solenoid Y43, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-SFA-15 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-15 SFA 324043.05 — Solenoid Y43, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-SFA-16 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-16 SFA 324044.04 — Solenoid Y10, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-SFA-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-17 SFA 324045.05 — Solenoid Y10, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-SFA-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-18 SFA 324046.04 — Solenoid Y11, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-SFA-19 TM4726 (01NOV03)

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SFA 324066.03 — Power Supply to TLS Position Sensor, Shorted Circuit . . . . . . 211-SFA-47 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-47 SFA 324067.04 — Power Supply to TLS Position Sensor, Grounded or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-48 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-49 SFA 324068.13 — TLS Position Sensor, Signal Voltage Too Low During Downward Movement . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-50 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-51 SFA 324069.13 — TLS Position Sensor, Signal Voltage Too High (Lowered Fully) . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-52 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-53 SFA 324070.13 — TLS Position Sensor, Signal Voltage Too High During Upward Movement . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-55 SFA 324071.13 — TLS Position Sensor, Signal Voltage Too Low (Raised Fully) . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-56 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-57 SFA 324072.13 — TLS Position Sensor, Signal Voltage Out of Range When in Mid-Position. . . . . . . . . . . . . . . . . . . . . . 211-SFA-58 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-59 SFA 324073.03 — Power Supply to Cab Position Sensor, Shorted Circuit . . . . . . 211-SFA-60 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-61 SFA 324074.04 — Power Supply to Cab Position Sensor, Grounded or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-62 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-63 SFA 324075.13 — Cab Position Sensor, Signal Voltage Too Low During Downward Movement . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-64 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-65 SFA 324076.13 — Cab Position Sensor, Signal Voltage Too High (Lowered Fully) . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-66 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-67 SFA 324077.13 — Cab Position Sensor, Signal Voltage Too High During Upward Movement . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-68 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-69 SFA 324078.13 — Cab Position Sensor, Signal Voltage Too Low (Raised Fully) . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-70 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-71 SFA 324079.13 — Cab Position Sensor, Signal Voltage Out of Range When in Mid-Position. . . . . . . . . . . . . . . . . . . . . . 211-SFA-72

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-72 SFA 324080.09 — Engine Control Unit or Basic Control Unit has Stopped Sending Data (Engine Speed) . . . . . . . . . . . . . . . 211-SFA-74 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-74 SFA 324081.09 — Basic Control Unit has Stopped Sending Data (Travel Speed). . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-80 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-80 SFA 324082.09 — Engine Control Unit or Basic Control Unit Sends No Data While Tractor Is Moving (Engine Speed) . . . . . 211-SFA-84 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-84 SFA 324106.31 — Control Unit, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-90 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-90 SFA 324240.31 — Control Unit Connected to Wrong Harness Connector . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-90 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SFA-91

TM4726 (01NOV03)

Group SIC—SIC Diagnostic Trouble Codes SIC 000629.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-1 SIC 000639.12 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-1 SIC 000639.13 — 29-bit CAN BUS, High Error Rate . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-3 SIC 000639.19 — 29-bit CAN BUS, Very High Error Rate . . . . . . . . . . . . . . . . . . . . .211-SIC-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-4 SIC 334001.09 — ECU or BCU is/are Not Sending Any Data (Engine Speed) . . . . . .211-SIC-4 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-5 SIC 334002.09 — BCU Is Not Transmitting Any Data (Engine Operating Hours) . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-9 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-10 SIC 334003.09 — Transmission Control Unit or BIF is/are Not Sending Any Data (Hydraulic Oil Temperature). . . . . . . . . . . 211-SIC-12 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-13 SIC 334010.01 — Hydraulic Oil Temperature Too Low . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-17 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-18 SIC 334028.14 — Control Unit Not Calibrated . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-22

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SIC 334041.31 — E-ICV No.1, Potentiometer at Multi-Function Lever Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-23 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-23 SIC 334042.31 — E-ICV No.2, Potentiometer at Multi-Function Lever Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-24 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-25 SIC 334043.31 — E-ICV No.3, Potentiometer at Multi-Function Lever Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-26 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-27 SIC 334044.31 — E-SCV No.1, Potentiometer at Control Lever Faulty . . .211-SIC-28 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-29 SIC 334045.31 — E-SCV No.2, Potentiometer at Control Lever Faulty . . .211-SIC-30 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-31 SIC 334046.31 — E-SCV No.3, Potentiometer at Control Lever Faulty . . .211-SIC-32 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-33 SIC 334047.31 — E-SCV No.4, Potentiometer at Control Lever Faulty . . .211-SIC-34 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-35 SIC 334051.31 — E-ICV No.1, Switch at Multi-Function Lever Faulty . . . . . . . . . . .211-SIC-36 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-37 SIC 334052.31 — E-ICV No.2, Switch at Multi-Function Lever Faulty . . . . . . . . . . .211-SIC-38 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-38 SIC 334053.31 — E-ICV No.3, Switch at Multi-Function Lever Faulty . . . . . . . . . . .211-SIC-39 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-39 SIC 334054.31 — E-SCV No.1, Switch at Control Lever Faulty . . . . . . . . . . . . . . . .211-SIC-40 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-41 SIC 334055.31 — E-SCV No.2, Switch at Control Lever Faulty . . . . . . . . . . . . . . . .211-SIC-42 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-42 SIC 334056.31 — E-SCV No.3, Switch at Control Lever Faulty . . . . . . . . . . . . . . . .211-SIC-43 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-43 SIC 334057.31 — E-SCV No.4, Switch at Control Lever Faulty . . . . . . . . . . . . . . . .211-SIC-44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-45 SIC 334059.31 — 5-volt Power Supply is Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-46 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-46 SIC 334060.14 — E-ICV, Transport Lock Switch is Faulty . . . . . . . . . . . . . . . . . . . .211-SIC-48 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-48 SIC 334061.14 — E-ICV, Safety Switch is Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-49

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-49 SIC 334062.14 — E-SCV, Transport Lock Switch is Faulty . . . . . . . . . . . . . . . . . . . .211-SIC-50 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-51 SIC 334106.31 — Control Unit, Internal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-52 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-52 SIC 334136.18 — E-ICV No.1, Stepper Motor, Power Supply Too Low. . . . . . . . .211-SIC-53 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-53 SIC 334137.01 — E-ICV No.1, Stepper Motor, Power Supply Very Low . . . . . . . .211-SIC-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-55 SIC 334138.00 — E-ICV No.1, Stepper Motor, Power Supply Too High . . . . . . . .211-SIC-56 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-56 SIC 334139.14 — E-ICV No.1, Stepper Motor, No Connection to Controller . . . . .211-SIC-57 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-57 SIC 334140.14 — E-ICV No.1, Stepper Motor, Coil Temperature Too Low . . . . . .211-SIC-58 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-58 SIC 334141.14 — E-ICV No.1, Stepper Motor, Coil Temperature Too High. . . . . . 211-SIC-59 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-60 SIC 334144.18 — E-ICV No.2, Stepper Motor, Power Supply Too Low. . . . . . . . .211-SIC-61 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-61 SIC 334145.01 — E-ICV No.2, Stepper Motor, Power Supply Very Low . . . . . . . .211-SIC-62 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-63 SIC 334146.00 — E-ICV No.2, Stepper Motor, Power Supply Too High . . . . . . . .211-SIC-64 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-64 SIC 334147.14 — E-ICV No.2, Stepper Motor, No Connection to Controller . . . . .211-SIC-65 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-65 SIC 334148.14 — E-ICV No.2, Stepper Motor, Coil Temperature Too Low . . . . . .211-SIC-66 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-66 SIC 334149.14 — E-ICV No.2, Stepper Motor, Coil Temperature Too High. . . . . . 211-SIC-67 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-68 SIC 334152.18 — E-ICV No.3, Stepper Motor, Power Supply Too Low. . . . . . . . .211-SIC-69 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-69 SIC 334153.01 — E-ICV No.3, Stepper Motor, Power Supply Very Low . . . . . . . .211-SIC-70 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-71 SIC 334154.00 — E-ICV No.3, Stepper Motor, Power Supply Too High . . . . . . . .211-SIC-72

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Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-72 SIC 334155.14 — E-ICV No.3, Stepper Motor, No Connection to Controller . . . . .211-SIC-73 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-73 SIC 334156.14 — E-ICV No.3, Stepper Motor, Coil Temperature Too Low . . . . . .211-SIC-74 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-74 SIC 334157.14 — E-ICV No.3, Stepper Motor, Coil Temperature Too High. . . . . . 211-SIC-75 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-76 SIC 334160.18 — E-SCV No.1, Stepper Motor, Power Supply Too Low. . . . . . . . .211-SIC-77 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-77 SIC 334161.01 — E-SCV No.1, Stepper Motor, Power Supply Very Low . . . . . . . .211-SIC-79 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-79 SIC 334162.00 — E-SCV No.1, Stepper Motor, Power Supply Too High . . . . . . . .211-SIC-81 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-81 SIC 334163.14 — E-SCV No.1, Stepper Motor, No Connection to Controller . . . . .211-SIC-82 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-82 SIC 334164.14 — E-SCV No.1, Stepper Motor, Coil Temperature Too Low . . . . . .211-SIC-83 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-83 SIC 334165.14 — E-SCV No.1, Stepper Motor, Coil Temperature Too High. . . . . . 211-SIC-84 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-85 SIC 334168.18 — E-SCV No.2, Stepper Motor, Power Supply Too Low. . . . . . . . .211-SIC-86 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-86 SIC 334169.01 — E-SCV No.2, Stepper Motor, Power Supply Very Low . . . . . . . .211-SIC-87 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-88 SIC 334170.00 — E-SCV No.2, Stepper Motor, Power Supply Too High . . . . . . . .211-SIC-89 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-89 SIC 334171.14 — E-SCV No.2, Stepper Motor, No Connection to Controller . . . . .211-SIC-90 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-90 SIC 334172.14 — E-SCV No.2, Stepper Motor, Coil Temperature Too Low . . . . . .211-SIC-91 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-91 SIC 334173.14 — E-SCV No.2, Stepper Motor, Coil Temperature Too High. . . . . . 211-SIC-92 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-93 SIC 334176.18 — E-SCV No.3, Stepper Motor, Power Supply Too Low. . . . . . . . .211-SIC-94 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-94 SIC 334177.01 — E-SCV No.3, Stepper Motor, Power Supply Very Low . . . . . . . .211-SIC-96 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-96

SIC 334178.00 — E-SCV No.3, Stepper Motor, Power Supply Too High . . . . . . . .211-SIC-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-98 SIC 334179.14 — E-SCV No.3, Stepper Motor, No Connection to Controller . . . . .211-SIC-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-SIC-99 SIC 334180.14 — E-SCV No.3, Stepper Motor, Coil Temperature Too Low . . . . . 211-SIC-100 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-100 SIC 334181.14 — E-SCV No.3, Stepper Motor, Coil Temperature Too High. . . . . 211-SIC-101 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-101 SIC 334184.18 — E-SCV No.4, Stepper Motor, Power Supply Too Low. . . . . . . . 211-SIC-102 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-103 SIC 334185.01 — E-SCV No.4, Stepper Motor, Power Supply Very Low . . . . . . . 211-SIC-104 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-105 SIC 334186.00 — E-SCV No.4, Stepper Motor, Power Supply Too High . . . . . . . 211-SIC-106 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-106 SIC 334187.14 — E-SCV No.4, Stepper Motor, No Connection to Controller . . . . 211-SIC-107 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-107 SIC 334188.14 — E-SCV No.4, Stepper Motor, Coil Temperature Too Low . . . . . 211-SIC-108 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-108 SIC 334189.14 — E-SCV No.4, Stepper Motor, Coil Temperature Too High. . . . . 211-SIC-109 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-110 SIC 334201.14 — E-ICV No.1, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-111 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-111 SIC 334202.14 — E-ICV No.2, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-113 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-114 SIC 334203.14 — E-ICV No.3, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-116 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-117 SIC 334204.14 — E-SCV No.1, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-119 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-120 SIC 334205.14 — E-SCV No.2, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-122 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-123 SIC 334206.14 — E-SCV No.3, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-125 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-126 SIC 334207.14 — E-SCV No.4, Stepper Motor Fails to Start . . . . . . . . . . . . . . . . 211-SIC-129 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-129

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SIC 334221.14 — E-ICV No.1, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-131 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-132 SIC 334222.14 — E-ICV No.2, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-133 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-134 SIC 334223.14 — E-ICV No.3, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-135 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-136 SIC 334224.14 — E-SCV No.1, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-137 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-138 SIC 334225.14 — E-SCV No.2, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-139 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-140 SIC 334226.14 — E-SCV No.3, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-141 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-142 SIC 334227.14 — E-SCV No.4, Stepper Motor Fails to Respond to Command from Controller . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-144 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-145 SIC 334240.14 — Controller Connected to Wrong Wiring Harness Connector . . . . . 211-SIC-146 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 211-SIC-147

SSU 000237.31 — Basic Control Unit (BCU) is Not Transmitting Any Data to the SSU Controller . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-9 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-9 SSU 000628.02 — SSU Controller, Internal Fault (EEPROM) . . . . . . . . . . . . . . . . . . 211-SSU-11 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-11 SSU 000630.13 — SSU Controller Not Calibrated . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-12 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-12 SSU 000639.12 — SSU Controller, Internal Fault (CAN BUS). . . . . . . . . . . . 211-SSU-13 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-13 SSU 000639.13 — 29-bit CAN BUS (Tractor BUS), High Error Rate . . . . . . . 211-SSU-14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-14 SSU 000639.19 — 29-bit CAN BUS (Tractor BUS), Very High Error Rate . . . 211-SSU-16 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-16 SSU 001079.03 — Wheel Angle Sensor (WAS), Power Supply Too High. . . . . . . 211-SSU-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-17 SSU 001079.04 — Wheel Angle Sensor (WAS), Power Supply Too Low . . . . . . . 211-SSU-19 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-19 SSU 001504.07 — Seat Switch, Signal Invalid . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-21 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-21 SSU 001504.09 — Seat Switch, Signal Not Received . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-22 SSU 001504.14 — No-one on Operator’s Seat While AutoSteer is Running. . . . . . 211-SSU-24 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-24 SSU 001807.02 — Steering Input Device (SID), Calibration Fault . . . . . . . . . . . . . 211-SSU-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-25 SSU 001807.03 — Steering Input Device SID 1, Voltage Too High . . . . . . . . . . . . 211-SSU-26 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-27 SSU 001807.04 — Steering Input Device SID 1, Voltage Too Low. . . . . . . . . . . . . 211-SSU-29 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-29 SSU 001807.05 — Steering Input Device SID 1, Current Too Low. . . . . . . . . . . . . 211-SSU-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-31 SSU 001807.06 — Steering Input Device SID 1, Current Too High . . . . . . . . . . . . 211-SSU-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-33

Group SSU—SSU Diagnostic Trouble Codes SSU 000084.09 — Tractor Speed Signal Not Recognized . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-1 SSU 000158.03 — SSU Power Supply (Unswitched Power) Too High . . . . . . . . . 211-SSU-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-3 SSU 000158.04 — SSU Power Supply (Unswitched Power) Too Low . . . . . . . . . 211-SSU-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-4 SSU 000162.02 — SSU Controller, Two Transmission Types Identified . . . . . . . . . 211-SSU-5 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-5 SSU 000162.09 — SSU Controller, No Data Received from Transmission Controller (EPC or TCU) . . . . . . . . . . . . . . . . . . . . . 211-SSU-6 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-6 SSU 000177.09 — Hydraulic Oil Temperature Not Recognized . . . . . . . . . . . . . . . . . . . . 211-SSU-7 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-8 TM4726 (01NOV03)

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SSU 001807.10 — The Signals from Steering Input Devices SID 1 and SID 2 are Unequal . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-35 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-35 SSU 001807.14 — Malfunction at Steering Input Device SID 1 . . . . . . . . . . . . . . . . 211-SSU-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-37 SSU 299433.09 — No Signal Received from Reverse Drive Lever (AutoPowr/IVT Transmission) . . . . . . . . . . . . . . . . . . . . 211-SSU-40 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-40 SSU 523425.09 — No Signal Received from Reverse Drive Lever . . . . . . . . . . . 211-SSU-41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-42 SSU 523436.14 — SSU Controller, Internal Fault (Watchdog Timeout). . . . . 211-SSU-43 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-44 SSU 523651.02 — SSU Controller, Internal Fault (Stack Overflow). . . . . . . . 211-SSU-44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-44 SSU 523654.09 — AutoTrac Text Display Not Activated . . . . . . . . . . . . . . . . . . . . . 211-SSU-45 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-45 SSU 523698.09 — No Signal Received from GreenStar . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-46 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-46 SSU 523766.02 — Invalid Entry for System Activation . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-48 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-48 SSU 523767.02 — AutoTrac Resume Switch, Fault in the Engagement Signal . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-49 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-49 SSU 523795.02 — Electro-Hydraulic Steering Valve, Fault during Calibration . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-51 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-51 SSU 523795.10 — Electro-Hydraulic Steering Valve, Control Signal Not in Valid Range . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-52 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-52 SSU 523795.12 — Error Identification at Electro-Hydraulic Steering Valve . . . . . . 211-SSU-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-54 SSU 523795.13 — Electro-Hydraulic Steering Valve, Calibration Error . . . . . . 211-SSU-56 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-56 SSU 523810.01 — Abrupt Change in the SSU System Voltage (ELX) . . . . . . . . . . 211-SSU-57 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-57 SSU 523821.02 — SSU Controller, Incorrect Input Value (Tractor Serial Number) . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-58

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-58 SSU 523824.03 — Steering Input Device SID 2, Voltage Too High . . . . . . . . . . . . 211-SSU-59 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-59 SSU 523824.04 — Steering Input Device SID 2, Voltage Too Low. . . . . . . . . . . . . 211-SSU-61 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-61 SSU 523824.05 — Steering Input Device SID 2, Current Too Low. . . . . . . . . . . . . 211-SSU-63 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-63 SSU 523824.06 — Steering Input Device SID 2, Current Too High . . . . . . . . . . . . 211-SSU-65 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-65 SSU 523824.10 — The Signals from Steering Input Devices SID 2 and SID 1 are Unequal . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-67 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-67 SSU 523824.14 — Malfunction at Steering Input Device SID 2 . . . . . . . . . . . . . . . . 211-SSU-69 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-69 SSU 523826.00 — Signal from the Wheel Angle Sensor (WAS) on Channel 1 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-72 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-72 SSU 523826.01 — Signal from the Wheel Angle Sensor (WAS) on Channel 1 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-74 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-74 SSU 523826.02 — Wheel Angle Sensor (WAS), Fault During Calibration . . . . . . . 211-SSU-76 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-76 SSU 523826.07 — SSU Controller Cannot Detect any Movement at Wheel Angle Sensor (WAS) . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-78 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-79 SSU 523826.10 — Signal from Wheel Angle Sensor (WAS) Not Recognized by Steering Identification Device (SID) . . . . 211-SSU-81 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-81 SSU 523826.14 — Channel 1 Signal from the Wheel Angle Sensor (WAS) Incorrect in Relation to Channel 2 Signal . . . . . . . . . 211-SSU-84 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-85 SSU 524003.00 — Signal from the Wheel Angle Sensor (WAS) on Channel 2 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-87 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-87 SSU 524003.01 — Signal from the Wheel Angle Sensor (WAS) on Channel 2 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-89 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-SSU-89

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Group TCU—TCU Diagnostic Trouble Codes TCU 304019.05 — Fault at Clutch Pedal Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-1 TCU 304020.02 — Faulty Transmission Enable Signal . . . . . . . . . . . . . . . . . . . . . 211-TCU-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-4 TCU 304024.04 — Transmission Oil Temperature Sender, Short to Ground. . . 211-TCU-7 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-7 TCU 304032.03 — Clutch Pedal Switch, Shorted Circuit. . . . . . . . . . . . . . . . . . . . . 211-TCU-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-9 TCU 304033.03 — Transmission Enable Signal, Shorted Circuit . . . . . . . . . . . . . . 211-TCU-10 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-11 TCU 304040.03 — Transmission Oil Temperature Sender, Short or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-12 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-13 TCU 304048.04 — Transmission Input Speed Sender, Grounded Circuit . . . . . . 211-TCU-14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-15 TCU 304049.04 — Transmission Output Speed Sender, Grounded Circuit at Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-16 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-17 TCU 304050.04 — Hydrostatic Speed Sender, Grounded Circuit at Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-19 TCU 304051.04 — Transmission Output Speed Sender, Grounded Circuit at Channel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-21 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-21 TCU 304052.04 — Hydrostatic Speed Sender, Grounded Circuit at Channel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-23 TCU 304056.03 — Transmission Input Speed Sender, Shorted or Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-25 TCU 304057.03 — Transmission Output Speed Sender, Shorted or Open Circuit at Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-26 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-27 TCU 304058.03 — Hydrostatic Speed Sender, Shorted or Open Circuit at Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-28 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-29

TCU 304059.03 — Transmission Output Speed Sender, Shorted or Open Circuit at Channel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-31 TCU 304060.03 — Hydrostatic Speed Sender, Shorted or Open Circuit at Channel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-33 TCU 304064.02 — Implausible Drop in Speed at Transmission Input Speed Signal . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-36 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-36 TCU 304069.02 — Implausible Drop in Speed at the PLC’s Transmission Output Speed Signal . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-38 TCU 304070.10 — Transmission Output Speed Sender of PLC is Defective . . . . 211-TCU-39 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-40 TCU 304072.11 — Transmission Input Speed and Engine Speed Do Not Match . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-41 TCU 304073.08 — Transmission Output Speed Sender, Speed in Channel 1 Lower than in Channel 2 . . . . . . . . . . . . 211-TCU-42 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-43 TCU 304074.08 — Hydrostatic Speed Sender, Speed in Channel 1 Lower than in Channel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-44 TCU 304075.08 — Transmission Output Speed Sender, Speed in Channel 2 Lower than in Channel 1 . . . . . . . . . . . . 211-TCU-45 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-45 TCU 304076.08 — Hydrostatic Speed Sender, Speed in Channel 2 Lower than in Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-46 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-47 TCU 304077.07 — Transmission Input Speed, Hydrostatic Speed and Transmission Output Speed do not Match . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-48 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-49 TCU 304079.07 — Amperage at Proportional Solenoids of Hydrostatic Unit does not Match the Registered Speed . . . . . . . . . 211-TCU-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-55 TCU 304080.02 — Failure in Warning Light Circuit . . . . . . . . . . . . . . . . . . . . . . 211-TCU-61 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-61

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TCU 304081.05 — C1 Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-TCU-62 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-62 TCU 304082.05 — C2 Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-TCU-63 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-63 TCU 304083.05 — C3 Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-TCU-64 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-64 TCU 304084.05 — C4 Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . . . . . . 211-TCU-65 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-65 TCU 304085.05 — BG Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-66 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-66 TCU 304086.05 — Park Lock Solenoid Valve, Open Circuit . . . . . . . . . . . . . . . . 211-TCU-67 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-67 TCU 304088.05 — Proportional Solenoid Y1 (Hydrostatic Control Valve), Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-68 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-69 TCU 304089.05 — Proportional Solenoid Y2 (Hydrostatic Control Valve), Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-70 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-70 TCU 304090.05 — Proportional Valve for Forward Clutch (CF), Open Circuit. . . . . 211-TCU-71 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-72 TCU 304091.05 — Proportional Valve for Reverse Clutch (CR), Open Circuit . . . . 211-TCU-73 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-74 TCU 304097.04 — C1 Solenoid Valve, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-TCU-75 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-76 TCU 304098.04 — C2 Solenoid Valve, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-TCU-76 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-77 TCU 304099.04 — C3 Solenoid Valve, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-TCU-77 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-78 TCU 304100.04 — C4 Solenoid Valve, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-TCU-78 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-79 TCU 304101.04 — BG Solenoid Valve, Grounded Circuit . . . . . . . . . . . . . . . . . . 211-TCU-79 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-80 TCU 304102.04 — Park Lock Solenoid Valve, Grounded Circuit. . . . . . . . . . . . . 211-TCU-80 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-81 TCU 304104.04 — Proportional Solenoid Y1 (Hydrostatic Control Valve), Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-82

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-82 TCU 304105.04 — Proportional Solenoid Y2 (Hydrostatic Control Valve), Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-83 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-84 TCU 304106.04 — Proportional Valve for Forward Clutch (CF), Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-85 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-85 TCU 304107.04 — Proportional Valve for Reverse Clutch (CR), Grounded Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-86 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-87 TCU 304113.03 — C1 Solenoid Valve, Shorted Circuit. . . . . . . . . . . . . . . . . . . . 211-TCU-88 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-89 TCU 304114.03 — C2 Solenoid Valve, Shorted Circuit. . . . . . . . . . . . . . . . . . . . 211-TCU-89 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-90 TCU 304115.03 — C3 Solenoid Valve, Shorted Circuit. . . . . . . . . . . . . . . . . . . . 211-TCU-90 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-91 TCU 304116.03 — C4 Solenoid Valve, Shorted Circuit. . . . . . . . . . . . . . . . . . . . 211-TCU-91 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-92 TCU 304117.03 — BG Solenoid Valve, Shorted Circuit. . . . . . . . . . . . . . . . . . . . 211-TCU-92 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-93 TCU 304118.03 — Park Lock Solenoid Valve, Shorted Circuit . . . . . . . . . . . . . . 211-TCU-93 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-94 TCU 304120.03 — Proportional Solenoid Y1 (Hydrostatic Control Valve), Shorted Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-95 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-95 TCU 304121.03 — Proportional Solenoid Y2 (Hydrostatic Control Valve), Shorted Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-96 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-97 TCU 304122.03 — Proportional Valve for Forward Clutch (CF), Shorted Circuit . . . 211-TCU-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-98 TCU 304123.03 — Proportional Valve for Reverse Clutch (CR), Shorted Circuit . . 211-TCU-99 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-100 TCU 304128.00 — System Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-101 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-101 TCU 304129.01 — System Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-102 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-103

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TCU 304132.02 — Fault in the Internal Transmission Power Supply (VPS) . . . 211-TCU-104 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-105 TCU 304136.02 — Control Unit, Incorrect Software Version . . . . . . . . . . . . . . . . . 211-TCU-106 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-106 TCU 304137.02 — Control Unit, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-107 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-107 TCU 304138.02 — Control Unit, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-107 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-107 TCU 304139.11 — Control Unit Connected to Wrong Wiring Harness Connector . . . . . . . . . . . . . . . . . . . . . . 211-TCU-108 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-108 TCU 304140.12 — Control Unit, Wrong Input Value . . . . . . . . . . . . . . . . . . . . . 211-TCU-109 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-110 TCU 304146.11 — Transmission Output Speed does Not Match Transmission Output Speed at PLC . . . . . . . . . . . . . 211-TCU-110 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-111 TCU 304147.11 — Park Lock Solenoid Valve of PLC is Defective . . . . . . . . . . 211-TCU-113 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-114 TCU 304149.12 — Park Lock Engaged during Power Zero . . . . . . . . . . . . . . . . 211-TCU-114 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-115 TCU 304150.00 — Power Zero Signal is Transmitted by the UIC for Too Long . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-117 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-118 TCU 304151.11 — Transmission Output Speed does Not Match Transmission Output Speed at PLC (CAN BUS Value) . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-119 TCU 304152.00 — Transmission Oil Temperature Very High . . . . . . . . . . . . 211-TCU-120 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-120 TCU 304153.13 — Control Unit Not Calibrated . . . . . . . . . . . . . . . . . . . . . . 211-TCU-123 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-124 TCU 304154.00 — INFORMATION FOR OPERATOR: Transmission Input Speed Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-125 TCU 304155.00 — INFORMATION FOR OPERATOR: Transmission Output Speed Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-125 TCU 304156.01 — INFORMATION FOR THE OPERATOR: Transmission Warm-up Routine is Active . . . . . . . . . . . . . . . . . 211-TCU-126

TCU 304157.01 — INFORMATION FOR THE OPERATOR: Transmission Warm-up Routine is Active . . . . . . . . . . . . . . . . . 211-TCU-126 TCU 304160.09 — Engine Control Unit has Stopped Transmitting Data . . . . . . 211-TCU-127 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-128 TCU 304161.09 — User Interface Controller has Stopped Transmitting Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-132 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-132 TCU 304166.09 — Park Lock Controller has Stopped Transmitting Data . . . . . . 211-TCU-135 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-136 TCU 304176.00 — Dirty Transmission Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-139 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-140 TCU 304177.01 — Transmission Oil Pressure Too Low . . . . . . . . . . . . . . . . 211-TCU-142 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-143 TCU 304178.07 — Filter By-pass Valve (Cold-weather Starting) is Closed by Mistake . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-145 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-146 TCU 304179.07 — Filter By-pass Valve (Cold-weather Starting) is Opened by Mistake . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-148 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-148 TCU 304196.19 — Data Transmitted by Engine Control Unit is Incomplete (Engine Speed). . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-150 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-150 TCU 304200.19 — Data Transmitted by User Interface Controller is Incomplete (Desired Acceleration) . . . . . . . . . . . . . . . . . . . . 211-TCU-151 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-151 TCU 304202.19 — Data Transmitted by User Interface Controller is Incomplete (Clutch Torque) . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-151 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-152 TCU 304204.19 — Data Transmitted by User Interface Controller is Incomplete (Desired Transmission Ratio) . . . . . . . . . . . . . . . 211-TCU-152 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-152 TCU 304206.19 — Data Transmitted by User Interface Controller is Incomplete (Park Lock Condition) . . . . . . . . . . . . . . . . . . . . . . 211-TCU-153 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-153 TCU 304208.19 — Data Transmitted by User Interface Controller is Incomplete (Direction of Travel) . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-154 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-154

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TCU 304212.19 — Data Transmitted by User Interface Controller is Incomplete (Clutch Pedal Sensor) . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-154 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-155 TCU 304216.19 — Data Transmitted by User Interface Controller is Incomplete (Park Lock Activation) . . . . . . . . . . . . . . . . . . . . . . 211-TCU-155 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-155 TCU 304228.19 — Data Transmitted by Park Lock Controller is Incomplete (Transmission Output Speed) . . . . . . . 211-TCU-156 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-156 TCU 304230.19 — Data Transmitted by Park Lock Controller is Incomplete (Park Lock Pressure Sender) . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-157 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-157 TCU 304232.19 — Data Transmitted by Park Lock Controller is Incomplete (Transmission Output Speed) . . . . . . . 211-TCU-157 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-158 TCU 304234.19 — Data Transmitted by Park Lock Controller is Incomplete (State of Transmission Output Speed Sender) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-158 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-158 TCU 304236.19 — Data Transmitted by Park Lock Controller is Incomplete (Park Lock Solenoid Valve Y15-2). . . . . . . . . 211-TCU-159 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-159 TCU 304240.19 — Data Transmitted by User Interface Controller is Incomplete (Status of "Come-Home" Mode). . . . . . . . . . . . . . 211-TCU-160 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-160 TCU 304241.19 — Data Transmitted by User Interface Controller is Incomplete (Desired Acceleration during a Change of Direction) . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-160 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-161 TCU 304243.19 — Data Transmitted by User Interface Controller is Incomplete (Transmission Shift Monitor) . . . . . . . . 211-TCU-161 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-161 TCU 304244.19 — Data Transmitted by User Interface Controller is Incomplete (Change of Direction of Travel) . . . . . . 211-TCU-162 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 211-TCU-162

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-2 TEC 000628.12 — TEC Controller is Connected to the Wrong Harness Connector . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-3 TEC 000639.12 — Tractor CAN BUS Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-4 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-4 TEC 298751.31 — Fault in the Power Supply to Components at the Implement BUS or Fault in System Voltage (ELX). . . . . . . 211-TEC-5 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-5 TEC 298752.31 — Fault in the Power Supply to the Components at the Implement BUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-8 TEC 298753.31 — Fault in the Power Supply to the Implement BUS . . . . . . . . 211-TEC-11 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-11 TEC 298754.31 — Fault in the Power Supply to the Implement BUS or Fault in System Voltage (ELX) . . . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-14 TEC 298786.04 — TEC Controller System Voltage (Unswitched Power) is Missing . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-16 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-16 TEC 298803.04 — TEC Controller System Voltage (ELX) is Missing . . . . . . . . . . . . 211-TEC-17 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-17 TEC 298804.31 — TEC Controller, Internal Fault (Shut-Off Process) . . . . . . 211-TEC-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-18 TEC 298805.31 — TEC Controller, Internal Fault (EEPROM) . . . . . . . . . . . . . . . . . . 211-TEC-19 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-19

Group TEC—TEC Diagnostic Trouble Codes TEC 000158.00 — TEC Power Supply (Unswitched Power) Too High . . . . . . . . . 211-TEC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 211-TEC-1 TEC 000158.01 — TEC Power Supply (Unswitched Power) Too Low . . . . . . . . . 211-TEC-2 TM4726 (01NOV03)

Group UIC—UIC Diagnostic Trouble Codes UIC 305005.02 — Controller, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-1 UIC 305006.02 — Controller, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-1 UIC 305007.12 — Set-Up Error in BCU . . . .211-UIC-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-2 UIC 305008.31 — INFORMATION FOR OPERATOR: Anti-jack-knife Control Activated . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-3 UIC 305009.04 — Defective Solenoid Valve in Anti-jack-knife Control . . . . . . . . .211-UIC-4

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Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-4 UIC 305010.07 — Fault at Brake Pedal Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-5 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-6 UIC 305011.11 — Front-Wheel Drive Speed and Transmission Output Speed Do Not Match . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-8 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-9 UIC 305012.00 — INFORMATION FOR OPERATOR: Engine Speed Too High . . .211-UIC-10 UIC 305015.11 — Park Lock Does Not Engage . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-11 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-11 UIC 305016.11 — UIC Detects Travel Speed even although the Park Lock is Engaged . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-15 UIC 305021.04 — Cruise Control Potentiometer, Signal Voltage Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-18 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-18 UIC 305022.03 — Cruise Control Potentiometer, Signal Voltage Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-19 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-20 UIC 305027.04 — AutoPowr Selector, Signal Voltage Too Low. . . . . . . . . . . . . .211-UIC-21 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-21 UIC 305028.03 — AutoPowr Selector, Signal Voltage Too High . . . . . . . . . . . . .211-UIC-22 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-23 UIC 305029.02 — Operator Presence (Seat) Switch, Faulty Signal . . . . . . . . . . .211-UIC-24 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-24 UIC 305030.12 — Accelerator Pedal Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-25 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-26 UIC 305032.04 — Accelerator Pedal Potentiometer, Voltage at Channel 1 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-27 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-28 UIC 305033.03 — Accelerator Pedal Potentiometer, Voltage at Channel 1 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-29 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-30 UIC 305035.12 — Hand Throttle Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-32

UIC 305037.04 — Hand Throttle Potentiometer, Voltage at Channel 1 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-34 UIC 305038.03 — Hand Throttle Potentiometer, Voltage at Channel 1 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-35 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-36 UIC 305039.11 — Fault at Clutch Pedal Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-38 UIC 305044.04 — Left Brake Signal Potentiometer, Voltage Too Low . . . . . . .211-UIC-40 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-40 UIC 305045.03 — Left Brake Signal Potentiometer, Voltage Too High . . . . . . .211-UIC-41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-42 UIC 305046.04 — Right Brake Pedal Potentiometer, Voltage Too Low . . . . . . .211-UIC-43 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-44 UIC 305047.03 — Right Brake Pedal Potentiometer, Voltage Too High . . . . . . .211-UIC-45 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-46 UIC 305050.12 — Speed Wheel, Output Signals do Not Match . . . . . . . . . . . . . . .211-UIC-47 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-48 UIC 305051.09 — Engine Control Unit has Stopped Transmitting Data (Engine Temperature) . . . . . . . . . . . . . . . . . . . . . .211-UIC-49 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-50 UIC 305052.09 — Engine Control Unit has Stopped Transmitting Data (Engine Load/Maximum Injection Rate). . . . . . . . .211-UIC-54 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-55 UIC 305053.09 — Engine Control Unit has Stopped Transmitting Data (Engine Speed). . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-59 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-60 UIC 305054.09 — Transmission Control Unit has Stopped Transmitting Data (Transmission Oil Temperature). . . . . . . .211-UIC-64 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-64 UIC 305055.09 — Engine Control Unit has Stopped Transmitting Data (Engine Load/Current Injection Rate) . . . . . . . . . .211-UIC-67 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-68 UIC 305056.09 — Engine Control Unit has Stopped Transmitting Data (Engine Speed). . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-72 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-73

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UIC 305057.01 — INFORMATION FOR OPERATOR: Transmission Warm-up Routine is Active . . . . . . . . . . . . . . . . . . .211-UIC-77 UIC 305058.01 — INFORMATION FOR OPERATOR: Transmission Warm-up Routine Cannot be Activated, Park Lock should be Engaged . . . . . . . . . . . . . . . . .211-UIC-77 UIC 305059.09 — Basic Control Unit has Stopped Transmitting Data (Status of Front-Wheel Drive). . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-77 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-78 UIC 305060.09 — Engine Control Unit has Stopped Transmitting Data (Torque Characteristics) . . . . . . . . . . . . . . . . . . . .211-UIC-81 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-82 UIC 305062.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Release the Clutch Pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-86 UIC 305063.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Move Reverse Drive Lever To Neutral or Park Position . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-86 UIC 305064.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Depress the Clutch Pedal Fully. . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-86 UIC 305065.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Select a Direction of Travel . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-86 UIC 305066.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Press Clutch Pedal to Stop. . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-87 UIC 305067.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Restart. . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-87 UIC 305070.19 — Transmission Control Unit is Transmitting Incomplete Data (Transmission Output Speed) . . . . . . . . .211-UIC-87 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-88 UIC 305075.04 — Potentiometer on the left brake pedal, set-up error . . . . . . . . . .211-UIC-89 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-89 UIC 305076.04 — Right Brake Pedal Potentiometer, Adjustment Error . . . . . . .211-UIC-90 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-91 UIC 305129.12 — Potentiometer of Speed Control Lever, Voltages at Channel 1 and Channel 2 not in the Correct Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-92 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-93

UIC 305131.04 — Speed Control Lever’s Potentiometer, Voltage at Channel 1 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-94 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-95 UIC 305132.03 — Speed Control Lever’s Potentiometer, Voltage at Channel 1 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-96 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-97 UIC 305135.02 — Neutral Switch and a Park Lock Switch are Actuated Simultaneously for Too Long a Period . . .211-UIC-98 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-99 UIC 305136.02 — Reverse Drive Lever, Faulty Signals . . . . . . . . . . . . . . . . . . . . .211-UIC-99 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-100 UIC 305137.02 — Power-Zero Switch, Move Switch and either the Forward or Reverse Switch are Activated Simultaneously for Too Long a Period . . . . . . . . . . . . . . . . .211-UIC-100 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-101 UIC 305138.11 — Park Lock cannot be Disengaged . . . . . . . . . . . . . . . . . . . . . .211-UIC-101 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-102 UIC 305139.02 — INFORMATION FOR OPERATOR: Direction of Travel is Preselected without there being a Valid Signal indicating Operator Presence . . .211-UIC-105 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-105 UIC 305140.02 — INFORMATION FOR OPERATOR: Power Zero is Preselected without there being a Valid Signal indicating Operator Presence. . . . . . . . .211-UIC-106 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-107 UIC 305141.12 — Clutch Pedal Potentiometer, Voltages at Channel 1 and Channel 2 not in the Correct Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-108 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-108 UIC 305142.04 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too Low . . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-109 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-110 UIC 305143.03 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too High. . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-111 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-112 UIC 305144.02 — Switches on Reverse Drive Lever are Actuated Simultaneously . . . . . . . . . . . . . . . . . . .211-UIC-113 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-114

TM4726 (01NOV03)

211-22

Continued on next page

6020 to 6920S tractors 022204

PN=22

Contents

Page

Page

UIC 305145.02 — No Switch Signal from Reverse Drive Lever . . . . . . . . . . . . . . .211-UIC-114 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-115 UIC 305146.02 — Move Switch or Power Zero Switch has been Opened by Mistake . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-115 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-116 UIC 305147.02 — Forward and Reverse Switches Actuated At Same Time . . . . .211-UIC-116 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-117 UIC 305148.02 — Forward Switch or Reverse Switch has been Opened by Mistake . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-117 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-118 UIC 305149.02 — Fault at Neutral Switch or Power Zero Switch . . . . . . . . . . . . . .211-UIC-118 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-119 UIC 305150.02 — Fault at Park Lock Switch . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-119 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-120 UIC 305151.02 — Fault at Neutral Switch . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-120 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-121 UIC 305152.02 — Fault at Move Switch . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-121 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-122 UIC 305153.02 — Fault at Reverse Switch . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-122 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-123 UIC 305154.02 — Fault at Forward Switch . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-123 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-124 UIC 305155.02 — Forward or Reverse Switch is Actuated Simultaneously with the Park Lock Switch . . . . . . . . . . . . . . .211-UIC-124 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-125 UIC 305157.02 — Fault in Set Speed Range 2. . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-125 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-126 UIC 305158.02 — Fault in Set Speed Range 1. . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-127 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-128 UIC 305160.02 — Faulty Power Supply to Reverse Drive Lever . . . . . . . . . . . . . . .211-UIC-129 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-130 UIC 305170.19 — Transmission Control Unit and Park Lock Controller are Transmitting Incomplete Data (Transmission Output Speed). . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-132 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-132 UIC 305179.02 — 5-Volt Power Supply is Faulty . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-133 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-134

UIC 305180.04 — 5-Volt Power Supply Too Low . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-135 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-136 UIC 305184.01 — INFORMATION FOR OPERATOR: Engine Has Stopped Reverse Drive Lever Still in Position for a Direction of Travel . . . . . . . . . . . . . . .211-UIC-137 UIC 305185.01 — Fault at Transmission . . . . . . . . . . . . . . . . . . . . .211-UIC-137 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-138 UIC 305189.02 — Fault in Circuit of Transmission Enable Relay . . . . . . . . . .211-UIC-139 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-139 UIC 305190.09 — Transmission Control Unit has Stopped Transmitting Data . . .211-UIC-140 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-141 UIC 305207.02 — INFORMATION FOR OPERATOR: Tractor Start-up with Reverse Drive Lever Not in Neutral or Corner Park. . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-144 UIC 305208.02 — Internal Transmission Power Supply (VPS), Shorted Circuit. . .211-UIC-145 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-145 UIC 305209.02 — INFORMATION FOR OPERATOR: Reverse Drive Lever is in the Position for Forward or Reverse Travel During Start-up Procedure . . . . . . . . . . .211-UIC-146 UIC 305230.02 — Controller, Internal Fault . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-146 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-146 UIC 305240.11 — Controller Connected to Wrong Wiring Harness Connector . . . . .211-UIC-147 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-147 UIC 305250.12 — Controller, Wrong Input Value . . . . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-148 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . .211-UIC-148

TM4726 (01NOV03)

211-23

6020 to 6920S tractors 022204

PN=23

211

Contents

211

TM4726 (01NOV03)

211-24

6020 to 6920S tractors 022204

PN=24

Group ATC

ATC Diagnostic Trouble Codes ATC 000170.03 — Sending Unit for Inside Air Temperature, Shorted or Open Circuit

Diagnostic trouble code ATC 000170.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the sending unit (B127; for inside

air temperature). This indicates that circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CE5 –19–28AUG03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. Instead, inside temperature is recorded via the sending unit for actual outlet air temperature. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-1

6020 to 6920S tractors 022204

PN=23

211 ATC 1

ATC Diagnostic Trouble Codes 2 Check the sending unit (B127) for inside air temperature

211 ATC 2

• • • •

Ignition ON. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the right (Hi). Access address ATC008 or ATC040, or template ATC900 - Sending unit (B127) for inside air temperature. • Make sure that the information displayed at addresses ATC008 and ATC040 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC008 - Sending unit (B127) for inside air temperature, shown in °C— Specification Sending unit (B127) for inside air temperature:—Temperature .............................................................................. 0—63.5°C Fault in circuit or sending unit ...................................................................................... Err ATC040 - Sending unit (B127) for inside air temperature, signal voltage— Specification Sending unit (B127) for inside air temperature:—Signal voltage .................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err • Start the engine and run it at 1500 rpm. • Once again access address ATC008 or template ATC900 - Sending unit (B127) for inside air temperature. • Check whether the temperature shown in address ATC008 is slowly rising as cab temperature rises.

– – –1/1

3 Initial component test

At the l.h. recirculated air filter, perform a visual inspection of sending unit (B127; inside air temperature) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

LX1025927 –UN–30SEP03

B127—Sending unit for inside air temperature ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-2

6020 to 6920S tractors 022204

PN=24

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the inside air temperature sending unit, see summary of wiring layout in Circuit/Harness Test for Sending Unit (B127; Inside Air Temperature) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

– – –1/1

ATC 000170.04 — Sending Unit for Inside Air Temperature, Short to Ground

Diagnostic trouble code ATC 000170.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the sending unit (B127; for

inside air temperature). This indicates a short to ground in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CE6 –19–01SEP03–1/1

211-ATC-3

6020 to 6920S tractors 022204

PN=25

211 ATC 3

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. Instead, inside temperature is recorded via the sending unit for actual outlet air temperature. 211 ATC 4

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-4

6020 to 6920S tractors 022204

PN=26

ATC Diagnostic Trouble Codes 2 Check the sending unit (B127) for inside air temperature

• • • •

Ignition ON. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the right (Hi). Access address ATC008 or ATC040, or template ATC900 - Sending unit (B127) for inside air temperature. • Make sure that the information displayed at addresses ATC008 and ATC040 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

211 ATC 5

ATC008 - Sending unit (B127) for inside air temperature, shown in °C— Specification Sending unit (B127) for inside air temperature:—Temperature ............................................................................ 0—63.5 °C Fault in circuit or sending unit ...................................................................................... Err ATC040 - Sending unit (B127) for inside air temperature, signal voltage— Specification Sending unit (B127) for inside air temperature:—Signal voltage .................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err • Start the engine and run it at 1500 rpm. • Once again access address ATC008 or template ATC900 - Sending unit (B127) for inside air temperature. • Check whether the temperature shown in address ATC008 is slowly rising as cab temperature rises.

– – –1/1

3 Initial component test

At the l.h. recirculated air filter, perform a visual inspection of sending unit (B127; inside air temperature) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

LX1025927 –UN–30SEP03

B127—Sending unit for inside air temperature ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

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TM4726 (01NOV03)

211-ATC-5

6020 to 6920S tractors 022204

PN=27

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

211 ATC 6

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the inside air temperature sending unit, see summary of wiring layout in Circuit/Harness Test for Sending Unit (B127; Inside Air Temperature) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Sending Unit (B127; Inside Air Temperature), see 245-ATC.

– – –1/1

ATC 000171.03 — Sending Units for Ambient Air Temperature, Shorted or Open Circuit

Diagnostic trouble code ATC 000171.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the front (B125) or rear (B126) sending units for ambient air temperature. This

indicates that the relevant circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CE7 –19–01SEP03–1/1

211-ATC-6

6020 to 6920S tractors 022204

PN=28

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. If the front ambient temperature sending unit (B125) fails, ambient temperature is recorded only via the rear sending unit (B126), and the other way round.

211 ATC 7

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-7

6020 to 6920S tractors 022204

PN=29

ATC Diagnostic Trouble Codes 2 Checking the ambient temperature sending units (B125 and B126)

211 ATC 8

• Ignition ON. • Check the sending unit (B125) for ambient temperature at the front: – Access address ATC013 or ATC042, or template ATC901 - Sending unit for ambient temperature (front). – Make sure that the information displayed at addresses ATC 013 and ATC 042 complies with the following: ATC013 - Sending unit (B125) for ambient temperature (front), shown in °C— Specification Display:—Temperature ................................................................................. -40.0—65 °C Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 026 ................................................................................................................................. nA

OK: GO TO 7. NOT OK: • Display for ambient temperature sending unit (front) not OK: GO TO 3. • Display for ambient temperature sending unit (rear) not OK: GO TO 5.

ATC042 - Sending unit (B125) for ambient temperature (front), signal voltage— Specification Display:—Signal voltage ............................................................................ 0.0— 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 026 ................................................................................................................................. nA

• Check the sending unit (B126) for ambient temperature at the rear: – Access address ATC014 or ATC043, or template ATC902 - Sending unit for ambient temperature (rear). – Make sure that the information displayed at addresses ATC 014 and ATC 043 complies with the following: ATC014 - Sending unit (B126) for ambient temperature (rear), shown in °C— Specification Display:—Temperature ................................................................................. -40.0—65 °C Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 027 ................................................................................................................................. nA ATC043 - Sending unit (B126) for ambient temperature (rear), signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 027 ................................................................................................................................. nA

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TM4726 (01NOV03)

211-ATC-8

6020 to 6920S tractors 022204

PN=30

ATC Diagnostic Trouble Codes 3 Initial component test, sending unit (B125) for ambient temperature (front)

At the air cleaner, perform a visual inspection of sending unit (B125; ambient temperature at the front) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies or contacts as required and do an Operational Check for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC.

LX1025928 –UN–30SEP03

B125—Sending unit for ambient temperature at the front ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit, sending unit (B125) for ambient temperature (front)

Do a Circuit/Harness Test for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC.

OK: GO TO 7. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-9

6020 to 6920S tractors 022204

PN=31

211 ATC 9

ATC Diagnostic Trouble Codes 5 Initial component test, sending unit (B126) for ambient temperature (rear)

At the rear right of the cab roof, perform a visual inspection of sending unit (B126; ambient temperature at the rear) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 6. NOT OK: Recondition sub-assemblies or contacts as required and do an Operational Check for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC.

211 ATC 10

LX1025929 –UN–30SEP03

B126—Sending unit for ambient temperature at the rear ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

6 Checking the circuit, sending unit (B126) for ambient temperature (rear)

Do a Circuit/Harness Test for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC.

OK: GO TO 7. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC.

– – –1/1

7 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Check the connections in the circuit for the ambient temperature sending unit, see summary of wiring layout in: – Circuit/Harness Test for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC. – Circuit/Harness Test for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-ATC-10

6020 to 6920S tractors 022204

PN=32

ATC Diagnostic Trouble Codes

ATC 000171.04 — Sending Units for Ambient Temperature, Short to Ground

Diagnostic trouble code ATC 000171.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the front (B125) or rear

(B126) sending units for ambient air temperature. This indicates a short to ground in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CE8 –19–01SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. If the front ambient temperature sending unit (B125) fails, ambient temperature is recorded only via the rear sending unit (B126), and the other way round.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-11

6020 to 6920S tractors 022204

PN=33

211 ATC 11

ATC Diagnostic Trouble Codes 2 Checking the ambient temperature sending units (B125 and B126)

211 ATC 12

• Ignition ON. • Check the sending unit (B125) for ambient temperature at the front: – Access address ATC013 or ATC042, or template ATC901 - Sending unit for ambient temperature (front). – Make sure that the information displayed at addresses ATC 013 and ATC 042 complies with the following: ATC013 - Sending unit (B125) for ambient temperature (front), shown in °C— Specification Display:—Temperature ................................................................................. -40.0—65 °C Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 026 ................................................................................................................................. nA

OK: GO TO 7. NOT OK: • Display for ambient temperature sending unit (front) not OK: GO TO 3. • Display for ambient temperature sending unit (rear) not OK: GO TO 5.

ATC042 - Sending unit (B125) for ambient temperature (front), signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 026 ................................................................................................................................. nA

• Check the sending unit (B126) for ambient temperature at the rear: – Access address ATC014 or ATC043, or template ATC902 - Sending unit for ambient temperature (rear). – Make sure that the information displayed at addresses ATC 014 and ATC 043 complies with the following: ATC014 - Sending unit (B126) for ambient temperature (rear), shown in °C— Specification Display:—Temperature ................................................................................. -40.0—65 °C Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 027 ................................................................................................................................. nA ATC043 - Sending unit (B126) for ambient temperature (rear), signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 027 ................................................................................................................................. nA

– – –1/1

TM4726 (01NOV03)

211-ATC-12

6020 to 6920S tractors 022204

PN=34

ATC Diagnostic Trouble Codes 3 Initial component test, sending unit (B125) for ambient temperature (front)

At the air cleaner, perform a visual inspection of sending unit (B125; ambient temperature at the front) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies or contacts as required and do an Operational Check for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC.

LX1025928 –UN–30SEP03

B125—Sending unit for ambient temperature at the front ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit, sending unit (B125) for ambient temperature (front)

Do a Circuit/Harness Test for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC.

OK: GO TO 7. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-13

6020 to 6920S tractors 022204

PN=35

211 ATC 13

ATC Diagnostic Trouble Codes 5 Initial component test, sending unit (B126) for ambient temperature (rear)

At the rear right of the cab roof, perform a visual inspection of sending unit (B126; ambient temperature at the rear) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 6. NOT OK: Recondition sub-assemblies or contacts as required and do an Operational Check for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC.

211 ATC 14

LX1025929 –UN–30SEP03

B126—Sending unit for ambient temperature at the rear ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

6 Checking the circuit, sending unit (B126) for ambient temperature (rear)

Do a Circuit/Harness Test for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC.

OK: GO TO 7. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC.

– – –1/1

7 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Check the connections in the circuit for the ambient temperature sending unit, see summary of wiring layout in: – Circuit/Harness Test for Sending Unit (B125; Ambient Temperature at the Front), see 245-ATC. – Circuit/Harness Test for Sending Unit (B126; Ambient Temperature at the Rear), see 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test (see 245-ATC).

– – –1/1

TM4726 (01NOV03)

211-ATC-14

6020 to 6920S tractors 022204

PN=36

ATC Diagnostic Trouble Codes

ATC 000628.12 — Controller, Internal Fault

Diagnostic trouble code ATC 000628.12 is generated when an electronic malfunction is registered in the

controller. Alarm level: Information

211 ATC 15

LX12234,0000CEB –19–01SEP03–1/1

Diagnostics Reaction of controller: ClimaTrak functions at a reduced level or not at all. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: Diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF: Replace the ClimaTrak controller (ATC).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-15

6020 to 6920S tractors 022204

PN=37

ATC Diagnostic Trouble Codes

ATC 000630.02 — Controller, Internal Fault

211 ATC 16

Diagnostic trouble code ATC 000630.02 is generated when the ClimaTrak controller registers an EEPROM

fault. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CEA –19–01SEP03–1/1

Diagnostics Reaction of controller: ClimaTrak functions at a reduced level or not at all. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: Diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF: Replace the ClimaTrak controller (ATC).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-16

6020 to 6920S tractors 022204

PN=38

ATC Diagnostic Trouble Codes

ATC 000639.14 — 29-bit CAN BUS, High Error Rate

Diagnostic trouble code ATC 000639.14 is generated when the ClimaTrak controller registers a high rate of errors in the incoming CAN BUS reports. This

indicates a problem in the 29-bit CAN BUS. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

211 ATC 17

LX12234,0000CEC –19–02SEP03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: The diagnostic trouble code is active and additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Check the 29-bit CAN BUS

Do the 29-bit CAN BUS - Check, (Section 213, Group 40).

OK: GO TO 3. NOT OK: Recondition as required.

– – –1/1

TM4726 (01NOV03)

211-ATC-17

6020 to 6920S tractors 022204

PN=39

ATC Diagnostic Trouble Codes 3 Additional checks and assessment of intermittent faults

See Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required.

211 ATC 18

– – –1/1

ATC 000871.03 — Refrigerant Pressure Sending Unit, Shorted Circuit

Diagnostic trouble code ATC 000871.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the sending unit (B130;

refrigerant pressure). This indicates a short to a supply lead somewhere in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CEE –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. Compressor clutch M02 is de-activated. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-18

6020 to 6920S tractors 022204

PN=40

ATC Diagnostic Trouble Codes 2 Checking the refrigerant pressure sending unit (B130)

• Ignition ON. • Access address ATC017 or ATC044, or template ATC903 - Refrigerant pressure sending unit. • Make sure that the information displayed at addresses ATC 017 and ATC 044 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

211 ATC 19

ATC017 - Refrigerant pressure sending unit (B130)—Specification Display:—Pressure ....................................................................................... 0—31.00 bar Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 029 ................................................................................................................................. nA Compressor’s operating range:— Pressure ................................................................ between 1.38 (+/- 0.35) and 27.6 (+/1.38) bar ATC044 - Refrigerant pressure sending unit (B130), signal voltage—Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 029 ................................................................................................................................. nA • • • • •

Start the engine. Turn the airflow mode switch to its “de-icer/windshield” position. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Actuate the air-conditioning ON/OFF switch (snowflake), thus switching on the compressor clutch. • Make sure that the value displayed at address ATC017 gradually rises as refrigerant pressure increases.

– – –1/1

3 Initial component test

At the receiver-drier, perform a visual inspection of refrigerant pressure sending unit (B130) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

LX1025933 –UN–30SEP03

B130—Refrigerant pressure sending unit

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-19

6020 to 6920S tractors 022204

PN=41

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

211 ATC 20

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the refrigerant pressure sending unit, see summary of wiring layout in Circuit/Harness Test for Refrigerant Pressure Sending Unit (B130) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

– – –1/1

ATC 000871.04 — Refrigerant Pressure Sending Unit, Grounded or Open Circuit

Diagnostic trouble code ATC 000871.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the sending unit (B130;

refrigerant pressure). This indicates that circuit is shorted to ground or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CED –19–02SEP03–1/1

211-ATC-20

6020 to 6920S tractors 022204

PN=42

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. Compressor clutch M02 is de-activated. 211 ATC 21

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-21

6020 to 6920S tractors 022204

PN=43

ATC Diagnostic Trouble Codes 2 Checking the refrigerant pressure sending unit (B130)

211 ATC 22

• Ignition ON. • Access address ATC017 or ATC044, or template ATC903 - Refrigerant pressure sending unit. • Make sure that the information displayed at addresses ATC 017 and ATC 044 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC017 - Refrigerant pressure sending unit (B130)—Specification Display:—Pressure ....................................................................................... 0—31.00 bar Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 029 ................................................................................................................................. nA Compressor’s operating range:— Pressure ................................................................ between 1.38 (+/- 0.35) and 27.6 (+/1.38) bar ATC044 - Refrigerant pressure sending unit (B130), signal voltage—Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 029 ................................................................................................................................. nA • • • • •

Start the engine. Turn the airflow mode switch to its “de-icer/windshield” position. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Actuate the air-conditioning ON/OFF switch (snowflake), thus switching on the compressor clutch. • Make sure that the value displayed at address ATC017 gradually rises as refrigerant pressure increases.

– – –1/1

3 Initial component test

At the receiver-drier, perform a visual inspection of refrigerant pressure sending unit (B130) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

LX1025933 –UN–30SEP03

B130—Refrigerant pressure sending unit

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-22

6020 to 6920S tractors 022204

PN=44

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the refrigerant pressure sending unit, see summary of wiring layout in Circuit/Harness Test for Refrigerant Pressure Sending Unit (B130) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

– – –1/1

ATC 000876.03 — Air-Conditioning Relay, Shorted or Open Circuit

Diagnostic trouble code ATC 000876.03 is generated when the ClimaTrak controller registers a shorted or

open circuit at line 277, which leads to relay K09/4. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CF3 –19–02SEP03–1/1

211-ATC-23

6020 to 6920S tractors 022204

PN=45

211 ATC 23

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. Compressor clutch M02 cannot be switched on. 211 ATC 24

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-24

6020 to 6920S tractors 022204

PN=46

ATC Diagnostic Trouble Codes 2 Checking the air-conditioning relay (K09/4)

• • • • •

Start the engine. Turn the airflow mode switch to its “de-icer/windshield” position. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access addresses ATC004, ATC017 and ATC020, or template ATC904 Compressor clutch. • Check whether the preconditions for switching on the compressor clutch are satisfied (refrigerant pressure at address ATC017 and evaporator core temperature at address ATC020).

OK: Display in address ATC004 is OK: GO TO 5. NOT OK: Display in address ATC004 is not OK: GO TO 3.

ATC017 - Sending unit (B130) for refrigerant pressure, shown in bar— Specification Switching on the air-conditioning relay:— Pressure ............................................................................................ more than: 2.07 bar ATC020 - Sending unit (B129) for evaporator core temperature, shown in °C— Specification Switching on the air-conditioning relay:— Evaporator core temperature .................................................................. higher than 3 °C • Actuate the air-conditioning ON/OFF switch (snowflake). • Actuating the air-conditioning ON/OFF switch (snowflake) either energizes relay K09/4 or switches it off. Check the display in address ATC004: ATC004 - Air conditioner relay (K09/4), status—Specification Display:—Relay energized ............................................................................................ on Relay switched off ....................................................................................................... oFF Fault in relay or circuit .................................................................................................. Err

– – –1/1

TM4726 (01NOV03)

211-ATC-25

6020 to 6920S tractors 022204

PN=47

211 ATC 25

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of air-conditioning relay (K09/4) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

211 ATC 26

LX1029027 –UN–27JUN02

A—Relay box K01 B—Relay box K02 C—Fuse box F03 D—Fuse box F04 E—Fuse box F05 F—Fuse box F06 G—Fuse box F07 H—Relay box K08 I—Relay box K09 J—Relay box K10 ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Air-Conditioning Relay (K09/4), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-26

6020 to 6920S tractors 022204

PN=48

ATC Diagnostic Trouble Codes 5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the contacts at air-conditioning relay (K09/4), see summary of wiring layout in Circuit/Harness Test for Air-Conditioning Relay (K09/4) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

– – –1/1

ATC 000876.04 — Air-Conditioning Relay, Grounded Circuit

Diagnostic trouble code ATC 000876.04 is generated when the ClimaTrak controller registers a grounded

circuit at line 277, which leads to relay K09/4. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CF2 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. Compressor clutch M02 cannot be switched on. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-27

6020 to 6920S tractors 022204

PN=49

211 ATC 27

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

211 ATC 28

– – –1/1

2 Checking the air-conditioning relay (K09/4)

• • • • •

Start the engine. Turn the airflow mode switch to its “de-icer/windshield” position. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access addresses ATC004, ATC017 and ATC020, or template ATC904 Compressor clutch. • Check whether the preconditions for switching on the compressor clutch are satisfied (refrigerant pressure at address ATC017 and evaporator core temperature at address ATC020).

OK: Display in address ATC004 is OK: GO TO 5. NOT OK: Display in address ATC004 is not OK: GO TO 3.

ATC017 - Sending unit (B130) for refrigerant pressure, shown in bar— Specification Switching on the air-conditioning relay:— Pressure ............................................................................................ more than: 2.07 bar ATC020 - Sending unit (B129) for evaporator core temperature, shown in °C— Specification Switching on the air-conditioning relay:— Evaporator core temperature .................................................................. higher than 3 °C • Actuate the air-conditioning ON/OFF switch (snowflake). • Actuating the air-conditioning ON/OFF switch (snowflake) either energizes relay K09/4 or switches it off. Check the display in address ATC004: ATC004 - Air conditioner relay (K09/4), status—Specification Display:—Relay energized ............................................................................................ on Relay switched off ....................................................................................................... oFF Fault in relay or circuit .................................................................................................. Err

– – –1/1

TM4726 (01NOV03)

211-ATC-28

6020 to 6920S tractors 022204

PN=50

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of air-conditioning relay (K09/4) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as 211 required and do an ATC Operational Check for 29 Air-Conditioning Relay (K09/4), see 245-ATC.

LX1029027 –UN–27JUN02

A—Relay box K01 B—Relay box K02 C—Fuse box F03 D—Fuse box F04 E—Fuse box F05 F—Fuse box F06 G—Fuse box F07 H—Relay box K08 I—Relay box K09 J—Relay box K10 ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Air-Conditioning Relay (K09/4), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-29

6020 to 6920S tractors 022204

PN=51

ATC Diagnostic Trouble Codes 5 Additional checks and assessment of intermittent faults

211 ATC 30

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the contacts at air-conditioning relay (K09/4), see summary of wiring layout in Circuit/Harness Test for Air-Conditioning Relay (K09/4) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

– – –1/1

ATC 000876.10 — Compressor Clutch Engages and Disengages Too Often

Diagnostic trouble code ATC 000876.10 is generated when the air-conditioning compressor clutch is engaged and disengaged via relay K09/4 more than

six times a minute. Alarm level: Information

LX12234,0000CF1 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-30

6020 to 6920S tractors 022204

PN=52

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic 211 trouble code is active or ATC is regenerated after it has 31 been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check compressor clutch engagement / disengagement

NOTE: Reasons why the compressor clutch engages/disengages via relay K09/4 too frequently: • Loose contact or defect in circuit of air-conditioning relay (K09/4): • Loose contact or defect in circuit of evaporator core temperature sending unit (B129). • Loose contact or defect in circuit of refrigerant pressure sending unit (B130).

OK: Reasons why the compressor clutch engages/disengages too frequently could not be found: GO TO 9. NOT OK: Reasons why the compressor clutch engages/disengages too frequently could be found: • Refrigerant pressure sending unit (B130) not OK: GO TO 3. • Evaporator core temperature sending unit (B129) not OK: GO TO 5. • Air-conditioning relay (K09/4): GO TO 7.

Test: • Start the engine. • Access addresses ATC004, ATC017 and ATC045, or template ATC904 Compressor clutch. • Turn the airflow mode switch to its “de-icer/windshield” position. • Turn the fan speed control as far as it will go to the right. • Turn the temperature control as far as it will go to the left (Lo). • Actuate the air-conditioning ON/OFF switch (snowflake), thus switching on the compressor clutch. • Check whether a change in the sending unit values (refrigerant pressure and evaporator core temperature) is causing the compressor clutch to engage and disengage too frequently. ATC004 - Air conditioner relay (K09/4), status—Specification Display:—Relay energized ............................................................................................ on Relay switched off ....................................................................................................... oFF Fault in relay or circuit .................................................................................................. Err ATC017 - Sending unit (B130) for refrigerant pressure, shown in bar— Specification Switching off the air-conditioning relay:— Pressure .............................................................................................. less than: 1.38 Pressure ............................................................................................ more than: 27.6 Switching on the air-conditioning relay:— Pressure .............................................................................................. less than: 18.0 Pressure ............................................................................................ more than: 2.07

bar bar bar bar

ATC020 - Sending unit (B129) for evaporator core temperature, shown in °C— Specification Switching on the air-conditioning relay:— Evaporator core temperature .................................................................. higher than 3 °C – – –1/1

TM4726 (01NOV03)

211-ATC-31

6020 to 6920S tractors 022204

PN=53

ATC Diagnostic Trouble Codes 3 Initial component test, refrigerant pressure sending unit (B130)

At the receiver-drier, perform a visual inspection of refrigerant pressure sending unit (B130) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

211 ATC 32

LX1025933 –UN–30SEP03

B130—Refrigerant pressure sending unit

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit, refrigerant pressure sending unit (B130)

Do a Circuit/Harness Test for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

OK: GO TO 9. NOT OK: Recondition as required and do an Operational Check for Refrigerant Pressure Sending Unit (B130), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-32

6020 to 6920S tractors 022204

PN=54

ATC Diagnostic Trouble Codes 5 Initial component test, evaporator core temperature sending unit (B129)

Perform a visual inspection of evaporator core temperature sending unit (B129) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 6. NOT OK: Recondition sub-assemblies, connectors or contacts as 211 required and do an ATC Operational Check for 33 Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

LX1025935 –UN–30SEP03

B129—Sending unit for evaporator core temperature ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

6 Checking the circuit, evaporator core temperature sending unit (B129)

Do a Circuit/Harness Test for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

OK: GO TO 9. NOT OK: Recondition as required and do an Operational Check for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-33

6020 to 6920S tractors 022204

PN=55

ATC Diagnostic Trouble Codes 7 Initial component test, air-conditioning relay (K09/4)

Perform a visual inspection of air-conditioning relay (K09/4) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 8. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

211 ATC 34

LX1029027 –UN–27JUN02

A—Relay box K01 B—Relay box K02 C—Fuse box F03 D—Fuse box F04 E—Fuse box F05 F—Fuse box F06 G—Fuse box F07 H—Relay box K08 I—Relay box K09 J—Relay box K10 ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

8 Checking the circuit, air-conditioning relay (K09/4)

Do a Circuit/Harness Test for Air-Conditioning Relay (K09/4), see 245-ATC.

OK: GO TO 9. NOT OK: Recondition as required and do an Operational Check for Air-Conditioning Relay (K09/4), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-34

6020 to 6920S tractors 022204

PN=56

ATC Diagnostic Trouble Codes 9 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Check the connections in the circuit, see summary of wiring layout in: – Circuit/Harness Test for Refrigerant Pressure Sending Unit (B130), see 245-ATC. – Circuit/Harness Test for Evaporator Core Temperature Sending Unit (B129), see 245-ATC. – Circuit/Harness Test for Air-Conditioning Relay (K09/4), see 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

ATC 000876.14 — Compressor Switches Off Due to Engine Overheating

The air-conditioning compressor clutch was switched off by the ClimaTrak controller due to an active diagnostic trouble code that indicates engine

overheating. Diagnostic trouble codes indicating engine overheating take priority. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CF0 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. Compressor is switched off. The compressor is switched on again as soon as the coolant temperature recorded while the diagnostic trouble code is active drops by 5 °C (41 °F).

– – –1/1

TM4726 (01NOV03)

211-ATC-35

6020 to 6920S tractors 022204

PN=57

211 ATC 35

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: Diagnostic trouble codes indicating engine overheating from other control units take priority.

211 ATC 36

– – –1/1

ATC 000919.03 — Solar Sensor Activated

The solar sensor is activated at input address ATC 23 and/or ATC 24. The ClimaTrak controller detects an

open circuit, as no solar sensor is installed. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CEF –19–02SEP03–1/1

Diagnostics Reaction of controller: No restriction on functionality.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-36

6020 to 6920S tractors 022204

PN=58

ATC Diagnostic Trouble Codes 2 Checking the input addresses for solar sensors

• Access address ATC024.

OK: Diagnosis completed.

ATC 24 –– Front solar sensor, activate/deactivate—Specification Solar sensor activated:—Status .................................................................................. 001 Solar sensor de-activated:—Status ............................................................................. 000

NOT OK: Modify setting, and confirm. 211 ATC 37

• Access address ATC025. ATC 25 –– Rear solar sensor, activate/deactivate—Specification Solar sensor activated:—Status .................................................................................. 001 Solar sensor de-activated:—Status ............................................................................. 000

– – –1/1

ATC 000923.03 — Driver Unit for the Fan Motors, Shorted Circuit

Diagnostic trouble code ATC 000923.03 is generated when the ClimaTrak controller registers an excessively high voltage at line 956, which leads to the

fan motor driver unit (A59). This indicates a short to a supply lead somewhere in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CF4 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-37

6020 to 6920S tractors 022204

PN=59

ATC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 1.2

211 ATC 38

1.2

OK: GO TO 2

Check the power supply to the fan motor driver unit:

NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

• Bridging plug K10/1. • Fuse F05/13. • Fuse F05/1.

– – –1/1

2 Checking the fan control

• • • • •

Ignition ON. Turn the fan speed control as far as it will go to the left (OFF). Turn the temperature control as far as it will go to the left (Lo). Access address ATC005. Slowly turn the fan speed control through its entire range till it stops at the other extreme. • Make sure that the information displayed at address ATC005 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC005 - Fan speed, shown in percent—Specification Display:—Fan OFF ...................................................................................................... 000 Fan control turned as far to the right as it will go .............................................................................................................. 038 - 100 Fault in circuit or driver unit ......................................................................................... Err – – –1/1

TM4726 (01NOV03)

211-ATC-38

6020 to 6920S tractors 022204

PN=60

ATC Diagnostic Trouble Codes 3 Initial component test

In the heater/evaporator housing, perform a visual inspection of the driver unit for fan motors (A59) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as 211 required and do an ATC Operational Check for 39 Fan Motors, see 245-ATC.

LX1025931 –UN–30SEP03

A59—Driver unit for fan motors ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Fan Motor Driver Unit (A59), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the fan motor driver unit, see summary of wiring layout in Circuit/Harness Test for Fan Motor Driver Unit (A59) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

211-ATC-39

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=61

ATC Diagnostic Trouble Codes

ATC 000923.04 — Fan Motor Driver Unit, Grounded or Open Circuit

211 ATC 40

Diagnostic trouble code ATC 000923.04 is generated when the ClimaTrak controller registers an excessively low voltage at line 956, which leads to the

fan motor driver unit (A59). This indicates that circuit is shorted to ground or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CF5 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 1.2

1.2

OK: GO TO 2

Check the power supply to the fan motor driver unit:

NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

• Bridging plug K10/1. • Fuse F05/13. • Fuse F05/1.

– – –1/1

TM4726 (01NOV03)

211-ATC-40

6020 to 6920S tractors 022204

PN=62

ATC Diagnostic Trouble Codes 2 Checking the fan control

• • • • •

Ignition ON. Turn the fan speed control as far as it will go to the left (OFF). Turn the temperature control as far as it will go to the left (Lo). Access address ATC005. Slowly turn the fan speed control through its entire range till it stops at the other extreme. • Make sure that the information displayed at address ATC005 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

211 ATC 41

ATC005 - Fan speed, shown in percent—Specification Display:—Fan OFF ...................................................................................................... 000 Fan control turned as far to the right as it will go .............................................................................................................. 038 - 100 Fault in circuit or driver unit ......................................................................................... Err – – –1/1

3 Initial component test

In the heater/evaporator housing, perform a visual inspection of the driver unit for fan motors (A59) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Fan Motors, see 245-ATC.

LX1025931 –UN–30SEP03

A59—Driver unit for fan motors ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Fan Motor Driver Unit (A59), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-41

6020 to 6920S tractors 022204

PN=63

ATC Diagnostic Trouble Codes 5 Additional checks and assessment of intermittent faults

211 ATC 42

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the fan motor driver unit, see summary of wiring layout in Circuit/Harness Test for Fan Motor Driver Unit (A59) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

– – –1/1

ATC 000923.12 — Fan Motors, Malfunction

Diagnostic trouble code ATC 000923.12 is generated when a malfunction is detected in the fan motor circuit. Alarm level: Information

LX12234,0000CF6 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-42

6020 to 6920S tractors 022204

PN=64

ATC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic 211 trouble code is active or ATC is regenerated after it has 43 been deleted and a functional test has been carried out: GO TO 1.2

1.2

OK: GO TO 2

Check the power supply to the fan motor driver unit:

NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

• Bridging plug K10/1. • Fuse F05/13. • Fuse F05/1.

– – –1/1

2 Checking the fan control

• • • • •

Ignition ON. Turn the fan speed control as far as it will go to the left (OFF). Turn the temperature control as far as it will go to the left (Lo). Access address ATC005. Slowly turn the fan speed control through its entire range till it stops at the other extreme. • Make sure that the information displayed at address ATC005 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC005 - Fan speed, shown in percent—Specification Display:—Fan OFF ...................................................................................................... 000 Fan control turned as far to the right as it will go .............................................................................................................. 038 - 100 Fault at motor connecting lines or at motor ............................................................................................................................ Err

NOTE: There is a delay (up to 30 seconds) in displaying faults at motor connecting lines.

– – –1/1

TM4726 (01NOV03)

211-ATC-43

6020 to 6920S tractors 022204

PN=65

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of fan motors (M07 and M10), of the driver unit for fan motors (A59) and of the contacts associated with them:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Fan Motors, see 245-ATC.

211 ATC 44

LX1025932 –UN–30SEP03

M07—Fan motor M10—Fan motor A59—Driver unit for fan motors ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Fan Motors (M07 and M10), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the fan motors, see summary of wiring layout in Circuit/Harness Test for Fan Motors (M07 and M10) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Fan Motors, see 245-ATC.

211-ATC-44

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=66

ATC Diagnostic Trouble Codes

ATC 001079.03 — 5-volt Power Supply, Shorted or Open Circuit

Diagnostic trouble code ATC 001079.03 is generated when the voltage measured at the positive line of the power supply to the 5-volt components (defog sensor B143, refrigerant pressure sending unit B130, water valve B131 and motor for adjusting the air distribution

flaps B132) is over 5 volts. This indicates that the circuit is shorted to a supply lead or there is an internal interruption at the controller. Alarm level: Information

LX12234,0000CF7 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-45

6020 to 6920S tractors 022204

PN=67

211 ATC 45

ATC Diagnostic Trouble Codes 2 Functional test for 5-volt components

211 ATC 46

• Ignition ON. • Access addresses ATC007, ATC011, ATC018 and ATC044, or template ATC907 5-volt components. • Make sure that the information displayed at addresses ATC007, ATC011, ATC018 and ATC044 complies with the following:

OK: GO TO 4. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Adjust the positions via the airflow mode selection switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008 ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault in circuit, potentiometer or motor ..................................................................................... Err ATC018 - Defog sensor for windshield, frequency in Hz—Specification Display:—HZ .................................................................................................... 32.3 — 37 Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 028 ................................................................................................................................. nA ATC044 - Refrigerant pressure sending unit (B130), signal voltage—Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 029 ................................................................................................................................. nA

– – –1/1

3 Checking the circuit

Do a Circuit/Harness Test for 5-volt Power Supply, see 245-ATC.

OK: GO TO 4. NOT OK: Recondition as required and do an Operational Check for 5-volt Components, see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-46

6020 to 6920S tractors 022204

PN=68

ATC Diagnostic Trouble Codes 4 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections for the 5-volt power supply circuit, see summary of wiring layout in Circuit/Harness Test for 5-volt Power Supply in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for 5-volt Components, see 245-ATC.

– – –1/1

ATC 001079.04 — 5-volt Power Supply, Grounded Circuit

Diagnostic trouble code ATC 001079.04 is generated when the voltage measured at the positive line of the power supply to the 5-volt components (defog sensor B143, refrigerant pressure sending unit B130, fan

motor driver unit A59, water valve B131 and motor for adjusting the air distribution flaps B132) is below 0.5 volts. This indicates a short to ground in the circuit. Alarm level: Information

LX12234,0000CF8 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-47

6020 to 6920S tractors 022204

PN=69

211 ATC 47

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

211 ATC 48

– – –1/1

2 Functional test for 5-volt components

• Ignition ON. • Access addresses ATC007, ATC011, ATC018 and ATC044, or template ATC907 5-volt components. • Make sure that the information displayed at addresses ATC007, ATC011, ATC018 and ATC044 complies with the following:

OK: GO TO 4. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Adjust the positions via the airflow mode selection switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008 ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault in circuit, potentiometer or motor ..................................................................................... Err ATC018 - Defog sensor for windshield, frequency in Hz—Specification Display:—HZ .................................................................................................... 32.3 — 37 Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 028 ................................................................................................................................. nA ATC044 - Refrigerant pressure sending unit (B130), signal voltage—Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 029 ................................................................................................................................. nA

– – –1/1

TM4726 (01NOV03)

211-ATC-48

6020 to 6920S tractors 022204

PN=70

ATC Diagnostic Trouble Codes 3 Checking the circuit

Do a Circuit/Harness Test for 5-volt Power Supply, see 245-ATC.

OK: GO TO 4. NOT OK: Recondition as required and do an Operational Check for 5-volt Components, see 245-ATC.

– – –1/1

4 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections for the 5-volt power supply circuit, see summary of wiring layout in Circuit/Harness Test for 5-volt Power Supply in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for 5-volt Components, see 245-ATC.

– – –1/1

ATC 001546.03 — Potentiometer for Position of Water Valve, Shorted or Open Circuit

Diagnostic trouble code ATC 001546.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the potentiometer for positioning

the water valve (line 918). This indicates that circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CF9 –19–02SEP03–1/1

211-ATC-49

6020 to 6920S tractors 022204

PN=71

211 ATC 49

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. The water valve can only be controlled to a limited extent. 211 ATC 50

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-50

6020 to 6920S tractors 022204

PN=72

ATC Diagnostic Trouble Codes 2 Checking the potentiometer (B131) for water valve position

• • • •

Start the engine. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access address ATC011 and make sure that the display complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault in circuit, potentiometer or motor ..................................................................................... Err

211 ATC 51

– Turn the temperature control slowly to the right; the value on the display should drop to 0 when the knob is as far as it will go to the right (Hi). – Turn the temperature control slowly to the left; the value on the display should return to 100 when the knob is as far as it will go to the left (Lo). NOTE: The value on the display may linger at a certain value (e.g. 100 or 0) when the temperature control is turned. The position of the water valve is determined by the ClimaTrak controller via the position of the temperature control in relation to the registered difference in temperature. This ensures that the temperature changes at an even rate.

ClimaTrak is a trademark of Deere & Company

3 Initial component test

– – –1/1

Perform a visual inspection of the water valve (B131) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Water Valve (B131), see 245-ATC.

LX1025934 –UN–30SEP03

B131—Water valve ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-51

6020 to 6920S tractors 022204

PN=73

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Water Valve (B131), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

211 ATC 52

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the water valve, see summary of wiring layout in Circuit/Harness Test for Water Valve (B131) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

ATC 001546.04 — Potentiometer for Water Valve Position, Grounded Circuit

Diagnostic trouble code ATC 001546.04 is generated when the ClimaTrak controller measures below 0 volt at the signal input of the potentiometer for positioning

the water valve (line 918). This indicates a short to ground in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CFA –19–02SEP03–1/1

211-ATC-52

6020 to 6920S tractors 022204

PN=74

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. The water valve can only be controlled to a limited extent. 211 ATC 53

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-53

6020 to 6920S tractors 022204

PN=75

ATC Diagnostic Trouble Codes 2 Checking the potentiometer (B131) for water valve position

• • • •

Start the engine. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access address ATC011 and make sure that the display complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault in circuit, potentiometer or motor ..................................................................................... Err

211 ATC 54

– Turn the temperature control slowly to the right; the value on the display should drop to 0 when the knob is as far as it will go to the right (Hi). – Turn the temperature control slowly to the left; the value on the display should return to 100 when the knob is as far as it will go to the left (Lo). NOTE: The value on the display may linger at a certain value (e.g. 100 or 0) when the temperature control is turned. The position of the water valve is determined by the ClimaTrak controller via the position of the temperature control in relation to the registered difference in temperature. This ensures that the temperature changes at an even rate.

ClimaTrak is a trademark of Deere & Company

3 Initial component test

– – –1/1

Perform a visual inspection of the water valve (B131) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Water Valve (B131), see 245-ATC.

LX1025934 –UN–30SEP03

B131—Water valve ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-54

6020 to 6920S tractors 022204

PN=76

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Water Valve (B131), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the water valve, see summary of wiring layout in Circuit/Harness Test for Water Valve (B131) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

ATC 001547.03 — Sending Units for Evaporator Core Temperature, Shorted or Open Circuit

Diagnostic trouble code ATC 001547.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the sending unit (B129; for

evaporator core temperature). This indicates that circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CFB –19–02SEP03–1/1

211-ATC-55

6020 to 6920S tractors 022204

PN=77

211 ATC 55

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. 211 ATC 56

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Checking the sending unit (B129) for evaporator core temperature

• • • •

Ignition ON. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the right (Hi). Access address ATC020 or ATC045, or template ATC905 - Sending unit for evaporator core temperature. • Make sure that the information displayed at addresses ATC 020 and ATC 045 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC020 - Sending unit (B129) for evaporator core temperature, shown in °C— Specification Display:—Temperature ............................................................................ -10.0—80.00 °C Fault in circuit or sending unit ...................................................................................... Err ATC045 - Sending unit (B129) for evaporator core temperature, signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err • Start the engine and run it at 1500 rpm. • Once again access address ATC020, or template ATC905 - Sending unit for evaporator core temperature. • Check whether the temperature shown in address ATC020 is slowly rising as cab temperature rises. – – –1/1

TM4726 (01NOV03)

211-ATC-56

6020 to 6920S tractors 022204

PN=78

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of evaporator core temperature sending unit (B129) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as 211 required and do an ATC Operational Check for 57 Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

LX1025935 –UN–30SEP03

B129—Sending unit for evaporator core temperature

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections in the sending unit circuit for evaporator core temperature, see summary of wiring layout in Circuit/Harness Test for Sending Unit (B129; Evaporator Core Temperature) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition the circuit, sub-assemblies or terminals as required and do an Operational Check for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-57

6020 to 6920S tractors 022204

PN=79

ATC Diagnostic Trouble Codes

ATC 001547.04 — Sending Unit for Evaporator Core Temperature, Short to Ground

211 ATC 58

Diagnostic trouble code ATC 001547.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the sending unit (B129; for

evaporator core temperature). This indicates a short to ground in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000CFC –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-58

6020 to 6920S tractors 022204

PN=80

ATC Diagnostic Trouble Codes 2 Checking the sending unit (B129) for evaporator core temperature

• • • •

Ignition ON. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the right (Hi). Access address ATC020 or ATC045, or template ATC905 - Sending unit for evaporator core temperature. • Make sure that the information displayed at addresses ATC 020 and ATC 045 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

211 ATC 59

ATC020 - Sending unit (B129) for evaporator core temperature, shown in °C— Specification Display:—Temperature ............................................................................ -10.0—80.00 °C Fault in circuit or sending unit ...................................................................................... Err ATC045 - Sending unit (B129) for evaporator core temperature, signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err • Start the engine and run it at 1500 rpm. • Once again access address ATC020, or template ATC905 - Sending unit for evaporator core temperature. • Check whether the temperature shown in address ATC020 is slowly rising as cab temperature rises. – – –1/1

3 Initial component test

Perform a visual inspection of evaporator core temperature sending unit (B129) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

LX1025935 –UN–30SEP03

B129—Sending unit for evaporator core temperature

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-59

6020 to 6920S tractors 022204

PN=81

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

211 ATC 60

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the sending unit circuit for evaporator core temperature, see summary of wiring layout in Circuit/Harness Test for Sending Unit (B129; Evaporator Core Temperature) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition the circuit, sub-assemblies or terminals as required and do an Operational Check for Evaporator Core Temperature Sending Unit (B129), see 245-ATC.

– – –1/1

ATC 001548.03 — Sending Unit for Actual Outlet Air Temperature, Shorted or Open Circuit

Diagnostic trouble code ATC 001548.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the sending unit (B128; for actual

outlet air temperature). This indicates that circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CFD –19–02SEP03–1/1

211-ATC-60

6020 to 6920S tractors 022204

PN=82

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. The water valve is adjusted according to the difference between actual temperature and desired temperature. 211 ATC 61

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Checking the sending unit (B128) for outlet air temperature

• • • •

Ignition ON. Turn the temperature control as far as it will go to the right (Hi). Turn the fan speed control as far as it will go to the right. Access address ATC010 or ATC041, or template ATC906 - Sending unit for actual outlet air temperature. • Make sure that the information displayed at addresses ATC 010 and ATC 041 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC010 - Sending unit (B128) for actual outlet air temperature, shown in °C— Specification Display:—Temperature ............................................................................ -10.0—99.90 °C Fault in circuit or sending unit ...................................................................................... Err ATC041 - Sending unit (B128) for outlet air temperature, signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err • Start the engine and run it at 1500 rpm. • Once again access address ATC010, or template ATC906 - Sending unit for actual outlet air temperature. • Check whether the value shown in address ATC010 is rising as outlet air temperature increases in the air duct. – – –1/1

TM4726 (01NOV03)

211-ATC-61

6020 to 6920S tractors 022204

PN=83

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of sending unit (B128; for actual outlet air temperature) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

211 ATC 62

LX1025936 –UN–30SEP03

B128—Sending unit for actual outlet air temperature

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections in the sending unit circuit for actual outlet air temperature, see summary of wiring layout in Circuit/Harness Test for Sending Unit (B128; Actual Outlet Air Temperature) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition the circuit, sub-assemblies or terminals as required and do an Operational Check for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-62

6020 to 6920S tractors 022204

PN=84

ATC Diagnostic Trouble Codes

ATC 001548.04 — Sending Unit for Actual Outlet Air Temperature, Grounded Circuit

Diagnostic trouble code ATC 001548.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the sending unit (B128; for

actual outlet air temperature). This indicates a short to ground in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000FBF –19–30SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. The water valve is adjusted according to the difference between actual temperature and desired temperature.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-63

6020 to 6920S tractors 022204

PN=85

211 ATC 63

ATC Diagnostic Trouble Codes 2 Checking the sending unit (B128) for outlet air temperature

211 ATC 64

• • • •

Ignition ON. Turn the temperature control as far as it will go to the right (Hi). Turn the fan speed control as far as it will go to the right. Access address ATC010 or ATC041, or template ATC906 - Sending unit for actual outlet air temperature. • Make sure that the information displayed at addresses ATC 010 and ATC 041 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC010 - Sending unit (B128) for actual outlet air temperature, shown in °C— Specification Display:—Temperature ............................................................................ -10.0—99.90 °C Fault in circuit or sending unit ...................................................................................... Err ATC041 - Sending unit (B128) for outlet air temperature, signal voltage— Specification Display:—Signal voltage ........................................................................... 0.0 — 5.0 volts Fault in circuit or sending unit ...................................................................................... Err • Start the engine and run it at 1500 rpm. • Once again access address ATC010, or template ATC906 - Sending unit for actual outlet air temperature. • Check whether the value shown in address ATC010 is rising as outlet air temperature increases in the air duct. – – –1/1

3 Initial component test

Perform a visual inspection of sending unit (B128; for actual outlet air temperature) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

LX1025936 –UN–30SEP03

B128—Sending unit for actual outlet air temperature

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-64

6020 to 6920S tractors 022204

PN=86

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the sending unit circuit for actual outlet air temperature, see summary of wiring layout in Circuit/Harness Test for Sending Unit (B128; Actual Outlet Air Temperature) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition the circuit, sub-assemblies or terminals as required and do an Operational Check for Sending Unit (B128; for Actual Outlet Air Temperature), see 245-ATC.

– – –1/1

ATC 001549.03 — Water Valve Motor, Shorted Circuit

Diagnostic trouble code ATC 001549.03 is generated when the ClimaTrak controller measures an excessively high voltage at connecting lines 937 and/or

946 of the water valve motor (B131). This indicates that the circuit is shorted. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000CFF –19–02SEP03–1/1

211-ATC-65

6020 to 6920S tractors 022204

PN=87

211 ATC 65

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. 211 ATC 66

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-66

6020 to 6920S tractors 022204

PN=88

ATC Diagnostic Trouble Codes 2 Checking the water valve motor

• • • •

Start the engine. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access address ATC011 and make sure that the display complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault at motor connecting lines, at motor or at potentiometer ................................................................................................................ Err

211 ATC 67

– Turn the temperature control slowly to the right; the value on the display should drop to 0 when the knob is as far as it will go to the right (Hi). – Turn the temperature control slowly to the left; the value on the display should return to 100 when the knob is as far as it will go to the left (Lo). NOTE: The value on the display may linger at a certain value (e.g. 100 or 0) when the temperature control is turned. The position of the water valve is determined by the ClimaTrak controller via the position of the temperature control in relation to the registered difference in temperature. This ensures that the temperature changes at an even rate.

ClimaTrak is a trademark of Deere & Company

3 Initial component test

– – –1/1

Perform a visual inspection of the water valve (B131) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Water Valve (B131), see 245-ATC.

LX1025934 –UN–30SEP03

B131—Water valve ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-67

6020 to 6920S tractors 022204

PN=89

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Water Valve (B131), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

211 ATC 68

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

Before doing a check of the connections in the water valve circuit, see summary of wiring layout in Circuit/Harness Test for Water Valve (B131) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

ATC 001549.04 — Water Valve Motor, Grounded Circuit

Diagnostic trouble code ATC 001549.04 is generated when the ClimaTrak controller measures an excessively low voltage at connecting lines 937 and/or

946 of the water valve motor (B131). This indicates that the circuit is shorted. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000D00 –19–02SEP03–1/1

211-ATC-68

6020 to 6920S tractors 022204

PN=90

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. 211 ATC 69

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-69

6020 to 6920S tractors 022204

PN=91

ATC Diagnostic Trouble Codes 2 Checking the water valve motor

• • • •

Start the engine. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access address ATC011 and make sure that the display complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault at motor connecting lines, at motor or at potentiometer ................................................................................................................ Err

211 ATC 70

– Turn the temperature control slowly to the right; the value on the display should drop to 0 when the knob is as far as it will go to the right (Hi). – Turn the temperature control slowly to the left; the value on the display should return to 100 when the knob is as far as it will go to the left (Lo). NOTE: The value on the display may linger at a certain value (e.g. 100 or 0) when the temperature control is turned. The position of the water valve is determined by the ClimaTrak controller via the position of the temperature control in relation to the registered difference in temperature. This ensures that the temperature changes at an even rate.

ClimaTrak is a trademark of Deere & Company

3 Initial component test

– – –1/1

Perform a visual inspection of the water valve (B131) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Water Valve (B131), see 245-ATC.

LX1025934 –UN–30SEP03

B131—Water valve ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-70

6020 to 6920S tractors 022204

PN=92

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Water Valve (B131), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the water valve circuit, see summary of wiring layout in Circuit/Harness Test for Water Valve (B131) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

ATC 001549.07 — Water Valve, Malfunction

Diagnostic trouble code ATC 001549.07 is generated when the ClimaTrak controller receives a valid actual (position) signal from the water valve’s position potentiometer, but the water valve cannot be moved to

its desired position via the motor’s connecting lines. This indicates a mechanical fault at the water valve or an open line at the motor’s connecting lines. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000D01 –19–02SEP03–1/1

211-ATC-71

6020 to 6920S tractors 022204

PN=93

211 ATC 71

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. 211 ATC 72

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-72

6020 to 6920S tractors 022204

PN=94

ATC Diagnostic Trouble Codes 2 Check the position of the water valve.

• • • •

Start the engine. Turn the fan speed control as far as it will go to the right. Turn the temperature control as far as it will go to the left (Lo). Access address ATC011 and make sure that the display complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC011 - Potentiometer (B131) for water valve position, status—Specification Temperature control set as far as it will go to the left (Lo):—Valve closed ............................................................................... 100 Temperature control set as far as it will go to the right (Hi):—Valve opened ............................................................................ 000 Display if malfunction occurs:—Fault in circuit, potentiometer or motor ..................................................................................... Err

211 ATC 73

– Turn the temperature control slowly to the right; the value on the display should drop to 0 when the knob is as far as it will go to the right (Hi). – Turn the temperature control slowly to the left; the value on the display should return to 100 when the knob is as far as it will go to the left (Lo). NOTE: The value on the display may linger at a certain value (e.g. 100 or 0) when the temperature control is turned. The position of the water valve is determined by the ClimaTrak controller via the position of the temperature control in relation to the registered difference in temperature. This ensures that the temperature changes at an even rate.

ClimaTrak is a trademark of Deere & Company

3 Initial component test

– – –1/1

Perform a visual inspection of the water valve (B131) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Water Valve (B131), see 245-ATC.

LX1025934 –UN–30SEP03

B131—Water valve ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-73

6020 to 6920S tractors 022204

PN=95

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Water Valve (B131), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

211 ATC 74

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: GO TO 6.

• Before doing a check of the connections in the water valve circuit, see summary of wiring layout in Circuit/Harness Test for Water Valve (B131) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

6 Checking for a mechanical defect at the water valve

Before checking the water valve for a mechanical defect, see also “Replace Water Valve” (Repair manual, 90-10).

OK: Diagnosis completed. NOT OK: Recondition as required and do an Operational Check for Water Valve (B131), see 245-ATC.

– – –1/1

ATC 001549.13 — Water Valve Not Calibrated

Diagnostic trouble code ATC 001549.13 is generated when the water valve is found to have an invalid

calibration, or is not yet calibrated. Alarm level: Information

LX12234,0000D02 –19–02SEP03–1/1

TM4726 (01NOV03)

211-ATC-74

6020 to 6920S tractors 022204

PN=96

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. 211 ATC 75

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Calibrating the ClimaTrak controller (ATC)

1. Before calibrating the ATC controller, see "Calibration via the ATC Controller (Water Valve and Mode Control)" in 245-ATC. 2. Delete the diagnostic trouble code and do an Operational Check for Water Valve (B131), see 245-ATC.

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

OK: Diagnosis completed. NOT OK: Automatic calibration not possible or diagnostic trouble code ATC 001549.13 is regenerated after the operational check: GO TO 3.

– – –1/1

211-ATC-75

6020 to 6920S tractors 022204

PN=97

ATC Diagnostic Trouble Codes 3 Calibrate the water valve manually

1. Before calibrating the water valve manually, see Address ATC022 –– Water valve, calibrate. 2. Delete the diagnostic trouble code and do an Operational Check for Water Valve (B131), see 245-ATC.

211 ATC 76

OK: Diagnosis completed. NOT OK: If no ATC diagnostic trouble codes are saved that indicate a problem at the water valve: Check for mechanical defects at the water valve.

– – –1/1

ATC 001552.03 — Temperature Control, Shorted or Open Circuit

Diagnostic trouble code ATC 001552.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the temperature control. This

indicates that the internal circuit of the controller is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000D03 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. The ClimaTrak controller operates in its basic mode. Temperature is set to 22 °C (72 °F).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-76

6020 to 6920S tractors 022204

PN=98

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic 211 trouble code is active or ATC is regenerated after it has 77 been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the temperature control potentiometer

• Ignition ON. • Turn the temperature control slowly to the left; the value on the display should slowly go down when the knob is as far as it will go to the left (Lo). • Turn the temperature control slowly to right. The value on the display should increase slowly until the temperature control knob is turned as far as it will go to the right (Hi). • Access address ATC006. ATC006 - Desired value for inside air temperature, shown in °C—Specification Temperature control set as far as it will go to the left (Lo):—Status ........................................................................................... LO Temperature control set as far as it will go to the right (Hi):—Status ........................................................................................... HI Possible temperature range settings:— Temperature in °C .......................................................................................... 13.0 - 30.0 Display if there is a malfunction at the temperature control potentiometer:— Status ........................................................................................................................... Err

OK: Diagnosis completed. NOT OK: Before replacing and calibrating the ATC controller, see "Calibration via the ATC Controller (Water Valve and Mode Control)" in 245-ATC.

– – –1/1

ATC 001552.04 — Temperature Control, Grounded Circuit

Diagnostic trouble code ATC 001552.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the temperature control.

This indicates a short to ground in the internal circuit of the controller. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000D04 –19–02SEP03–1/1

211-ATC-77

6020 to 6920S tractors 022204

PN=99

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Temperature control is restricted. The ClimaTrak controller operates in its basic mode. Temperature is set to 22 °C (72 °F). 211 ATC 78

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the temperature control potentiometer

• Ignition ON. • Turn the temperature control slowly to the left; the value on the display should slowly go down when the knob is as far as it will go to the left (Lo). • Turn the temperature control slowly to right. The value on the display should increase slowly until the temperature control knob is turned as far as it will go to the right (Hi). • Access address ATC006. ATC006 - Desired value for inside air temperature, shown in °C—Specification Temperature control set as far as it will go to the left (Lo):—Status ........................................................................................... LO Temperature control set as far as it will go to the right (Hi):—Status ........................................................................................... HI Possible temperature range settings:— Temperature in °C .......................................................................................... 13.0 - 30.0 Display if there is a malfunction at the temperature control potentiometer:— Status ........................................................................................................................... Err

OK: Diagnosis completed. NOT OK: Before replacing and calibrating the ATC controller, see "Calibration via the ATC Controller (Water Valve and Mode Control)" in 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-78

6020 to 6920S tractors 022204

PN=100

ATC Diagnostic Trouble Codes

ATC 001553.03 — Fan Speed Control, Shorted or Open Circuit

Diagnostic trouble code ATC 001553.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of the fan speed control. This

indicates that the internal circuit of the controller is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

211 ATC 79

LX12234,0000D05 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. The ClimaTrak controller operates in its basic mode. Fan speed is set at 75% of its maximum output.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-79

6020 to 6920S tractors 022204

PN=101

ATC Diagnostic Trouble Codes 2 Check the fan speed potentiometer

• Ignition ON. • Slowly turn the fan speed control through its entire range. • Access address ATC003.

OK: Diagnosis completed.

ATC003 - Desired value for fan speed control, status—Specification Fan speed control turned as far as it will go to the left (OFF position):—Status ......................................................................... oFF Fan speed control not in OFF position, but at any position up to and including maximum:—Status ........................................................................................................ on AUTOMATIC button:—AUTOMATIC activated ..................................................................................................................... Auto Display if there is a malfunction at the fan speed potentiometer:—Status ................................................................................ Err

211 ATC 80

NOT OK: Before replacing and calibrating the ATC controller, see "Calibration via the ATC Controller (Water Valve and Mode Control)" in 245-ATC.

– – –1/1

ATC 001553.04 — Fan Speed Control, Grounded Circuit

Diagnostic trouble code ATC 001553.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of the fan speed control. This

indicates a short to ground in the internal circuit of the controller. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000D06 –19–02SEP03–1/1

Diagnostics Reaction of controller: Temperature control is restricted. The ClimaTrak controller operates in its basic mode. Fan speed is set at 75% of its maximum output.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-80

6020 to 6920S tractors 022204

PN=102

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic 211 trouble code is active or ATC is regenerated after it has 81 been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the fan speed potentiometer

• Ignition ON. • Slowly turn the fan speed control through its entire range. • Access address ATC003.

OK: Diagnosis completed.

ATC003 - Desired value for fan speed control, status—Specification Fan speed set as far as it will go to the left:—Status ................................................................................................................. oFF Fan speed control not in OFF position, but at any position up to and including maximum:—Status ........................................................................................................ on AUTOMATIC button:—AUTOMATIC activated ..................................................................................................................... Auto Display if there is a malfunction at the fan speed potentiometer:—Status ................................................................................ Err

NOT OK: Before replacing and calibrating the ATC controller, see "Calibration via the ATC Controller (Water Valve and Mode Control)" in 245-ATC.

– – –1/1

ATC 002000.09 — Engine Control Unit is not Transmitting any Data (Coolant Temperature)

Diagnostic trouble code ATC 002000.09 is generated when there is a problem in transferring data between the engine control unit (ECU) and the ClimaTrak controller. Reception of the CAN message regarding

coolant temperature is intermittent or non-existent (intermittent reception could be due to a loose wire). Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000D07 –19–02SEP03–1/1

211-ATC-81

6020 to 6920S tractors 022204

PN=103

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: A coolant temperature of 75 °C (167 °F) is assumed by the ClimaTrak controller. 211 ATC 82

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 ECU diagnostic trouble codes take priority.

1.3 - A general 29-bit CAN BUS problem Are additional diagnostic trouble codes are saved that indicate a problem in the 29-bit CAN BUS?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no ECU diagnostic trouble codes exist: GO TO 1.3

OK: If additional diagnostic trouble codes are saved: Do the 29-bit CAN BUS - Check, (Section 213, Group 40). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2. – – –1/1

TM4726 (01NOV03)

211-ATC-82

6020 to 6920S tractors 022204

PN=104

ATC Diagnostic Trouble Codes 2 Checking the ATC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 ATC 83

ATC –– plug X597 (W47)—Specification Power supply:—Positive (lead 982) ...................................................... 12 volts at pin 20 Positive (lead 203) ................................................................................ 12 volts at pin 22 Ground (lead 050) ................................................................................................. at pin 9 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................... at pin 5 CAN- (lead 935) .................................................................................................. at pin 21

– – –1/1

3 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2 ECU Level 12 (DE10) –– plug X570 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin A2 Positive (lead 032) ................................................................................ 12 volts at pin K1 Positive (lead 992) ................................................................................ 12 volts at pin H1 Ground (lead 050) ............................................................................................... at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................ at pin G1 CAN- (lead 935) .................................................................................................. at pin F1

– – –1/1

TM4726 (01NOV03)

211-ATC-83

6020 to 6920S tractors 022204

PN=105

ATC Diagnostic Trouble Codes 4 Additional checks and assessment of intermittent faults

211 ATC 84

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Check the connectors of the control units. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required.

– – –1/1

ATC 523848.03 — Potentiometer for Position of Air Distribution Flaps, Shorted or Open Circuit

Diagnostic trouble code ATC 523848.03 is generated when the ClimaTrak controller measures over 5 volts at the signal input of potentiometer (B132; for position

of air distribution flaps). This indicates that circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000D08 –19–08SEP03–1/1

Diagnostics Reaction of controller: Air distribution control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-84

6020 to 6920S tractors 022204

PN=106

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic 211 trouble code is active or ATC is regenerated after it has 85 been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the potentiometer (B132) for position of air distribution flaps

• Ignition ON. • Access address ATC007. • Turn the airflow mode switch to the following settings in order to check whether the number displayed in address ATC007 complies with the following specifications:

OK: GO TO 5. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Airflow mode switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008

– – –1/1

TM4726 (01NOV03)

211-ATC-85

6020 to 6920S tractors 022204

PN=107

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of adjusting motor (B132; for air distribution) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

211 ATC 86

LX1025937 –UN–30SEP03

B132—Adjusting motor for air distribution ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections in the adjusting motor circuit, see summary of wiring layout in Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-86

6020 to 6920S tractors 022204

PN=108

ATC Diagnostic Trouble Codes

ATC 523848.04 — Potentiometer for Position of Air Distribution Flaps, Grounded Circuit

Diagnostic trouble code ATC 523848.04 is generated when the ClimaTrak controller measures below 0 volts at the signal input of potentiometer (B132; for

position of air distribution flaps). This indicates a short to ground in the circuit. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000D09 –19–08SEP03–1/1

Diagnostics Reaction of controller: Air distribution control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-87

6020 to 6920S tractors 022204

PN=109

211 ATC 87

ATC Diagnostic Trouble Codes 2 Check the potentiometer (B132) for position of air distribution flaps

• Ignition ON. • Access address ATC007. • Turn the airflow mode switch to the following settings in order to check whether the number displayed in address ATC007 complies with the following specifications:

OK: GO TO 5. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Airflow mode switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008

211 ATC 88

– – –1/1

3 Initial component test

Perform a visual inspection of adjusting motor (B132; for air distribution) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

LX1025937 –UN–30SEP03

B132—Adjusting motor for air distribution ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-88

6020 to 6920S tractors 022204

PN=110

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the adjusting motor circuit, see summary of wiring layout in Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

ATC 523848.05 — Adjusting Motor for Air Distribution, Shorted Circuit

Diagnostic trouble code ATC 523848.05 is generated when the ClimaTrak controller measures an excessively high voltage at connecting lines 928 and/or

929 of the adjusting motor (B132; for air distribution). This indicates that the circuit is shorted. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000D0A –19–08SEP03–1/1

211-ATC-89

6020 to 6920S tractors 022204

PN=111

211 ATC 89

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Air distribution control is restricted. 211 ATC 90

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the potentiometer (B132) for position of air distribution flaps

• Ignition ON. • Access address ATC007. • Turn the airflow mode switch to the following settings in order to check whether the number displayed in address ATC007 complies with the following specifications:

OK: GO TO 5. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Airflow mode switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008

– – –1/1

TM4726 (01NOV03)

211-ATC-90

6020 to 6920S tractors 022204

PN=112

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of adjusting motor (B132; for air distribution) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as 211 required and do an ATC Operational Check for 91 Adjusting Motor (B132; for Air Distribution), see 245-ATC.

LX1025937 –UN–30SEP03

B132—Adjusting motor for air distribution ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections in the adjusting motor circuit, see summary of wiring layout in Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-91

6020 to 6920S tractors 022204

PN=113

ATC Diagnostic Trouble Codes

ATC 523848.06 — Adjusting Motor for Air Distribution, Grounded Circuit

211 ATC 92

Diagnostic trouble code ATC 523848.06 is generated when the ClimaTrak controller measures an excessively low voltage at connecting lines 928 and/or

929 of the adjusting motor (B132; for air distribution). This indicates that the circuit is shorted. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000D0B –19–08SEP03–1/1

Diagnostics Reaction of controller: Air distribution control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-92

6020 to 6920S tractors 022204

PN=114

ATC Diagnostic Trouble Codes 2 Check the potentiometer (B132) for position of air distribution flaps

• Ignition ON. • Access address ATC007. • Turn the airflow mode switch to the following settings in order to check whether the number displayed in address ATC007 complies with the following specifications:

OK: GO TO 5. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Airflow mode switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008

211 ATC 93

– – –1/1

3 Initial component test

Perform a visual inspection of adjusting motor (B132; for air distribution) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

LX1025937 –UN–30SEP03

B132—Adjusting motor for air distribution ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-93

6020 to 6920S tractors 022204

PN=115

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

211 ATC 94

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the adjusting motor circuit, see summary of wiring layout in Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

ATC 523848.07 — Air Distribution, Malfunction

Diagnostic trouble code ATC 523848.07 is generated when the ClimaTrak controller receives a valid actual (position) signal for the position of the air distribution flaps, but the adjusting motor for air distribution cannot

be moved to its desired position via the motor’s connecting lines. This indicates a mechanical fault at the air distribution or an open line at the motor’s connecting lines.

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000D0C –19–08SEP03–1/1

211-ATC-94

6020 to 6920S tractors 022204

PN=116

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Air distribution control is restricted. 211 ATC 95

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the position of the air distribution flaps

• Ignition ON. • Access address ATC007. • Turn the airflow mode switch to the following settings in order to check whether the number displayed in address ATC007 complies with the following specifications:

OK: GO TO 5. NOT OK: GO TO 3.

ATC007 - Potentiometer (B132) for position of air distribution flaps, status— Specification Airflow mode switch:—Fault in circuit, at potentiometer or at motor ............................................................................................ 000 "De-ice (windshield)" position ...................................................................................... 001 "De-ice (windshield)/dashboard/footwell" position ........................................................................................................................ 002 "Footwell" position ....................................................................................................... 003 "Dashboard" position ................................................................................................... 004 Position between "De-ice (windshield)" and "Dashboard" ......................................................................................................... 005 Position between "De-ice (windshield)" and "Footwell" ............................................................................................................. 006 Calibration ................................................................................................................... 009 AUTOMATIC button:—AUTOMATIC activated ...................................................................................................................... 008

– – –1/1

TM4726 (01NOV03)

211-ATC-95

6020 to 6920S tractors 022204

PN=117

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of adjusting motor (B132; for air distribution) and of the contacts associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

211 ATC 96

LX1025937 –UN–30SEP03

B132—Adjusting motor for air distribution ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: GO TO 6

• Before doing a check of the connections in the adjusting motor lines, see summary of wiring layout in Circuit/Harness Test for Adjusting Motor (B132; for Air Distribution) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-96

6020 to 6920S tractors 022204

PN=118

ATC Diagnostic Trouble Codes 6 Checking for a mechanical defect at the air distribution

Before checking the air distribution for a mechanical defect, see also “Replace Control Mode (Adjusting Motor for Air Distribution)” (Repair manual, 90-10).

OK: Diagnosis completed. NOT OK: Recondition as required and do an Operational Check for Adjusting Motor (B132; for Air Distribution), see 245-ATC.

– – –1/1

ATC 523848.13 — Adjusting Motor for Air Distribution, Not Calibrated

Diagnostic trouble code ATC 523848.13 is generated when the adjusting motor for air distribution is found to

have an invalid calibration, or is not yet calibrated. Alarm level: Information

LX12234,0000D0D –19–08SEP03–1/1

Diagnostics Reaction of controller: Air distribution control is restricted.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-97

6020 to 6920S tractors 022204

PN=119

211 ATC 97

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

211 ATC 98

– – –1/1

2 Calibrating the ClimaTrak controller (ATC)

• Before calibrating the ATC controller, see "Calibration via the ATC Controller (Water Valve and Mode Control)" in 245-ATC. • Delete the diagnostic trouble code and do an Operational Check for Adjusting Motor (B132) for Air Distribution, see 245-ATC.

OK: Diagnosis completed. NOT OK: Automatic calibration not possible: GO TO 3.

ClimaTrak is a trademark of Deere & Company

3 Calibrating the adjusting motor for air distribution manually

– – –1/1

• Before calibrating the adjusting motor for air distribution manually, see Address ATC023 –– Control mode (adjusting motor for air distribution), calibrate. • Delete the diagnostic trouble code and do an Operational Check for Adjusting Motor (B132) for Air Distribution, see 245-ATC.

OK: Diagnosis completed. NOT OK: If no ATC diagnostic trouble codes are saved that indicate a problem at the adjusting motor for air distribution: Check the adjusting motor for air distribution and control mode for a mechanical defect.

– – –1/1

ATC 523860.03 — Defog Sensor, Shorted or Open Circuit

Diagnostic trouble code ATC 523860.03 is generated when the ClimaTrak controller registers a frequency at the signal input of the windshield defog sensor

(B143) that indicates that the circuit is shorted to a supply lead or is open. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

LX12234,0000FA6 –19–22SEP03–1/1

211-ATC-98

6020 to 6920S tractors 022204

PN=120

ATC Diagnostic Trouble Codes Diagnostics Reaction of controller: Air distribution control is restricted in the automatic mode. In automatic mode, air distribution is always set at the “De-ice (windshield)” position. 211 ATC 99

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

2 Check the defog sensor (B143)

• Ignition ON. • Access address ATC018. • Make sure that the information displayed at address ATC018 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC018 - Defog sensor for windshield, frequency in Hz—Specification Display:—Hz .............................................................................................. 32.26 — 37.88 Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 028 ................................................................................................................................. nA

– – –1/1

TM4726 (01NOV03)

211-ATC-99

6020 to 6920S tractors 022204

PN=121

ATC Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of windshield defog sensor (B143) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Defog Sensor (B143), see 245-ATC.

211 ATC ,100

LX1025938 –UN–30SEP03

B143—Defog sensor for windshield

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Defog Sensor (B143), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Defog Sensor (B143), see 245-ATC.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the defog sensor circuit, see summary of wiring layout in Circuit/Harness Test for Defog Sensor (B143) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems (ATC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition the circuit, sub-assemblies or terminals as required and do an Operational Check for Defog Sensor (B143).

211-ATC-100

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=122

ATC Diagnostic Trouble Codes

ATC 523860.04 — Defog Sensor, Grounded Circuit

Diagnostic trouble code ATC 523860.04 is generated when the ClimaTrak controller registers a frequency at the signal input of the windshield defog sensor

(B143) that indicates that the circuit is shorted to ground. Alarm level: Information

ClimaTrak is a trademark of Deere & Company

211 ATC ,101

LX12234,0000FC0 –19–30SEP03–1/1

Diagnostics Reaction of controller: Air distribution control is restricted in the automatic mode. In automatic mode, air distribution is always set at the “De-ice (windshield)” position.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

1 Preliminary test

– – –1/1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-ATC-101

6020 to 6920S tractors 022204

PN=123

ATC Diagnostic Trouble Codes 2 Check the defog sensor (B143)

• Ignition ON. • Access address ATC018. • Make sure that the information displayed at address ATC018 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC018 - Defog sensor for windshield, frequency in Hz—Specification Display:—Hz .............................................................................................. 32.26 — 37.88 Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 028 ................................................................................................................................. nA

211 ATC ,102

– – –1/1

3 Initial component test

Perform a visual inspection of windshield defog sensor (B143) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Defog Sensor (B143), see 245-ATC.

LX1025938 –UN–30SEP03

B143—Defog sensor for windshield

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Defog Sensor (B143), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Defog Sensor (B143), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-102

6020 to 6920S tractors 022204

PN=124

ATC Diagnostic Trouble Codes 5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections in the defog sensor circuit, see summary of wiring layout in Circuit/Harness Test for Defog Sensor (B143) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems. – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition the circuit, sub-assemblies or terminals as required and 211 do an Operational Check ATC for Defog Sensor (B143), ,103 see 245-ATC.

– – –1/1

ATC 523860.02 — Defog Sensor, Frequency out of Valid Range

Diagnostic trouble code ATC 523860.02 is generated when the ClimaTrak controller registers a frequency from defog sensor (B143) that is out of the valid

frequency range (32.26 - 37.88 Hz). Alarm level: Information

ClimaTrak is a trademark of Deere & Company

LX12234,0000FC1 –19–30SEP03–1/1

Diagnostics Reaction of controller: Air distribution control is restricted in the automatic mode. In automatic mode, air distribution is always set at the “De-ice (windshield)” position.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ATC-100, Theory of Operation. • Reference 290-15-200, ClimaTrak—Checks. • Reference 290-20-200, Operation of the ATC (ClimaTrak).

ClimaTrak is a trademark of Deere & Company

TM4726 (01NOV03)

– – –1/1

211-ATC-103

6020 to 6920S tractors 022204

PN=125

ATC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed. NOT OK: If the diagnostic trouble code is active or is regenerated after it has been deleted and a functional test has been carried out: GO TO 2.

211 ATC ,104

– – –1/1

2 Check the defog sensor (B143)

• Ignition ON. • Access address ATC018. • Make sure that the information displayed at address ATC018 complies with the following:

OK: GO TO 5. NOT OK: GO TO 3.

ATC018 - Defog sensor for windshield, frequency in Hz—Specification Display:—HZ ............................................................................................. 32.26 — 37.88 Fault in circuit or sending unit ...................................................................................... Err Sensor not activated at address ATC 028 ................................................................................................................................. nA

– – –1/1

3 Initial component test

Perform a visual inspection of windshield defog sensor (B143) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Defog Sensor (B143), see 245-ATC.

LX1025938 –UN–30SEP03

B143—Defog sensor for windshield

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-ATC-104

6020 to 6920S tractors 022204

PN=126

ATC Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Defog Sensor (B143), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Defog Sensor (B143), see 211 245-ATC. ATC ,105

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections in the defog sensor circuit, see summary of wiring layout in Circuit/Harness Test for Defog Sensor (B143) in 245-ATC. • For back-up, see also additional references for circuit checks: – Reference 245-ATC-100, Test Procedure in the Case of Occasional ATC Circuit Problems. – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition the circuit, sub-assemblies or terminals as required and do an Operational Check for Defog Sensor (B143), see 245-ATC.

– – –1/1

TM4726 (01NOV03)

211-ATC-105

6020 to 6920S tractors 022204

PN=127

ATC Diagnostic Trouble Codes

211 ATC ,106

TM4726 (01NOV03)

211-ATC-106

6020 to 6920S tractors 022204

PN=128

Group BCU

BCU Diagnostic Trouble Codes BCU 000070.31 — Handbrake Failure

Diagnostic trouble code BCU 000070.31 is saved if the basic control unit registers the signal for an activated handbrake for longer than 5 minutes during travel

(output signal of the handbrake switch). This diagnostic trouble code sets off an “Information” alarm.

LX16167,000005E –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Operator error. • Handbrake switch B37 defective. • Defective signal lead (cable 906). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Handbrake Switch” (Section 40, Group 25 in the Repair manual)

– – –1/1

1 Preliminary test

OK: • No operator error, GO TO 1.2

1.1 Ensure that the diagnostic trouble code was not generated due to an operating error (handbrake applied during driving).

1.2

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Operator error: Diagnosis completed.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2. – – –1/1

TM4726 (01NOV03)

211-BCU-1

6020 to 6920S tractors 022204

PN=129

211 BCU 1

BCU Diagnostic Trouble Codes 2 Checking the handbrake switch

OK: • Diagnosis completed.

Access address BCU 05 : BCU 05 –– Handbrake Switch Status (B37)—Specification Handbrake released:—Status .................................................................................. XXX1 Handbrake applied:—Status .................................................................................... XXX0

211 BCU 2

• Type of error indicates a loose contact, GO TO: Circuit/harness test for handbrake switch (B37). NOT OK: GO TO: Circuit/harness test for handbrake switch (B37).

– – –1/1

BCU 000084.02 — Wheel Speed Sender, Circuit Fault

Diagnostic trouble code BCU 000084.02 is saved if a problem in the circuit is recognized during the routine

check of the inductive sender. The alarm level: “Information” is triggered.

LX16167,000005F –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Wrong value in the input address for the configuration of the wheel speed sender. • Defective wheel speed sender (B35). • Defective line connections (cable 531 or 502). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Wheel Speed Sending Unit”, (Section 40, Group 30 in the Repair manual)

– – –1/1

TM4726 (01NOV03)

211-BCU-2

6020 to 6920S tractors 022204

PN=130

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. BCU 3

– – –1/1

2 Check input address for configuration of wheel speed sender

Access address BCU 30 :

OK: GO TO 3.

BCU 30 –– Configuration of Wheel Speed Sender (B09/B35)—Specification Wheel Speed Sender (B09/B35):— Status ....................................................................................................................... XX0X

NOT OK: Correct the input.

– – –1/1

3 Check wheel speed sender

Access address BCU 04 :

OK: Diagnosis completed.

BCU 04 –– Status, Wheel Speed Sender (B35/B09) —Specification No signal detected (tractor is stationary):—Status .................................................................................................. XX0X Signal detected by sender (during travel):—Status ......................................................................................................... XX1X

NOT OK: GO TO 4.

– – –1/1

4 Check circuit of wheel speed sender (B35/B09)

• Tractor without creeper: – for 6120 - 6620 tractors: GO TO: • Circuit/harness test for wheel speed sender (B35). • Circuit/harness test for wheel speed sender (B35) - SE tractors. • Circuit/harness test for wheel speed sender (B35) - open operator’s station . – for 6820 and 6920 tractors: GO TO Circuit/harness test for wheel speed sender (B35). • Tractor with creeper: – for 6120 - 6620 tractors: GO TO Circuit/harness test for wheel speed sender (B09). – for 6820 and 6920 tractors: GO TO Circuit/harness test for wheel speed sender (B09).

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-BCU-3

6020 to 6920S tractors 022204

PN=131

BCU Diagnostic Trouble Codes

BCU 000168.16 — System Voltage Too High (Engine Running)

211 BCU 4

Diagnostic trouble code BCU 000168.16 is saved if the operating voltage of the basic control unit (ELX battery voltage) is more than 15.5 volts at an engine speed of

more than 512 rpm. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000060 –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective battery. • Defective alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Remove/Install the Alternator , (Section 40, Group 15 in the Repair manual)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-BCU-4

6020 to 6920S tractors 022204

PN=132

BCU Diagnostic Trouble Codes 2 Check System Voltage (BCU System Voltage)

Access address BCU 32 :

OK: Diagnosis completed.

BCU 32 –– Voltage, System Voltage (BCU Operating Voltage)—Specification Switch ignition ON; engine OFF:— Voltage ................................................................................ between 11.2 and 12.7 volts Engine running in low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3. 211 BCU 5

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15.

OK: Diagnosis completed.

• Check battery, refer to "Battery Checks", Section 240, Group 15. NOT OK: Repair as required. – – –1/1

BCU 000168.17 — System Voltage Too Low (Engine Speed Over 1500 rpm)

Diagnostic trouble code BCU 000168.17 is saved if the operating voltage of the basic control unit (ELX battery voltage) is less than 12.5 volts at an engine speed of

more than 1500 rpm. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000061 –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connections.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Remove/Install the Alternator , (Section 40, Group 15 in the Repair manual)

– – –1/1

TM4726 (01NOV03)

211-BCU-5

6020 to 6920S tractors 022204

PN=133

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 1.2

211 BCU 6 1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as required.

– – –1/1

2 Check System Voltage (BCU System Voltage)

Access address BCU 32 :

OK: Diagnosis completed.

BCU 32 –– Voltage, System Voltage (BCU Operating Voltage)—Specification Switch ignition ON; engine OFF:— Voltage ................................................................................ between 11.2 and 12.7 volts Engine running in low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (BCU operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as required.

– – –1/1

BCU 000168.18 — System Voltage Too Low (Engine Speed Up to 1500 rpm)

Diagnostic trouble code BCU 000168.18 is saved if the operating voltage of the basic control unit (ELX battery voltage) is less than 11.2 volts at an engine speed

between 512 rpm and 1500 rpm. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000062 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-6

6020 to 6920S tractors 022204

PN=134

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connections.

211 BCU 7

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Remove/Install the Alternator , (Section 40, Group 15 in the Repair manual)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check System Voltage (BCU System Voltage)

Access address BCU 32 :

OK: Diagnosis completed.

BCU 32 –– Voltage, System Voltage (BCU Operating Voltage)—Specification Switch ignition ON; engine OFF:— Voltage ................................................................................ between 11.2 and 12.7 volts Engine running in low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-7

6020 to 6920S tractors 022204

PN=135

BCU Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

211 BCU 8

OK: Check all relevant connectors of the system voltage circuit (BCU operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

BCU 000186.02 — Rear PTO Speed Sender, Circuit Fault

Diagnostic trouble code BCU 000186.02 is saved if a problem in the circuit is recognized during the routine

check of the inductive rear PTO speed sender. The alarm level: “Information” is triggered.

LX16167,0000063 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective rear PTO speed sender (B06). • Defective line connections (cable 531 or 574). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-BCU-8

6020 to 6920S tractors 022204

PN=136

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO 211 TO 2. BCU 9

– – –1/1

2 Carry out an operational test on PTO speed sender (B06)

Access address BCU 03 :

OK: Diagnosis completed.

BCU 03 –– Status, Rear PTO Speed Sender (B06) —Specification No signal detected (rear PTO switched off):—Status .............................................................................................................. XXX0 Signal from sender detected (PTO turning):—Status ....................................................................................................... XXX1

NOT OK: GO TO: • Circuit/harness test for PTO speed sender (B06). • Circuit/harness test for PTO speed sender (B06) - SE tractors. • Circuit/harness test for PTO speed sender (B06)open operator’s station.

– – –1/1

BCU 000186.17 — Rear PTO Speed Not Registered

Diagnostic trouble code BCU 000186.17 is saved when the basic control unit still has not registered a signal (larger than 100 rpm) from the rear PTO speed

sender 20 seconds after the rear PTO has been switched on. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000065 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-9

6020 to 6920S tractors 022204

PN=137

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 10

• Defective rear PTO speed sender (B06). – Diagnostic trouble code BCU 000186.02 takes priority. • Mechanical or electric (short-circuit) defect at the rear PTO solenoid valve (Y04). – Diagnostic trouble code BCU 302073.31 takes priority. • Defective PTO modulating valve. • Mechanical or hydraulic problem at the PTO clutch or the PTO brake. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Reference 256-15-001, Power Train without Transmission — System Check. • Reference 256-15-006, Power Train without Transmission — Test Table. • General information on the rear PTO: Reference 256-20-001, Drive Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2. - Rear PTO Operational Check Switch on the rear PTO via PTO switch S21.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 1.2

OK: The rear PTO works when operated via rear PTO switch S21 Refer to diagnostics for erroneous rear PTO speed sender (diagnostic trouble code BCU 000186.02, Section 211, Group BCU). NOT OK: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-10

6020 to 6920S tractors 022204

PN=138

BCU Diagnostic Trouble Codes 2 Check Supply Voltage at Solenoid Valve of Rear PTO

NOTE: Supply voltage can only be checked with adapter wiring harness DFLX14 (see reference: “DFLX14 –– Adapter Wiring Harness”, 299-05). In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Defective solenoid valve. • Disconnect solenoid valve connector X95 and install adapter wiring harness DFLX14.

OK: GO TO 3. NOT OK: Refer to diagnostics for erroneous rear PTO solenoid valve (diagnostic trouble code BCU 302073.31, Section 211, Group BCU).

• Ignition ON. • Use a multimeter on adapter wiring harness DFLX14 to measure voltage between pins A and B. Test, Supply Voltage at the Solenoid Valve—Specification Rear PTO disengaged:—Voltage .......................................................................... 0 volts Rear PTO engaged:—Voltage .............................................................................. 12 volts

– – –1/1

3 Checking the rear PTO

See Reference 256-15-004 , Checking Pressure at the Rear PTO.

OK: Check for mechanical defects on the rear PTO. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

BCU 000190.02 — Engine Speed Sender, Circuit Fault

Diagnostic trouble code BCU 000190.02 is saved if a problem in the circuit is recognized during the routine

check of the inductive engine speed sender. The alarm level: “Information” is triggered

LX16167,0000066 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-11

6020 to 6920S tractors 022204

PN=139

211 BCU 11

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 12

• Wrong value in the input address for the configuration of the engine speed sender. • Defective engine speed sender (B01). • Defective line connections (cable 531 or 325). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Replacing the Engine Speed Sending Unit (B01), (Section 40, Group 30 in the Repair manual)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check input address for configuration of engine speed sender

Access address BCU 30 :

OK: GO TO 3

BCU 30 –– Configuration, Engine Speed Sender (B01)—Specification Adjustment for engine speed sender:— Status ....................................................................................................................... XXX0

NOT OK: Correct the input.

– – –1/1

3 Checking the combination of signals in diagnostic address BCU 03

Access address BCU 03 :

OK: Diagnosis completed.

BCU 03 –– Status, Engine Speed Sender (B01)—Specification No signal detected (tractor is stationary):—Status .................................................................................................. X0XX Signal detected by sender (during travel):—Status ......................................................................................................... X1XX

NOT OK: GO TO: • Circuit/Harness test for Engine Speed Sender (B01). • Circuit/harness test for engine speed sender (B01) - SE tractors. • Circuit/harness test for engine speed sender (B01) - open operator’s station . – – –1/1

TM4726 (01NOV03)

211-BCU-12

6020 to 6920S tractors 022204

PN=140

BCU Diagnostic Trouble Codes

BCU 000629.12 — Control Unit, Internal Error

Diagnostic trouble code BCU 000629.12 is saved when the basic control unit recognizes a software

problem. The diagnostic trouble code triggers the alarm level: “Information”.

211 BCU 13

LX16167,0000067 –19–03APR02–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replacing the basic control unit (BCU).

– – –1/1

BCU 000639.12 — Control Unit, Internal Error

Diagnostic trouble code BCU 000639.12 is saved when the basic control unit recognizes a software

problem. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000068 –19–03APR02–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-BCU-13

6020 to 6920S tractors 022204

PN=141

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replacing the basic control unit (BCU).

211 BCU 14

– – –1/1

BCU 000639.13 — 29-bit CAN BUS, High Error Rate

This diagnostic trouble code does not necessarily have any real meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with

this code. Diagnostic trouble code BCU 000639.13 is saved when the basic control unit recognizes a high error rate in the incoming CAN BUS messages. This diagnostic trouble code sets off an “Information” alarm.

LX16167,0000069 –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A general 29-bit CAN BUS problem. – Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Screen lines +930 and/or -932 defective. • Defective 29-bit CAN BUS connection to the basic control unit (cable 934 and/or 935). • Internal problem in the basic control unit. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-BCU-14

6020 to 6920S tractors 022204

PN=142

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and 211 no priority diagnostic BCU codes exist: GO TO 1.2 15 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: Diagnosis completed.

– – –1/1

BCU 000639.19 — 29-bit CAN BUS, Very High Error Rate

Diagnostic trouble code BCU 000639.19 is saved when the basic control unit recognizes a very high error rate in the incoming CAN BUS messages. The diagnostic trouble code triggers the alarm level: “Information”. This diagnostic trouble code does not

necessarily have any real meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,000006A –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-15

6020 to 6920S tractors 022204

PN=143

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 16

• A general 29-bit CAN BUS problem. – Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Screen lines +930 and/or -932 defective. • Defective 29-bit CAN BUS connection to the basic control unit (cable 934 and/or 935). • Internal problem in the basic control unit. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 1.2

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: Diagnosis completed.

– – –1/1

TM4726 (01NOV03)

211-BCU-16

6020 to 6920S tractors 022204

PN=144

BCU Diagnostic Trouble Codes

BCU 000746.31 — Differential Lock Solenoid Valve, Circuit Fault

BCU 000746.31 is saved if there is an open lead or a short circuit in the circuit of the solenoid valve when the solenoid valve is active (differential lock switched

on). The diagnostic trouble code deactivates the differential lock and triggers the following alarm level: “Information”.

211 BCU 17

LX16167,000006B –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective differential lock solenoid (Y05). • Defective line connections (cable 527 or 310). • Defective/bad ground connection via ground point XGND45 to XGND1. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-17

6020 to 6920S tractors 022204

PN=145

BCU Diagnostic Trouble Codes 2 Checking the differential lock solenoid valve

211 BCU 18

Test data for differential lock solenoid valve (Y05)—Specification Resistance check:—Solenoid resistance ....................................... 10 - 12 ohms at 20°C Voltage with differential lock disengaged:—Voltage .............................................................................................. 0 volt Voltage with differential lock engaged:— Voltage .................................................................................................................. 12 volts Amperage check with differential lock engaged:—Amperage .................................................. 1 - 1.2 amps at 20°C and 12-volt nominal voltage

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14. In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO: • Circuit/harness test for differential lock solenoid valve (Y05). • Circuit/harness test for differential lock solenoid valve (Y05) - SE tractors. • Circuit/harness test for differential lock solenoid valve (Y05) - open operator’s station. NOT OK: GO TO: • Circuit/harness test for differential lock solenoid valve (Y05). • Circuit/harness test for differential lock solenoid valve (Y05) - SE tractors. • Circuit/harness test for differential lock solenoid valve (Y05) - open operator’s station.

– – –1/1

BCU 000980.07 — Rear PTO, Switch Error

Diagnostic trouble code BCU 000980.07 is saved when the basic control unit receives the two output signals of the rear PTO switch (rear PTO ON or OFF) simultaneously or not at all. This indicates an

interruption or short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000006C –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-18

6020 to 6920S tractors 022204

PN=146

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

fuse F03/02. rear PTO switch S21. positive lead (cable 973). signal lead (cable 525 or 586).

211 BCU 19

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the PTO Switch” (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the combination of signals in diagnostic address BCU 07

Access address BCU 07 :

OK: Diagnosis completed.

BCU 07 –– Status, Rear PTO Switch (S21) —Specification Rear PTO disengaged:—Status ............................................................................... XX01 Rear PTO engaged:—Status ................................................................................... XX10

NOT OK: - On tractors with Command Arm: GO TO: Circuit/harness test for rear PTO switch (with Command Arm).

- On tractors without Command Arm: GO TO: • Circuit/harness test for rear PTO switch. • Circuit/harness test for rear PTO switch - SE tractors. • Circuit/harness test for rear PTO switch - open operator’s station.

– – –1/1

TM4726 (01NOV03)

211-BCU-19

6020 to 6920S tractors 022204

PN=147

BCU Diagnostic Trouble Codes

BCU 001676.31 — Relay for LTC Coolant Pump, Circuit Fault

211 BCU 20

Diagnostic trouble code BCU 001676.31 is saved if an open lead or short circuit exists in the detent coil circuit

of the relay. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000006D –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Wrong value in the input address for the function of the LTC coolant pump. Defective relay for LTC coolant pump K02/3. Defective line connections (cable 374 or 310). Defective/bad ground connection via ground point XGND44 to XGND5.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-001, Calibration and Input Addresses, Basic Functions. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-20

6020 to 6920S tractors 022204

PN=148

BCU Diagnostic Trouble Codes 2 Check the Input Address for Function of LTC Coolant Pump

Access address BCU 34 : BCU 34 –– Configuration, LTC Coolant Pump (W03) —Specification Coolant pump exist (AutoPowr/IVT transmission):—Status ................................................................................................ XX1 Coolant pump does not exist (PowrQuad Plus or AutoQuad transmission):—Status .................................................................. XX0

OK: GO TO: Circuit/harness test on relay for LTC coolant pump K02/3. NOT OK: Correct entry.

– – –1/1

BCU 001882.02 — Front PTO Speed Sender, Circuit Fault

Diagnostic trouble code BCU 001882.02 is saved if a problem in the circuit is recognized during the routine

check of the inductive front PTO speed sender. The alarm level: “Information” is triggered.

LX16167,000006E –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Wrong value in the input address for the configuration of the front PTO speed sender. • Defective front PTO speed sender (B58). • Defective line connections (cable 301 or 550/531). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-BCU-21

6020 to 6920S tractors 022204

PN=149

211 BCU 21

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BCU 22

– – –1/1

2 Check the input address for configuration of front PTO speed sender

Access address BCU 30 :

OK: GO TO 3.

BCU 30 –– Configuration, Front PTO Speed Sender (B58)—Specification Front PTO speed sender (B58):—Status ................................................................. 0XXX

NOT OK: Correct the input.

– – –1/1

3 Checking the combination of signals in diagnostic address BCU 03

Access address BCU 03 :

OK: Diagnosis completed.

BCU 03 –– Status, Front PTO Speed Sender (B58) —Specification No signal detected (rear PTO switched off):—Status .............................................................................................................. XX0X Signal from sender detected (PTO turning):—Status ....................................................................................................... XX1X

NOT OK: GO TO: • Circuit/harness test for front PTO speed sender (B58). • Circuit/harness test for front PTO speed sender (B58) - SE tractors. • Circuit/harness test for front PTO speed sender (B58) - open operator’s station . – – –1/1

BCU 001882.17 — Front PTO Speed Not Registered

Diagnostic trouble code BCU 001882.17 is saved if there is no signal from the front PTO speed sender at the basic control unit 20 seconds after the front PTO

has been switched on. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000070 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-22

6020 to 6920S tractors 022204

PN=150

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • •

Mechanical or electric (short-circuit) defect at the front PTO solenoid valve (Y01). Defective front PTO speed sender (B58). Defective PTO modulating valve. Mechanical or hydraulic problem at the PTO clutch or the PTO brake.

211 BCU 23

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Reference 256-15-001, Power Train without Transmission — System Check. • Reference 256-15-006, Power Train without Transmission — Test Table. • General information on the front PTO: Reference 256-20-001, Drive Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check Front PTO Switch

Access address BCU 07 :

OK: GO TO 3.

BCU 07 –– Status, Front PTO Switch (S06)—Specification Front PTO disengaged:—Status .............................................................................. 01XX Front PTO engaged:—Status ................................................................................... 10XX

NOT OK: Check the switch circuit (for the functional schematic of the circuit, refer to SE16B; for the position of the components, refer to W8).

– – –1/1

TM4726 (01NOV03)

211-BCU-23

6020 to 6920S tractors 022204

PN=151

BCU Diagnostic Trouble Codes 3 Check Front PTO Speed Sender

Perform test while motor is running.

OK: Diagnosis completed.

Access address BCU 03: NOT OK: GO TO 4. BCU 03 –– Status, Front PTO Speed Sender (B58) —Specification No signal detected (front PTO switched off):—Status .............................................................................................................. XX0X Signal from sender detected (front PTO switched on):—Status .............................................................................................. XX1X

211 BCU 24

– – –1/1

4 Check Supply Voltage at Solenoid Valve of Front PTO

NOTE: Supply voltage can only be checked with adapter wiring harness DFLX14 (see reference: “DFLX14 –– Adapter Wiring Harness”, 299-05). In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Defective solenoid valve. • Disconnect solenoid valve connector X166 and install adapter wiring harness DFLX14.

OK: GO TO 5. NOT OK: Check the circuit for short-circuits (for functional schematic refer to SE16B), repair if required and test the functionality.

• Ignition ON. • Use a multimeter on adapter wiring harness DFLX14 to measure voltage between pins A and B. Test, Supply Voltage at the Solenoid Valve—Specification PTO disengaged:—Voltage ..................................................................................... 0 volts PTO engaged:—Voltage ....................................................................................... 12 volts

– – –1/1

5 Checking the front PTO

Refer to Reference 256-15-005 , Checking the Pressure at the Front PTO

OK: Check for mechanical defects on the front PTO. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-BCU-24

6020 to 6920S tractors 022204

PN=152

BCU Diagnostic Trouble Codes

BCU 001893.07 — Front PTO, Switch Error

Diagnostic trouble code BCU 001893.07 is saved when the basic control unit receives the two output signals of the front PTO switch (front PTO ON or OFF) simultaneously or not at all. This indicates an

interruption or short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

211 BCU 25

LX16167,0000071 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

fuse F03/02. front PTO switch S06. positive lead (cable 973). signal lead (cable 901 or 904).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the PTO Switch” (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-25

6020 to 6920S tractors 022204

PN=153

BCU Diagnostic Trouble Codes 2 Check front PTO switch

Access address BCU 07 :

OK: • Diagnosis completed.

BCU 07 –– Status, Front PTO Switch (S06) —Specification Front PTO disengaged:—Status .............................................................................. 01XX Front PTO engaged:—Status ................................................................................... 10XX

• Type of error indicates a loose contact.

211 BCU 26

- On tractors with Command Arm: GO TO: Circuit/harness test for front PTO switch (S06) (with Command Arm).

- On tractors without Command Arm: GO TO: • Circuit/harness test for front PTO switch (S06). • Circuit/harness test for front PTO switch (S06) SE tractors. • Circuit/harness test for front PTO switch (S06) open operator’s station NOT OK: - On tractors with Command Arm: GO TO: Circuit/harness test for front PTO switch (S06) (with Command Arm).

- On tractors without Command Arm: GO TO: • Circuit/harness test for front PTO switch (S06). • Circuit/harness test for front PTO switch (S06) SE tractors. • Circuit/harness test for front PTO switch (S06)

– – –1/1

BCU 299780.07 — Malfunction at Turn Signal Switch

Diagnostic trouble code BCU 299780.07 is saved when the basic control unit receives the two output signals of the turn signal switch (turn signal LEFT or RIGHT) simultaneously. This indicates a short circuit to

the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000072 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-26

6020 to 6920S tractors 022204

PN=154

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective turn signal switch S08. • Defective signal lead (short circuit at cable 155 or 127).

211 BCU 27

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing Switches on Multi-Function Unit”, (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the turn signal switch

OK: • Diagnosis completed.

Access address BCU 10 : BCU 10 –– Status, Turn Signal Switch (S08)—Specification Turn signal lever not actuated:—Status ................................................................... X00X LEFT turn signal:—Status ........................................................................................ X10X RIGHT turn signal:—Status ...................................................................................... X01X

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for turn signal switch (S08). • Circuit/harness test for turn signal switch (S08) SE tractors. • Circuit/harness test for turn signal switch (S08) open operator’s station . NOT OK: GO TO: • Circuit/harness test for turn signal switch (S08). • Circuit/harness test for turn signal switch (S08) SE tractors. • Circuit/harness test for turn signal switch (S08) open operator’s station . – – –1/1

TM4726 (01NOV03)

211-BCU-27

6020 to 6920S tractors 022204

PN=155

BCU Diagnostic Trouble Codes

BCU 302001.31 — INFORMATION FOR OPERATOR: 250-Hour Service

211 BCU 28

Diagnostic trouble code BCU 302001.31 is generated when a 250-hour service is due. NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000073 –19–03APR02–1/1

BCU 302002.31 — INFORMATION FOR OPERATOR: 500-Hour Service

Diagnostic trouble code BCU 302002.31 is generated when a 500-hour service is due. NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000074 –19–03APR02–1/1

BCU 302003.31 — INFORMATION FOR OPERATOR: 750-Hour Service

Diagnostic trouble code BCU 302003.31 is generated when a 750-hour service is due. NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000075 –19–03APR02–1/1

BCU 302004.31 — INFORMATION FOR OPERATOR: 1500-Hour Service

Diagnostic trouble code BCU 302004.31 is generated when a 1500-hour service is due. NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000076 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-28

6020 to 6920S tractors 022204

PN=156

BCU Diagnostic Trouble Codes

BCU 302071.31 — INFORMATION FOR OPERATOR: Turn Off the Rear PTO Switch

Diagnostic trouble code BCU 302071.31 is generated if the rear PTO switch is already on when the ignition key is turned

211 BCU 29

NOTE: . This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000077 –19–03APR02–1/1

BCU 302073.31 — Rear PTO Solenoid, Circuit Fault

BCU 302073.31 is saved if there is an open lead or a short circuit in the circuit of the solenoid valve when the solenoid valve is active (rear PTO switched on).

The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000078 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective rear PTO solenoid (Y04). • Defective line connections (cable 575 or 310). • Defective/bad ground connection via ground point XGND45 to XGND1. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-BCU-29

6020 to 6920S tractors 022204

PN=157

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 BCU 30

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the rear PTO solenoid

Test data for the rear PTO solenoid valve (Y04) —Specification Resistance check:—Solenoid resistance ....................................... 10 - 12 ohms at 20°C Voltage when rear PTO is disengaged:— Voltage ..................................................................................................................... 0 volt Voltage when rear PTO is engaged:— Voltage .................................................................................................................. 12 volts Amperage check with rear PTO engaged:—Amperage ........................................ 1 - 1.2 amps 20°C and 12-volt nominal voltage

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14. In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO: • Circuit/harness test for rear PTO solenoid valve (Y04). • Circuit/harness test for rear PTO solenoid valve (Y04) - SE tractors. • Circuit/harness test for rear PTO solenoid valve (Y04) - open operator’s station . NOT OK: GO TO: • Circuit/harness test for rear PTO solenoid valve (Y04). • Circuit/harness test for rear PTO solenoid valve (Y04) - SE tractors. • Circuit/harness test for rear PTO solenoid valve (Y04) - open operator’s station.

– – –1/1

TM4726 (01NOV03)

211-BCU-30

6020 to 6920S tractors 022204

PN=158

BCU Diagnostic Trouble Codes

BCU 302077.31 — INFORMATION FOR OPERATOR: Sit on Seat or Turn Off the Rear PTO

Diagnostic trouble code BCU 302077.31 is generated if the operator leaves his seat while the rear PTO is switched on.

211 BCU 31

NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000079 –19–03APR02–1/1

BCU 302080.31 — Differential Lock, Switch Error

Diagnostic trouble code BCU 302080.31 is saved when the basic control unit receives the output signal of the differential lock switch (differential lock ON) for longer than 15 seconds continuously directly subsequent to:

- Ignition ON. - De-activation by a brake switch. This indicates a short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000007A –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective differential lock switch S22. • Defective signal lead (short circuit at cable 522). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Differential Lock Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

TM4726 (01NOV03)

211-BCU-31

6020 to 6920S tractors 022204

PN=159

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BCU 32

– – –1/1

2 Check differential lock switch

OK: • Diagnosis completed.

Access address BCU 06 : BCU 06 –– Status, Differential Lock Switch (S22) —Specification Differential lock switch OFF:—Status ...................................................................... 0XXX Differential lock switch ON:—Status ........................................................................ 1XXX

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for differential lock switch (S22). • Circuit/harness test for differential lock switch (S22) - SE tractors. Circuit/harness test for differential lock switch (S22) - open operator’s station. NOT OK: GO TO: • Circuit/harness test for differential lock switch (S22). • Circuit/harness test for differential lock switch (S22) - SE tractors. Circuit/harness test for differential lock switch (S22) - open operator’s station.

– – –1/1

TM4726 (01NOV03)

211-BCU-32

6020 to 6920S tractors 022204

PN=160

BCU Diagnostic Trouble Codes

BCU 302082.31 — INFORMATION FOR OPERATOR: Actuate the Front-Wheel Drive Switch

Diagnostic trouble code BCU 302082.31 is generated if front-wheel drive is switched off by the HMS II and the front-wheel drive switch is still in the ON or AUTO positions.

211 BCU 33

NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,000007B –19–03APR02–1/1

BCU 302085.31 — Front Wheel Drive, Switch Error

Diagnostic trouble code BCU 302085.31 is saved when the basic control unit receives the two output signals of the front wheel drive switch (AUTO and BRAKE ASSIST at switch S05 or front-wheel drive ON and OFF at switch S63) simultaneously for longer than

3 seconds. This indicates a short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000007C –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective front-wheel drive switch S05 (tractors with HMS) or S63 (tractors without HMS). • Defective signal lead (short circuit at cable 557 or 511). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Front-Wheel Drive Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

TM4726 (01NOV03)

211-BCU-33

6020 to 6920S tractors 022204

PN=161

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BCU 34

– – –1/1

2 Check the front-wheel drive switch

OK: • Diagnosis completed.

Access address BCU 06 : BCU 06 –– Status, Front-Wheel Drive Switch (S05 or S63)—Specification Front-wheel drive switch set to AUTO (switch S05) or ON (switch S63):— Status ....................................................................................................................... XX10 Front-wheel drive switch set to ON (only switch S05):—Status ................................................................................................ XX00 Front-wheel drive switch set to OFF/Brake assist (switch S05) or OFF (switch S63):—Status ............................................................................................... XX01

• Type of error indicates a loose contact.

- On tractors without HMS II, GO TO: • Circuit/harness test for front-wheel drive switch (S63) (without HMS II). • Circuit/harness test for front-wheel drive switch (S63) - SE tractors. Circuit/harness test for front-wheel drive switch (S63) - open operator’s station. - On tractors with HMS II, GO TO: Circuit/harness test for front-wheel drive switch (S05) (with HMS II). NOT OK: - On tractors without HMS II, GO TO: • Circuit/harness test for front-wheel drive switch (S63) (without HMS II). • Circuit/harness test for front-wheel drive switch (S63) - SE tractors. Circuit/harness test for front-wheel drive switch (S63) - open operator’s station - On tractors with HMS II, GO TO: Circuit/harness test for front-wheel drive switch (S05) (with HMS II).

– – –1/1

TM4726 (01NOV03)

211-BCU-34

6020 to 6920S tractors 022204

PN=162

BCU Diagnostic Trouble Codes

BCU 302086.31 — Front-Wheel Drive Clutch Solenoid, Circuit Fault

BCU 302086.31 is saved if there is an open lead or a short circuit in the circuit of the solenoid valve when the solenoid valve is active (front wheel drive switched

off). The diagnostic trouble code triggers the alarm level: “Information”.

211 BCU 35

LX16167,000007D –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Wrong value in the input address for the configuration of the front wheel drive. Defective front wheel drive clutch solenoid (Y03). Defective line connections (cable 555 or 310). Defective/bad ground connection via ground point XGND45 to XGND1.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check input address for configuration of front-wheel drive

Access address BCU 22 :

OK: GO TO 3.

BCU 22 –– Configuration, Front-Wheel Drive—Specification Tractors without front-wheel drive:— Status .......................................................................................................................... XX0 Tractors with front-wheel drive:—Status ..................................................................... XX1

NOT OK: Correct the input.

– – –1/1

TM4726 (01NOV03)

211-BCU-35

6020 to 6920S tractors 022204

PN=163

BCU Diagnostic Trouble Codes 3 Check the front-wheel drive solenoid valve

211 BCU 36

Test Data for Front-Wheel Drive Clutch Solenoid Valve (Y03) —Specification Resistance check:—Solenoid resistance ....................................... 10 - 12 ohms at 20°C Voltage when front-wheel drive clutch is disengaged:—Voltage ........................................................................................... 12 volts Voltage when front-wheel drive clutch is engaged:—Voltage ................................................................................................... 0 volt Amperage check when front-wheel drive clutch is disengaged:—Amperage ............................... 1 - 1.2 amps at 20°C and 12-volt nominal voltage

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14. In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective

OK: Diagnosis completed. • Type of error indicates a loose contact. GO TO: • Circuit/harness test for front-wheel drive solenoid valve (Y03). • Circuit/harness test for front-wheel drive solenoid valve (Y03) - SE tractors. • Circuit/harness test for front-wheel drive solenoid valve (Y03) - open operator’s station. NOT OK: GO TO: • Circuit/harness test for front-wheel drive solenoid valve (Y03). • Circuit/harness test for front-wheel drive solenoid valve (Y03) - SE tractors. • Circuit/harness test for front-wheel drive solenoid valve (Y03) - open operator’s station.

– – –1/1

BCU 302087.31 — INFORMATION FOR OPERATOR: Tractor is Moving Although Handbrake is On

Diagnostic trouble code BCU 302087.31 is generated if the tractor moves despite the handbrake being on (wheel speed is registered). NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,000007E –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-36

6020 to 6920S tractors 022204

PN=164

BCU Diagnostic Trouble Codes

BCU 302088.31 — INFORMATION FOR OPERATOR: Handbrake is On and a Gear is Selected

211 BCU 37

Diagnostic trouble code BCU 302088.31 is generated if a gear is selected while the handbrake is on. NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,000007F –19–03APR02–1/1

BCU 302089.31 — INFORMATION FOR OPERATOR: Turn Off the Rear PTO Switch

Diagnostic trouble code BCU 302089.31 is generated if the rear PTO switch, PTO preselector switch or PTO remote control switch are already on when the ignition key is turned. NOTE: This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,0000080 –19–03APR02–1/1

BCU 302106.31 — Control Unit, Internal Error

Diagnostic trouble code BCU 302106.31 is saved when there is an error in the memory of the basic control unit. All values in the memory are replaced by

the factory default settings. This might change the functionality of the control unit. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000081 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-37

6020 to 6920S tractors 022204

PN=165

BCU Diagnostic Trouble Codes Diagnostics

211 BCU 38

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replacing the basic control unit (BCU).

– – –1/1

BCU 302120.31 — Front PTO Solenoid Valve, Circuit Fault

BCU 302120.31 is saved if there is an open lead or a short circuit in the circuit of the solenoid valve when the solenoid valve is active (front PTO switched on).

The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000082 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Wrong value in the input address for the configuration of the front PTO. Defective front PTO solenoid (Y01). Defective line connections (cable 607 or 310). Defective/bad ground connection (XGND9).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-BCU-38

6020 to 6920S tractors 022204

PN=166

BCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO 211 TO 2. BCU 39

– – –1/1

2 Check input address for configuration of front PTO

Access address BCU 27 :

OK: GO TO 3.

BCU 27 –– Configuration, Front PTO—Specification Tractors without front PTO:—Status ........................................................................... XX0 Tractors with front PTO:—Status ................................................................................ XX1

NOT OK: Correct the input.

– – –1/1

3 Check front PTO solenoid

Test Data for Front PTO Solenoid Valve (Y01) —Specification Resistance check:—Solenoid resistance ....................................... 10 - 12 ohms at 20°C Voltage when front PTO is disengaged:—Voltage .............................................................................................. 0 volt Voltage when front PTO is engaged:— Voltage .................................................................................................................. 12 volts Amperage check with front PTO engaged:—Amperage .................................................. 1 - 1.2 amps at 20°C and 12-volt nominal voltage

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14. In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO: • Circuit/harness test for front PTO solenoid valve (Y01). • Circuit/harness test for front PTO solenoid valve (Y01) - SE tractors. NOT OK: GO TO: • Circuit/harness test for front PTO solenoid valve (Y01). • Circuit/harness test for front PTO solenoid valve (Y01) - SE tractors.

– – –1/1

BCU 302122.31 — Air Brake Solenoid Valve, Circuit Fault

BCU 302122.31 is saved if there is an open lead or a short circuit in the circuit of the solenoid valve when

the solenoid valve is active. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000084 –19–01NOV02–1/1

TM4726 (01NOV03)

211-BCU-39

6020 to 6920S tractors 022204

PN=167

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 40

• • • •

Wrong value in the input address for the pilot function of the air brake. Defective air brake solenoid valve (Y31). Defective line connections (cable 917 or 310). Defective/bad ground connection (XGND46).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • Reference 260-20-060, Trailer Brake Valve, Description. • Reference 260-20-080, Description of the Air Brake System (with MFWD and Disc Brake).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check input address for air brake pilot function

Access address BCU 29 :

OK: GO TO 3.

BCU 29 –– Configuration of Air Brake Pilot Function —Specification Tractors with AutoPowr/IVT transmission:—Status .................................................................................................. 000 Tractor without air brakes:—Status ............................................................................. 000 Tractor with air brakes (50 km/h (31 mph) tractors only):—Status ....................................................................................... 001

NOT OK: Correct the input.

– – –1/1

TM4726 (01NOV03)

211-BCU-40

6020 to 6920S tractors 022204

PN=168

BCU Diagnostic Trouble Codes 3 Check the air brake solenoid valve

Specifications for air brake solenoid valve (Y31)—Specification Resistance check:—Solenoid resistance ....................................... 10 - 12 ohms at 20°C Voltage when solenoid valve is activated:—Voltage ............................................................................................... 12 volts Amperage check when solenoid valve is activated:—Amperage .................................................. 1 - 1.2 amps at 20°C and 12-volt nominal voltage

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14 . In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO: Circuit/harness test for air 211 brake solenoid valve BCU (Y31). 41 NOT OK: GO TO: Circuit/harness test for air brake solenoid valve (Y31). – – –1/1

BCU 302123.31 — Forward/Reverse Switch Signal Doesn’t Match Signal of Not-Neutral Switch

Diagnostic trouble code BCU 302123.31 is saved when the basic control unit receives an erroneous switch signal combination from the reverse drive lever. The diagnostic trouble code triggers the alarm level: “Information”. This diagnostic trouble code does not

necessarily have any real meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,0000085 –19–01NOV02–1/1

Diagnostics

NOTE: The following are possible causes: • This diagnostic trouble code may occur without there being any problem at the reverse drive lever (forward switch, reverse switch and not-neutral switch). For this reason, delete this diagnostic trouble code after starting the engine, then do an operational check. If this diagnostic trouble code re-appears after the operational check, this indicates a fault at the reverse drive lever (forward switch, reverse switch and not-neutral switch). • Defective reverse switch in the reverse drive lever (A47). • Defective not-neutral switch in the reverse drive lever (A47). • Defective forward switch in the reverse drive lever (A47). • Defective line connection between the reverse drive lever and the basic control unit (BCU). – Line for forward switch (cable 209, pin 15). – Line for reverse switch (cable 219, pin 43). – Line for not-neutral switch (cable 220, pin 20). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-BCU-41

6020 to 6920S tractors 022204

PN=169

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BCU 42

– – –1/1

2 Check signals from reverse drive lever to the basic control unit

Access address BCU 17 . BCU 17 –– Status, reverse drive lever switch (A47)—Specification Reverse drive lever in forward position:—Status ....................................................................................................... X110 Reverse drive lever in reverse position:—Status ....................................................................................................... X011 Reverse drive lever in neutral position:— Status ........................................................................................................................ X000

OK: Type of error indicates a loose contact (check the reverse drive lever circuit to the basic control unit): - GO TO: Circuit/harness test for forward switch.

- GO TO: Circuit/harness test for reverse switch.

- GO TO: Circuit/harness test for not-neutral switch.

NOT OK: GO TO 3

– – –1/1

3 Check reverse drive lever signals to transmission control unit

Access address EPC 07 . EPC 07 –– Status, not-neutral switch (A47) —Specification Reverse drive lever in forward position:—Status ............................................................................................. 101XXXXX Reverse drive lever in reverse position:—Status ............................................................................................. 011XXXXX Reverse drive lever in neutral position:— Status .............................................................................................................. 000XXXXX

OK: GO TO: Circuit/harness test for detent coil in reverse drive lever. NOT OK: - GO TO: Circuit/harness test for forward switch.

- GO TO: Circuit/harness test for reverse switch.

- GO TO: Circuit/harness test for not-neutral switch.

– – –1/1

TM4726 (01NOV03)

211-BCU-42

6020 to 6920S tractors 022204

PN=170

BCU Diagnostic Trouble Codes

BCU 302124.31 — Alternator Relay, Circuit Fault

Diagnostic trouble code BCU 302124.31 is saved if an open lead or short circuit exists in the detent coil circuit

of the relay. The diagnostic trouble code triggers the alarm level: “Information” .

211 BCU 43

LX16167,0000086 –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective relay for alternator K02/2. • Defective line connections (cable 336 or 310). • Defective/bad ground connection via ground point XGND44 to XGND5. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO: Circuit/harness test for alternator relay (K02/2).

– – –1/1

TM4726 (01NOV03)

211-BCU-43

6020 to 6920S tractors 022204

PN=171

BCU Diagnostic Trouble Codes

BCU 302131.31 — Fault in Turn Signal Circuit

211 BCU 44

Diagnostic trouble code BCU 302131.31 is saved if an open lead or short circuit exists in the turn signal

circuit. The diagnostic code triggers the alarm level: “Information”.

LX16167,0000087 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Turn signal lights H34, H35, H42 and/or H43 might be defective. • Defective line connection between the basic control unit and the turn signal lights. – Positive lead for left turn signal light (cable 125 and/or 126). – Positive lead for right turn signal light (cable 107 and/or 119). • Defective/bad ground connection from the turn signal lights: – XGND1 via ground point XGND45 (W08 — cab wiring harness). – XGND5 via ground point XGND44 (W08 — cab wiring harness). – XGND10 (W19 — cab roof wiring harness). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-44

6020 to 6920S tractors 022204

PN=172

BCU Diagnostic Trouble Codes 2 Checking the circuit of turn signal lights (H34, H35, H42 and H43)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-021, SE16E - Basic control unit (BCU) (hazard flasher and turn-signal lights) For component location and pin arrangement see: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 302132.31 — Hazard Warning Light Fuse F03/03 and/or F03/04 Defective

Diagnostic trouble code BCU 302132.31 is saved when the basic control unit does not detect a 12-volt signal at the signal input for fuse F03/03 and/or

F03/04. This indicates that there is an open lead or a short to ground in the fuse’s circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000088 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-45

6020 to 6920S tractors 022204

PN=173

211 BCU 45

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 46

• Defective fuse F03/03 and/or F03/04. • Defective line connection between the hazard warning light fuses and the basic control unit (cable 112 and/or 182). Additional references: •f Electrical information: Reference 210-15-001, General References - Summary.• Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check fuses of hazard warning lights

Access address BCU 12 :

OK: • Diagnosis completed.

BCU 12 –– Status, Hazard Warning Light Fuse F03/03 (Left) F03/04 (Right)— Specification If fuse F03/03 is OK:—Status .................................................................................. X1XX If fuse F03/04 is OK:—Status .................................................................................. XXX1

• Type of error indicates a loose contact. GO TO 3. NOT OK: Check fuse circuit, GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-46

6020 to 6920S tractors 022204

PN=174

BCU Diagnostic Trouble Codes 3 Check circuit of hazard warning light fuse F03/03 and F03/04

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-021, SE16E - BCU (Hazard Warning and Turn Signal Lights) For component location and pin arrangement see: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 302133.31 — Rear PTO Preselector, Switch Error

Diagnostic trouble code BCU 302133.31 is saved when the basic control unit receives an erroneous

signal combination from the switch. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,0000089 –19–01NOV02–1/1

TM4726 (01NOV03)

211-BCU-47

6020 to 6920S tractors 022204

PN=175

211 BCU 47

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 48

• • • •

Defective Defective Defective Defective

fuse F03/02. rear PTO preselector switch S45. positive lead (cable 973). signal lead (cable 535 or 536).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Rear PTO Preselector Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the rear PTO preselector switch

OK: • Diagnosis completed.

Access address BCU 08 : BCU 08 –– Status, rear PTO preselector switch (S45)—Specification Rear PTO preselector switch ON:— Status ....................................................................................................................... X10X Rear PTO preselector switch OFF:— Status ....................................................................................................................... X01X

• Type of error indicates a loose contact. GO TO: Circuit/harness test for rear PTO preselector switch (S45). NOT OK: GO TO: Circuit/harness test for rear PTO preselector switch (S45). – – –1/1

TM4726 (01NOV03)

211-BCU-48

6020 to 6920S tractors 022204

PN=176

BCU Diagnostic Trouble Codes

BCU 302134.31 — HMS Program Switch Defective

Diagnostic trouble code BCU 302134.31 is saved when the basic control unit receives an erroneous

signal combination from the switch. The diagnostic trouble code triggers the alarm level: “Information”.

211 BCU 49

LX16167,000008A –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective HMS program switch S100. • Defective signal lead (cable 551, 554 or 559). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Headland Management (HMS) Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-49

6020 to 6920S tractors 022204

PN=177

BCU Diagnostic Trouble Codes 2 Check HMS Program Switch

211 BCU 50

Access address BCU 15 :

OK: • Diagnosis completed.

BCU 15 –– Status, HMS Program Switch (S100)—Specification HMS program switch in neutral position:—Status ....................................................................................................... X101 HMS program switch in position for program 1:—Status ................................................................................................... X110 HMS program switch in position for program 2:—Status ................................................................................................... X011

• Type of error indicates a loose contact. GO TO: Circuit/harness test for HMS program switch (S100). NOT OK: GO TO: Circuit/harness test for HMS program switch (S100). – – –1/1

BCU 302135.31 — Rear PTO Remote Control, Switch Error Left

Diagnostic trouble code BCU 302135.31 is saved when the basic control unit receives an erroneous signal combination from the switch on the left fender.

The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000008B –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

fuse F03/02. rear PTO remote control switch S44 (left). positive lead (cable 973). signal lead (cable 528 or 547).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Rear PTO Preselector Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

TM4726 (01NOV03)

211-BCU-50

6020 to 6920S tractors 022204

PN=178

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. BCU 51

– – –1/1

2 Check Rear PTO Remote Control Switch (Left)

Access address BCU 09 :

OK: • Diagnosis completed.

BCU 09 –– Status, Rear PTO Remote Switch on Left Fender (S44)—Specification Rear PTO remote control not actuated:—Status ..................................................................................................... 01XX Rear PTO remote control actuated:— Status ....................................................................................................................... 10XX

• Type of error indicates a loose contact. GO TO: Circuit/harness test for rear PTO remote control. NOT OK: GO TO: Circuit/harness test for rear PTO remote control.

– – –1/1

BCU 302136.31 — Rear PTO Remote Control, Switch Error Right

Diagnostic trouble code BCU 302136.31 is saved when the basic control unit receives an erroneous signal combination from the switch on the right fender.

The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000008C –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-51

6020 to 6920S tractors 022204

PN=179

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 52

• • • •

Defective Defective Defective Defective

fuse F03/02. rear PTO remote control switch (right). positive lead (cable 973). signal leads.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions). • “Replacing the Rear PTO Remote Control Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check rear PTO remote control switch (right)

Access address BCU 09 :

OK: • Diagnosis completed.

BCU 09 –– Status, Rear PTO Remote Switch on Right Fender—Specification Rear PTO remote control not actuated:—Status ..................................................................................................... XX01 Rear PTO remote control actuated:— Status ....................................................................................................................... XX10

• Type of error indicates a loose contact. GO TO 3. NOT OK: Check switch circuit, GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-52

6020 to 6920S tractors 022204

PN=180

BCU Diagnostic Trouble Codes 3 Check circuit of right rear PTO remote control switch

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-017, SE16A-Basic Control unit (BCU) (Rear PTO and External Control). For component location and pin arrangement see: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 302139.31 — INFORMATION FOR OPERATOR: Rear PTO can now be Switched On at the Remote Control Switch

Diagnostic trouble code BCU 302139.31 is generated if the PTO preselector switch is actuated and the PTO can be switched on at the PTO remote control switch NOTE: . This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,000008D –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-53

6020 to 6920S tractors 022204

PN=181

211 BCU 53

BCU Diagnostic Trouble Codes

BCU 302240.31 — Control Unit Connected to Wrong Wiring Harness Connector

211 BCU 54

Diagnostic trouble code BCU 302240.31 is saved when the basic control unit detects an erroneous signal in the circuit of the control unit identification. An erroneous test signal is detected during the initialization of the control unit via the wiring harness bridge (cable 544) from pin 37 (connector X483/2) to

pin 25 (connector X483/1). This diagnostic trouble code does not necessarily have any real meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,000008E –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • This diagnostic trouble code may occur without there being any problem at the wiring harness connector. For this reason, delete this diagnostic trouble code after starting the engine, then do an operational check. If this diagnostic trouble code re-appears after the operational check, this indicates a wrongly connected control unit. • Wrong control unit connected to BCU connector X483/1 and X483/2. • Open circuit (cable 544). • Defective basic control unit (BCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Is the correct control unit connected to connector X483/1 and X483/2?.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: If the correct control unit is connected, GO TO 2. NOT OK: Connect the correct control unit and test its functionality.

– – –1/1

TM4726 (01NOV03)

211-BCU-54

6020 to 6920S tractors 022204

PN=182

BCU Diagnostic Trouble Codes 2 Check control unit identification circuit (cable 544)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm). For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303027.31 — Calibration of Hitch Control Unit Not Successful

Diagnostic trouble code BCU 303027.31 is saved if an erroneous signal is detected from one or several senders during the hitch calibration. If the problem is

caused by one of the senders, an additional, sender-specific diagnostic trouble code is saved.

LX16167,000008F –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-55

6020 to 6920S tractors 022204

PN=183

211 BCU 55

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 56

• Defective hitch sender. Additional references: • General Hitch Information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control). • Reference 245-05-003, Description of Diagnostic Trouble Codes.

– – –1/1

1 Preliminary test

Determine whether additional diagnostic trouble codes (priority diagnostic codes) that indicate a problem at a hitch sender have been saved.

OK: Process the priority diagnostic codes. NOT OK: No priority diagnostic codes saved, GO TO 2. – – –1/1

2 Test the functionality of the hitch

For information on performing an operational check, refer to: • Reference 270-10-020 , Hitch Control - Operational Check. • Reference 270-10-030, Hitch Remote Control - Operational Check.

OK: If no problem can be detected during the operational check: Repeat the hitch calibration, see Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control. NOT OK: Search the error memory for diagnostic trouble codes and repair if required.

– – –1/1

BCU 303028.31 — Hitch Control Unit Not Calibrated

Diagnostic trouble code BCU 303028.31 is saved, if the previous hitch calibration was not saved or the

hitch function of a new basic control unit has not been calibrated yet.

LX16167,0000090 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-56

6020 to 6920S tractors 022204

PN=184

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • The hitch function of the basic control unit was not performed yet. • The calibration of the hitch function was prematurely aborted. • The calibration of the hitch function was not saved.

211 BCU 57

Additional references: • General Hitch Information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control). • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 270-10-020, Hitch Control - Operational Check.

– – –1/1

1 Preliminary test

Determine whether additional diagnostic trouble codes (priority diagnostic codes) that indicate a problem at the basic control unit have been saved.

OK: Process the priority diagnostic codes. NOT OK: No priority diagnostic codes saved, GO TO 2. – – –1/1

2 Perform the hitch calibration

Refer to Reference 245-BCU-002 , Calibration and Input Addresses, Hitch Control.

OK: Diagnosis completed. NOT OK: Calibration can not be saved (with instrument panel and performance monitor): • Search the error memory for diagnostic trouble codes and repair if required. • Check CAN BUS connection of Basic Control Unit. – – –1/1

TM4726 (01NOV03)

211-BCU-57

6020 to 6920S tractors 022204

PN=185

BCU Diagnostic Trouble Codes

BCU 303037.03 — 5-Volt Supply Voltage Too High

211 BCU 58

Diagnostic trouble code BCU 303037.03 is saved if a voltage of more than 5.25 volts is measured at the voltage supply of the 5-volt components (hitch

feedback unit, position sensor and draft senders). This indicates a short to the power supply (battery voltage) in the circuit.

LX16167,0000091 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Positive lead of the 5-volt power supply defective. – Short circuit at cable 873. • Defective components (potentiometer or sender) in the 5-volt power supply circuit. • Internal problem in the basic control unit. Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-58

6020 to 6920S tractors 022204

PN=186

BCU Diagnostic Trouble Codes 2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

• Type of error indicates a loose contact. GO TO 3. NOT OK: Check switch circuit, GO TO 3.

– – –1/1

3 Checking the power supply circuit of the 5-volt components

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-016, SE15 Electronic Hitch Control Unit. For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303037.04 — 5-Volt Supply Voltage Too Low

Diagnostic trouble code BCU 303037.04 is saved when the voltage measured at the positive lead of the voltage supply to the 5-volt components (hitch

feedback unit, position sensor and draft senders) is below 4.75 volts. This indicates that the circuit is open or shorted to ground.

LX16167,0000092 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-59

6020 to 6920S tractors 022204

PN=187

211 BCU 59

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 60

• Positive lead of the 5-volt power supply defective. – Short to ground at cable 873. • Defective ground lead (cable 531). • Defective components (potentiometer or sender) in the 5-volt power supply circuit. • Internal problem in the basic control unit. Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

• Type of error indicates a loose contact. GO TO 3. NOT OK: Check switch circuit, GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-60

6020 to 6920S tractors 022204

PN=188

BCU Diagnostic Trouble Codes 3 Checking the power supply circuit of the 5-volt components

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-016, SE15 Electronic Hitch Control Unit. For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303041.02 — Stepper Motor Coil 1, Open Lead

Diagnostic trouble code BCU 303041.02 is saved when no impulses are received from the stepper motor circuit (coil 1). This indicates that the stepper motor’s circuit is open. This diagnostic trouble code does not necessarily have any real meaning. It is often stored

by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,0000093 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-61

6020 to 6920S tractors 022204

PN=189

211 BCU 61

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 62

• This diagnostic trouble code may occur without there being any problem at the coil. For this reason, delete this diagnostic trouble code after starting the engine, then do an operational check. If this diagnostic trouble code re-appears after the operational check, this indicates an open line or a defective coil. • Defective line connection between the stepper motor and the basic control unit (cable 858 and 859). • Defective stepper motor (M08). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Perform a visual inspection of the stepper motor (M08) and the stepper motor connector X92 (W30). ❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: GO TO 2. NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Checking the stepper motor

Disconnect stepper motor connector X92 (W30). To test the stepper motor for shorted or open circuit, check continuity between stepper motor terminals: Test data for stepper motor (M08)—Specification Between pin A (cable 859 / PH1+) and pin B (cable 858 / PH1-):—Resistance ...................................................... 1.0 - 2.0 ohms Between pin C (cable 855 / PH2+) and pin D (cable 854 / PH2-):—Resistance...................................................... 1.0 - 2.0 ohms

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO 3. . NOT OK: Replace the stepper motor and calibrate the hitch function of the BCU (Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-62

6020 to 6920S tractors 022204

PN=190

BCU Diagnostic Trouble Codes 3 Check circuit of stepper motor (M08)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-016, SE15 Electronic Hitch Control Unit. For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303042.02 — Stepper Motor Coil 2, Open Lead

Diagnostic trouble code BCU 303042.02 is saved when no impulses are received from the stepper motor circuit (coil 2). This indicates that the stepper motor’s circuit is open. This diagnostic trouble code does not necessarily have any real meaning. It is often stored

by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,0000094 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-63

6020 to 6920S tractors 022204

PN=191

211 BCU 63

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 64

• This diagnostic trouble code may occur without there being any problem at the coil. For this reason, delete this diagnostic trouble code after starting the engine, then do an operational check. If this diagnostic trouble code re-appears after the operational check, this indicates an open line or a defective coil. • Defective line connection between the stepper motor and the basic control unit (cable 854 and 855). • Defective stepper motor (M08). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Perform a visual inspection of the stepper motor (M08) and the stepper motor connector X92 (W30). ❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: GO TO 2. NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Checking the stepper motor

Disconnect stepper motor connector X92 (W30). To test the stepper motor for shorted or open circuit, check continuity between stepper motor terminals: Test data for stepper motor (M08)—Specification Between pin A (cable 859 / PH1+) and pin B (cable 858 / PH1-):—Resistance ...................................................... 1.0 - 2.0 ohms Between pin C (cable 855 / PH2+) and pin D (cable 854 / PH2-):—Resistance...................................................... 1.0 - 2.0 ohms

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO 3. NOT OK: Replace the stepper motor and calibrate the hitch function of the BCU (Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-64

6020 to 6920S tractors 022204

PN=192

BCU Diagnostic Trouble Codes 3 Check circuit of stepper motor (M08)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-016, SE15 Electronic Hitch Control Unit. For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303043.02 — Stepper Motor Coil 1, Circuit Fault

Diagnostic trouble code BCU 303043.02 is saved when invalid impulses are received from the stepper motor circuit (coil 1). This indicates a short circuit in

the stepper motor circuit, either within the coil, to the supply voltage (battery voltage), or to ground.

LX16167,0000095 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-65

6020 to 6920S tractors 022204

PN=193

211 BCU 65

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 66

• Defective line connection between the stepper motor and the basic control unit (cable 858 and 859). – Short or ground. • Defective stepper motor (M08). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Perform a visual inspection of the stepper motor (M08) and the stepper motor connector X92 (W30). ❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: GO TO 2. NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Checking the stepper motor

Disconnect stepper motor connector X92 (W30). To test the stepper motor for shorted or open circuit, check continuity between stepper motor terminals: Test data for stepper motor (M08)—Specification Between pin A (cable 859 / PH1+) and pin B (cable 858 / PH1-):—Resistance ...................................................... 1.0 - 2.0 ohms Between pin C (cable 855 / PH2+) and pin D (cable 854 / PH2-):—Resistance...................................................... 1.0 - 2.0 ohms

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO 3. NOT OK: Replace the stepper motor and calibrate the hitch function of the BCU (Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-66

6020 to 6920S tractors 022204

PN=194

BCU Diagnostic Trouble Codes 3 Check circuit of stepper motor (M08)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-016, SE15 Electronic Hitch Control Unit. For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303044.02 — Stepper Motor Coil 2, Circuit Fault

Diagnostic trouble code BCU 303044.02 is saved when invalid impulses are received from the stepper motor circuit (coil 2). This indicates a short circuit in

the stepper motor circuit, either within the coil, to the supply voltage (battery voltage), or to ground.

LX16167,0000096 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-67

6020 to 6920S tractors 022204

PN=195

211 BCU 67

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 68

• Defective line connection between the stepper motor and the basic control unit (cable 854 and 855). – Short or ground. • Defective stepper motor (M08). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Perform a visual inspection of the stepper motor (M08) and the stepper motor connector X92 (W30). ❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: GO TO 2. NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Checking the stepper motor

Disconnect stepper motor connector X92 (W30). To test the stepper motor for shorted or open circuit, check continuity between stepper motor terminals: Test data for stepper motor (M08)—Specification Between pin A (cable 859 / PH1+) and pin B (cable 858 / PH1-):—Resistance ...................................................... 1.0 - 2.0 ohms Between pin C (cable 855 / PH2+) and pin D (cable 854 / PH2-):—Resistance...................................................... 1.0 - 2.0 ohms

OK: • Diagnosis completed. • Type of error indicates a loose contact. GO TO 3. NOT OK: Replace the stepper motor and calibrate the hitch function of the BCU (Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-68

6020 to 6920S tractors 022204

PN=196

BCU Diagnostic Trouble Codes 3 Check circuit of stepper motor (M08)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-016, SE15 Electronic Hitch Control Unit. For component location and pin arrangement see: • Reference 240-26-004 , Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BCU 303045.04 — System Voltage Too Low

Diagnostic trouble code BCU 303045.04 is saved if the operating voltage of the basic control unit (ELX battery voltage) is less than 8.06 volts. The diagnostic trouble code triggers the alarm level: “CAUTION”.

Additional references:

NOTE: The following are possible causes:

• Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

• • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connections.

• Electrical information: Reference 210-15-001, General References - Summary.

Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

Perform the procedure for diagnostic trouble code BCU 000168.18 –– System Voltage Too Low (Idle Until 1500 rpm) .

LX16167,0000097 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-69

6020 to 6920S tractors 022204

PN=197

211 BCU 69

BCU Diagnostic Trouble Codes

BCU 303047.03 — System Voltage Too High

211 BCU 70

Diagnostic trouble code BCU 303047.03 is saved if the operating voltage of the basic control unit (ELX battery voltage) is more than 17.92 volts. The diagnostic trouble code triggers the alarm level: “CAUTION”.

Additional references:

NOTE: The following are possible causes:

• Reference 245-BCU-200, Operation of the Basic Control Unit (Basic Functions).

• Defective battery. • Defective alternator.

• Electrical information: Reference 210-15-001, General References - Summary.

Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

Perform the procedure for diagnostic trouble code BCU 000168.16 –– System Voltage Too High (Engine Running) .

LX16167,0000098 –19–03APR02–1/1

BCU 303049.02 — Conflicting Signals from Quick Raise/Lower Switch and Remote Switch

Diagnostic trouble code BCU 303049.02 is stored if the rocker switch for quick raise/lower and the remote

switch are actuated simultaneously. This indicates a short in the signal leads.

LX16167,0000099 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective rapid raise/lower rocker switch (S24, S24/2 with Command Arm). • Defective left (S68) or right (S23) remote control switch. • Defective line connection between the rocker switch and the basic control unit (cable 834 and 839). – Short circuit. Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control). • “Replacing the Rear PTO Remote Control Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

TM4726 (01NOV03)

211-BCU-70

6020 to 6920S tractors 022204

PN=198

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. BCU 71

– – –1/1

2 Checking the rocker switch and remote switch

OK: • Diagnosis completed.

Access address BCU 103 : BCU 103 –– Voltage, Rapid Raise/Lower Rocker Switch (S24)—Specification Switch (S24) in center (OFF) position:— Voltage .................................................................... 6 volts (with a 12-volt power supply) Switch (S24) in RAISE position:— Maximum voltage ............................................................................................... 10.5 volts Switch (S24) in LOWER position:— Minimum voltage ...................................................................................................... 1 volt

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for rapid raise switch (S24).

Access address BCU 112: BCU 112 –– Checking the RAISE Signal from Remote Switch (S68)—Specification Switch (S68) in center (OFF) position:— Status .......................................................................................................................... X01 Switch (S68) in RAISE position:—Status .................................................................... X00 Access address BCU 114: BCU 114 –– Checking the LOWER Signal from Remote Switch (S68)— Specification Switch (S68) in center (OFF) position:— Status .......................................................................................................................... X01 Switch (S68) in LOWER position:— Status .......................................................................................................................... X00 Access address BCU 113: BCU 113 –– Checking the RAISE Signal from Remote Switch (S23)—Specification Switch (S23) in center (OFF) position:— Status .......................................................................................................................... X01 Switch (S23) in RAISE position:—Status .................................................................... X00 Access address BCU 115: BCU 113 –– Checking the LOWER Signal from Remote Switch (S23)— Specification Switch (S23) in center (OFF) position:— Status .......................................................................................................................... X01 Switch (S23) in LOWER position:— Status .......................................................................................................................... X00

• Circuit/harness test for rapid raise switch (S24) SE tractors. • Circuit/harness test for rapid raise switch (S24) open operator’s station . On tractors with Command Arm: GO TO: Circuit/harness test for rapid raise switch (S24_A).

NOT OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for rapid raise switch (S24) . • Circuit/harness test for rapid raise switch (S24) SE tractors. • Circuit/harness test for rapid raise switch (S24) open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for rapid raise switch (S24_A).

– – –1/1

TM4726 (01NOV03)

211-BCU-71

6020 to 6920S tractors 022204

PN=199

BCU Diagnostic Trouble Codes

BCU 303049.03 — Rapid Raise/Lower Rocker Switch, Signal Voltage Too High

211 BCU 72

Diagnostic trouble code BCU 303049.03 is saved when the basic control unit detects a voltage over 10.5 volts at the signal input of the rapid raise/lower rocker

switch during operation or calibration. This indicates a short circuit to the supply voltage (battery voltage) in the switch circuit.

LX16167,000009A –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective rapid raise/lower rocker switch (S24, S24/2 with Command Arm). • Defective line connection between the rocker switch and the basic control unit (cable 834 and 839). – Short circuit. Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-72

6020 to 6920S tractors 022204

PN=200

BCU Diagnostic Trouble Codes 2 Check rocker switch

OK: • Diagnosis completed.

Access address BCU 103 : BCU 103 –– Voltage, Rapid Raise/Lower Rocker Switch (S24)—Specification Switch (S24) in center (OFF) position:— Voltage .................................................................... 6 volts (with a 12-volt power supply) Switch (S24) in RAISE position:— Maximum voltage ............................................................................................... 10.5 volts Switch (S24) in LOWER position:— Minimum voltage ...................................................................................................... 1 volt

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for rapid raise switch (S24). • Circuit/harness test for rapid raise switch (S24) SE tractors. • Circuit/harness test for rapid raise switch (S24) open operator’s station . - On tractors with Command Arm: GO TO: Circuit/harness test for rapid raise switch (S24_A). NOT OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for rapid raise switch (S24) . • Circuit/harness test for rapid raise switch (S24) SE tractors. • Circuit/harness test for rapid raise switch (S24) open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for rapid raise switch (S24_A). – – –1/1

BCU 303049.04 — Rapid Raise/Lower Rocker Switch, Signal Voltage Too Low

Diagnostic trouble code BCU 303049.04 is saved when the basic control unit detects a voltage below 1 volt at the signal input of the rapid raise/lower rocker

switch during operation or calibration. This indicates that the switch’s circuit is open.

LX16167,000009B –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-73

6020 to 6920S tractors 022204

PN=201

211 BCU 73

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 74

• Defective rapid raise/lower rocker switch (S24, S24/2 with Command Arm). • Defective line connection between the rocker switch and the basic control unit (cable 834 and 839 or positive lead 838). – Open circuit. – Grounded circuit. Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-74

6020 to 6920S tractors 022204

PN=202

BCU Diagnostic Trouble Codes 2 Check rocker switch

OK: • Diagnosis completed.

Access address BCU 103 : BCU 103 –– Voltage, Rapid Raise/Lower Rocker Switch (S24)—Specification Switch (S24) in center (OFF) position:— Voltage .................................................................... 6 volts (with a 12-volt power supply) Switch (S24) in RAISE position:— Maximum voltage ............................................................................................... 10.5 volts Switch (S24) in LOWER position:— Minimum voltage ...................................................................................................... 1 volt

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for rapid raise switch (S24). • Circuit/harness test for rapid raise switch (S24) SE tractors. • Circuit/harness test for rapid raise switch (S24) open operator’s station . - On tractors with Command Arm: GO TO: Circuit/harness test for rapid raise switch (S24_A). NOT OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for rapid raise switch (S24) . • Circuit/harness test for rapid raise switch (S24) SE tractors. • Circuit/harness test for rapid raise switch (S24) open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for rapid raise switch (S24_A). – – –1/1

BCU 303051.03 — Left Draft Sender, Signal Voltage Too High

Diagnostic trouble code BCU 303051.03 is saved when the basic control unit measures a voltage over

4.75 volts at the signal input of the left draft sender. This indicates that the draft sensor’s circuit is shorted.

LX16167,000009C –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-75

6020 to 6920S tractors 022204

PN=203

211 BCU 75

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 76

• Left draft sender (B20) is set wrongly or misadjusted. • Defective draft sender B20. • Defective line connection between draft sender (B20) and basic control unit: – Positive lead (cable 873). – Signal lead (cable 885). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check voltage supply of draft sender

Access address BCU 116 :

OK: GO TO 3.

BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-76

6020 to 6920S tractors 022204

PN=204

BCU Diagnostic Trouble Codes 3 Check left draft sender

OK: • Diagnosis completed.

3.1 IMPORTANT: Check signal voltage of l.h. draft sender (not under load). There should not be any draft links attached to the draft sensor’s bearing pin. Access address BCU 104 : BCU 104 - Left Draft Sender (B20) Output Voltage —Specification Draft sender not under load:—Voltage ................................................... 2.45 - 2.55 volts

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for l.h. draft sensor (B20). • Circuit/harness test for l.h. draft sensor (B20) SE tractors. • Circuit/harness test for l.h. draft sensor (B20) open operator’s station . NOT OK: GO TO 3.2

3.2

OK: Diagnosis completed.

For information on setting the draft sender, see Reference 270-15-151 , Hitch — Checking and Adjusting Draft Senders (6020 to 6620).

NOT OK: GO TO: • Circuit/harness test for l.h. draft sensor (B20). • Circuit/harness test for l.h. draft sensor (B20) SE tractors. • Circuit/harness test for l.h. draft sensor (B20) open operator’s station .

– – –1/1

BCU 303051.04 — Left Draft Sender, Signal Voltage Too Low

Diagnostic trouble code BCU 303051.04 is saved when the basic control unit measures a voltage below

0.25 volts at the signal input of the left draft sender. This indicates that the draft sensor’s circuit is open.

LX16167,000009D –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-77

6020 to 6920S tractors 022204

PN=205

211 BCU 77

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 78

• Left draft sender (B20) is set wrongly or misadjusted. • Defective draft sender B20. • Defective line connection between draft sender (B20) and basic control unit: – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 885). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check voltage supply of draft sender

Access address BCU 116 :

OK: GO TO 3.

BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-78

6020 to 6920S tractors 022204

PN=206

BCU Diagnostic Trouble Codes 3 Check left draft sender

OK: • Diagnosis completed.

3.1 IMPORTANT: Check signal voltage of l.h. draft sender (not under load). There should not be any draft links attached to the draft sensor’s bearing pin. Access address BCU 104 : BCU 104 - Left Draft Sender (B20) Output Voltage —Specification Draft sender not under load:—Voltage ................................................... 2.45 - 2.55 volts

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for l.h. draft sensor (B20). • Circuit/harness test for l.h. draft sensor (B20) SE tractors. • Circuit/harness test for l.h. draft sensor (B20) open operator’s station . NOT OK: • No display in address BCU 104: Check the 5-volt power supply at connector X89. • Display not within specification: GO TO 3.2

3.2

OK: Diagnosis completed.

For information on setting the draft sender, see Reference 270-15-151 , Hitch — Checking and Adjusting Draft Senders (6020 to 6620).

NOT OK: Adjustment not possible: GO TO: • Circuit/harness test for l.h. draft sensor (B20). • Circuit/harness test for l.h. draft sensor (B20) SE tractors. • Circuit/harness test for l.h. draft sensor (B20) open operator’s station .

– – –1/1

BCU 303052.03 — Right Draft Sender, Signal Voltage Too High

Diagnostic trouble code BCU 303052.03 is saved when the basic control unit measures a voltage over

4.75 volts at the signal input of the right draft sender. This indicates that the draft sensor’s circuit is shorted.

LX16167,000009E –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-79

6020 to 6920S tractors 022204

PN=207

211 BCU 79

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 80

• Right draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S) is set wrongly or misadjusted. • Defective draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S). • Defective line connection between draft sender or potentiometer and basic control unit: – Positive lead (cable 873). – Signal lead (cable 884). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check voltage supply of draft sender or draft potentiometer

Access address BCU 116 :

OK: GO TO 3.

BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-80

6020 to 6920S tractors 022204

PN=208

BCU Diagnostic Trouble Codes 3

Check draft sender or draft potentiometer

OK: • Diagnosis completed.

3.1 IMPORTANT: Check signal voltage of r.h. draft sender B20 not under load. There should not be any draft links attached to the draft sensor’s bearing pin. Access address BCU 105 : BCU 105 - Right Draft Sender (B20)/Draft Potentiometer (B41) Output Voltage— Specification Right draft sender B20 not under load:— Voltage .................................................................................................... 2.45 - 2.55 volts Draft potentiometer B41:—Voltage ......................................................... 2.45 - 2.55 volts

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for r.h. draft sensor (B19). • Circuit/harness test for r.h. draft sensor (B19) SE tractors. • Circuit/harness test for r.h. draft sensor (B19) open operator’s station . NOT OK: GO TO 3.2

3.2

OK: Diagnosis completed.

For information on adjusting the draft sender/draft potentiometer, refer to: • Reference 270-15-151, Hitch — Checking and Adjusting Draft Senders (6020 to 6620). • Reference 270-15-152, Hitch — Checking and Adjusting Draft Potentiometer (6820 6920S)

NOT OK: Adjustment not possible: GO TO: • Circuit/harness test for r.h. draft sensor (B19). • Circuit/harness test for r.h. draft sensor (B19) SE tractors. • Circuit/harness test for r.h. draft sensor (B19) open operator’s station .

– – –1/1

BCU 303052.04 — Right Draft Sender, Signal Voltage Too Low

Diagnostic trouble code BCU 303052.04 is saved when the basic control unit measures a voltage below

0.25 volts at the signal input of the right draft sender. This indicates that the draft sensor’s circuit is open.

LX16167,000009F –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-81

6020 to 6920S tractors 022204

PN=209

211 BCU 81

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 82

• Right draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S) is set wrongly or misadjusted. • Defective draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S). • Defective line connection between draft sender or potentiometer and basic control unit: – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 884). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check voltage supply of draft sender or draft potentiometer

Access address BCU 116 :

OK: GO TO 3.

BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-82

6020 to 6920S tractors 022204

PN=210

BCU Diagnostic Trouble Codes 3

Check draft sender or draft potentiometer

OK: • Diagnosis completed.

3.1 IMPORTANT: Check signal voltage of r.h. draft sender B20 not under load. There should not be any draft links attached to the draft sensor’s bearing pin. Access address BCU 105 : BCU 105 - Right Draft Sender (B19)/Draft Potentiometer (B41) Output Voltage— Specification Right draft sender B19 not under load:— Voltage .................................................................................................... 2.45 - 2.55 volts Draft potentiometer B41:—Voltage ......................................................... 2.45 - 2.55 volts

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for r.h. draft sensor (B19). • Circuit/harness test for r.h. draft sensor (B19) SE tractors. • Circuit/harness test for r.h. draft sensor (B19) open operator’s station . NOT OK: • No display in address BCU 105: Check the 5-volt power supply at pin X90 or X71. • Display not within specification: Check draft sender circuit, GO TO 3.2

3.2

OK: Diagnosis completed.

For information on adjusting the draft sender/draft potentiometer, refer to: • Reference 270-15-151, Hitch — Checking and Adjusting Draft Senders (6020 to 6620). • Reference 270-15-152, Hitch — Checking and Adjusting Draft Potentiometer (6820 6920S)

NOT OK: Adjustment not possible: GO TO: • Circuit/harness test for r.h. draft sensor (B19). • Circuit/harness test for r.h. draft sensor (B19) SE tractors. • Circuit/harness test for r.h. draft sensor (B19) open operator’s station .

– – –1/1

BCU 303053.03 — Sensitivity Potentiometer, Signal Voltage Too High

Diagnostic trouble code BCU 303053.03 is saved when the basic control unit measures a voltage over

4.75 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is shorted.

LX16167,00000A0 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-83

6020 to 6920S tractors 022204

PN=211

211 BCU 83

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 84

• Defective sensitivity potentiometer (B26, B97 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (short circuit): – Positive lead (cable 873). – Signal lead (cable 869). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check sensitivity potentiometer

OK: • Diagnosis completed.

Access address BCU 106 : BCU 106 –– Voltage, Sensitivity Potentiometer (B26, B97 with Command Arm)— Specification Potentiometer turned full counter-clockwise:—Voltage ................................................. between 0.25 and 1.5 volts Potentiometer turned full clockwise:— Voltage .................................................................................. between 3.5 and 4.75 volts

NOTE: Potentiometer full clockwise voltage must be at least 2 volts more than the full counterclockwise voltage. There should be no beep or sudden change in voltage while the control is being moved.

- On tractors without Command Arm: GO TO: • Circuit/harness test for sensitivity potentiometer. • Circuit/harness test for sensitivity potentiometer SE tractors. • Circuit/harness test for sensitivity potentiometer open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for sensitivity potentiometer. NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-84

6020 to 6920S tractors 022204

PN=212

BCU Diagnostic Trouble Codes 3 Check voltage supply of sensitivity potentiometer

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for sensitivity potentiometer . • Circuit/harness test for sensitivity potentiometer 211 SE tractors. BCU • Circuit/harness test for 85 sensitivity potentiometer open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for sensitivity potentiometer. NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU). – – –1/1

BCU 303053.04 — Sensitivity Potentiometer, Signal Voltage Too Low

Diagnostic trouble code BCU 303053.04 is saved when the basic control unit measures a voltage below

0.25 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is open.

LX16167,00000A1 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective sensitivity potentiometer (B26, B97 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (open or grounded circuit): – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 869). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-85

6020 to 6920S tractors 022204

PN=213

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BCU 86

– – –1/1

2 Check sensitivity potentiometer

OK: • Diagnosis completed.

Access address BCU 106 : BCU 106 –– Voltage, Sensitivity Potentiometer (B26, B97 with Command Arm)— Specification Potentiometer turned full counter-clockwise:—Voltage ................................................. between 0.25 and 1.5 volts Potentiometer turned full clockwise:— Voltage .................................................................................. between 3.5 and 4.75 volts

NOTE: Potentiometer full clockwise voltage must be at least 2 volts more than the full counterclockwise voltage. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for sensitivity potentiometer. • Circuit/harness test for sensitivity potentiometer SE tractors. • Circuit/harness test for sensitivity potentiometer open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for sensitivity potentiometer. NOT OK: • No display in address BCU 106: GO TO 3. - On tractors without Command Arm: GO TO: • Circuit/harness test for sensitivity potentiometer . • Circuit/harness test for sensitivity potentiometer SE tractors. • Circuit/harness test for sensitivity potentiometer open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for sensitivity potentiometer.

– – –1/1

TM4726 (01NOV03)

211-BCU-86

6020 to 6920S tractors 022204

PN=214

BCU Diagnostic Trouble Codes 3 Check voltage supply of sensitivity potentiometer

Access address BCU 116 :

OK: Check the 5-volt power supply at connector X14/2 (X469 with Command Arm).

BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

– – –1/1

BCU 303054.03 — Hitch Height Control Potentiometer, Signal Voltage Too High

Diagnostic trouble code BCU 303054.03 is saved when the basic control unit measures a voltage over

4.75 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is shorted.

LX16167,00000A2 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective hitch height control potentiometer (B27, B98 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (short circuit): – Positive lead (cable 873). – Signal lead (cable 877). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-87

6020 to 6920S tractors 022204

PN=215

211 BCU 87

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BCU 88

– – –1/1

2 Check hitch height control potentiometer

OK: • Diagnosis completed.

Access address BCU 107 : BCU 107 –– Voltage, Hitch Height Control Potentiometer (B27, B98 with Command Arm)—Specification Control in transport position (locked):— Voltage .................................................................................. between 0.25 and 1.5 volts Control all the way forward (lower position):—Voltage ................................................................ between 3.0 and 4.75 volts

NOTE: Voltage in lower position must be at least 2 volts higher than in transport position. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for hitch-height potentiometer. • Circuit/harness test for hitch-height potentiometer - SE tractors. • Circuit/harness test for hitch-height potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for hitch-height potentiometer. NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-88

6020 to 6920S tractors 022204

PN=216

BCU Diagnostic Trouble Codes 3 Check voltage supply of hitch height control potentiometer

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for hitch-height potentiometer . • Circuit/harness test for 211 hitch-height potentiometer BCU - SE tractors. 89 • Circuit/harness test for hitch-height potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for hitch-height potentiometer. NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU).

– – –1/1

BCU 303054.04 — Hitch Height Control Potentiometer, Signal Voltage Too Low

Diagnostic trouble code BCU 303054.04 is saved when the basic control unit measures a voltage below

0.25 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is open.

LX16167,00000A3 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-89

6020 to 6920S tractors 022204

PN=217

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 90

• Defective hitch height control potentiometer (B27, B98 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (open or grounded circuit): – Positive lead (cable 873). – Ground lead (cable 871/531). – Signal lead (cable 877). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-90

6020 to 6920S tractors 022204

PN=218

BCU Diagnostic Trouble Codes 2 Check hitch height control potentiometer

OK: • Diagnosis completed.

Access address BCU 107 : BCU 107 –– Voltage, Hitch Height Control Potentiometer (B27, B98 with Command Arm)—Specification Control in transport position (locked):— Voltage .................................................................................. between 0.25 and 1.5 volts Control all the way forward (lower position):—Voltage ................................................................ between 3.0 and 4.75 volts

NOTE: Voltage in lower position must be at least 2 volts higher than in transport position. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact. 211 - On tractors without BCU Command Arm, GO TO: 91 • Circuit/harness test for hitch-height potentiometer. • Circuit/harness test for hitch-height potentiometer - SE tractors. • Circuit/harness test for hitch-height potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for hitch-height potentiometer. NOT OK: • No display in address BCU 107: GO TO 3. • Display not within specification: Check the potentiometer’s circuit. - On tractors without Command Arm: GO TO: • Circuit/harness test for hitch-height potentiometer. • Circuit/harness test for hitch-height potentiometer - SE tractors. • Circuit/harness test for hitch-height potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for hitch-height potentiometer. – – –1/1

3 Check voltage supply of hitch height control potentiometer

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: Check the 5-volt power supply at connector X14/1 (X468 with Command Arm). NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-91

6020 to 6920S tractors 022204

PN=219

BCU Diagnostic Trouble Codes

BCU 303055.03 — Position Sensor, Signal Voltage Too High

211 BCU 92

Diagnostic trouble code BCU 303055.03 is saved when the basic control unit measures a voltage over 4.75 volts at the signal input of the position sensor

potentiometer. This indicates that the potentiometer’s circuit is shorted.

LX16167,00000A4 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective position sensor (B21). • Defective line connection between the position sensor and the basic control unit (short circuit): – Positive lead (cable 873). – Signal lead (cable 878). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-92

6020 to 6920S tractors 022204

PN=220

BCU Diagnostic Trouble Codes 2 Checking the position sensor

OK: • Diagnosis completed.

Access address BCU 108 : BCU 108 –– Voltage, Position Sensor (B21)—Specification Lift arms fully raised:—Minimum voltage ........................................................... 0.25 volts Lift arms fully lowered:—Maximum voltage ................................................................................... between 3.0 and 4.75 volts

NOTE: When the lift arms are fully lowered, the voltage must be at least 2 volts higher than when they are fully raised. There should be no beep or sudden change in voltage during the upward or downward movement.

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for position sensor (B21). • Circuit/harness test for position sensor (B21) SE tractors. • Circuit/harness test for position sensor (B21) open operator’s station. NOT OK: GO TO 3.

– – –1/1

3 Check voltage supply of position sensor

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: GO TO: • Circuit/harness test for position sensor (B21). • Circuit/harness test for position sensor (B21) SE tractors. • Circuit/harness test for position sensor (B21) open operator’s station. NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU).

– – –1/1

BCU 303055.04 — Position Sensor, Signal Voltage Too Low

Diagnostic trouble code BCU 303055.04 is saved when the basic control unit measures a voltage below 0.25 volts at the signal input of the position sensor’s

potentiometer. This indicates an open lead in the potentiometer circuit.

LX16167,00000A5 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-93

6020 to 6920S tractors 022204

PN=221

211 BCU 93

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 94

• Defective position sensor (B21). • Defective line connection between the potentiometer and the basic control unit (open or grounded circuit): – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 878). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-94

6020 to 6920S tractors 022204

PN=222

BCU Diagnostic Trouble Codes 2 Checking the position sensor

OK: • Diagnosis completed.

Access address BCU 108 : BCU 108 –– Voltage, Position Sensor (B21)—Specification Lift arms fully raised:—Minimum voltage ........................................................... 0.25 volts Lift arms fully lowered:—Maximum voltage ................................................................................... between 3.0 and 4.75 volts

NOTE: When the lift arms are fully lowered, the voltage must be at least 2 volts higher than when they are fully raised (raise limit not activated). There should be no beep or sudden change in voltage during the upward or downward movement.

• Type of error indicates a loose contact. GO TO: • Circuit/harness test for position sensor (B21). • Circuit/harness test for position sensor (B21) SE tractors. • Circuit/harness test for position sensor (B21) open operator’s station. NOT OK: • No display in address BCU 108: GO TO 3. • Display not within specification: Check the potentiometer’s circuit, then GO TO: Circuit/harness test for position sensor (B21).

– – –1/1

3 Check voltage supply of position sensor

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: Check the 5-volt power supply at connector X96. NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

– – –1/1

BCU 303056.03 — Raise Limit Potentiometer, Signal Voltage Too High

Diagnostic trouble code BCU 303056.03 is saved when the basic control unit measures a voltage over

4.75 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is shorted.

LX16167,00000A6 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-95

6020 to 6920S tractors 022204

PN=223

211 BCU 95

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU 96

• Defective raise limit potentiometer (B27, B97 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (short circuit): – Positive lead (cable 873). – Signal lead (cable 876). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-96

6020 to 6920S tractors 022204

PN=224

BCU Diagnostic Trouble Codes 2 Check raise limit potentiometer

OK: • Diagnosis completed.

Access address BCU 109 : BCU 109 –– Voltage, Raise Limit Potentiometer (B27, B97 with Command Arm)— Specification Potentiometer turned full counter-clockwise:—Voltage ................................................. between 0.25 and 1.5 volts Potentiometer turned full clockwise:— Voltage .................................................................................. between 3.5 and 4.75 volts

NOTE: Potentiometer full clockwise voltage must be at least 2 volts more than the full counterclockwise voltage. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for raise limit potentiometer (B27). • Circuit/harness test for raise limit potentiometer (B27) - SE tractors. • Circuit/harness test for raise limit potentiometer (B27) - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for raise limit potentiometer (B97). NOT OK: GO TO 3.

– – –1/1

3 Check voltage supply of raise limit potentiometer

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for raise limit potentiometer (B27). • Circuit/harness test for raise limit potentiometer (B27) - SE tractors. • Circuit/harness test for raise limit potentiometer (B27) - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for raise limit potentiometer (B97). NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-97

6020 to 6920S tractors 022204

PN=225

211 BCU 97

BCU Diagnostic Trouble Codes

BCU 303056.04 — Raise Limit Potentiometer, Signal Voltage Too Low

211 BCU 98

Diagnostic trouble code BCU 303056.04 is saved when the basic control unit measures a voltage below

0.25 volts at the signal input of the potentiometer. This indicates an open lead in the potentiometer circuit.

LX16167,00000A7 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective raise limit potentiometer (B27, B97 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (open or grounded circuit): – Positive lead (cable 873). – Ground lead (cable 871/531). – Signal lead (cable 876). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-98

6020 to 6920S tractors 022204

PN=226

BCU Diagnostic Trouble Codes 2 Check raise limit potentiometer

OK: • Diagnosis completed.

Access address BCU 109 : BCU 109 –– Voltage, Raise Limit Potentiometer (B27, B97 with Command Arm)— Specification Potentiometer turned full counter-clockwise:—Voltage ................................................. between 0.25 and 1.5 volts Potentiometer turned full clockwise:— Voltage .................................................................................. between 3.5 and 4.75 volts

NOTE: Potentiometer full clockwise voltage must be at least 2 volts more than the full counterclockwise voltage. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact. - On tractors without Command Arm, GO TO: • Circuit/harness test for raise limit potentiometer (B27). • Circuit/harness test for raise limit potentiometer (B27) - SE tractors. • Circuit/harness test for raise limit potentiometer (B27) - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for raise limit potentiometer (B97). NOT OK: • No display in address BCU 109: GO TO 3. • Display not within specification: - On tractors without Command Arm, GO TO: • Circuit/harness test for raise limit potentiometer (B27). • Circuit/harness test for raise limit potentiometer (B27) - SE tractors. • Circuit/harness test for raise limit potentiometer (B27) - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for raise limit potentiometer (B97).

– – –1/1

TM4726 (01NOV03)

211-BCU-99

6020 to 6920S tractors 022204

PN=227

211 BCU 99

BCU Diagnostic Trouble Codes 3 Check voltage supply of raise limit potentiometer

Access address BCU 116 :

OK: Check the 5-volt power supply at connector X14/1 (X469 with Command Arm).

BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

211 BCU ,100

– – –1/1

BCU 303057.03 — Rate-of-Drop Potentiometer, Signal Voltage Too High

Diagnostic trouble code BCU 303057.03 is saved when the basic control unit measures a voltage over

4.75 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is shorted.

LX16167,00000A8 –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective rate-of-drop potentiometer (B27, B97 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (short circuit): – Positive lead (cable 873). – Signal lead (cable 875). Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

TM4726 (01NOV03)

211-BCU-100

6020 to 6920S tractors 022204

PN=228

BCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. BCU ,101

– – –1/1

2 Check rate-of-drop potentiometer

OK: • Diagnosis completed.

Access address BCU 110 : BCU 110 –– Voltage, Rate-Of-Drop Potentiometer (B27, B97 with Command Arm)—Specification Potentiometer turned full counter-clockwise:—Voltage ................................................. between 0.25 and 1.5 volts Potentiometer turned full clockwise:— Voltage .................................................................................. between 3.5 and 4.75 volts

NOTE: Potentiometer full clockwise voltage must be at least 2 volts more than the full counterclockwise voltage. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact.

- On tractors without Command Arm: GO TO: • Circuit/harness test for rate-of-drop potentiometer. • Circuit/harness test for rate-of-drop potentiometer - SE tractors. • Circuit/harness test for rate-of-drop potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for rate-of-drop potentiometer. NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BCU-101

6020 to 6920S tractors 022204

PN=229

BCU Diagnostic Trouble Codes 3 Check voltage supply of rate-of-drop potentiometer

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

211 BCU ,102

OK: - On tractors without Command Arm: GO TO: • Circuit/harness test for rate-of-drop potentiometer . • Circuit/harness test for rate-of-drop potentiometer - SE tractors. • Circuit/harness test for rate-of-drop potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for rate-of-drop potentiometer. NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.03, Section 211, Group BCU).

– – –1/1

BCU 303057.04 — Rate-of-Drop Potentiometer, Signal Voltage Too Low

Diagnostic trouble code BCU 303057.04 is saved when the basic control unit measures a voltage below

0.25 volts at the signal input of the potentiometer. This indicates an open lead in the potentiometer circuit.

LX16167,00000A9 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BCU-102

6020 to 6920S tractors 022204

PN=230

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective rate-of-drop potentiometer (B27, B97 with Command Arm). • Defective line connection between the potentiometer and the basic control unit (open or grounded circuit): – Positive lead (cable 873). – Ground lead (cable 871/531). – Signal lead (cable 875). Additional references:

211 BCU ,103

• General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-103

6020 to 6920S tractors 022204

PN=231

BCU Diagnostic Trouble Codes 2 Check rate-of-drop potentiometer

OK: • Diagnosis completed.

Access address BCU 110 : BCU 110 –– Voltage, Rate-Of-Drop Potentiometer (B27, B97 with Command Arm)—Specification Potentiometer turned full counter-clockwise:—Voltage ................................................. between 0.25 and 1.5 volts Potentiometer turned full clockwise:— Voltage .................................................................................. between 3.5 and 4.75 volts

211 BCU ,104

NOTE: Potentiometer full clockwise voltage must be at least 2 volts more than the full counterclockwise voltage. There should be no beep or sudden change in voltage while the control is being moved.

• Type of error indicates a loose contact. - On tractors without Command Arm: GO TO: • Circuit/harness test for rate-of-drop potentiometer. • Circuit/harness test for rate-of-drop potentiometer - SE tractors. • Circuit/harness test for rate-of-drop potentiometer - open operator’s station. - On tractors with Command Arm: GO TO: Circuit/harness test for rate-of-drop potentiometer. NOT OK: • No display in address BCU 110: GO TO 3. • Display not within specification:

- On tractors without Command Arm: GO TO: • Circuit/harness test for rate-of-drop potentiometer. • Circuit/harness test for rate-of-drop potentiometer - SE tractors. • Circuit/harness test for rate-of-drop potentiometer - open operator’s station . - On tractors with Command Arm: GO TO: Circuit/harness test for rate-of-drop potentiometer. – – –1/1

3 Check voltage supply of rate-of-drop potentiometer

Access address BCU 116 : BCU 116 –– Voltage, 5-volt Power Supply for Hitch Control Units—Specification 5-volt power supply:—Voltage ................................................................ 4.75 - 5.25 volts

OK: Check the 5-volt power supply at connector X14/1 (X469 with Command Arm). NOT OK: Refer to diagnostics for faulty 5-volt power supply (diagnostic trouble code BCU 303037.04, Section 211, Group BCU).

– – –1/1

TM4726 (01NOV03)

211-BCU-104

6020 to 6920S tractors 022204

PN=232

BCU Diagnostic Trouble Codes

BCU 303058.02 — Remote Control Switch, Erroneous Signal

Diagnostic trouble code BCU 303058.02 is saved when the basic control unit receives an erroneous signal combination from one of the hitch remote control

switches (signal from the switch on the right and/or left fender). This indicates a fault in the switch’s circuit.

LX16167,00000AA –19–01SEP02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective left (S31) or right (S23) remote control switch. • Defective line connection between the remote control switch and the basic control unit. Additional references: • General hitch information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control). • “Replacing the Rockshaft’s Remote Control Switch”, (Section 40, Group 25 in the Repair manual).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-105

6020 to 6920S tractors 022204

PN=233

211 BCU ,105

BCU Diagnostic Trouble Codes 2 Check left remote control switch

2.1

OK: GO TO 3.

Access address BCU 112:

NOT OK: GO TO: • Circuit/harness test for left remote control switch (S68). • Circuit/harness test for left remote control switch (S68) - SE tractors.

BCU 112 –– Raise Status, Left Remote Control Switch (S68)—Specification Switch in neutral position:—Status ............................................................................. 010 Switch in raise position:—Status ................................................................................. 001

211 BCU ,106

2.2 Access address BCU 114: BCU 114 –– Lower Status, Left Remote Control Switch (S68)—Specification Switch in neutral position:—Status ............................................................................. 010 Switch in lower position:—Status ................................................................................ 001

– – –1/1

3 Check right remote control switch

OK: • Diagnosis completed.

3.1 Access address BCU 113: BCU 113 –– Raise Status, Right Remote Control Switch (S23)—Specification Switch in neutral position:—Status ............................................................................. 010 Switch in raise position:—Status ................................................................................. 001

• Type of error indicates a loose contact.

- GO TO: Circuit/harness test for right remote control switch (S23).

3.2 Access address BCU 115: BCU 115 –– Lower Status, Right Remote Control Switch (S23)—Specification Switch in neutral position:—Status ............................................................................. 010 Switch in lower position:—Status ................................................................................ 001

- GO TO: • Circuit/harness test for left remote control switch (S68). • Circuit/harness test for left remote control switch (S68) - SE tractors. NOT OK: GO TO: Circuit/harness test for right remote control switch (S23).

– – –1/1

TM4726 (01NOV03)

211-BCU-106

6020 to 6920S tractors 022204

PN=234

BCU Diagnostic Trouble Codes

BCU 303060.02 — Stepper Motor Deadband Out of Range

Diagnostic trouble code BCU 303060.02 is saved when the basic control unit registers an erroneous stepper motor deadband (the play between the

adjustment cam of the stepper motor and the raise/lower valve of the hitch valve is out of the valid range).

211 BCU ,107

LX16167,00000AB –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • False raise/lower valve setting. • Stepper motor not centered Additional references: • General Hitch Information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BCU-107

6020 to 6920S tractors 022204

PN=235

BCU Diagnostic Trouble Codes 2 “Calibrating the discharge valve”

Go through calibration procedure as far as step 8a “ Calibrating the Discharge Valve” . Refer to Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control.

OK: End the calibration process.

8a - Calibrating the discharge valve

NOT OK: If the diagnostic trouble code appears again, GO TO 3.

Press the “LOWER” switch briefly, until the hitch starts to go down, then release the switch.

211 BCU ,108

Display: 122:XXXXX (steps of the stepper motor, lowering deadband) When 00000 appears, the discharge valve is calibrated and the value is stored. If not: Center the stepper motor without leaving the calibrating address, and repeat from step 8a until the values are OK (Reference 270-15-110, Checking the Stepper Motor and Hitch Valve).

– – –1/1

3 “Calibrating the pressure valve”

Go through calibration procedure as far as step 8b “ Calibrating the Pressure Valve” . Refer to Reference 245-BCU-002, Calibration and Input Addresses, Hitch Control.

OK: End the calibration process.

8b - Calibrating the pressure valve

NOT OK: If the figures quoted here are still not obtained: Check the depth to which raising and lowering valves are screwed in (Reference 270-15-132, Hitch Valve — Depth to Which Raising and Lowering Valves are Screwed In).

Press the “RAISE” switch briefly, until the hitch starts to rise, then release the switch. Display: 122:XXXXX (steps of the stepper motor, raising deadband) When 00000 appears, the pressure valve is calibrated and the value is stored. If not: Center the stepper motor without leaving the calibrating address, and repeat from step 8a until the values are OK (Reference 270-15-110, Checking the Stepper Motor and Hitch Valve).

– – –1/1

TM4726 (01NOV03)

211-BCU-108

6020 to 6920S tractors 022204

PN=236

BCU Diagnostic Trouble Codes

BCU 303177.18 — Oil Temperature During Calibration Too Low

Diagnostic trouble code BCU 303177.18 is saved when an oil temperature below 40° C (104° F) is registered while the hitch control is being calibrated. A low oil temperature may adversely affect the calibration process.

Calibration and Input Addresses, Hitch Control).

211 BCU ,109

NOTE: Heat the hydraulic oil and repeat the calibration (Reference 245-BCU-002,

LX16167,00000AC –19–03APR02–1/1

BCU 303251.02 — Left Draft Sender, Disrupted Signal During Calibration

Diagnostic trouble code BCU 303251.02 is saved when the basic control unit registers a varying voltage (more than 0.5 volts) at the signal input of the left draft

sender. This indicates a fault in the draft sensor’s circuit.

LX16167,00000AD –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-109

6020 to 6920S tractors 022204

PN=237

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU ,110

• Defective draft sender B20. • Defective line connection between draft sender (B20) and basic control unit: – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 885). Additional references: • General Hitch Information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control). • Reference 245-BCU-002 , Calibration and Input Addresses, Hitch Control.

– – –1/1

1 Check Left Draft Sender

Check the circuit of the left draft sender (B20), refer to the diagnostic code procedures BCU 303051.04 –– Left Draft Sender, Signal Voltage Too Low and repeat the calibration.

OK: Diagnosis completed. NOT OK: If diagnostic trouble code BCU 303251.02 reoccurs after the calibration and the circuit of the left draft sender (B20) is OK: Replace the draft sender and repeat the calibration.

– – –1/1

TM4726 (01NOV03)

211-BCU-110

6020 to 6920S tractors 022204

PN=238

BCU Diagnostic Trouble Codes

BCU 303251.03 — Left Draft Sender, Signal Voltage Too High During Calibration

Diagnostic trouble code BCU 303251.03 is saved when the basic control unit measures a voltage over 4.75 volts at the signal input of the left draft sender during the calibration process. This indicates that the draft sensor’s circuit is shorted. NOTE: The following are possible causes: • Left draft sender (B20) is set wrongly or misadjusted.

• Defective draft sender B20. • Defective line connection between draft sender (B20) and basic control unit: – Positive lead (cable 873). – Signal lead (cable 885). Perform the procedure for diagnostic trouble code BCU 303051.03 –– Left Draft Sender, Signal Voltage Too High and repeat the calibration.

LX16167,00000AE –19–03APR02–1/1

BCU 303251.04 — Left Draft Sender, Signal Voltage Too Low During Calibration

Diagnostic trouble code BCU 303251.04 is saved when the basic control unit measures a voltage below 0.25 volts at the signal input of the left draft sender during the calibration process. This indicates that the draft sensor’s circuit is open. NOTE: The following are possible causes: • Left draft sender (B20) is set wrongly or misadjusted.

• Defective draft sender B20. • Defective line connection between draft sender (B20) and basic control unit: – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 885). Perform the procedure for diagnostic trouble code BCU 303051.04 –– Left Draft Sender, Signal Voltage Too Low and repeat the calibration.

LX16167,00000AF –19–03APR02–1/1

BCU 303252.02 — Right Draft Sender, Disrupted Signal During Calibration

Diagnostic trouble code BCU 303252.02 is saved when the basic control unit registers a varying voltage (more than 0.5 volts) at the signal input of the right

draft sender. This indicates a fault in the draft sensor’s circuit.

LX16167,00000B0 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-111

6020 to 6920S tractors 022204

PN=239

211 BCU ,111

BCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 BCU ,112

• Right draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S) is set wrongly or misadjusted. • Defective draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S). • Defective line connection between draft sender or potentiometer and basic control unit: – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 884). Additional references: • General Hitch Information: Reference 270-20-001, PFC Hydraulic System — Summary of References. • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-201, Operation of the Basic Control Unit (Hitch Control). • Reference 245-BCU-002 , Calibration and Input Addresses, Hitch Control.

– – –1/1

1 Check Right Draft Sender or Draft Potentiometer

Check the circuit of draft sender B19 or draft potentiometer B41, refer to the diagnostic code procedure BCU 303052.04 –– Right Draft Sender, Signal Voltage Too Low and repeat the calibration.

OK: Diagnosis completed. NOT OK: If diagnostic trouble code BCU 303252.02 reoccurs after the calibration and the circuit of the right draft sender B19 or draft potentiometer B41 is OK: Replace draft sender/draft potentiometer and repeat the calibration. – – –1/1

TM4726 (01NOV03)

211-BCU-112

6020 to 6920S tractors 022204

PN=240

BCU Diagnostic Trouble Codes

BCU 303252.03 — Right Draft Sender, Signal Voltage Too High During Calibration

Diagnostic trouble code BCU 303252.03 is saved when the basic control unit measures a voltage over 4.75 volts at the signal input of the right draft sender during the calibration process. This indicates that the draft sensor’s circuit is shorted. NOTE: The following are possible causes: • Right draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S) is set wrongly or misadjusted.

• Defective draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S). • Defective line connection between draft sender or potentiometer and basic control unit: – Positive lead (cable 873). – Signal lead (cable 884). Perform the procedure for diagnostic trouble code BCU 303052.03 –– Right Draft Sender, Signal Voltage Too High and repeat the calibration.

LX16167,00000B1 –19–03APR02–1/1

BCU 303252.04 — Right Draft Sender, Signal Voltage Too Low During Calibration

Diagnostic trouble code BCU 303252.04 is saved when the basic control unit measures a voltage below 0.25 volts at the signal input of the right draft sender during the calibration process. This indicates that the draft sensor’s circuit is open. NOTE: The following are possible causes: • Right draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S) is set wrongly or misadjusted.

• Defective draft sender B19 (6020 - 6620) or draft potentiometer B41 (6820 - 6920S). • Defective line connection between draft sender or potentiometer and basic control unit: – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 884). Perform the procedure for diagnostic trouble code BCU 303052.04 –– Right Draft Sender, Signal Voltage Too Low and repeat the calibration.

LX16167,00000B2 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-113

6020 to 6920S tractors 022204

PN=241

211 BCU ,113

BCU Diagnostic Trouble Codes

BCU 303255.03 — Position Sender, Signal Voltage Too High During Calibration

211 BCU ,114

Diagnostic trouble code BCU 303255.03 is saved when the basic control unit measures a voltage over 4.75 volts at the signal input of the position sender potentiometer during the calibration process. This indicates a short circuit in the potentiometer circuit. NOTE: The following are possible causes: • Defective position sender (B21).

• Defective line connection between the position sender and the basic control unit (short circuit): – Positive lead (cable 873). – Signal lead (cable 878). Perform the procedure for diagnostic trouble code BCU 303055.03 –– Position Sender, Signal Voltage Too High and repeat the calibration.

LX16167,00000B3 –19–03APR02–1/1

BCU 303255.04 — Position Sender, Signal Voltage Too Low During Calibration

Diagnostic trouble code BCU 303255.04 is saved when the basic control unit measures a voltage below 0.25 volts at the signal input of the position sender potentiometer during the calibration process. This indicates that the potentiometer’s circuit is open. NOTE: The following are possible causes: • Defective position sender (B21).

• Defective line connection between the potentiometer and the basic control unit (open or grounded circuit): – Positive lead (cable 873). – Ground lead (cable 531). – Signal lead (cable 878). Perform the procedure for diagnostic trouble code BCU 303055.04 –– Position Sender, Signal Voltage Too Low and repeat the calibration.

LX16167,00000B4 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-114

6020 to 6920S tractors 022204

PN=242

BCU Diagnostic Trouble Codes

BCU 303260.16 — Stepper Motor Raising Deadband Above Valid Range During Calibration

Diagnostic trouble code BCU 303260.16 is saved when the raising deadband of the stepper motor (play between the adjustment cam of the stepper motor and the raise valve of the hitch valve) detected during calibration is too large.

211 BCU ,115

• False raise valve setting. • Stepper motor not centered Perform the procedure for diagnostic trouble code BCU 303060.02 –– Stepper Motor Deadband Out of Range and repeat the calibration.

NOTE: The following are possible causes:

LX16167,00000B5 –19–03APR02–1/1

BCU 303260.18 — Stepper Motor Raising Deadband Below Valid Range During Calibration

Diagnostic trouble code BCU 303260.18 is saved when the raising deadband of the stepper motor (play between the adjustment cam of the stepper motor and the raise valve of the hitch valve) detected during calibration is too small.

• False raise valve setting. • Stepper motor not centered Perform the procedure for diagnostic trouble code BCU 303060.02 –– Stepper Motor Deadband Out of Range and repeat the calibration.

NOTE: The following are possible causes:

LX16167,00000B6 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-115

6020 to 6920S tractors 022204

PN=243

BCU Diagnostic Trouble Codes

BCU 303261.16 — Stepper Motor Lowering Deadband Above Valid Range During Calibration

211 BCU ,116

Diagnostic trouble code BCU 303261.16 is saved when the lowering deadband of the stepper motor (play between the adjustment cam of the stepper motor and the lower valve of the hitch valve) detected during calibration is too large.

• False lower valve setting. • Stepper motor not centered Perform the procedure for diagnostic trouble code BCU 303060.02 –– Stepper Motor Deadband Out of Range and repeat the calibration.

NOTE: The following are possible causes:

LX16167,00000B7 –19–03APR02–1/1

BCU 303261.18 — Stepper Motor Lowering Deadband Below Valid Range During Calibration

Diagnostic trouble code BCU 303261.18 is saved when the lowering deadband of the stepper motor (play between the adjustment cam of the stepper motor and the lower valve of the hitch valve) detected during calibration is too small.

• False lower valve setting. • Stepper motor not centered Perform the procedure for diagnostic trouble code BCU 303060.02 –– Stepper Motor Deadband Out of Range and repeat the calibration.

NOTE: The following are possible causes:

LX16167,00000B8 –19–03APR02–1/1

TM4726 (01NOV03)

211-BCU-116

6020 to 6920S tractors 022204

PN=244

Group BIF

BIF Diagnostic Trouble Codes BIF 000096.03 — Fuel Gauge Sender, Shorted or Open Circuit

Diagnostic trouble code BIF 000096.03 is saved when there is an open or a short circuit to the supply voltage (battery voltage) in the sender circuit. The instrument

panel displays an empty tank and the alarm level: “Information” is triggered.

211 BIF 1

LX16167,0000042 –19–01NOV02–1/1

Diagnostics The following are possible causes: • • • • •

Defective fuse F04/11. Defective fuel gauge sender B03. Defective/bad ground connection (cable 310) via ground point XGND45 to XGND1. Defective positive lead (cable 320/322). Defective signal lead (cable 353).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 230-20-010, Fuel System Description.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BIF-1

6020 to 6920S tractors 022204

PN=245

BIF Diagnostic Trouble Codes 2 Check fuel level display

OK: • Diagnosis completed.

2.1 Fuel level in percent: Access address BIF 31 and compare the displayed fuel tank level with actual level in fuel tank: BIF 31 –– Status, fuel gauge sender (B03) in %—Specification Fuel tank level:—Percentage ............................................................. between 0 and 100

211 BIF 2

• Type of error indicates a loose contact: GO TO 3. NOT OK: Address BIF 31 displays the wrong value: GO TO 2.2. OK: • Diagnosis completed.

2.2 Fuel level in volts: Access address BIF 16: BIF 16 –– Voltage, fuel gauge sender (B03)—Specification Fuel tank level:—Voltage ........................................................ between 0.5 and 4.0 volts

• Type of error indicates a loose contact: GO TO: Circuit/harness test for fuel gauge sender (B03) NOT OK: GO TO 2.3

2.3 Check sender supply voltage:

OK: GO TO 3.

Access address BIF 16:

NOT OK: GO TO: Circuit/harness test for fuel gauge sender (B03)

BIF 16 –– Voltage, fuel gauge sender (B03)—Specification Sender B03 separated from the wiring harness (at an operating voltage of 12 volts):—Voltage ....................................................................... between 3.0 and 4.0 volts

– – –1/1

3 Check fuel gauge sender (B03)

Use a multimeter to measure between pin A and C at the fuel gauge sender connector:

OK: GO TO: Circuit/harness test for fuel gauge sender (B03)

Fuel gauge sending unit (B03)—Specification Empty tank:—Resistance ...................................................................... 10 (+/- 2.5) ohms Full tank:—Resistance ....................................................................... 180 (+12/- 2) ohms

NOT OK: Replace the sender and repeat the test.

– – –1/1

BIF 000096.04 — Fuel Gauge Sender, Grounded Circuit

Diagnostic trouble code BIF 000096.04 is saved when there is a short to ground in the sender circuit. The

instrument panel displays an empty tank and the alarm level: “Information” is triggered.

LX16167,0000043 –19–01NOV02–1/1

TM4726 (01NOV03)

211-BIF-2

6020 to 6920S tractors 022204

PN=246

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective fuel gauge sender B03. • Defective signal lead (grounded circuit at cable 353).

211 BIF 3

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 230-20-010, Fuel System Description.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BIF-3

6020 to 6920S tractors 022204

PN=247

BIF Diagnostic Trouble Codes 2 Check fuel level display

OK: • Diagnosis completed.

2.1 Fuel level in percent: Access address BIF 31 and compare the displayed fuel tank level with actual level in fuel tank: BIF 31 –– Status, fuel gauge sender (B03) in %—Specification Fuel tank level:—Percent ................................................................... between 0 and 100

211 BIF 4

• Type of error indicates a loose contact: GO TO 3. NOT OK: Address BIF 31 displays the wrong value: GO TO 2.2.

2.2 Fuel level in volts:

OK: GO TO: GO TO 3.

Access address BIF 16:

NOT OK: GO TO 2.3

BIF 16 –– Voltage, fuel gauge sender (B03)—Specification Fuel tank level:—Voltage ........................................................ between 0.5 and 4.0 volts

2.3 Check sender supply voltage:

OK: GO TO 3.

Access address BIF 16:

NOT OK: GO TO: Circuit/harness test for fuel gauge sender (B03)

BIF 16 –– Voltage, fuel gauge sender (B03)—Specification Sender B03 separated from the wiring harness (at an operating voltage of 12 volts):—Voltage ....................................................................... between 3.0 and 4.0 volts

– – –1/1

3 Check fuel gauge sender (B03)

Use a multimeter to measure between pin A and C at the fuel gauge sender connector:

OK: GO TO: Circuit/harness test for fuel gauge sender (B03)

Fuel gauge sending unit (B03)—Specification Empty tank:—Resistance ...................................................................... 10 (+/- 2.5) ohms Full tank:—Resistance ....................................................................... 180 (+12/- 2) ohms

NOT OK: Replace the sender and repeat the test.

– – –1/1

BIF 000096.17 — Low Fuel Level

Diagnostic trouble code BIF 000096.17 is saved when the instrument panel registers a low fuel level (below 4 % of the maximum capacity). Fill up with fuel.

LX16167,0000044 –19–01SEP02–1/1

TM4726 (01NOV03)

211-BIF-4

6020 to 6920S tractors 022204

PN=248

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: • Fuel level in tank too low. • Fuel gauge sender B03 misadjusted. • Defective fuel gauge sender B03.

211 BIF 5

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 230-20-010, Fuel System Description.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: Fill up fuel tank.

Check fuel level.

NOT OK: Tank shows no low fuel level: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BIF-5

6020 to 6920S tractors 022204

PN=249

BIF Diagnostic Trouble Codes 2 Check fuel tank level

2.1 Fuel level in percent:

OK: Diagnosis completed.

Access address BIF 31 and compare the displayed fuel tank level with actual level in fuel tank: BIF 31 –– Status, fuel gauge sender (B03) in %—Specification Fuel tank level:—Percent ................................................................... between 0 and 100

211 BIF 6

2.2 Fuel Gauge Sender B03, Test and Adjustment: 1. Testing the sender/pump unit: Fuel gauge sending unit (B03)—Specification Empty tank:—Resistance ...................................................................... 10 (+/- 2.5) ohms Full tank:—Resistance ....................................................................... 180 (+12/- 2) ohms

NOT OK: Address BIF 31 displays the wrong value: GO TO 2.2.

OK: GO TO: Circuit/harness test for fuel gauge sender (B03) NOT OK: Adjust the fuel gauge sender.

2. Sender/pump adjustment: Position the sender/pump unit, to enable the float arm to sit into a well leading away from the pump locating socket in the base of the tank. For exact positioning, use a multimeter. The empty-position Ohm-value, when the sender/pump unit is pressed down against its spring, needs to be 15 to 18 Ohm. The pump socket can be seen from the underside of the tank, showing the position and direction of the sender/pump guide for the sender arm.

NOTE: If the engine is running, the fuel gauge sender is connected to the wiring harness and the lever of the sender moves from the "Empty" to the "Full" position, it takes a few minutes before the display indicates the new fuel level. Inside the BIF a delay relay (5 to 10 minutes) is installed.

– – –1/1

BIF 000100.00 — Engine Oil Pressure Low

Diagnostic trouble code BIF 000100.00 is saved when the instrument panel does not register any engine oil pressure. The sender of the engine oil pressure

warning light is open at an engine speed of 700 rpm. The diagnostic code triggers the alarm level: “Stop Engine”.

LX16167,0000045 –19–03APR02–1/1

TM4726 (01NOV03)

211-BIF-6

6020 to 6920S tractors 022204

PN=250

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: • Engine oil pressure too low (engine problem). • Defective engine oil pressure sender B04. • Defective signal lead (open circuit at cable 347).

211 BIF 7

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Theory of operation: “Lubrication System Operation”, Base Engine CTM.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Perform a visual inspection of the engine (lubrication system): ❒ ❒ ❒ ❒

Check for oil leaks. Check engine oil level. Check filters. Check for oil leaks (visual signs of damages at the engine), see reference “Check for Head Gasket Failures”, Base Engine CTM. ❒ While the engine is not running, check whether there is an oil film on the coolant (this would indicate malfunctions that require engine repairs, refer to “Preliminary Engine Testing”, Base Engine CTM)

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: Visual inspection does not reveal any problems: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

2 Check Engine Oil Pressure Sender

OK: • Diagnosis completed.

Access address BIF 13: BIF 13 –– Status, Engine Oil Pressure Sender (B04)—Specification Engine OFF:—Status (pressure) ............................ XX1 (No pressure, Sender is closed) Engine RUNNING:—Status (pressure) ..................... XX0 (Pressure in circuit, Sender is OPEN)

• Type of error indicates a loose contact. GO TO: Circuit/Harness test for Engine Oil Pressure Sender (B04). NOT OK: GO TO: Circuit/Harness test for Engine Oil Pressure Sender (B04). – – –1/1

TM4726 (01NOV03)

211-BIF-7

6020 to 6920S tractors 022204

PN=251

BIF Diagnostic Trouble Codes

BIF 000107.16 — Engine Air Cleaner Clogged

211 BIF 8

Diagnostic trouble code BIF 000107.16 is saved when the instrument panel registers a restricted engine air cleaner. The sender of the engine air filter control light

is closed at an engine speed of 700 rpm. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000046 –19–01NOV02–1/1

Diagnostics The following are possible causes: • Air cleaner clogged. • Defective sender B02 for air cleaner restriction warning light. • Defective signal lead (grounded circuit at cable 351). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 230-20-020, Air Intake System Operation. • “Air Intake and Exhaust System Operation”, Base Engine CTM.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

Visual inspection of the air cleaning circuit:

NOT OK: Recondition as required and carry out an operational test.

❒ Check air filter, and clean or replace elements (See Operator’s Manual for details). ❒ Check condition of air intake hoses. Replace hoses that are cracked, split or otherwise in poor condition. ❒ Check hose clamps for tightness. Replace clamps that cannot be properly tightened. This will help prevent dust from entering the air intake system which could cause serious engine damage.

– – –1/1

TM4726 (01NOV03)

211-BIF-8

6020 to 6920S tractors 022204

PN=252

BIF Diagnostic Trouble Codes 2 Checking air cleaner indicator light sender (B02) in diagnostic address BIF 12

Access address BIF 12:

OK: Diagnosis completed.

BIF 12 –– Status, sender (B02) for air cleaner restriction warning light— Specification Air cleaner restricted:—Status .................................................................................... XX0 Air cleaner not restricted:—Status .............................................................................. XX1

NOT OK: GO TO 3.

– – –1/1

3 Testing the air intake system

See Reference 230-15-060 , Testing the Air Intake System.

OK: GO TO: Circuit/Harness test for air filter indicator light sender (B02). NOT OK: Recondition as needed and repeat the test.

– – –1/1

BIF 000110.00 — Coolant Temperature Very High

Diagnostic trouble code BIF 000110.00 is saved when the engine coolant temperature is more than 113°C

(235°F). This diagnostic trouble code triggers the alarm level: “Stop Engine”.

LX16167,0000047 –19–01NOV02–1/1

TM4726 (01NOV03)

211-BIF-9

6020 to 6920S tractors 022204

PN=253

211 BIF 9

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 BIF 10

• • • • • •

Low coolant level. Heavy load on the engine. Dirty radiator screen. Broken fan belt. Defective viscous fan drive. Defective coolant temperature sender B08 (erroneous valid/maximum temperature range).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 230-20-001, Fuel, Air Intake and Cooling Systems, Cold-Weather Starting Aids - Description of Components — Summary of References. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Clean dirty cooling system elements and perform a visual inspection of the cooling system: ❒ ❒ ❒ ❒ ❒

Check for leaks. Check engine oil and coolant level. Check filter. Check for visible damage at the radiator, the viscous fan drive and the drive belt. Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: Visual inspection does not reveal any problems: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-BIF-10

6020 to 6920S tractors 022204

PN=254

BIF Diagnostic Trouble Codes 2 Isolate or identify the cause of the overheating

Ask the operator: • • • •

How does the machine function? Fault comes along with lack of performance, unusual noise? When does the fault occur? During what type of work does the fault occur? – Fault comes along with unusual noise? – Fault occurs during work with special implement? (Does the implement comply fully with technical specifications?) • Does the tractor comply fully with technical specifications?

OK: Internal engine problem is the cause for the problem: GO TO 6. OK: Cooling system problem is the cause for the problem: GO TO 5. NOT OK: Problem/cause cannot be isolated: GO TO 3.

– – –1/1

3 Check coolant temperature sender

BIF temperature gauge: • Access address BIF 34 and compare the displayed temperature with the actual temperature of the coolant: BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113 ECU temperature gauge (only tractors with Level 4 engine control unit/Bosch VP44 injection pump): • Access address ECU 20 and compare the temperature displayed on the BIF display:

OK: BIF temperature reading does correspond to actual engine coolant temperature. Check cooling system, GO TO 5. NOT OK: BIF temperature reading does NOT correspond to actual engine coolant temperature: GO TO 4.

ECU 20 –– Status, coolant temperature sender (B56) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113

– – –1/1

4 Checking coolant temperature sender (B08) in diagnostic address BIF 34

Access address BIF 34: BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113

OK: BIF temperature reading does correspond to actual coolant temperature NOT OK: BIF temperature reading does NOT correspond to actual engine coolant temperature: GO TO: Circuit/harness test for coolant temperature sender (B08) – – –1/1

TM4726 (01NOV03)

211-BIF-11

6020 to 6920S tractors 022204

PN=255

211 BIF 11

BIF Diagnostic Trouble Codes 5 Cooling system diagnosis

Following items can cause the engine to overheat: • • • • • •

211 BIF 12

• • • • • • • •

Loose or broken fan belt. Dirty radiator Low coolant level. Low crankcase oil level Engine overloaded. Defective viscous fan drive, see Reference 230-15-090, Checking the Viscous Fan Drive. Defective radiator cap, see Reference 230-15-070, Testing Cooling System for Leaks. Defective head gasket, see reference “Check for Head Gasket Failures”, Base Engine CTM. Injection pump not correctly timed. Faulty thermostat, see reference “Inspect Thermostat and Test Opening Temperature”, Base Engine CTM Faulty coolant pump, see reference “Inspect, Clean, and Measure Water Pump Parts”, Base Engine CTM. Corroded coolant passages. Improper grade of fuel. Excessive fuel delivery, see reference “Diagnosing Fuel System Malfunctions”, Mechanical Fuel System CTM.

OK: Perform engine diagnosis: GO TO 6. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

6 Engine diagnosis

Perform engine diagnosis, see reference in Base Engine CTM.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

BIF 000110.03 — Coolant Temperature Sender, Short or Open Circuit

Diagnostic trouble code BIF 000110.03 is saved when the instrument panel registers an unlikely temperature and therefore indicates that there is an open or a short circuit to the supply voltage (battery voltage) in the

sender circuit. The coolant temperature indicator is at the extreme right of the red warning zone and the alarm level: “Information” is triggered.

LX16167,0000048 –19–01NOV02–1/1

TM4726 (01NOV03)

211-BIF-12

6020 to 6920S tractors 022204

PN=256

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: • • • •

Wrong value in input address BIF 36. Defective coolant temperature sender B08. Defective line connection (cable 329 or 050). Defective/bad ground connection via ground point XGND6 to XGND43.

211 BIF 13

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check input address BIF 36

Access address BIF 36:

OK: GO TO 3.

BIF 36 –– Established parameter (configuration of engine oil pressure and coolant temperature)—Specification Tractors without engine control unit or with Level 1 ECU:—Status .......................................................................................... 000 Tractors with Level 4 ECU (Bosch VP44 injection pump):—Status ............................................................................................. 002

NOT OK: Correct the input.

– – –1/1

TM4726 (01NOV03)

211-BIF-13

6020 to 6920S tractors 022204

PN=257

BIF Diagnostic Trouble Codes 3 Check coolant temperature sender

3.1 Coolant temperature in °C:

OK: • Diagnosis completed.

BIF temperature gauge: • Access address BIF 34 and compare the displayed temperature with the actual temperature of the coolant: 211 BIF 14

BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113 ECU temperature gauge (only tractors with Level 4 engine control unit/Bosch VP44 injection pump): • Access address ECU 20 and compare the temperature displayed on the BIF display:

• Type of error indicates a loose contact: GO TO: Circuit/harness test for coolant temperature sender (B08) NOT OK: Address BIF 34 displays the wrong value: GO TO 3.2.

ECU 20 –– Status, coolant temperature sender (B56) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113 3.2 Coolant temperature in volts:

OK: GO TO 4.

Access address BIF 18:

NOT OK: GO TO 3.3

BIF 18 –– Voltage, coolant temperature sender (B08)—Specification Coolant temperature:—Voltage ............................................... between 0.5 and 4.0 volts

3.3 Check sender supply voltage (cable 329):

OK: GO TO 4.

Access address BIF 18:

NOT OK: GO TO: Circuit/harness test for coolant temperature sender (B08)

BIF 18 –– Voltage, coolant temperature sender (B08)—Specification Sender B08 separated from the wiring harness (at an operating voltage of 12 volts):—Voltage ....................................................................... between 3.0 and 4.0 volts Use a multimeter to measure between pin A and B at connector X262 (wiring harness W02): Voltage, coolant temperature sender (B08) at connector X262—Specification At a BIF operating voltage of 12 volts:— Voltage .................................................................................... between 3.0 and 4.0 volts

– – –1/1

4 Checking coolant temperature sender (B08) in diagnostic address BIF 34

Access address BIF 34: BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113

OK: BIF temperature reading does correspond to actual coolant temperature NOT OK: BIF temperature reading does NOT correspond to actual engine coolant temperature: GO TO: Circuit/harness test for coolant temperature sender (B08) – – –1/1

TM4726 (01NOV03)

211-BIF-14

6020 to 6920S tractors 022204

PN=258

BIF Diagnostic Trouble Codes

BIF 000110.04 — Coolant Temperature Sender, Short to Ground

Diagnostic trouble code BIF 000110.04 is saved when the instrument panel registers an unlikely temperature and therefore indicates that there is a short to ground

in the sender circuit. The coolant temperature indicator is at the extreme right of the red warning zone and the alarm level: “Information” is triggered.

LX16167,0000049 –19–01NOV02–1/1

Diagnostics The following are possible causes: • Defective coolant temperature sender B08. • Defective line connection (cable 329). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BIF-15

6020 to 6920S tractors 022204

PN=259

211 BIF 15

BIF Diagnostic Trouble Codes 2 Check coolant temperature

2.1 Coolant temperature in °C:

OK: • Diagnosis completed.

BIF temperature gauge: • Access address BIF 34 and compare the displayed temperature with the actual temperature of the coolant: 211 BIF 16

BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113 ECU temperature gauge (only tractors with Level 4 engine control unit/Bosch VP44 injection pump): • Access address ECU 20 and compare the temperature displayed on the BIF display:

• Type of error indicates a loose contact: GO TO: Circuit/harness test for coolant temperature sender (B08) NOT OK: Address BIF 34 displays the wrong value: GO TO 2.2.

ECU 20 –– Status, coolant temperature sender (B56) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113 2.2 Coolant temperature in volts:

OK: GO TO 3.

Access address BIF 18:

NOT OK: GO TO 2.3

BIF 18 –– Voltage, coolant temperature sender (B08)—Specification Coolant temperature:—Voltage ............................................... between 0.5 and 4.0 volts

2.3 Check sender supply voltage (cable 329):

OK: GO TO 3.

Access address BIF 18:

NOT OK: GO TO: Circuit/harness test for coolant temperature sender (B08)

BIF 18 –– Voltage, coolant temperature sender (B08)—Specification Sender B08 separated from the wiring harness (at an operating voltage of 12 volts):—Voltage ....................................................................... between 3.0 and 4.0 volts Use a multimeter to measure between pin A and B at connector X262 (wiring harness W02): Voltage, coolant temperature sender (B08) at connector X262—Specification At a BIF operating voltage of 12 volts:— Voltage .................................................................................... between 3.0 and 4.0 volts

– – –1/1

3 Checking coolant temperature sender (B08) in diagnostic address BIF 34

Access address BIF 34: BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113

OK: BIF temperature reading does correspond to actual coolant temperature NOT OK: BIF temperature reading does NOT correspond to actual engine coolant temperature: GO TO: Circuit/harness test for coolant temperature sender (B08) – – –1/1

TM4726 (01NOV03)

211-BIF-16

6020 to 6920S tractors 022204

PN=260

BIF Diagnostic Trouble Codes

BIF 000110.16 — Coolant Temperature High

Diagnostic trouble code BIF 000110.16 is saved when the engine coolant temperature is between 110°C

(230°F) and 113°C (235°F). This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 BIF 17

LX16167,000004A –19–01SEP03–1/1

Diagnostics The following are possible causes: • • • • • •

Heavy load on the engine. Dirty radiator screen. Broken fan belt. Low coolant level. Defective viscous fan drive. Defective coolant temperature sender B08 (erroneous valid/maximum temperature).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 230-20-001, Fuel, Air Intake and Cooling Systems, Cold-Weather Starting Aids - Description of Components — Summary of References. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

TM4726 (01NOV03)

211-BIF-17

6020 to 6920S tractors 022204

PN=261

BIF Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 BIF 18 1.2 Clean dirty cooling system elements and perform a visual inspection of the cooling system: ❒ ❒ ❒ ❒ ❒

Check for leaks. Check engine oil and coolant level. Check filter. Check for visible damage at the radiator, the viscous fan drive and the drive belt. Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: Visual inspection does not reveal any problems: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

2 Isolate or identify the cause of the overheating

Ask the operator: • • • •

How does the machine function? Fault comes along with lack of performance, unusual noise? When does the fault occur? During what type of work does the fault occur? – Fault comes along with unusual noise? – Fault occurs during work with special implement? (Does the implement comply fully with technical specifications?) • Does the tractor comply fully with technical specifications?

OK: Internal engine problem is the cause for the problem: GO TO 6. OK: Cooling system problem is the cause for the problem: GO TO 5. NOT OK: Problem/cause cannot be isolated: GO TO 3.

– – –1/1

3 Check coolant temperature sender

BIF temperature gauge: • Access address BIF 34 and compare the displayed temperature with the actual temperature of the coolant: BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113 ECU temperature gauge (only tractors with Level 4 engine control unit/Bosch VP44 injection pump): • Access address ECU 20 and compare the temperature displayed on the BIF display:

OK: BIF temperature reading does correspond to actual engine coolant temperature. Check cooling system, GO TO 5. NOT OK: BIF temperature reading does NOT correspond to actual engine coolant temperature: GO TO 4.

ECU 20 –– Status, coolant temperature sender (B56) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113

– – –1/1

TM4726 (01NOV03)

211-BIF-18

6020 to 6920S tractors 022204

PN=262

BIF Diagnostic Trouble Codes 4 Checking coolant temperature sender (B08) in diagnostic address BIF 34

Access address BIF 34: BIF 34 –– Status, coolant temperature sender (B08) in °C—Specification Coolant temperature:—Temperature (in °C) ............................................................................................... between -040 and +113

OK: If BIF temperature reading does correspond to actual engine coolant temperature, GO TO 5. NOT OK: BIF 211 temperature reading does BIF NOT correspond to actual 19 engine coolant temperature: GO TO: Circuit/harness test for coolant temperature sender (B08) – – –1/1

5 Cooling system diagnosis

Following items can cause the engine to overheat: • • • • • • • • • • • • • •

Loose or broken fan belt. Dirty radiator Low coolant level. Low crankcase oil level Engine overloaded. Defective viscous fan drive, see Reference 230-15-090, Checking the Viscous Fan Drive. Defective radiator cap, see Reference 230-15-070, Testing Cooling System for Leaks. Defective head gasket, see reference “Check for Head Gasket Failures”, Base Engine CTM. Injection pump not correctly timed. Faulty thermostat, see reference “Inspect Thermostat and Test Opening Temperature”, Base Engine CTM Faulty coolant pump, see reference “Inspect, Clean, and Measure Water Pump Parts”, Base Engine CTM. Corroded coolant passages. Improper grade of fuel. Excessive fuel delivery, see reference “Diagnosing Fuel System Malfunctions”, Mechanical Fuel System CTM.

OK: Perform engine diagnosis: GO TO 6. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

6 Engine diagnosis

Perform engine diagnosis, see reference in Base Engine CTM.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

BIF 000126.15 — Hydraulic Oil Filter Dirty

Diagnostic code BIF 000126.15 is saved when the hydraulic oil filter is dirty. The first filter alarm level is triggered when the transmission oil temperature is above 28 °C (82 °F), the engine speed over 700 rpm

and the differential filter pressure over 350 kPa (3.5 bar; 51 psi) +/- 20 kPa (0.2 bar; 2.9 psi). Change the hydraulic oil filter. This diagnostic trouble code triggers the alarm level: “Information”.

LX16167,000004B –19–03APR02–1/1

TM4726 (01NOV03)

211-BIF-19

6020 to 6920S tractors 022204

PN=263

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 BIF 20

• • • •

Dirty hydraulic oil filter. Problem in the hydraulic oil filter circuit. Defective hydraulic oil filter B111. Defective signal lead (cable 509).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 255-20-001, PowrQuad , PowrQuad Plus and AutoQuad Transmission—Summary of References • Reference 270-20-001, PFC Hydraulic System — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

Perform a visual inspection of hydraulic oil filter circuit:

NOT OK: Recondition as needed and repeat this test.

❒ Check oil filter for external damage. ❒ Check also condition of hydraulic oil filter hoses: • Replace hoses that are cracked, split or otherwise in poor condition. ❒ Fault occurred after oil service? • Does the oil have the correct viscosity? ❒ Check condition of hydraulic oil and remedy fault if necessary. • Water in oil (milky)? • Filter failure (dirty)? • Metal particles (mechanical failure)?

– – –1/1

TM4726 (01NOV03)

211-BIF-20

6020 to 6920S tractors 022204

PN=264

BIF Diagnostic Trouble Codes 2 Check Hydraulic Oil Filter

• Replace the hydraulic oil filter. • Operate engine at wide open throttle for 10 - 15 seconds with oil temperature above 40°C (104°F). Filter lamp should stay OFF.

OK: Diagnosis completed.

Access address BIF 13:

NOT OK: Oil temperature above 40°C (104°F): GO TO:

BIF 13 –– Status, Hydraulic Oil Filter Sender (B111)—Specification Engine OFF:—Status (Switch OPEN) ......................................................................... X0X Engine ON (switch open = filter clean):— Status .......................................................................................................................... X0X

• On tractors with AutoPowr/IVT transmission, Circuit/harness test for restriction warning switch at hydraulic oil filter (B111) (AutoPowr/IVT transmission). • On tractors with PowrQuad and PowrQuad Plus transmissions, Circuit/harness test for restriction warning switch at hydraulic oil filter (B111). IF OK: GO TO 3.

– – –1/1

3 Check Hydraulic Oil Filter Circuit

Specifications, differential pressure switch for hydraulic oil filter—Specification Restricted filter indicator:—Switch point 1 at a differential pressure of ............................... 350 kPa +/- 20 kPa (3.5 bar +/- 0.2 bar; 51 psi +/- 3psi) Filter restriction indicator:—Switch point 2 at a differential pressure of .......................... 425 kPa +/- 25 kPa (4.5 bar +/- 0.25 bar; 65 psi +/- 4psi)

OK: Check hydraulic system. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

BIF 000126.16 — Transmission/Hydraulic Oil Filter Dirty

Diagnostic trouble code BIF 000126.16 is saved when a filter is dirty: - Tractors with PowrQuad Plus, AutoQuad or AutoQuad Plus transmissions: filter restriction signal from transmission or hydraulic oil filter.

- Tractors with AutoPowr/IVT transmission: filter restriction signal from hydraulic oil filter. Replace transmission/hydraulic oil filter. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,000004C –19–01SEP03–1/1

TM4726 (01NOV03)

211-BIF-21

6020 to 6920S tractors 022204

PN=265

211 BIF 21

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 BIF 22

• • • •

Dirty hydraulic or transmission oil filter. Problem in the oil filter circuit. Defective hydraulic oil filter sender (B111) or transmission oil filter (B07). Defective signal lead (cable 606).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 255-20-001, PowrQuad , PowrQuad Plus and AutoQuad Transmission—Summary of References • Reference 270-20-001, PFC Hydraulic System — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

Visual inspection of transmission/hydraulic filter circuit:

NOT OK: Recondition as needed and repeat this test.

❒ Check oil filter for external damage. ❒ Check also condition of hydraulic oil filter hoses: • Replace hoses that are cracked, split or otherwise in poor condition. ❒ Fault occurred after oil service? • Does the oil have the correct viscosity? ❒ Check condition of hydraulic oil and remedy fault if necessary. • Water in oil (milky)? • Filter failure (dirty)? • Metal particles (mechanical failure)?

– – –1/1

TM4726 (01NOV03)

211-BIF-22

6020 to 6920S tractors 022204

PN=266

BIF Diagnostic Trouble Codes 2 Checking the restriction switch in hydraulic oil filter (B111) in diagnostic addresses BIF 12 and 13

Access address BIF 12:

OK: Diagnosis completed.

BIF 12 –– Status, restriction switch in hydraulic oil filter (B111)—Specification Filter clogged:—Status (pressure) ............................ X1X (Pressure in circuit, Sender is CLOSED) Filter not clogged:—Status (pressure) ................. X0X (No pressure in circuit, Sender is OPEN) BIF 13 –– Status, oil filter indicator light sender (B07)—Specification Filter clogged:—Status (pressure) ............................ 1XX (Pressure in circuit, Sender is CLOSED) Filter not clogged:—Status (pressure) ................. 0XX (No pressure in circuit, Sender is OPEN)

NOT OK: GO TO: • On tractors with AutoPowr/IVT transmission, Circuit/harness test for restriction warning switch at hydraulic oil filter (B111) (AutoPowr/IVT transmission). • On tractors with PowrQuad and PowrQuad Plus transmissions, Circuit/harness test for restriction warning switch at hydraulic oil filter (B111). IF OK: GO TO 3.

– – –1/1

3 Checking the oil filter circuit

3.1 - Transmission oil filter circuit: The oil filter relief valve is activated (opened) by a restricted oil filter (increased differential pressure before oil filter opens relief valve and the oil channel to the filter restriction switch B07). Specifications, transmission oil filter—Specification Opening pressure of filter relief valve:— Differential pressure ......................................................... max. 300 kPa (3.0 bar; 44 psi) Closing pressure of pressure switch B07:—Pressure .............................................................. max. 760 kPa (7.6 bar; 110 psi) Opening pressure of pressure switch B07:—Pressure ................................................................ max. 450 kPa (4.5 bar; 65 psi)

OK: Check transmission/hydraulic system. NOT OK: Recondition as required and carry out an operational test.

3.2 - Hydraulic oil filter circuit: The increasing differential pressure before the filter directly activates differential pressure switch B111. Specifications, differential pressure switch for hydraulic oil filter—Specification Restricted filter indicator:—Switch point 1 at a differential pressure of ............................... 350 kPa +/- 20 kPa (3.5 bar +/- 0.2 bar; 51 psi +/- 3psi) Filter restriction indicator:—Switch point 2 at a differential pressure of .......................... 425 kPa +/- 25 kPa (4.5 bar +/- 0.25 bar; 65 psi +/- 4psi)

– – –1/1

TM4726 (01NOV03)

211-BIF-23

6020 to 6920S tractors 022204

PN=267

211 BIF 23

BIF Diagnostic Trouble Codes

BIF 000127.00 — Transmission Oil Pressure Low

211 BIF 24

Diagnostic trouble code BIF 000127.00 is saved when the instrument panel does not register any transmission oil pressure. The sender of the

transmission oil pressure warning light is closed at an engine speed of 700 rpm. The diagnostic trouble code triggers the alarm level: “Stop Engine”.

LX16167,000004D –19–03APR02–1/1

Diagnostics The following are possible causes: • • • •

Filter problem, diagnostic trouble code BIF 000126.15 and/or BIF 000126.16 take priority. Defective transmission oil pressure sender (B31). Defective sender line connection (cable 515 or 310). Transmission oil pressure too low because of defective transmission oil pump, air intake/pressure circuit (check suction screen).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 255-20-001, PowrQuad , PowrQuad Plus and AutoQuad Transmission—Summary of References

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Visual inspection of the transmission circuit: ❒ ❒ ❒ ❒

Check Check Check Check

transmission oil level. for leaks. filter. relevant oil tubes and pipes for bends and dents.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 1.2

OK: No visual damage of transmission circuit recognizable: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-BIF-24

6020 to 6920S tractors 022204

PN=268

BIF Diagnostic Trouble Codes 2 Checking transmission oil pressure

2.1 - Transmission oil pressure at sender B31:

OK: • Diagnosis completed.

Access address BIF 12: BIF 12 –– Status, transmission oil pressure sender (B31)—Specification Engine OFF (switch closed):—Status ......................................................................... 1XX Engine RUNNING (Switch is opened by pressure):—Status ....................................................................................................... 0XX

• Type of error indicates a loose contact: GO TO: Circuit/harness test for transmission oil pressure sender (B31). NOT OK: • Display shows 0XX in address BIF 12 when engine OFF: Check circuit of sender, GO TO: Circuit/harness test for transmission oil pressure sender (B31). • Display shows 1XX in address BIF 12 when engine OFF: GO TO 2.2

2.2 - Transmission enable pressure at sender B105: • Perform the test while the engine is running and range shift lever is in neutral. Access address EPC 13: EPC 13 — Pressure, enable switch (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors

OK: Replace transmission oil pressure sender (B31) and repeat the test. NOT OK: GO TO 3.

– – –1/1

3 Isolate or identify the cause of the fault

Ask the operator: • How does the machine function? • During what type of work does the fault occur? – Shift problem. – PTO, differential lock and MFWD work perfectly? – Fault comes along with unusual noise? – Fault occurs during work with special implement? (Does the implement comply fully with technical specifications?) • Does the tractor comply fully with technical specifications? Carry out a test drive and ask the operator:

NOT OK: Fault indicates a problem with the transmission oil circuit: GO TO 4. NOT OK: Error indicates a problem with the PTO, differential lock or FWD: GO TO 5. NOT OK: Problem/cause cannot be isolated: GO TO 4. – – –1/1

TM4726 (01NOV03)

211-BIF-25

6020 to 6920S tractors 022204

PN=269

211 BIF 25

BIF Diagnostic Trouble Codes 4 PowrQuad transmission system check

See Reference 255-15-001, PowrQuad Transmission—System Check. For information on test ports, see Reference 255-15-002, PowrQuad Transmission— Test Ports.

OK: Perform major system checks in the transmission circuit: GO TO 5. NOT OK: Recondition as required and carry out an operational test.

211 BIF 26

– – –1/1

5 System check for PTO, differential lock and FWD

5.1 - Operational Checks:

OK: Diagnosis completed.

See Reference 256-10-001, Power Train without Transmission — Operational Check. NOT OK: GO TO 5.2

5.2 - System Checks:

OK: Diagnosis completed.

See Reference 256-15-001, Drive Systems — System Check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

BIF 000167.16 — D+ Voltage High (Engine Running)

Diagnostic trouble code BCU 000167.16 is saved in the following instances: The D+ voltage of the alternator is more than 15.5 volts at an engine speed of more than 800 rpm.

The difference between the D+ voltage (pin 25) and the system voltage (pin 14) is more than 2 volts. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,000004E –19–03APR02–1/1

TM4726 (01NOV03)

211-BIF-26

6020 to 6920S tractors 022204

PN=270

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: • • • •

Defective alternator G02. Defective battery. High current requirements. Defective D+ voltage line to instrument panel (cable 326/306).

211 BIF 27

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Check Alternator D+ Voltage and Tractor System Voltage (Battery Voltage)

Access address BIF 32: BIF 32 –– Voltage, Alternator D+ Voltage—Specification Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts Access address BCU 32: BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

OK: No voltage difference (more than 2 volts) between the display in BIF 32 and BCU 32: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/Harness test for alternator D+ voltage (B03) NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-BIF-27

6020 to 6920S tractors 022204

PN=271

BIF Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

211 BIF 28

OK: Check the electrical connections of the charging system for bad, loose, widened or corroded contacts. NOT OK: Recondition as needed and repeat the test.

– – –1/1

BIF 000167.17 — D+ Voltage Too Low (Engine Speed Over 1500 rpm)

Diagnostic trouble code BCU 000167.17 is saved if the D+ voltage of the alternator is less than 12.5 volts at an engine speed of more than 1500 rpm. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,000004F –19–03APR02–1/1

Diagnostics The following are possible causes: • Broken or slipping V-belts. • Defective relay for alternator K02/2. – Diagnostic trouble code BCU 302124.31 takes priority. • Defective alternator G02. • Defective battery. • High current requirements. • Defective D+ voltage line to instrument panel (cable 326/306). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

TM4726 (01NOV03)

211-BIF-28

6020 to 6920S tractors 022204

PN=272

BIF Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2 BIF 29

Perform a visual inspection of the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts. ❒ Check ground connections between battery/engine and cab. • Check mounting surfaces for corrosion / paint and loose mounting bolts.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

2 Check Alternator D+ Voltage and Tractor System Voltage (Battery Voltage)

OK: • Diagnosis completed.

Access address BIF 32: BIF 32 –– Voltage, Alternator D+ Voltage—Specification Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts Access address BCU 32: BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

• Type of error indicates a loose contact: GO TO: Circuit/Harness test for alternator D+ voltage (B03) NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check the electrical connections of the charging system for bad, loose, widened or corroded contacts. NOT OK: Recondition as needed and repeat the test.

– – –1/1

TM4726 (01NOV03)

211-BIF-29

6020 to 6920S tractors 022204

PN=273

BIF Diagnostic Trouble Codes

BIF 000167.18 — D+ Voltage Too Low (Engine Speed Up to 1500 rpm)

211 BIF 30

Diagnostic trouble code BCU 000167.18 is saved if the D+ voltage of the alternator is less than 12.5 volts at an engine speed between 800 rpm and 1500 rpm. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000050 –19–03APR02–1/1

Diagnostics The following are possible causes: • Broken or slipping V-belts. • Defective relay for alternator K02/2. – Diagnostic trouble code BCU 302124.31 takes priority. • Defective alternator G02. • Defective battery. • High current requirements. • Defective D+ voltage line 326/306 to instrument panel. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

Perform a visual inspection of the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts. ❒ Check ground connections between battery/engine and cab. • Check mounting surfaces for corrosion / paint and loose mounting bolts.

NOT OK: Recondition as required and carry out an operational test.

211-BIF-30

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=274

BIF Diagnostic Trouble Codes 2 Check Alternator D+ Voltage and Tractor System Voltage (Battery Voltage)

OK: • Diagnosis completed.

Access address BIF 32: BIF 32 –– Voltage, Alternator D+ Voltage—Specification Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts Access address BCU 32: BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

• Type of error indicates a loose contact: GO TO: Circuit/Harness test for alternator D+ voltage (B03) NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check the electrical connections of the charging system for bad, loose, widened or corroded contacts. NOT OK: Recondition as needed and repeat the test.

– – –1/1

BIF 000168.16 — System Voltage Too High (Engine Running)

Diagnostic trouble code BIF 000168.16 is saved if the system voltage (battery voltage) is more than 15.5 volts at an engine speed of more than 512 rpm. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000051 –19–03APR02–1/1

TM4726 (01NOV03)

211-BIF-31

6020 to 6920S tractors 022204

PN=275

211 BIF 31

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 BIF 32

• Use of a jumper cable to start the vehicle. • Defective battery. • Defective alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Check system/battery voltage

Access address BCU 32:

OK: Diagnosis completed.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (BIF operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Recondition as required.

– – –1/1

TM4726 (01NOV03)

211-BIF-32

6020 to 6920S tractors 022204

PN=276

BIF Diagnostic Trouble Codes

BIF 000168.17 — System Voltage Too Low (Engine Speed Over 1500 rpm)

Diagnostic trouble code BIF 000168.17 is saved if the system voltage (battery voltage) is less than 12.5 volts at an engine speed of more than 1500 rpm. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

211 BIF 33

LX16167,0000052 –19–01SEP02–1/1

Diagnostics The following are possible causes: • • • • •

Broken or slipping V-belts. Defective alternator G02. Defective battery. High current requirements. Defective line connection between the BIF and the ELX relay/battery.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

Perform a visual inspection of the battery, the alternator and the drive belt.

NOT OK: Recondition as required and carry out an operational test.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts. ❒ Check ground connections between battery/engine and cab. • Check mounting surfaces for corrosion / paint and loose mounting bolts.

– – –1/1

TM4726 (01NOV03)

211-BIF-33

6020 to 6920S tractors 022204

PN=277

BIF Diagnostic Trouble Codes 2 Check system/battery voltage

211 BIF 34

Access address BCU 32:

OK: GO TO 4.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (BIF operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Recondition as needed and repeat the test.

– – –1/1

4 Check power supply (cables 992 and 050) of basic informator

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-003, SE1 Starting Motor and Charging Circuit (AutoPowr/IVT Transmission). • Reference 240-10A-050, SE1 Starting and Charging Circuit (PowrQuad Plus or AutoQuad Transmission). • Reference 240-10-004, SE2 Basic Informator. For component location and pin arrangement, see: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-BIF-34

6020 to 6920S tractors 022204

PN=278

BIF Diagnostic Trouble Codes

BIF 000168.18 — System Voltage Too Low (Engine Speed Up to 1500 rpm)

Diagnostic trouble code BIF 000168.18 is saved if the system voltage (battery voltage) is less than 11.2 volts at an engine speed between 512 rpm and 1500 rpm.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 BIF 35

LX16167,0000053 –19–01SEP02–1/1

Diagnostics The following are possible causes: • • • • •

Broken or slipping V-belts. Defective alternator G02. Defective battery. High current requirements. Defective line connection between the BIF and the ELX relay/battery.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

Perform a visual inspection of the battery, the alternator and the drive belt.

NOT OK: Recondition as required and carry out an operational test.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts. ❒ Check ground connections between battery/engine and cab. • Check mounting surfaces for corrosion / paint and loose mounting bolts.

– – –1/1

TM4726 (01NOV03)

211-BIF-35

6020 to 6920S tractors 022204

PN=279

BIF Diagnostic Trouble Codes 2 Check system/battery voltage

211 BIF 36

Access address BCU 32:

OK: GO TO 4.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (BIF operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Recondition as needed and repeat the test.

– – –1/1

4 Check power supply (cables 992 and 050) of basic informator

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-003, SE1 Starting Motor and Charging Circuit (AutoPowr/IVT Transmission). • Reference 240-10A-050, SE1 Starting and Charging Circuit (PowrQuad Plus or AutoQuad Transmission). • Reference 240-10-004, SE2 Basic Informator. For component location and pin arrangement, see: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-BIF-36

6020 to 6920S tractors 022204

PN=280

BIF Diagnostic Trouble Codes

BIF 000177.00 — Transmission Oil Temperature Very High

Diagnostic trouble code BIF 000177.00 is saved when the transmission oil temperature is more than 105°C

(221°F). This diagnostic trouble code triggers the alarm level: “Stop Engine”.

LX16167,0000054 –19–01SEP03–1/1

Diagnostics The following are possible causes: • • • • •

Heavy hydraulic load. Low hydraulic oil level. Restricted filter. Restricted oil cooler line. Defective transmission oil temperature sender B60 (erroneous valid/maximum temperature range).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 230-20-001, Fuel, Air Intake and Cooling Systems, Cold-Weather Starting Aids - Description of Components — Summary of References. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 255-20-001, PowrQuad , PowrQuad Plus and AutoQuad Transmission—Summary of References • Reference 270-20-001, PFC Hydraulic System — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-BIF-37

6020 to 6920S tractors 022204

PN=281

211 BIF 37

BIF Diagnostic Trouble Codes 1 Preliminary tests

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 BIF 38 1.2 Perform a visual inspection of the transmission/hydraulic system: ❒ ❒ ❒ ❒ ❒ ❒

Check Check Check Check Check Check Drive. ❒ Check ❒ Check

and clean side panels, front cover and screens (if equipped). transmission oil level. for leaks. filter. relevant oil tubes and pipes for bends. the viscous fan drive: see Reference 230-15-090, Checking the Viscous Fan

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: No visual damage of cooling system recognizable: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

drive belts. for signs of damage at the oil cooling system. – – –1/1

2 Isolate or identify the cause of the overheating

Ask the operator: • How does the machine function? • When does the fault occur? • During what type of work does the fault occur? – Fault comes along with unusual noise? – Fault occurs during work with special implement? (Does the implement comply fully with technical specifications?) • Does the tractor comply fully with technical specifications? • Does the BIF temperature reading correspond to the actual transmission oil temperature?

OK: Problem identified in hydraulic circuit: GO TO 7. OK: Problem identified in brake circuit: GO TO 8. OK: Problem identified in the transmission circuit: GO TO 6. NOT OK: Problem (cause) cannot be identified: GO TO 5. NOT OK: Temperature reading of BIF does not correspond to actual transmission oil temperature: GO TO 3.

– – –1/1

3 Checking the temperature of the transmission oil

Access address BIF 33 and compare the displayed temperature with the actual temperature of the transmission oil: BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

OK: BIF temperature reading is equivalent to actual transmission temperature: Perform operational checks, GO TO 5. NOT OK: BIF temperature reading is NOT equivalent to actual transmission temperature: GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-BIF-38

6020 to 6920S tractors 022204

PN=282

BIF Diagnostic Trouble Codes 4 Checking hydraulic oil temperature sender (B60) in diagnostic address BIF 33

Access address BIF 33:

OK: Diagnosis completed.

BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

NOT OK: Address BIF 33 displays the wrong value. GO TO: Circuit/harness 211 test for hydraulic oil BIF temperature sender 39 (B60).

– – –1/1

5 Operational checks Isolate or identify the cause of the overheating: for hydraulic/transmission • Reference 255-10-001, PowrQuad Transmission — Operational Check. system • Reference 270-10-010, Hydraulic System Load Check. • Reference 270-10-020, Hitch Control - Operational Check. • Reference 270-10-040, SCV - Operational Checks.

OK: No problem identified during check: Perform system checks GO TO 6. NOT OK: Problem in the transmission circuit: GO TO 6. NOT OK: Problem identified in the hydraulic circuit: GO TO 7.

– – –1/1

6 PowrQuad transmission system check

See Reference 255-15-001, PowrQuad Transmission—System Check.

OK: GO TO 7.

For information on test ports, see Reference 255-15-002, PowrQuad Transmission— Test Ports.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

7 System check for PFC hydraulic system

See Reference 270-15-012, Checking the PFC Hydraulic System.

OK: GO TO 8. NOT OK: Recondition as required and carry out an operational test. – – –1/1

8 Checking the brake system

After a test-drive with extensive checks, check for signs of overheating at the brake housings.

OK: Diagnosis completed.

See Reference 260-15-001, Steering and Brakes, Tests and Adjustments - Summary of References

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-BIF-39

6020 to 6920S tractors 022204

PN=283

BIF Diagnostic Trouble Codes

BIF 000177.03 — Transmission Oil Temperature Sender, Shorted or Open Circuit

211 BIF 40

Diagnostic trouble code BIF 000177.03 is saved when the instrument panel registers an unlikely temperature (transmission oil temperature in maximum minus range) and therefore indicates that there is an open or

a short circuit to the supply voltage (battery voltage) in the sender circuit. The alarm level: “Information” is triggered.

LX16167,0000055 –19–01NOV02–1/1

Diagnostics The following are possible causes: • Defective transmission oil temperature sender B60. • Defective line connection (cable 602 or 050). • Defective/bad ground connection via ground point XGND4 to XGND43. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BIF-40

6020 to 6920S tractors 022204

PN=284

BIF Diagnostic Trouble Codes 2 Check transmission oil temperature display

2.1 Transmission oil temperature in °C: Access address BIF 33 and compare the displayed temperature with the actual temperature of the transmission oil: BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/harness test for hydraulic oil temperature sender (B60). NOT OK: Address BIF 33 displays the wrong value: GO TO 2.2.

2.2 Transmission oil temperature in volts: Access address BIF 15:

OK: GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

BIF 15 –– Voltage, transmission oil temperature sender (B60)—Specification Transmission oil temperature:—Voltage ................................. between 0.5 and 4.0 volts

NOT OK: GO TO 2.3

2.3 Check sender supply voltage (cable 602):

OK: GO TO 3.

Access address BIF 15:

NOT OK: GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

BIF 15 –– Voltage, transmission oil temperature sender (B60)—Specification Sender B60 separated from the wiring harness (at an operating voltage of 12 volts):—Voltage ....................................................................... between 3.0 and 4.0 volts Use a multimeter to measure between pins A and B at connector X307 (wiring harness W28): Voltage, transmission oil temperature sender (B60) at Connector X307— Specification At a BIF operating voltage of 12 volts:— Voltage .................................................................................... between 3.0 and 4.0 volts

– – –1/1

3 Checking hydraulic oil temperature sender (B60) in diagnostic address BIF 33

Access address BIF 33:

OK: Diagnosis completed.

BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

NOT OK: Address BIF 33 displays the wrong value. GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

– – –1/1

TM4726 (01NOV03)

211-BIF-41

6020 to 6920S tractors 022204

PN=285

211 BIF 41

BIF Diagnostic Trouble Codes

BIF 000177.04 — Transmission Oil Temperature Sender, Grounded Circuit

211 BIF 42

Diagnostic trouble code BIF 000177.04 is saved when the instrument panel registers an unlikely temperature (transmission oil temperature at 125 °C (257 °F) while

cold) and therefore indicates that there is a short to ground in the sender circuit. The alarm level: “Information” is triggered.

LX18600,0000212 –19–18SEP03–1/1

Diagnostics The following are possible causes: • Defective transmission oil temperature sender B60. • Defective line connection (cable 602). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-BIF-42

6020 to 6920S tractors 022204

PN=286

BIF Diagnostic Trouble Codes 2 Check transmission oil temperature display

2.1 Transmission oil temperature in °C: Access address BIF 33 and compare the displayed temperature with the actual temperature of the transmission oil: BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/harness test for hydraulic oil temperature sender (B60). NOT OK: Address BIF 33 displays the wrong value: GO TO 2.2.

2.2 Transmission oil temperature in volts: Access address BIF 15:

OK: GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

BIF 15 –– Voltage, transmission oil temperature sender (B60)—Specification Transmission oil temperature:—Voltage ................................. between 0.5 and 4.0 volts

NOT OK: GO TO 2.3

2.3 Check sender supply voltage (cable 602):

OK: GO TO 3.

Access address BIF 15:

NOT OK: GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

BIF 15 –– Voltage, transmission oil temperature sender (B60)—Specification Sender B60 separated from the wiring harness (at an operating voltage of 12 volts):—Voltage ....................................................................... between 3.0 and 4.0 volts Use a multimeter to measure between pins A and B at connector X307 (wiring harness W28): Voltage, transmission oil temperature sender (B60) at Connector X307— Specification At a BIF operating voltage of 12 volts:— Voltage .................................................................................... between 3.0 and 4.0 volts

– – –1/1

3 Checking hydraulic oil temperature sender (B60) in diagnostic address BIF 33

Access address BIF 33:

OK: Diagnosis completed.

BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

NOT OK: Address BIF 33 displays the wrong value. GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

– – –1/1

TM4726 (01NOV03)

211-BIF-43

6020 to 6920S tractors 022204

PN=287

211 BIF 43

BIF Diagnostic Trouble Codes

BIF 000177.16 — Transmission Oil Temperature High

211 BIF 44

Diagnostic trouble code BIF 000177.16 is saved when the transmission oil temperature is between 101°C

(214°F) and 105°C (221°F). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX16167,0000057 –19–01SEP03–1/1

Diagnostics The following are possible causes: • • • • •

Heavy hydraulic load. Low hydraulic oil level. Restricted filter. Restricted oil cooler line. Defective transmission oil temperature sender B60 (erroneous valid/maximum temperature range).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 230-20-001, Fuel, Air Intake and Cooling Systems, Cold-Weather Starting Aids - Description of Components — Summary of References. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 255-20-001, PowrQuad , PowrQuad Plus and AutoQuad Transmission—Summary of References • Reference 270-20-001, PFC Hydraulic System — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-BIF-44

6020 to 6920S tractors 022204

PN=288

BIF Diagnostic Trouble Codes 1 Preliminary tests

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Perform a visual inspection of the transmission/hydraulic system: ❒ ❒ ❒ ❒ ❒ ❒

Check Check Check Check Check Check Drive. ❒ Check ❒ Check

and clean side panels, front cover and screens (if equipped). transmission oil level. for leaks. filter. relevant oil tubes and pipes for bends. the viscous fan drive: see Reference 230-15-090, Checking the Viscous Fan

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2 BIF 45 OK: No visual damage of cooling system recognizable: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

drive belts. for signs of damage at the oil cooling system. – – –1/1

2 Isolate or identify the cause of the overheating

Ask the operator: • How does the machine function? • When does the fault occur? • During what type of work does the fault occur? – Fault comes along with unusual noise? – Fault occurs during work with special implement? (Does the implement comply fully with technical specifications?) • Does the tractor comply fully with technical specifications? • Does the BIF temperature reading correspond to the actual transmission oil temperature?

OK: Problem identified in hydraulic circuit: GO TO 7. OK: Problem identified in brake circuit: GO TO 8. OK: Problem identified in the transmission circuit: GO TO 6. NOT OK: Problem (cause) cannot be identified: GO TO 5. NOT OK: Temperature reading of BIF does not correspond to actual transmission oil temperature: GO TO 3.

– – –1/1

3 Checking the temperature of the transmission oil

Access address BIF 33 and compare the displayed temperature with the actual temperature of the transmission oil: BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

OK: BIF temperature reading is equivalent to actual transmission temperature: Perform operational checks, GO TO 5. NOT OK: BIF temperature reading is NOT equivalent to actual transmission temperature: GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-BIF-45

6020 to 6920S tractors 022204

PN=289

BIF Diagnostic Trouble Codes 4 Checking hydraulic oil temperature sender (B60) in diagnostic address BIF 33

Access address BIF 33:

OK: Diagnosis completed, GO TO 5.

BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature (050 is equivalent to 50 °C) .................................. between -040 and +105

211 BIF 46

NOT OK: Address BIF 33 displays the wrong value. GO TO: Circuit/harness test for hydraulic oil temperature sender (B60).

– – –1/1

5 Operational checks Isolate or identify the cause of the overheating: for hydraulic/transmission • Reference 255-10-001, PowrQuad Transmission — Operational Check. system • Reference 270-10-010, Hydraulic System Load Check. • Reference 270-10-020, Hitch Control - Operational Check. • Reference 270-10-040, SCV - Operational Checks.

OK: No problem identified during check: Perform system checks GO TO 6. NOT OK: Problem in the transmission circuit: GO TO 6. NOT OK: Problem identified in the hydraulic circuit: GO TO 7.

– – –1/1

6 PowrQuad transmission system check

See Reference 255-15-001, PowrQuad Transmission—System Check.

OK: GO TO 7.

For information on test ports, see Reference 255-15-002, PowrQuad Transmission— Test Ports.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

7 System check for PFC hydraulic system

See Reference 270-15-012, Checking the PFC Hydraulic System.

OK: GO TO 8. NOT OK: Recondition as required and carry out an operational test. – – –1/1

8 Checking the brake system

After a test-drive with extensive checks, check for signs of overheating at the brake housings.

OK: Diagnosis completed.

See Reference 260-15-001, Steering and Brakes, Tests and Adjustments - Summary of References

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-BIF-46

6020 to 6920S tractors 022204

PN=290

BIF Diagnostic Trouble Codes

BIF 000186.16 — INFORMATION FOR OPERATOR: Warning, Rear PTO Speed

Diagnostic trouble code BIF 000186.16 is intended only to provide information. It appears together with a visual warning (540, 540E or 1000 rpm light and a flashing yellow CAUTION light) whenever the PTO

speed exceeds 620 (+/-10). This warning is independent of the selected PTO speed (540, 540E or 1000 rpm).

LX16167,0000058 –19–03APR02–1/1

BIF 000190.02 — No Signal From Engine Speed Sender

Diagnostic trouble code BIF 000190.02 is saved when no engine speed signal is transmitted to the instrument panel (via the 29 BIT CAN BUS) while the ignition is ON and engine oil pressure exists. This diagnostic trouble code does not necessarily have any real

meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,0000059 –19–03APR02–1/1

Diagnostics The following are possible causes: • Defective engine speed sender. – Engine speed sender B01 for tractors without engine control unit or with ECU level 1: Diagnostic trouble code BCU 000190.02 takes priority. – Engine speed sender B72 or B74 for tractors with ECU level 4 (Bosch VP44 injection pump): Diagnostic trouble codes ECU 000636.02, ECU 000636.08, ECU 000636.10, ECU 000637.02, ECU 000637.08 and/or ECU 000637.10 take priority. • Defective engine speed sender (B01) line connections (lead 531 or 325). • Defective engine oil pressure sender (BIF erroneously receives an oil pressure signal and expects a speed signal). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-BIF-47

6020 to 6920S tractors 022204

PN=291

211 BIF 47

BIF Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 BIF 48

– – –1/1

2 Check Engine Speed Sender

Tractors without engine control unit or with Level 1 ECU:

OK: GO TO 3.

Access address BCU 03:

NOT OK: Tractors without engine control unit or with Level 1 ECU: Check engine speed sender, GO TO: Circuit/Harness Test for Engine Speed Sender (B01). • Tractors with Level 4 ECU: Process ECU diagnostic trouble codes/check sender circuit (refer to corresponding CTM).

BCU 03 –– Status, Engine Speed Sender (B01)—Specification No signal detected (engine OFF):— Status ....................................................................................................................... X0XX Sender signal detected (engine running):—Status ...................................................................................................... X1XX Tractors with Level 4 ECU (Bosch VP44 injection pump): • Access address ECU 12: ECU 12 –– Speed, Crankshaft Speed Sender (B72)—Specification Engine speed:—rpm ............................................................... between fast and slow idle

– – –1/1

3 Check Engine Oil Pressure

Access address BIF 13:

OK: Diagnosis completed.

BIF 13 –– Status, Engine Oil Pressure Sender (B04)—Specification Engine OFF:—Status (pressure) ............................ XX1 (No pressure, Sender is closed) Engine RUNNING:—Status (pressure) ..................... XX0 (Pressure in circuit, Sender is OPEN)

NOT OK: GO TO: Circuit/Harness Test for Engine Speed Sender (B01).

– – –1/1

TM4726 (01NOV03)

211-BIF-48

6020 to 6920S tractors 022204

PN=292

BIF Diagnostic Trouble Codes

BIF 000628.02 — Control Unit, Internal Error

Diagnostic trouble code BIF 000628.02 is saved when an error occurred in the memory of the instrument panel. All values in the memory are replaced by the

factory default settings. This may result in changes in the way the BiF functions.

LX16167,000005A –19–03APR02–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace instrument panel (BIF).

– – –1/1

BIF 000639.02 — 29-Bit CAN BUS, Open Circuit

Diagnostic trouble code BIF 000639.02 is saved when the instrument panel has not received CAN messages for more than 5 seconds although the ignition is on. This indicates an open circuit or a problem in the 29-bit CAN BUS circuit. This diagnostic trouble code

does not necessarily have any real meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,000005B –19–01SEP02–1/1

TM4726 (01NOV03)

211-BIF-49

6020 to 6920S tractors 022204

PN=293

211 BIF 49

BIF Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 BIF 50

• A general 29-bit CAN BUS problem. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29-bit CAN BUS connection to the instrument panel (cable +934 and/or -935). • Internal problem in the basic informator. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check 29-bit CAN BUS voltage at service connector

Use a multimeter to check the voltage at service plug X571 (W33):

OK: GO TO 3.

29-bit CAN BUS voltage (at service connector X571)—Specification Between pin C (cable 934) and pin A (cable 050)—Voltage ................................................................................... 2.5 - 2.9 volts Between pin D (cable 935) and pin A (cable 050)—Voltage ................................................................................... 2.1 - 2.5 volts

NOT OK: Check the 29-bit CAN BUS communication lines: GO TO 29-bit CAN BUS Check.

– – –1/1

TM4726 (01NOV03)

211-BIF-50

6020 to 6920S tractors 022204

PN=294

BIF Diagnostic Trouble Codes 3 Check 29-bit CAN BUS screen lines (930/932)

Disconnect connector X227 at cab roof wiring harness W19 (connector for A14 –– passive 4-pin terminating resistor) and use multimeter to measure:

OK: GO TO: 29-bit CAN BUS - Check

CAN BUS screen (at connector X227)—Specification Between pin C (cable -930) and pin F (cable +932):—Voltage.......................................................................................... 12 volts

NOT OK: • Check fuse F04/13. • If fuse F04/13 is OK: GO TO 4.

– – –1/1

4 Check Circuit of 29 CAN BUS Connection to Instrument Panel

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram see: • Reference 240-10-004, SE2-Basic Informator. • Reference 240-10-033, SE22-Bus Terminator And Terminating Resistor For component location and pin arrangement refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

BIF 301141.31 — INFORMATION FOR OPERATOR: Switch Off Worklights While Driving on Road

Diagnostic trouble code BIF 301141.31 is intended only to provide information. It is generated if the tractor is driven too fast while the worklights are switched on.

This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator

LX16167,000005C –19–03APR02–1/1

TM4726 (01NOV03)

211-BIF-51

6020 to 6920S tractors 022204

PN=295

211 BIF 51

BIF Diagnostic Trouble Codes

BIF 301143.31 — INFORMATION FOR OPERATOR: Preheat Time Remaining

211 BIF 52

Diagnostic trouble code BIF 301143.31 is intended only to provide information. It indicates the remaining preheat time. This diagnostic trouble code is not stored

in the controller’s error memory. It is intended only as information for the operator

LX16167,000005D –19–03APR02–1/1

TM4726 (01NOV03)

211-BIF-52

6020 to 6920S tractors 022204

PN=296

Group ECU

ECU Diagnostic Trouble Codes ECU 000028.03 — Cruise Control Potentiometer Input Voltage High

211 ECU 1

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 28 FMI 3 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 28 FMI 3 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-1

LX25546,0000604 –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=297

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 2

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 28 FMI 3 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-2

LX25546,0000604 –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=298

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 3

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: LEVEL 12 ECU - DTC SPN 28 FMI 3 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-3

LX25546,0000604 –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=299

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 4

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000604 –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-4

6020 to 6920S tractors 022204

PN=300

ECU Diagnostic Trouble Codes

ECU 000028.04 — Cruise Control Potentiometer Input Voltage Low

211 ECU 5

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 28 FMI 4 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - T18 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-5

LX25546,0000606 –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=301

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 6

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 28 FMI 4 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-6

LX25546,0000606 –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=302

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 7

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: LEVEL 12 ECU - DTC SPN 28 FMI 4 - CRUISE CONTROL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-7

LX25546,0000606 –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=303

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 8

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000606 –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-8

6020 to 6920S tractors 022204

PN=304

ECU Diagnostic Trouble Codes

ECU 000029.03 — Hand Throttle Potentiometer Input Voltage High

211 ECU 9

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 29 FMI 3 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - T5 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-9

LX25546,0000607 –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=305

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 10

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 29 FMI 3 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-10

LX25546,0000607 –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=306

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 11

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: LEVEL 12 ECU - DTC SPN 29 FMI 3 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-11

LX25546,0000607 –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=307

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 12

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000607 –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-12

6020 to 6920S tractors 022204

PN=308

ECU Diagnostic Trouble Codes

ECU 000029.04 — Hand Throttle Potentiometer Input Voltage Low

211 ECU 13

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 29 FMI 4 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - T6 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-13

LX25546,0000608 –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=309

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 14

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 29 FMI 4 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-14

LX25546,0000608 –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=310

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 15

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: LEVEL 12 ECU - DTC SPN 29 FMI 4 - HAND THROTTLE POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-15

LX25546,0000608 –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=311

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References 211 ECU 16

LX25546,0000608 –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-16

6020 to 6920S tractors 022204

PN=312

ECU Diagnostic Trouble Codes

ECU 000084.31 — Vehicle Speed Mismatch

Diagnostics

211 ECU 17

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 84 FMI 31 - VEHICLE SPEED MISMATCH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-17

LX25546,0000609 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=313

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 18

LX25546,0000609 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-18

6020 to 6920S tractors 022204

PN=314

ECU Diagnostic Trouble Codes

ECU 000091.03 — Accelerator Pedal Potentiometer Input Voltage High

211 ECU 19

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 91 FMI 3 ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - T3 - ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-19

LX25546,000060A –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=315

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 20

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 91 FMI 3 - ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-20

LX25546,000060A –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=316

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 21

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: LEVEL 12 ECU - DTC SPN 91 FMI 3 - ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-21

LX25546,000060A –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=317

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 22

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000060A –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-22

6020 to 6920S tractors 022204

PN=318

ECU Diagnostic Trouble Codes

ECU 000091.04 — Accelerator Pedal Potentiometer Input Voltage Low

211 ECU 23

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 91 FMI 4 ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - T4 - ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-23

LX25546,000060B –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=319

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 24

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 91 FMI 4 - ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-24

LX25546,000060B –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=320

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 25

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: LEVEL 12 ECU - DTC SPN 91 FMI 4 - ACCELERATOR PEDAL POTENTIOMETER INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-25

LX25546,000060B –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=321

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 26

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000060B –19–01SEP03–4/4

ECU 000091.07 — Hand Throttle or Accelerator Pedal Not Calibrated Correctly

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 91 FMI 7 - HAND THROTTLE OR ACCELERATOR PEDAL NOT CALIBRATED CORRECTLY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000060C –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-26

6020 to 6920S tractors 022204

PN=322

ECU Diagnostic Trouble Codes

ECU 000091.13 — Hand Throttle or Accelerator Pedal, Calibration Interrupted

211 ECU 27

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and Additional References for Level 1 ECU with Delphi (Lucas) DP 201 Pump: See LEVEL 1 ECU - DTC SPN 91 FMI 13 - HAND THROTTLE OR ACCELERATOR PEDAL, CALIBRATION INTERRUPTED in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000060D –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-27

6020 to 6920S tractors 022204

PN=323

ECU Diagnostic Trouble Codes

ECU 000094.01 — Fuel Supply Pressure Extremely Low

211 ECU 28

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 94 FMI 1 - FUEL SUPPLY PRESSURE EXTREMELY LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000060E –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-28

6020 to 6920S tractors 022204

PN=324

ECU Diagnostic Trouble Codes

ECU 000094.03 — Fuel Supply Pressure Input Voltage High

211 ECU 29

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 94 FMI 3 - FUEL SUPPLY PRESSURE INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 94 FMI 3 - FUEL SUPPLY PRESSURE INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-29

LX25546,000060F –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=325

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 30

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000060F –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-30

6020 to 6920S tractors 022204

PN=326

ECU Diagnostic Trouble Codes

ECU 000094.04 — Fuel Supply Pressure Input Voltage Low

211 ECU 31

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 94 FMI 4 - FUEL SUPPLY PRESSURE INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 94 FMI 4 - FUEL SUPPLY PRESSURE INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-31

LX25546,0000610 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=327

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 32

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,0000610 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-32

6020 to 6920S tractors 022204

PN=328

ECU Diagnostic Trouble Codes

ECU 000094.10 — Fuel Rail Pressure Loss Detected

211 ECU 33

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 94 FMI 10 - FUEL RAIL PRESSURE LOSS DETECTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-33

LX25546,0000611 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=329

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 34

LX25546,0000611 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-34

6020 to 6920S tractors 022204

PN=330

ECU Diagnostic Trouble Codes

ECU 000094.13 — Fuel Rail Pressure Higher Than Expected

211 ECU 35

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 94 FMI 13 - FUEL RAIL PRESSURE HIGHER THAN EXPECTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-35

LX25546,0000612 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=331

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 36

LX25546,0000612 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-36

6020 to 6920S tractors 022204

PN=332

ECU Diagnostic Trouble Codes

ECU 000094.17 — Fuel Rail Pressure Not Developed

211 ECU 37

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: LEVEL 11 ECU - DTC SPN 94 FMI 17 - FUEL RAIL PRESSURE NOT DEVELOPED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-37

LX25546,0000613 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=333

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 38

LX25546,0000613 –19–01SEP03–2/2

ECU 000094.18 — Fuel Supply Pressure Moderately Low

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 94 FMI 18 - FUEL SUPPLY PRESSURE MODERATELY LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000614 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-38

6020 to 6920S tractors 022204

PN=334

ECU Diagnostic Trouble Codes

ECU 000097.03 — Input Voltage from Water-in-Fuel Sensor High

211 ECU 39

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 97 FMI 03 - INPUT VOLTAGE FROM WATER-IN-FUEL SENSOR HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-39

LX25546,0000615 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=335

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 40

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000615 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-40

6020 to 6920S tractors 022204

PN=336

ECU Diagnostic Trouble Codes

ECU 000097.04 — Input Voltage from Water-in-Fuel Sensor Low

211 ECU 41

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 97 FMI 04 - INPUT VOLTAGE FROM WATER-IN-FUEL SENSOR LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-41

LX25546,0000616 –19–10NOV03–1/2

6020 to 6920S tractors 022204

PN=337

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU 42

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000616 –19–10NOV03–2/2

TM4726 (01NOV03)

211-ECU-42

6020 to 6920S tractors 022204

PN=338

ECU Diagnostic Trouble Codes

ECU 000097.16 — Water in Fuel Detected

Diagnostics

211 ECU 43

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 97 FMI 16 - WATER IN FUEL DETECTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-43

LX25546,0000617 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=339

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 44

Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 97 FMI 16 - WATER IN FUEL DETECTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000617 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-44

6020 to 6920S tractors 022204

PN=340

ECU Diagnostic Trouble Codes

ECU 000100.01 — Engine Oil Pressure Extremely Low

211 ECU 45

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 100 FMI 1 - ENGINE OIL PRESSURE EXTREMELY LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 100 FMI 1 - ENGINE OIL PRESSURE EXTREMELY LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-45

LX25546,0000618 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=341

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 46

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,0000618 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-46

6020 to 6920S tractors 022204

PN=342

ECU Diagnostic Trouble Codes

ECU 000100.03 — Engine Oil Pressure Input Voltage High

211 ECU 47

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 100 FMI 3 - ENGINE OIL PRESSURE INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 100 FMI 3 - ENGINE OIL PRESSURE INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-47

LX25546,0000619 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=343

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 48

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,0000619 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-48

6020 to 6920S tractors 022204

PN=344

ECU Diagnostic Trouble Codes

ECU 000100.04 — Engine Oil Pressure Input Voltage Low

211 ECU 49

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 100 FMI 4 - ENGINE OIL PRESSURE INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 100 FMI 4 - ENGINE OIL PRESSURE INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-49

LX25546,000061A –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=345

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 50

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000061A –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-50

6020 to 6920S tractors 022204

PN=346

ECU Diagnostic Trouble Codes

ECU 000100.18 — Engine Oil Pressure Moderately Low

211 ECU 51

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 100 FMI 18 - ENGINE OIL PRESSURE MODERATELY LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 100 FMI 18 - ENGINE OIL PRESSURE MODERATELY LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-51

LX25546,000061B –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=347

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 52

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000061B –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-52

6020 to 6920S tractors 022204

PN=348

ECU Diagnostic Trouble Codes

ECU 000105.03 — Manifold Air Temperature Input Voltage High

211 ECU 53

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 105 FMI 3 - MANIFOLD AIR TEMPERATURE INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-53

LX25546,000061C –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=349

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 54

Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 105 FMI 3 - MANIFOLD AIR TEMPERATURE INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000061C –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-54

6020 to 6920S tractors 022204

PN=350

ECU Diagnostic Trouble Codes

ECU 000105.04 — Manifold Air Temperature Input Voltage Low

211 ECU 55

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 105 FMI 4 - MANIFOLD AIR TEMPERATURE INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-55

LX25546,000061D –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=351

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 56

Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 105 FMI 4 - MANIFOLD AIR TEMPERATURE INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000061D –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-56

6020 to 6920S tractors 022204

PN=352

ECU Diagnostic Trouble Codes

ECU 000105.16 — Manifold Air Temperature Moderately High

211 ECU 57

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 105 FMI 16 - MANIFOLD AIR TEMPERATURE MODERATELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-57

LX25546,000061E –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=353

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 58

Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 105 FMI 16 - MANIFOLD AIR TEMPERATURE MODERATELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000061E –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-58

6020 to 6920S tractors 022204

PN=354

ECU Diagnostic Trouble Codes

ECU 000110.00 — Engine Coolant Temperature Extremely High

211 ECU 59

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 110 FMI 0 - ENGINE COOLANT TEMPERATURE EXTREMELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 110 FMI 0 - ENGINE COOLANT TEMPERATURE EXTREMELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-59

LX25546,000061F –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=355

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 60

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 110 FMI 0 - ENGINE COOLANT TEMPERATURE EXTREMELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-60

LX25546,000061F –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=356

ECU Diagnostic Trouble Codes • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station.

211 ECU 61

• Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000061F –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-61

6020 to 6920S tractors 022204

PN=357

ECU Diagnostic Trouble Codes

ECU 000110.03 — Engine Coolant Temperature Input Voltage High

211 ECU 62

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 110 FMI 3 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 110 FMI 3 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-62

LX25546,0000620 –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=358

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see:

211 ECU 63

• Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 110 FMI 3 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-63

LX25546,0000620 –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=359

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 64

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 110 FMI 3 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-64

LX25546,0000620 –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=360

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

211 ECU 65

LX25546,0000620 –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-65

6020 to 6920S tractors 022204

PN=361

ECU Diagnostic Trouble Codes

ECU 000110.04 — Engine Coolant Temperature Input Voltage Low

211 ECU 66

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 110 FMI 4 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 110 FMI 4 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-66

LX25546,0000621 –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=362

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see:

211 ECU 67

• Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 110 FMI 4 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-67

LX25546,0000621 –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=363

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 68

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 110 FMI 4 - ENGINE COOLANT TEMPERATURE INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-68

LX25546,0000621 –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=364

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

211 ECU 69

LX25546,0000621 –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-69

6020 to 6920S tractors 022204

PN=365

ECU Diagnostic Trouble Codes

ECU 000110.15 — Engine Coolant Temperature Slightly High

211 ECU 70

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 110 FMI 15 - ENGINE COOLANT TEMPERATURE SLIGHTLY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 110 FMI 15 - ENGINE COOLANT TEMPERATURE SLIGHTLY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-70

LX25546,0000622 –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=366

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU 71

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 110 FMI 15 - ENGINE COOLANT TEMPERATURE SLIGHTLY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-71

LX25546,0000622 –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=367

ECU Diagnostic Trouble Codes • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. 211 ECU 72

• Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000622 –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-72

6020 to 6920S tractors 022204

PN=368

ECU Diagnostic Trouble Codes

ECU 000110.16 — Engine Coolant Temperature Moderately High

211 ECU 73

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 110 FMI 16 - ENGINE COOLANT TEMPERATURE MODERATELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 110 FMI 16 - ENGINE COOLANT TEMPERATURE MODERATELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-73

LX25546,0000623 –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=369

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 74

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 110 FMI 16 - ENGINE COOLANT TEMPERATURE MODERATELY HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-74

LX25546,0000623 –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=370

ECU Diagnostic Trouble Codes • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station.

211 ECU 75

• Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000623 –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-75

6020 to 6920S tractors 022204

PN=371

ECU Diagnostic Trouble Codes

ECU 000158.17 — ECU Power Down Error

211 ECU 76

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 158 FMI 17 - ECU POWER DOWN ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 158 FMI 17 - ECU POWER DOWN ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary.

Continued on next page

TM4726 (01NOV03)

211-ECU-76

LX25546,0000626 –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=372

ECU Diagnostic Trouble Codes For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions).

211 ECU 77

For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 158 FMI 17 - ECU POWER DOWN ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-77

LX25546,0000626 –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=373

ECU Diagnostic Trouble Codes • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: 211 ECU 78

• Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000626 –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-78

6020 to 6920S tractors 022204

PN=374

ECU Diagnostic Trouble Codes

ECU 000160.02 — Wheel Speed Sensor Input Noise

211 ECU 79

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 160 FMI 2 - WHEEL SPEED SENSOR INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-79

LX25546,0000627 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=375

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 80

Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 160 FMI 2 - WHEEL SPEED SENSOR INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000627 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-80

6020 to 6920S tractors 022204

PN=376

ECU Diagnostic Trouble Codes

ECU 000174.00 — Fuel Temperature Extremely High

211 ECU 81

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 174 FMI 0 - FUEL TEMPERATURE EXTREMELY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000628 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-81

6020 to 6920S tractors 022204

PN=377

ECU Diagnostic Trouble Codes

ECU 000174.03 — Fuel Temperature Input Voltage High

211 ECU 82

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 174 FMI 3 - FUEL TEMPERATURE INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-82

LX25546,0000629 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=378

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump:

211 ECU 83

See LEVEL 12 ECU - DTC SPN 174 FMI 3 - FUEL TEMPERATURE INPUT VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000629 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-83

6020 to 6920S tractors 022204

PN=379

ECU Diagnostic Trouble Codes

ECU 000174.04 — Fuel Temperature Input Voltage Low

211 ECU 84

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 174 FMI 4 - FUEL TEMPERATURE INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-84

LX25546,000062A –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=380

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump:

211 ECU 85

See LEVEL 12 ECU - DTC SPN 174 FMI 4 - FUEL TEMPERATURE INPUT VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000062A –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-85

6020 to 6920S tractors 022204

PN=381

ECU Diagnostic Trouble Codes

ECU 000174.15 — Fuel Temperature Slightly High

211 ECU 86

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 174 FMI 15 - FUEL TEMPERATURE SLIGHTLY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000062B –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-86

6020 to 6920S tractors 022204

PN=382

ECU Diagnostic Trouble Codes

ECU 000174.16 — Fuel Temperature Moderately High

211 ECU 87

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 174 FMI 16 - FUEL TEMPERATURE MODERATELY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 174 FMI 16 - FUEL TEMPERATURE MODERATELY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-87

LX25546,000062C –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=383

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 88

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 174 FMI 16 - FUEL TEMPERATURE MODERATELY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-88

LX25546,000062C –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=384

ECU Diagnostic Trouble Codes • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors.

211 ECU 89

For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000062C –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-89

6020 to 6920S tractors 022204

PN=385

ECU Diagnostic Trouble Codes

ECU 000174.31 — Fuel Temperature Sensor Faulty

211 ECU 90

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 174 FMI 31 - FUEL TEMPERATURE SENSOR FAULTY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000062D –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-90

6020 to 6920S tractors 022204

PN=386

ECU Diagnostic Trouble Codes

ECU 000189.00 — Engine Speed Derate

Diagnostics

211 ECU 91

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 189 FMI 00 - ENGINE SPEED DERATE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-91

LX25546,000062E –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=387

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU 92

Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 189 FMI 00 - ENGINE SPEED DERATE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000062E –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-92

6020 to 6920S tractors 022204

PN=388

ECU Diagnostic Trouble Codes

ECU 000190.00 — Engine Racing Excessively

Diagnostics

211 ECU 93

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 190 FMI 0 - ENGINE RACING EXCESSIVELY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 190 FMI 0 - ENGINE RACING EXCESSIVELY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-93

LX25546,000062F –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=389

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). 211 ECU 94

For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 190 FMI 0 - ENGINE RACING EXCESSIVELY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-94

LX25546,000062F –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=390

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU 95

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 190 FMI 0 - ENGINE RACING EXCESSIVELY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-95

LX25546,000062F –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=391

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References 211 ECU 96

LX25546,000062F –19–01SEP03–4/4

ECU 000190.02 — Engine Speed Input Noise

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 190 FMI 2 - ENGINE SPEED INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000630 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-96

6020 to 6920S tractors 022204

PN=392

ECU Diagnostic Trouble Codes

ECU 000190.16 — Engine Speed Slightly High

211 ECU 97

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 190 FMI 16 - ENGINE SPEED SLIGHTLY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 190 FMI 16 - ENGINE SPEED SLIGHTLY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-97

LX25546,0000631 –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=393

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU 98

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 190 FMI 16 - ENGINE SPEED SLIGHTLY HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-98

LX25546,0000631 –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=394

ECU Diagnostic Trouble Codes • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors.

211 ECU 99

For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000631 –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-99

6020 to 6920S tractors 022204

PN=395

ECU Diagnostic Trouble Codes

ECU 000611.03 — Electronic Injector Wiring Shorted To Power Source

211 ECU ,100

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 611 FMI 3 ELECTRONIC INJECTOR WIRING SHORTED TO POWER SOURCE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-100

LX25546,0000632 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=396

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000632 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-101

6020 to 6920S tractors 022204

PN=397

211 ECU ,101

ECU Diagnostic Trouble Codes

ECU 000611.04 — Electronic Injector Wiring Shorted To Ground

211 ECU ,102

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 611 FMI 4 ELECTRONIC INJECTOR WIRING SHORTED TO GROUND - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-102

LX25546,0000633 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=398

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000633 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-103

6020 to 6920S tractors 022204

PN=399

211 ECU ,103

ECU Diagnostic Trouble Codes

ECU 000620.03 — Sensor Supply 2 Voltage High

211 ECU ,104

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 620 FMI 3 - SENSOR SUPPLY 2 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-104

LX25546,0000634 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=400

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump:

211 ECU ,105

See LEVEL 12 ECU - DTC SPN 620 FMI 3 - SENSOR SUPPLY 2 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000634 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-105

6020 to 6920S tractors 022204

PN=401

ECU Diagnostic Trouble Codes

ECU 000620.04 — Sensor Supply 2 Voltage Low

211 ECU ,106

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 620 FMI 4 - SENSOR SUPPLY 2 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-106

LX25546,0000635 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=402

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000635 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-107

6020 to 6920S tractors 022204

PN=403

211 ECU ,107

ECU Diagnostic Trouble Codes

ECU 000627.01 — Electronic Injector Supply Voltage Problem

211 ECU ,108

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 627 FMI 1 ELECTRONIC INJECTOR SUPPLY VOLTAGE PROBLEM - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-108

LX25546,0000636 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=404

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000636 –19–01SEP03–2/2

ECU 000627.04 — ECU Unswitched Power Missing

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 627 FMI 4 - ECU UNSWITCHED POWER MISSING - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000637 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-109

6020 to 6920S tractors 022204

PN=405

211 ECU ,109

ECU Diagnostic Trouble Codes

ECU 000629.13 — ECU Error

211 ECU ,110

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 629 FMI 13 - ECU ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 629 FMI 13 - ECU ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary.

Continued on next page

TM4726 (01NOV03)

211-ECU-110

LX25546,0000638 –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=406

ECU Diagnostic Trouble Codes For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions).

211 ECU ,111

For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 629 FMI 13 - ECU ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-111

LX25546,0000638 –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=407

ECU Diagnostic Trouble Codes • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: 211 ECU ,112

• Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000638 –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-112

6020 to 6920S tractors 022204

PN=408

ECU Diagnostic Trouble Codes

ECU 000629.19 — ECU to Pump Communication Error

211 ECU ,113

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 629 FMI 19 - ECU TO PUMP COMMUNICATION ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000639 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-113

6020 to 6920S tractors 022204

PN=409

ECU Diagnostic Trouble Codes

ECU 000632.02 — Fuel Shutoff Error

211 ECU ,114

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 632 FMI 2 - FUEL SHUTOFF ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000063A –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-114

6020 to 6920S tractors 022204

PN=410

ECU Diagnostic Trouble Codes

ECU 000632.05 — Fuel Shutoff Non-Functional

211 ECU ,115

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 632 FMI 5 - FUEL SHUTOFF NON-FUNCTIONAL - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000063B –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-115

6020 to 6920S tractors 022204

PN=411

ECU Diagnostic Trouble Codes

ECU 000636.02 — Pump Position Sensor Input Noise

211 ECU ,116

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 636 FMI 02 - PUMP POSITION SENSOR INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 636 FMI 02 - PUMP POSITION SENSOR INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-116

LX25546,000063C –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=412

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,117

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000063C –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-117

6020 to 6920S tractors 022204

PN=413

ECU Diagnostic Trouble Codes

ECU 000636.08 — Pump Position Sensor Input Missing

211 ECU ,118

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 636 FMI 08 - PUMP POSITION SENSOR INPUT MISSING - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 636 FMI 08 - PUMP POSITION SENSOR INPUT MISSING - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-118

LX25546,000063D –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=414

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,119

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000063D –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-119

6020 to 6920S tractors 022204

PN=415

ECU Diagnostic Trouble Codes

ECU 000636.10 — Pump Position Sensor Input Pattern Error

211 ECU ,120

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 636 FMI 10 - PUMP POSITION SENSOR INPUT PATTERN ERROR DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 636 FMI 10 - PUMP POSITION SENSOR INPUT PATTERN ERROR DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-120

LX25546,000063E –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=416

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,121

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000063E –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-121

6020 to 6920S tractors 022204

PN=417

ECU Diagnostic Trouble Codes

ECU 000637.02 — Crank Position Input Noise

211 ECU ,122

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 637 FMI 02 - CRANK POSITION INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 637 FMI 02 - CRANK POSITION INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary.

Continued on next page

TM4726 (01NOV03)

211-ECU-122

LX25546,000063F –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=418

ECU Diagnostic Trouble Codes For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions).

211 ECU ,123

For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 637 FMI 02 - CRANK POSITION INPUT NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-123

LX25546,000063F –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=419

ECU Diagnostic Trouble Codes • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: 211 ECU ,124

• Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,000063F –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-124

6020 to 6920S tractors 022204

PN=420

ECU Diagnostic Trouble Codes

ECU 000637.07 — Crank Position/Pump Position Timing Moderately Out of Sync

211 ECU ,125

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 637 FMI 07 - CRANK POSITION/PUMP POSITION TIMING MODERATELY OUT OF SYNC - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-125

LX25546,0000640 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=421

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. 211 ECU ,126

LX25546,0000640 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-126

6020 to 6920S tractors 022204

PN=422

ECU Diagnostic Trouble Codes

ECU 000637.08 — Crank Position Input Missing

211 ECU ,127

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 637 FMI 08 - CRANK POSITION INPUT MISSING - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 637 FMI 08 - CRANK POSITION INPUT MISSING - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-127

LX25546,0000641 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=423

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU ,128

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,0000641 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-128

6020 to 6920S tractors 022204

PN=424

ECU Diagnostic Trouble Codes

ECU 000637.10 — Crank Position Input Pattern Error

211 ECU ,129

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 637 FMI 10 - CRANK POSITION INPUT PATTERN ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 637 FMI 10 - CRANK POSITION INPUT PATTERN ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-129

LX25546,0000642 –19–01SEP03–1/3

6020 to 6920S tractors 022204

PN=425

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary.

211 ECU ,130

For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 637 FMI 10 - CRANK POSITION INPUT PATTERN ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-130

LX25546,0000642 –19–01SEP03–2/3

6020 to 6920S tractors 022204

PN=426

ECU Diagnostic Trouble Codes • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors.

211 ECU ,131

For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000642 –19–01SEP03–3/3

TM4726 (01NOV03)

211-ECU-131

6020 to 6920S tractors 022204

PN=427

ECU Diagnostic Trouble Codes

ECU 000651.05 — Cylinder No. 1 EI Circuit Open

211 ECU ,132

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 651 FMI 5 - CYLINDER NO. 1 EI CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-132

LX25546,0000644 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=428

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000644 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-133

6020 to 6920S tractors 022204

PN=429

211 ECU ,133

ECU Diagnostic Trouble Codes

ECU 000651.06 — Cylinder No. 1 EI Circuit Shorted

211 ECU ,134

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 651 FMI 6 - CYLINDER NO. 1 EI CIRCUIT SHORTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-134

LX25546,0000645 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=430

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000645 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-135

6020 to 6920S tractors 022204

PN=431

211 ECU ,135

ECU Diagnostic Trouble Codes

ECU 000651.07 — Cylinder No. 1 EI Fuel Delivery Failure

211 ECU ,136

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 651 FMI 7 - CYLINDER NO. 1 EI FUEL DELIVERY FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-136

LX25546,0000646 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=432

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000646 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-137

6020 to 6920S tractors 022204

PN=433

211 ECU ,137

ECU Diagnostic Trouble Codes

ECU 000652.05 — Cylinder No. 2 EI Circuit Open

211 ECU ,138

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 652 FMI 5 - CYLINDER NO. 2 EI CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-138

LX25546,0000647 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=434

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000647 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-139

6020 to 6920S tractors 022204

PN=435

211 ECU ,139

ECU Diagnostic Trouble Codes

ECU 000652.06 — Cylinder No. 2 EI Circuit Shorted

211 ECU ,140

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 652 FMI 6 - CYLINDER NO. 2 EI CIRCUIT SHORTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-140

LX25546,0000648 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=436

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000648 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-141

6020 to 6920S tractors 022204

PN=437

211 ECU ,141

ECU Diagnostic Trouble Codes

ECU 000652.07 — Cylinder No. 2 EI Fuel Delivery Failure

211 ECU ,142

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 652 FMI 7 - CYLINDER NO. 2 EI FUEL DELIVERY FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-142

LX25546,0000649 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=438

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000649 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-143

6020 to 6920S tractors 022204

PN=439

211 ECU ,143

ECU Diagnostic Trouble Codes

ECU 000653.05 — Cylinder No. 3 EI Circuit Open

211 ECU ,144

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 653 FMI 5 - CYLINDER NO. 3 EI CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-144

LX25546,000064A –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=440

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,000064A –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-145

6020 to 6920S tractors 022204

PN=441

211 ECU ,145

ECU Diagnostic Trouble Codes

ECU 000653.06 — Cylinder No. 3 EI Circuit Shorted

211 ECU ,146

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 653 FMI 6 - CYLINDER NO. 3 EI CIRCUIT SHORTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-146

LX25546,000064B –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=442

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,000064B –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-147

6020 to 6920S tractors 022204

PN=443

211 ECU ,147

ECU Diagnostic Trouble Codes

ECU 000653.07 — Cylinder No. 3 EI Fuel Delivery Failure

211 ECU ,148

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 653 FMI 7 - CYLINDER NO. 3 EI FUEL DELIVERY FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-148

LX25546,000064C –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=444

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,000064C –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-149

6020 to 6920S tractors 022204

PN=445

211 ECU ,149

ECU Diagnostic Trouble Codes

ECU 000654.05 — Cylinder No. 4 EI Circuit Open

211 ECU ,150

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 654 FMI 5 - CYLINDER NO. 4 EI CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-150

LX25546,000064D –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=446

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,000064D –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-151

6020 to 6920S tractors 022204

PN=447

211 ECU ,151

ECU Diagnostic Trouble Codes

ECU 000654.06 — Cylinder No. 4 EI Circuit Shorted

211 ECU ,152

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 654 FMI 6 - CYLINDER NO. 4 EI CIRCUIT SHORTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-152

LX25546,000064E –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=448

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,000064E –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-153

6020 to 6920S tractors 022204

PN=449

211 ECU ,153

ECU Diagnostic Trouble Codes

ECU 000654.07 — Cylinder No. 4 EI Fuel Delivery Failure

211 ECU ,154

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 654 FMI 7 - CYLINDER NO. 4 EI FUEL DELIVERY FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-154

LX25546,000064F –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=450

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,000064F –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-155

6020 to 6920S tractors 022204

PN=451

211 ECU ,155

ECU Diagnostic Trouble Codes

ECU 000655.05 — Cylinder No. 5 EI Circuit Open

211 ECU ,156

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 655 FMI 5 - CYLINDER NO. 5 EI CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-156

LX25546,0000650 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=452

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000650 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-157

6020 to 6920S tractors 022204

PN=453

211 ECU ,157

ECU Diagnostic Trouble Codes

ECU 000655.06 — Cylinder No. 5 EI Circuit Shorted

211 ECU ,158

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 655 FMI 6 - CYLINDER NO. 5 EI CIRCUIT SHORTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-158

LX25546,0000651 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=454

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000651 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-159

6020 to 6920S tractors 022204

PN=455

211 ECU ,159

ECU Diagnostic Trouble Codes

ECU 000655.07 — Cylinder No. 5 EI Fuel Delivery Failure

211 ECU ,160

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 655 FMI 7 - CYLINDER NO. 5 EI FUEL DELIVERY FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-160

LX25546,0000652 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=456

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000652 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-161

6020 to 6920S tractors 022204

PN=457

211 ECU ,161

ECU Diagnostic Trouble Codes

ECU 000656.05 — Cylinder No. 6 EI Circuit Open

211 ECU ,162

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 656 FMI 5 - CYLINDER NO. 6 EI CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-162

LX25546,0000653 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=458

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000653 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-163

6020 to 6920S tractors 022204

PN=459

211 ECU ,163

ECU Diagnostic Trouble Codes

ECU 000656.06 — Cylinder No. 6 EI Circuit Shorted

211 ECU ,164

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 656 FMI 6 - CYLINDER NO. 6 EI CIRCUIT SHORTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-164

LX25546,0000654 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=460

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000654 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-165

6020 to 6920S tractors 022204

PN=461

211 ECU ,165

ECU Diagnostic Trouble Codes

ECU 000656.07 — Cylinder No. 6 EI Fuel Delivery Failure

211 ECU ,166

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 656 FMI 7 - CYLINDER NO. 6 EI FUEL DELIVERY FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-166

LX25546,0000655 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=462

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000655 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-167

6020 to 6920S tractors 022204

PN=463

211 ECU ,167

ECU Diagnostic Trouble Codes

ECU 000676.03 — Glow Plug Relay Voltage High

211 ECU ,168

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 676 FMI 3 - GLOW PLUG RELAY VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-168

LX25546,0000656 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=464

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000656 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-169

6020 to 6920S tractors 022204

PN=465

211 ECU ,169

ECU Diagnostic Trouble Codes

ECU 000676.05 — Glow Plug Relay Voltage Low

211 ECU ,170

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 676 FMI 5 - GLOW PLUG RELAY VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-170

LX25546,0000657 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=466

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000657 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-171

6020 to 6920S tractors 022204

PN=467

211 ECU ,171

ECU Diagnostic Trouble Codes

ECU 000729.03 — Inlet Air Heater Signal High

211 ECU ,172

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 729 FMI 3 - INLET AIR HEATER SIGNAL HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 729 FMI 3 - INLET AIR HEATER SIGNAL HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331.

Continued on next page

TM4726 (01NOV03)

211-ECU-172

LX25546,0000658 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=468

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,173

• Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000658 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-173

6020 to 6920S tractors 022204

PN=469

ECU Diagnostic Trouble Codes

ECU 000729.05 — Inlet Air Heater Signal Low

211 ECU ,174

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 729 FMI 5 - INLET AIR HEATER SIGNAL LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 729 FMI 5 - INLET AIR HEATER SIGNAL LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary.

Continued on next page

TM4726 (01NOV03)

211-ECU-174

LX25546,0000659 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=470

ECU Diagnostic Trouble Codes For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab.

211 ECU ,175

• Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX25546,0000659 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-175

6020 to 6920S tractors 022204

PN=471

ECU Diagnostic Trouble Codes

ECU 000810.02 — Calculated Vehicle Speed Input Signal Noise

211 ECU ,176

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 810 FMI 2 CALCULATED VEHICLE SPEED INPUT SIGNAL NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 810 FMI 2 CALCULATED VEHICLE SPEED INPUT SIGNAL NOISE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-176

LX25546,000065A –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=472

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see:

211 ECU ,177

• Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000065A –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-177

6020 to 6920S tractors 022204

PN=473

ECU Diagnostic Trouble Codes

ECU 000898.09 — Engine Speed or Torque Message Invalid

211 ECU ,178

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 898 FMI 9 - ENGINE SPEED OR TORQUE MESSAGE INVALID DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 898 FMI 9 - ENGINE SPEED OR TORQUE MESSAGE INVALID DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-178

LX25546,000065B –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=474

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,179

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX25546,000065B –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-179

6020 to 6920S tractors 022204

PN=475

ECU Diagnostic Trouble Codes

ECU 000931.02 — Pump Current Instability

211 ECU ,180

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 931 FMI 2 - PUMP CURRENT INSTABILITY - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000065C –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-180

6020 to 6920S tractors 022204

PN=476

ECU Diagnostic Trouble Codes

ECU 000931.03 — Pump Current Feedback Input Voltage High

211 ECU ,181

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 931 FMI 3 - PUMP CURRENT FEEDBACK INPUT VOLTAGE HIGH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000065D –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-181

6020 to 6920S tractors 022204

PN=477

ECU Diagnostic Trouble Codes

ECU 000931.04 — Pump Current Feedback Input Voltage Low

211 ECU ,182

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 931 FMI 4 - PUMP CURRENT FEEDBACK INPUT VOLTAGE LOW DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000065E –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-182

6020 to 6920S tractors 022204

PN=478

ECU Diagnostic Trouble Codes

ECU 000931.15 — Pump Current Out of Range (Engine OFF)

211 ECU ,183

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 931 FMI 15 - PUMP CURRENT OUT OF RANGE (ENGINE OFF) DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,000065F –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-183

6020 to 6920S tractors 022204

PN=479

ECU Diagnostic Trouble Codes

ECU 000931.31 — Pump Current Not Controllable

211 ECU ,184

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 931 FMI 31 - PUMP CURRENT NOT CONTROLLABLE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000660 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-184

6020 to 6920S tractors 022204

PN=480

ECU Diagnostic Trouble Codes

ECU 001041.02 — Start Signal Missing

Diagnostics

211 ECU ,185

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 1041 FMI 2 - START SIGNAL MISSING - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000661 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-185

6020 to 6920S tractors 022204

PN=481

ECU Diagnostic Trouble Codes

ECU 001041.03 — Start Signal Always Active

211 ECU ,186

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 1041 FMI 3 - START SIGNAL ALWAYS ACTIVE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX25546,0000662 –19–01SEP03–1/1

ECU 001069.02 — Tire Size Error

Diagnostic trouble code ECU 001069.02 is saved when the engine control unit calculates a wheel speed that does not match the available wheel sizes for the

relevant model. This diagnostic trouble code triggers the alarm level: “Information”. The engine control unit limits the engine speed to 1950 rpm.

LX25546,00003B5 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-186

6020 to 6920S tractors 022204

PN=482

ECU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • An incorrect input signal at the basic control unit (BCU). • Wheel size does not match manufacturer specifications. • The wrong wheels are installed.

211 ECU ,187

Additional references: • Electrical information: See Reference 210-15-001, General References—Summary. • See Reference 245-BCU-001, Calibration and Input Signal Addresses (Basic Functions). • See Reference 245-BIF-001, Calibration and Input Signal Addresses.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the input signals

Check the rolling circumferences in address BCU 56: Access address BCU 56 and check value. For input value refer to: Address BCU056 — Basic Functions, Rolling Circumference, Technical Manual, Section 245, BCU Group.

OK: • Wheel size does not match manufacturer specifications. • Wrong wheels were mounted. NOT OK: Modify setting, confirm and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-ECU-187

6020 to 6920S tractors 022204

PN=483

ECU Diagnostic Trouble Codes

ECU 001069.09 — Tire Size Invalid

211 ECU ,188

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1069 FMI 9 - TIRE SIZE INVALID - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-188

LX25546,0000666 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=484

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000666 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-189

6020 to 6920S tractors 022204

PN=485

211 ECU ,189

ECU Diagnostic Trouble Codes

ECU 001069.31 — Tire Size Error

211 ECU ,190

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1069 FMI 31 - TIRE SIZE ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-190

LX25546,0000667 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=486

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX25546,0000667 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-191

6020 to 6920S tractors 022204

PN=487

211 ECU ,191

ECU Diagnostic Trouble Codes

ECU 001076.00 — Pump Control Valve Closure Too Long

211 ECU ,192

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 0 - PUMP CONTROL VALVE CLOSURE TOO LONG DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-192

LX12234,0000FF8 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=488

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

211 ECU ,193

LX12234,0000FF8 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-193

6020 to 6920S tractors 022204

PN=489

ECU Diagnostic Trouble Codes

ECU 001076.01 — Pump Control Valve Closure Too Short

211 ECU ,194

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 01 - PUMP CONTROL VALVE CLOSURE TOO SHORT DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-194

LX12234,0000FF9 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=490

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

211 ECU ,195

LX12234,0000FF9 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-195

6020 to 6920S tractors 022204

PN=491

ECU Diagnostic Trouble Codes

ECU 001076.02 — Pump Detected Defect

211 ECU ,196

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1076 FMI 2 - PUMP DETECTED DEFECT - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0000FFA –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-196

6020 to 6920S tractors 022204

PN=492

ECU Diagnostic Trouble Codes

ECU 001076.03 — Pump Solenoid Current High

211 ECU ,197

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 3 - PUMP SOLENOID CURRENT HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-197

LX12234,0000FFB –19–14NOV03–1/2

6020 to 6920S tractors 022204

PN=493

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References 211 ECU ,198

LX12234,0000FFB –19–14NOV03–2/2

TM4726 (01NOV03)

211-ECU-198

6020 to 6920S tractors 022204

PN=494

ECU Diagnostic Trouble Codes

ECU 001076.05 — Pump Solenoid Circuit Open

211 ECU ,199

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 5 - PUMP SOLENOID CIRCUIT OPEN - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-199

LX12234,0000FFC –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=495

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References 211 ECU ,200

LX12234,0000FFC –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-200

6020 to 6920S tractors 022204

PN=496

ECU Diagnostic Trouble Codes

ECU 001076.06 — Pump Solenoid Circuit Severely Shorted

211 ECU ,201

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 6 - PUMP SOLENOID CIRCUIT SEVERELY SHORTED DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-201

LX12234,0000FFD –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=497

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU ,202

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX12234,0000FFD –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-202

6020 to 6920S tractors 022204

PN=498

ECU Diagnostic Trouble Codes

ECU 001076.07 — Pump Control Valve Closure Not Detected

211 ECU ,203

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 7 - PUMP CONTROL VALVE CLOSURE NOT DETECTED DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-203

LX12234,0000FFE –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=499

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU ,204

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX12234,0000FFE –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-204

6020 to 6920S tractors 022204

PN=500

ECU Diagnostic Trouble Codes

ECU 001076.10 — Pump Solenoid Circuit Moderately Shorted

211 ECU ,205

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 10 - PUMP SOLENOID CIRCUIT MODERATELY SHORTED DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-205

LX12234,0000FFF –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=501

ECU Diagnostic Trouble Codes • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References. 211 ECU ,206

• Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX12234,0000FFF –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-206

6020 to 6920S tractors 022204

PN=502

ECU Diagnostic Trouble Codes

ECU 001076.13 — Current Drop - Time Fault

Diagnostics

211 ECU ,207

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1076 FMI 13 CURRENT DROP - TIME FAULT - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-207

LX25546,00005F3 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=503

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References 211 ECU ,208

LX25546,00005F3 –19–01SEP03–2/2

ECU 001077.07 — Attempting to Fuel Without Command

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1077 FMI 7 ATTEMPTING TO FUEL WITHOUT COMMAND DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001003 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-208

6020 to 6920S tractors 022204

PN=504

ECU Diagnostic Trouble Codes

ECU 001077.11 — Pump Supply Voltage Out Of Range

211 ECU ,209

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1077 FMI 11 - PUMP SUPPLY VOLTAGE OUT OF RANGE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001004 –19–14NOV03–1/1

TM4726 (01NOV03)

211-ECU-209

6020 to 6920S tractors 022204

PN=505

ECU Diagnostic Trouble Codes

ECU 001077.12 — Pump Self-Test Error

211 ECU ,210

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1077 FMI 12 - PUMP SELF-TEST ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001005 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-210

6020 to 6920S tractors 022204

PN=506

ECU Diagnostic Trouble Codes

ECU 001077.19 — Communication Error between ECU and Pump Detected

211 ECU ,211

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1077 FMI 19 COMMUNICATION ERROR BETWEEN ECU AND PUMP DETECTED - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001006 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-211

6020 to 6920S tractors 022204

PN=507

ECU Diagnostic Trouble Codes

ECU 001077.31 — Pump Initiated Engine Protection

211 ECU ,212

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1077 FMI 31 - PUMP INITIATED ENGINE PROTECTION - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001007 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-212

6020 to 6920S tractors 022204

PN=508

ECU Diagnostic Trouble Codes

ECU 001078.07 — ECU/Pump Timing Moderately Out of Sync

211 ECU ,213

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1078 FMI 7 - ECU/PUMP TIMING MODERATELY OUT OF SYNC - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001008 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-213

6020 to 6920S tractors 022204

PN=509

ECU Diagnostic Trouble Codes

ECU 001078.11 — ECU/Pump Engine Speed Out of Sync

211 ECU ,214

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1078 FMI 11 - ECU/PUMP ENGINE SPEED OUT OF SYNC - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001009 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-214

6020 to 6920S tractors 022204

PN=510

ECU Diagnostic Trouble Codes

ECU 001078.31 — ECU/Pump Timing Extremely Out of Sync

211 ECU ,215

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1078 FMI 31 - ECU/PUMP TIMING EXTREMELY OUT OF SYNC - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,000100A –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-215

6020 to 6920S tractors 022204

PN=511

ECU Diagnostic Trouble Codes

ECU 001079.03 — Sensor Supply 1 Voltage High

211 ECU ,216

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 1079 FMI 3 - SENSOR SUPPLY 1 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1079 FMI 3 - SENSOR SUPPLY 1 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-216

LX12234,000100B –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=512

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see:

211 ECU ,217

• Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1079 FMI 3 - SENSOR SUPPLY 1 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-217

LX12234,000100B –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=513

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU ,218

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1079 FMI 3 - SENSOR SUPPLY 1 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-218

LX12234,000100B –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=514

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX12234,000100B –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-219

6020 to 6920S tractors 022204

PN=515

211 ECU ,219

ECU Diagnostic Trouble Codes

ECU 001079.04 — Sensor Supply 1 Voltage Low

211 ECU ,220

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 1 ECU with Delphi (Lucas) DP201 pump: See LEVEL 1 ECU - DTC SPN 1079 FMI 4 - SENSOR SUPPLY 1 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM284. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions) For component location and pin arrangement, see: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1079 FMI 4 - SENSOR SUPPLY 1 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

Continued on next page

TM4726 (01NOV03)

211-ECU-220

LX12234,000100C –19–01SEP03–1/4

6020 to 6920S tractors 022204

PN=516

ECU Diagnostic Trouble Codes • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see:

211 ECU ,221

• Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1079 FMI 4 - SENSOR SUPPLY 1 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-221

LX12234,000100C –19–01SEP03–2/4

6020 to 6920S tractors 022204

PN=517

ECU Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. 211 ECU ,222

• Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 1079 FMI 4 - SENSOR SUPPLY 1 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-222

LX12234,000100C –19–01SEP03–3/4

6020 to 6920S tractors 022204

PN=518

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX12234,000100C –19–01SEP03–4/4

TM4726 (01NOV03)

211-ECU-223

6020 to 6920S tractors 022204

PN=519

211 ECU ,223

ECU Diagnostic Trouble Codes

ECU 001080.03 — Sensor Supply 2 Voltage High

211 ECU ,224

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1080 FMI 3 - SENSOR SUPPLY 2 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1080 FMI 3 - SENSOR SUPPLY 2 VOLTAGE HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-224

LX12234,000100D –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=520

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,225

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX12234,000100D –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-225

6020 to 6920S tractors 022204

PN=521

ECU Diagnostic Trouble Codes

ECU 001080.04 — Sensor Supply 2 Voltage Low

211 ECU ,226

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1080 FMI 4 - SENSOR SUPPLY 2 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1080 FMI 4 - SENSOR SUPPLY 2 VOLTAGE LOW - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220.

Continued on next page

TM4726 (01NOV03)

211-ECU-226

LX12234,000100E –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=522

ECU Diagnostic Trouble Codes Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see:

211 ECU ,227

• Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) LX12234,000100E –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-227

6020 to 6920S tractors 022204

PN=523

ECU Diagnostic Trouble Codes

ECU 001347.03 — Pump Control Valve Current High

211 ECU ,228

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1347 FMI 3 - PUMP CONTROL VALVE CURRENT HIGH - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-228

LX12234,000100F –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=524

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX12234,000100F –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-229

6020 to 6920S tractors 022204

PN=525

211 ECU ,229

ECU Diagnostic Trouble Codes

ECU 001347.05 — Pump Control Valve Current Mismatch

211 ECU ,230

Service Code Diagnosis

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1347 FMI 5 - PUMP CONTROL VALVE CURRENT MISMATCH DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-230

LX12234,0001010 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=526

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX12234,0001010 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-231

6020 to 6920S tractors 022204

PN=527

211 ECU ,231

ECU Diagnostic Trouble Codes

ECU 001347.07 — Fuel Rail Pressure Control Error

211 ECU ,232

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1347 FMI 7 - FUEL RAIL PRESSURE CONTROL ERROR - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-232

LX12234,0001011 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=528

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

LX12234,0001011 –19–01SEP03–2/2

ECU 001485.02 — Pump Power Relay Fault

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 4 ECU with Bosch VP44 pump: See LEVEL 4 ECU - DTC SPN 1485 FMI 2 - PUMP POWER RELAY FAULT - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM170. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References.

LX12234,0001012 –19–01SEP03–1/1

TM4726 (01NOV03)

211-ECU-233

6020 to 6920S tractors 022204

PN=529

211 ECU ,233

ECU Diagnostic Trouble Codes

ECU 001569.31 — Fuel Derate

211 ECU ,234

Service Code Diagnosis

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 11 ECU with Denso HPCR: See LEVEL 11 ECU - DTC SPN 1569 FMI 31 - FUEL DERATE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM220. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) Continued on next page

TM4726 (01NOV03)

211-ECU-234

LX12234,0001013 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=530

ECU Diagnostic Trouble Codes • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References. See LEVEL 12 ECU - DTC SPN 1569 FMI 31 - FUEL DERATE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331.

211 ECU ,235

LX12234,0001013 –19–01SEP03–2/2

TM4726 (01NOV03)

211-ECU-235

6020 to 6920S tractors 022204

PN=531

ECU Diagnostic Trouble Codes

ECU 002000.06 — Internal ECU Failure

211 ECU ,236

Diagnostics

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. Diagnostics and additional references for Level 12 ECU with Stanadyne DE10 pump: See LEVEL 12 ECU - DTC SPN 2000 FMI 6 - INTERNAL ECU FAILURE - DIAGNOSTIC PROCEDURE in Section 04, Group 160 in CTM331. Electrical information: See Reference 210-15-001, General References—Summary. For information on functional and diagnostic schematics, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator’s station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE tractors. For component location and pin arrangement, see: • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC - Summary of References. • Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

Continued on next page

TM4726 (01NOV03)

211-ECU-236

LX12234,0001014 –19–01SEP03–1/2

6020 to 6920S tractors 022204

PN=532

ECU Diagnostic Trouble Codes • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References

LX12234,0001014 –19–01SEP03–2/2

ECU 002000.13 — Security Violation

Diagnostic trouble code ECU 002000.13 is saved when the basic control unit sends false/no tractor data to the engine control unit via the CAN BUS. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003C7 –19–01SEP03–1/1

Diagnostics

NOTE: The following are possible causes: • Incorrect input signal at BCU. • Wrong ECU installed. • Communication problem between BCU and ECU (CAN BUS problem). – If other diagnostic trouble codes are stored by other control units, and these codes indicate a problem with the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. Additional references: • Electrical information: See Reference 210-15-001, General References—Summary. • See Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-ECU-237

6020 to 6920S tractors 022204

PN=533

211 ECU ,237

ECU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 ECU ,238 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: If BIF 000639.02 is not stored, GO TO 2.

Are other diagnostic trouble codes stored, indicating a general problem with the 29-bit CAN BUS (BIF 000639.02)?

NOT OK: BIF 000639.02 - 29 BIT CAN BUS, open circuit (section 211, group BIF) takes priority.

– – –1/1

2 Check the BCU input

2.1 - Check the input for tractor configuration:

OK: GO TO 2.2.

Access address BCU077.

NOT OK: Change the input value in the BCU and delete diagnostic trouble code.

Check the inputs: see Address BCU077 — Basic Functions, Tractor Configuration, Section 245, Group BCU in the Technical Manual.

2.2 - Check the input for engine control function: Access address BCU078. Check the inputs: see Address BCU078 — Basic Functions, Engine Control Function, Section 245, Group BCU in the Technical Manual.

OK: Wrong ECU installed. Install the correct ECU. NOT OK: Change the input value in the BCU and delete diagnostic trouble code (changes are not adopted until the ignition has been switched off and then switched on again).

– – –1/1

TM4726 (01NOV03)

211-ECU-238

6020 to 6920S tractors 022204

PN=534

Group EPC

EPC Diagnostic Trouble Codes EPC 000158.04 — System Voltage Too Low

Diagnostic trouble code EPC 000158.04 is saved if the operating voltage of the transmission control unit

(battery voltage) is less than 9 volts. This diagnostic trouble code triggers the alarm level: “Information”.

211 EPC 1

LX25546,00003C9 –19–01SEP03–1/1

Diagnostics The following are possible causes: • • • • • •

Defective battery. Defective alternator G02. Drive belt is defective or slipping. High current requirements. High resistance in wiring harness. Defective lead connection to the transmission control unit (cables 572, 503 and 050).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2

OK: GO TO 2.

Perform a visual inspection of the alternator, the battery and the drive belt:

NOT OK: Recondition as required and carry out an operational test.

• Check all components for visible damage. • Check all relevant connectors of the supply circuit for bad, loose, widened or corroded contacts. • Make sure that the drive belt is installed correctly and check for signs of it slipping. • Check ground connections between battery/engine and cab. – Check mounting surfaces for corrosion / paint and loose mounting bolts.

– – –1/1

TM4726 (01NOV03)

211-EPC-1

6020 to 6920S tractors 022204

PN=535

EPC Diagnostic Trouble Codes 2 Check system voltage

Access address EPC009:

OK: Diagnosis completed.

EPC009 –– Status, ELX Voltage and Battery Voltage—Specification Ignition ON; engine OFF:—Status .................................................................. XXXX11XX Engine running at low idle (above 512 rpm):—Status .................................................................................................. XXXX11XX

211 EPC 2

NOT OK: GO TO 3.

– – –1/1

3 Check system voltage in BCU

Access address BCU032. BCU032 –– Voltage, System Voltage (BCU Operating Voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle (above 512 rpm):—Voltage .................................................................... between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

OK: Check line connections between ELX relay and EPC control unit for bad, loose, widened or corroded contacts, GO TO 5. NOT OK: GO TO 4.

– – –1/1

4 Checking the charging system

Check the following components: • Check alternator, refer to "Alternator Checks"; see Technical Manual, Section 240, Group 15. • Check battery, refer to "Battery Checks"; see Technical Manual, Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit for bad, loose, widened or corroded contacts, GO TO 5. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-EPC-2

6020 to 6920S tractors 022204

PN=536

EPC Diagnostic Trouble Codes 5 Checking the EPC’s operating voltage circuit (cables 503, 572 and 050)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10A-053, SE26A-Transmission Control. • Reference 240-10-003, SE1 - Starting Motor and Charging Circuit For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

EPC 000629.12 — Control Unit, Internal Error

Diagnostic trouble code EPC 000629.12 is saved when the transmission control unit recognizes a software

problem. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000353 –19–01JUL01–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-EPC-3

6020 to 6920S tractors 022204

PN=537

211 EPC 3

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace transmission control unit (EPC).

211 EPC 4

– – –1/1

EPC 000639.12 — Control Unit, Internal Error

Diagnostic trouble code EPC 000639.12 is saved when the transmission control unit recognizes a software

problem. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000354 –19–01JUL01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace transmission control unit (EPC).

– – –1/1

TM4726 (01NOV03)

211-EPC-4

6020 to 6920S tractors 022204

PN=538

EPC Diagnostic Trouble Codes

EPC 000639.13 — 29-bit CAN BUS, High Error Rate

Diagnostic trouble code EPC 000639.13 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the transmission is not

operating properly. Diagnostic trouble code EPC 000639.13 is saved when the transmission control unit recognizes a high error rate in the incoming CAN BUS messages. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000355 –19–01APR02–1/1

Diagnostics The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29-bit CAN BUS connection to the transmission control unit (cable +934 and/or -935). • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and transmission is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active and transmission is NOT operating properly: Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

TM4726 (01NOV03)

211-EPC-5

6020 to 6920S tractors 022204

PN=539

211 EPC 5

EPC Diagnostic Trouble Codes

EPC 000639.19 — 29-bit CAN BUS, Very High Error Rate

211 EPC 6

Diagnostic trouble code EPC 000639.19 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the transmission is not

operating properly. Diagnostic trouble code EPC 000639.19 is saved when the transmission control unit recognizes a very high error rate in the incoming CAN BUS messages. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000356 –19–01APR02–1/1

Diagnostics The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29-bit CAN BUS connection to the transmission control unit (cable +934 and/or -935). • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and transmission is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active and transmission is NOT operating properly: Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

TM4726 (01NOV03)

211-EPC-6

6020 to 6920S tractors 022204

PN=540

EPC Diagnostic Trouble Codes

EPC 306014.02 — Clutch Pedal Potentiometer, Incorrect Voltage Ratio at Channel 1 and 2

Diagnostic trouble code EPC 306014.02 is saved when the transmission control unit recognize a discrepancy between the output signals of the potentiometers (the

voltage at channel 1 must be double the value of channel 2). This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 EPC 7

LX25546,0000358 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective clutch pedal potentiometer (B65). • A defect at the signal leads of channel 1 or channel 2. – A defective channel 1 produces additional EPC diagnostic trouble codes (EPC 306015.03 or EPC 306016.04 takes priority). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 05). • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 05).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic trouble codes (EPC 306015.03 or EPC 306016.04) must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-7

6020 to 6920S tractors 022204

PN=541

EPC Diagnostic Trouble Codes 2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

The voltage at channel 1 must be double the voltage of channel 2.

• Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group EPC.

2.1 – Check Channel 1 of the Clutch Pedal Potentiometer:

211 EPC 8

• Access address EPC 12: EPC 12 –– Voltage, channel 1 of the clutch pedal potentiometer (B65)— Specification Clutch pedal declutched:—Minimum voltage ............................................................................... 0.5 volts (display: 0050XXXX) Clutch pedal clutched:—Maximum voltage ............................................................................... 4.5 volts (display: 0450XXXX) 2.2 – Check Channel 2 of the Clutch Pedal Potentiometer:

NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group EPC.

• Access address EPC 12: EPC 12 –– Voltage, channel 2 of the clutch pedal potentiometer (B65)— Specification Clutch pedal declutched:—Minimum voltage ............................................................................. 0.25 volts (display: XXXX0025) Clutch pedal clutched:—Maximum voltage ............................................................................. 2,25 volts (display: XXXX0225)

– – –1/1

EPC 306015.03 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too High

Diagnostic trouble code EPC 306015.03 is saved when the basic control unit measures a voltage over 4.7 volts at the signal input of channel 1 of the

potentiometer. This indicates that the circuit is shorted. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000359 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-8

6020 to 6920S tractors 022204

PN=542

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective clutch pedal potentiometer (B65). • Short circuit in the voltage supply circuit of the clutch pedal potentiometer (B65). • Short circuit in the signal lead (cable 254) between the clutch pedal potentiometer (B65) and the transmission control unit (EPC). • Defective ground lead (cable 241).

211 EPC 9

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 05). • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 05).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-9

6020 to 6920S tractors 022204

PN=543

EPC Diagnostic Trouble Codes 2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check Channel 1 of the Clutch Pedal Potentiometer:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group EPC.

Access address EPC 12:

211 EPC 10

EPC 12 –– Voltage, channel 1 of the clutch pedal potentiometer (B65)— Specification Pedal declutched:—Minimum voltage ............................... 0.5 volts (display: 0050XXXX) Pedal clutched:—Maximum voltage .................................. 4.5 volts (display: 0450XXXX)

NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group EPC.

– – –1/1

EPC 306016.04 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too Low

Diagnostic trouble code EPC 306016.04 is saved when the transmission control unit measures a voltage below 0.3 volts at channel 1 of the potentiometer. This

indicates that the circuit is open. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000035A –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-10

6020 to 6920S tractors 022204

PN=544

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective clutch pedal potentiometer (B65). • A general problem with the 5-volt power supply (cable 243) of the clutch pedal potentiometer (B65). • Defective line connection between the clutch pedal potentiometer (B65) and the transmission control unit (EPC): – Supply voltage interrupted (ground and/or positive lead). – Open circuit or circuit shorted to ground at the signal lead (cable 254). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 05). • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 05).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-11

6020 to 6920S tractors 022204

PN=545

211 EPC 11

EPC Diagnostic Trouble Codes 2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check Channel 1 of the Clutch Pedal Potentiometer:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group EPC.

Access address EPC 12:

211 EPC 12

EPC 12 –– Voltage, channel 1 of the clutch pedal potentiometer (B65)— Specification Pedal declutched:—Minimum voltage ............................... 0.5 volts (display: 0050XXXX) Pedal clutched:—Maximum voltage .................................. 4.5 volts (display: 0450XXXX)

NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group EPC.

– – –1/1

EPC 306020.31 — Control Unit, Wrong Input Value

Diagnostic trouble code EPC 306020.31 is saved when the transmission control unit registers a false setting/input in the tractor model address. This

diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000035B –19–01APR02–1/1

Diagnostics The following are possible causes: • Wrong input value entered during control unit calibration.

– – –1/1

TM4726 (01NOV03)

211-EPC-12

6020 to 6920S tractors 022204

PN=546

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. EPC 13

– – –1/1

2 Checking the input value

Access address EPC 28:

Tractor Tractor Tractor Tractor Tractor Tractor Tractor Tractor

model model model model model model model model

OK: Diagnosis completed.

EPC 28 –– Tractor Model Input Address—Specification 6120—Status ......................................................................................... 6220—Status ......................................................................................... 6320—Status ......................................................................................... 6420—Status ......................................................................................... 6520—Status ......................................................................................... 6620—Status ......................................................................................... 6820—Status ......................................................................................... 6920—Status .........................................................................................

61 62 63 64 65 66 68 69

NOT OK: Enter prescribed value and delete the diagnostic trouble code.

– – –1/1

EPC 306025.31 — Transmission Enable Relay, Circuit Fault

Diagnostic trouble code EPC 306025.31 is saved if an open lead or short circuit exists in the detent coil circuit

of the transmission enable relay. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000035C –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-13

6020 to 6920S tractors 022204

PN=547

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 14

• Defective transmission enable relay (K09/5). • Defective clutch pedal switch (S72). • Detent coil circuit of the transmission enable relay (K09/5) defective: – Defective positive lead 664 between EPC (transmission control unit) and transmission enable relay (K09/5). – Defective ground lead 560 (pin 24 on connector X483/2) between BCU and transmission enable relay (K09/5). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • Reference 240-25A-010, Fuses and relays. • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 05). • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 05).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check output signal of transmission enable relay

Perform the test only while the engine is running and range-shift lever is in neutral.

OK: • Diagnosis completed.

Access address EPC 09: EPC 09 –– Status, transmission enable signal (output signal of transmission enable relay K09/5)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Status ........................................................... X00XXXXX Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Status .............................................................................................................. X11XXXXX Reverse drive lever in forward or reverse position and clutch pedal pressed:— Status .............................................................................................................. X00XXXXX

• Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission enable relay (K09/5); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-EPC-14

6020 to 6920S tractors 022204

PN=548

EPC Diagnostic Trouble Codes 3 Checking the clutch pedal switch

Perform the test only while the engine is running and range-shift lever is in neutral. Access address EPC 09: EPC 09 –– Status, clutch pedal switch (S72)—Specification Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Status .............................................................................................................. 1XXXXXXX Reverse drive lever in forward or reverse position and clutch pedal pressed:— Status .............................................................................................................. 0XXXXXXX

OK: Check the circuit of the transmission enable relay, GO TO: Circuit/harness test for transmission enable relay (K09/5); see Technical 211 Manual, Section 245, EPC Group EPC. 15 NOT OK: Check the circuit of the clutch pedal switch, GO TO: Circuit/harness test for clutch pedal switch (S72); see Technical Manual, Section 245, Group EPC.

– – –1/1

EPC 306026.31 — Reverse Drive Lever Detent Coil, Circuit Fault

Diagnostic trouble code EPC 306026.31 is saved when the transmission control unit registers a fault in the detent coil circuit while the detent coil is active. This indicates that the detent circuit is open or shorted. This

diagnostic trouble code does not necessarily mean that the detent coil in the reverse drive lever is responsible for the fault. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000035D –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-15

6020 to 6920S tractors 022204

PN=549

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 16

• Defective detent coil in the reverse drive lever (A47). • Defective/bad ground connection (XGND40). • Circuit fault in the detent coil circuit of the reverse drive lever: – Open lead in the detent coil circuit of the reverse drive lever. – Short circuit in the detent coil circuit of the reverse drive lever. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Doing an operational check on the detent coil

Check the detent coil in the reverse drive lever:

OK: Diagnosis completed.

Proceed as stated below: • • • •

Ignition OFF. Reverse drive lever and range shift lever in neutral. Start the engine. 2 seconds after the engine starts, move the reverse drive lever to the forward position or to the reverse position. • The detent coil energizes and the reverse drive lever is held in the position selected (forward or reverse position).

NOT OK: GO TO: Circuit/harness test for detent coil in reverse drive lever; see Technical Manual, Section 245, Group EPC.

– – –1/1

TM4726 (01NOV03)

211-EPC-16

6020 to 6920S tractors 022204

PN=550

EPC Diagnostic Trouble Codes

EPC 306027.31 — Reverse Solenoid, Circuit Fault

EPC 306027.31 is saved if there is an open lead or a short circuit in the circuit of the reverse solenoid valve

when the solenoid valve is active. This diagnostic trouble code triggers the alarm level: “Information”.

211 EPC 17

LX25546,000035F –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective reverse solenoid (Y36). • Defective/bad ground connection (XGND46). • Circuit fault in reverse solenoid: – Open lead in reverse solenoid circuit. – Short circuit in reverse solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Valves in the Front Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Valves in the Front Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-17

6020 to 6920S tractors 022204

PN=551

EPC Diagnostic Trouble Codes 2 Checking the enable pressure

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for reverse solenoid valve (Y36); see Technical Manual, Section 245, Group EPC.

NOTE: The transmission control unit (EPC) provides electrical power to the enable proportional solenoid valve (Y38) only if there is no problem in the circuit of the direction solenoid valves (forward and reverse). Perform the test only while the engine is running and range-shift lever is in neutral.

211 EPC 18

Access address EPC 13: EPC 13 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors

NOT OK: GO TO: Circuit/harness test for reverse solenoid valve (Y36); see Technical Manual, Section 245, Group EPC.

Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi)

– – –1/1

EPC 306028.31 — Forward Solenoid, Circuit Fault

EPC 306028.31 is saved if there is an open lead or a short circuit in the circuit of the forward solenoid valve

when the solenoid valve is active. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000360 –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-18

6020 to 6920S tractors 022204

PN=552

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective forward solenoid (Y33). • Defective/bad ground connection (XGND46). • Circuit fault in forward solenoid: – Open lead in forward solenoid circuit. – Short circuit in forward solenoid circuit. Additional references:

211 EPC 19

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Valves in the Front Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Valves in the Front Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-19

6020 to 6920S tractors 022204

PN=553

EPC Diagnostic Trouble Codes 2 Checking the enable pressure

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for forward solenoid valve (Y33); see Technical Manual, Section 245, Group EPC.

NOTE: The transmission control unit (EPC) provides electrical power to the enable proportional solenoid valve (Y38) only if there is no problem in the circuit of the direction solenoid valves (forward and reverse). Perform the test only while the engine is running and range-shift lever is in neutral.

211 EPC 20

Access address EPC 13: EPC 13 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors

NOT OK: GO TO: Circuit/harness test for forward solenoid valve (Y33); see Technical Manual, Section 245, Group EPC.

Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi)

– – –1/1

EPC 306033.14 — Proportional Enable Solenoid, Circuit Fault

EPC 306033.14 is saved if there is an open lead or a short circuit in the circuit of the proportional enable solenoid valve when the solenoid valve is active. This

diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000362 –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-20

6020 to 6920S tractors 022204

PN=554

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective proportional enable solenoid valve (Y38). • Circuit fault in proportional solenoid valve: – Open lead in proportional solenoid valve circuit. – Short circuit in proportional solenoid valve circuit. Additional references:

211 EPC 21

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Valves in the Front Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Valves in the Front Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-21

6020 to 6920S tractors 022204

PN=555

EPC Diagnostic Trouble Codes 2 Check clutch charge pressure

211 EPC 22

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for enable proportional solenoid valve (Y38); see Technical Manual, Section 245, Group EPC.

NOTE: Diagnostic address EPC 13 shows the actual clutch charge pressure at the proportional enable solenoid valve (Y38). The clutch charge pressure is dependent on the position of the clutch pedal and the position of the reverse drive lever. There is only clutch charge pressure if the reverse drive lever is set to the forward or reverse position after a valid engine start (reverse drive lever and range shift lever in neutral) and if the clutch pedal is not actuated. The clutch charge pressure builds up slowly (modulating), depending on the engine speed, until the max. transmission system pressure has been reached. Perform the test only while the engine is running and range-shift lever is in neutral.

NOT OK: Circuit/harness test for enable proportional solenoid valve (Y38); see Technical Manual, Section 245, Group EPC.

Access address EPC 13: EPC 13 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi) – – –1/1

EPC 306034.31 — Proportional Enable Solenoid Valve Opened by Mistake

Diagnostic trouble code EPC 306034.31 is saved when the transmission control unit registers via the enable pressure sending unit a pressure above 80 kPa (0.8

bar; 11.6 psi) although the transmission enable relay is not activated. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000363 –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-22

6020 to 6920S tractors 022204

PN=556

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective proportional enable solenoid valve (Y38). • Mechanical defect at proportional enable solenoid valve (Y38). – Sticks in open position. • Circuit fault in proportional enable solenoid valve (Y38). – A circuit problem additionally generates an EPC diagnostic trouble code (EPC 306033.14 takes priority) • Defective enable pressure sending unit (B105). • Circuit fault at the enable pressure sending unit (B105). – A short circuit to battery voltage in the power supply circuit for enable pressure sending unit (B105). – A short circuit to 5-volt or 12-volt in the signal line circuit for enable pressure sending unit (B105). Additional references:

211 EPC 23

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Valves in the Front Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Valves in the Front Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual. • “Replacing the Temperature Sensor and Pressure Switches” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 10). • “Replacing the Temperature Sensor and Pressure Switches” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 10).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic code EPC 306033.14 must be processed first.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-23

6020 to 6920S tractors 022204

PN=557

EPC Diagnostic Trouble Codes 2 Checking the voltage at the enable pressure sender (B105)

• Ignition ON (engine OFF).

OK: GO TO 3.

• Access address EPC 13:

NOT OK: GO TO: Circuit/harness test for enable pressure sending unit (B105); see Technical Manual, Section 245, Group EPC.

EPC 13 — Voltage, sending unit for enable pressure (B105)—Specification Ignition ON (engine OFF).—Voltage range ....................................................................... between 0.5 and 0.55 volts (display: 0050XXXX at 0.5 volts)

211 EPC 24

– – –1/1

3 Checking the pressure range of the enable pressure sending unit (B105)

NOTE: Diagnostic address EPC 13 shows the actual clutch charge pressure at the proportional enable solenoid valve (Y38). The clutch charge pressure is dependent on the position of the clutch pedal and the position of the reverse drive lever. There is only clutch charge pressure if the reverse drive lever is set to the forward or reverse position after a valid engine start (reverse drive lever in neutral) and if the clutch pedal is not actuated. The clutch charge pressure builds up slowly (modulating), depending on the engine speed, until the max. transmission system pressure has been reached. Perform the test only while the engine is running and range-shift lever is in neutral. Access address EPC 13: EPC 13 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors

OK: Diagnosis completed. NOT OK: Defective proportional enable solenoid valve Y38: • Mechanical defect (sticking in open position). • Electrical defect, GO TO Circuit/harness test for enable proportional solenoid valve (Y38); see Technical Manual, Section 245, Group EPC.

Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi) – – –1/1

TM4726 (01NOV03)

211-EPC-24

6020 to 6920S tractors 022204

PN=558

EPC Diagnostic Trouble Codes

EPC 306035.31 — Proportional Enable Solenoid Valve Closed by Mistake

Diagnostic trouble code EPC 306035.31 is saved when the transmission control unit registers no pressure via the enable pressure sending unit although the

transmission enable relay is activated. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000364 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective proportional enable solenoid valve (Y38). • Mechanical defect at proportional enable solenoid valve (Y38). – Sticks in closed position. • Circuit fault in proportional enable solenoid valve (Y38). – A circuit problem additionally generates an EPC diagnostic trouble code (EPC 306033.14 takes priority) • Defective enable pressure sending unit (B105). • Circuit fault at the enable pressure sending unit (B105). – A short to ground or an open circuit in the power supply circuit for enable pressure sending unit (B105). – A short to ground or an open circuit in the signal line circuit for enable pressure sending unit (B105). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Valves in the Front Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Valves in the Front Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual. • “Replacing the Temperature Sensor and Pressure Switches” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 10). • “Replacing the Temperature Sensor and Pressure Switches” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 10).

– – –1/1

TM4726 (01NOV03)

211-EPC-25

6020 to 6920S tractors 022204

PN=559

211 EPC 25

EPC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 EPC 26

1.2 Priority diagnostic code must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the voltage at the enable pressure sender (B105)

• Ignition ON (engine OFF).

OK: GO TO 3.

• Access address EPC 13:

NOT OK: GO TO: Circuit/harness test for enable pressure sending unit (B105); see Technical Manual, Section 245, Group EPC.

EPC 13 — Voltage, sending unit for enable pressure (B105)—Specification Ignition ON (engine OFF).—Voltage range ....................................................................... between 0.5 and 0.55 volts (display: 0050XXXX at 0.5 volts)

– – –1/1

TM4726 (01NOV03)

211-EPC-26

6020 to 6920S tractors 022204

PN=560

EPC Diagnostic Trouble Codes 3 Checking the pressure range of the enable pressure sending unit (B105)

NOTE: Diagnostic address EPC 13 shows the actual clutch charge pressure at the proportional enable solenoid valve (Y38). The clutch charge pressure is dependent on the position of the clutch pedal and the position of the reverse drive lever. There is only clutch charge pressure if the reverse drive lever is set to the forward or reverse position after a valid engine start (reverse drive lever in neutral) and if the clutch pedal is not actuated. The clutch charge pressure builds up slowly (modulating), depending on the engine speed, until the max. transmission system pressure has been reached. Perform the test only while the engine is running and range-shift lever is in neutral. Access address EPC 13: EPC 13 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors

OK: Diagnosis completed. NOT OK: Defective proportional enable solenoid valve Y38: 211 • Mechanical defect EPC (sticking in closed 27 position). • Electrical defect, GO TO Circuit/harness test for enable proportional solenoid valve (Y38); see Technical Manual, Section 245, Group EPC.

Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi) – – –1/1

EPC 306039.31 — Park Lock Switch Signal and Signal from Forward or Reverse Switch Simultaneously Active

Diagnostic trouble code EPC 306039.31 is saved when the transmission control unit registers a direction signal (forwards or reverse) from the reverse drive lever while

the park lock is on (park switch closed). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000366 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-27

6020 to 6920S tractors 022204

PN=561

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 28

• Operator error: Reverse drive lever was moved forward or backward while the range lever was in the park position. • Defective park switch (S116) (on tractors up to serial no. 398790). • Defective park switch (S114) (on tractors from serial no. 398791). • Circuit fault in park switch: – Short to ground in the circuit of the park switch. • Circuit fault in the reverse drive lever: – A circuit problem additionally generates diagnostic trouble codes: EPC 306040.31, EPC 306041.31, EPC 306042.31 or EPC 306043.31. These diagnostic trouble codes take priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Park Lock Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions” on 6120 to 6620 tractors, Repair Manual, Section 40, Group 25. • “Replacing the Park Lock Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions” on 6820 and 6920 tractors, Repair Manual, Section 40, Group 25. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-28

6020 to 6920S tractors 022204

PN=562

EPC Diagnostic Trouble Codes 2 Checking the park switch circuit at address EPC007

Access address EPC007. EPC007 –– Status, park switch—Specification Range lever set to park position:—Status ...................................................... XXXXX1XX Range lever not set to park position:— Status .............................................................................................................. XXXXX0XX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for park switch (S114 or S116); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO: Circuit/harness test for park switch (S114 or S116); see Technical Manual, Section 245, Group EPC.

– – –1/1

EPC 306040.31 — Not-Neutral Switch Closed by Mistake

Diagnostic trouble code EPC 306040.31 is saved if the transmission control unit registers a closed not-neutral switch, although the direction of travel switches

(forward and reverse) are open (not activated). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000367 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-29

6020 to 6920S tractors 022204

PN=563

211 EPC 29

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 30

• This diagnostic trouble code may be caused by mistake when ignition is switched ON. Deal with this diagnostic trouble code only if it occurs during operation. • Defective not-neutral switch: – in reverse drive lever (A47) (without "N" indicator light). – in reverse drive lever (A68) (with "N" indicator light). • Circuit fault in not-neutral switch: – Short to battery voltage in the switch circuit (cable 561). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-30

6020 to 6920S tractors 022204

PN=564

EPC Diagnostic Trouble Codes 2 Checking the switch circuit in the reverse drive lever

Access address EPC007. EPC007 –– Status, reverse drive lever switch (A47 or A68)—Specification Reverse drive lever in neutral:—Status of forward switch ............................................................................................. 0XXXXXXX Status of reverse switch .................................................................................. X0XXXXXX Status of not-neutral switch ............................................................................. XX0XXXXX Reverse drive lever in forward position— Status of forward switch .................................................................................. 1XXXXXXX Status of reverse switch .................................................................................. X0XXXXXX Status of not-neutral switch ............................................................................. XX1XXXXX Reverse drive lever in reverse position:—Status of forward switch ................................................................. 0XXXXXXX Status of reverse switch .................................................................................. X1XXXXXX Status of not-neutral switch ............................................................................. XX1XXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. 211 EPC 31

NOT OK: GO TO 3.

– – –1/1

3 Checking the circuit

Check the circuit:

OK: Diagnosis completed.

• On tractors with "N" indicator light at reverse drive lever (A68), see: – Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. – Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC. • On tractors without "N" indicator light at reverse drive lever (A47), see: – Circuit/harness test for not-neutral switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for forward switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for reverse switch; see Technical Manual, Section 245, Group EPC.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

EPC 306041.31 — Forward and Reverse Switches Closed at Same Time

Diagnostic trouble code EPC 306041.31 is saved when the transmission control unit registers that the forward and reverse switches are closed (active)

simultaneously. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000368 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-31

6020 to 6920S tractors 022204

PN=565

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 32

• Defective forward switch in the reverse drive lever. • Defective reverse switch in the reverse drive lever. • Defective line connection between the reverse drive lever and the transmission control unit (EPC). – Line 590 for forward switch. – Line 569 for reverse switch. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the switch circuit in the reverse drive lever

Access address EPC007. EPC007 –– Status, reverse drive lever switch (A47 or A68)—Specification Reverse drive lever in neutral:—Status of forward switch ............................................................................................. 0XXXXXXX Status of reverse switch .................................................................................. X0XXXXXX Reverse drive lever in forward position— Status of forward switch .................................................................................. 1XXXXXXX Status of reverse switch .................................................................................. X0XXXXXX Reverse drive lever in reverse position:—Status of forward switch ................................................................. 0XXXXXXX Status of reverse switch .................................................................................. X1XXXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-EPC-32

6020 to 6920S tractors 022204

PN=566

EPC Diagnostic Trouble Codes 3 Checking the circuit

Check the circuit:

OK: Diagnosis completed.

• On tractors with "N" indicator light at reverse drive lever (A68), see: – Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. – Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC. • On tractors without "N" indicator light at reverse drive lever (A47), see: – Circuit/harness test for forward switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for reverse switch; see Technical Manual, Section 245, Group EPC.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

EPC 306042.31 — Forward Switch Closed and Not-Neutral Switch Open

Diagnostic trouble code EPC 306042.31 is saved when the transmission control unit registers that the forward switch is closed although the not-neutral switch is open

(not activated). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000369 –19–01SEP03–1/1

Diagnostics The following are possible causes: • Defective forward switch in the reverse drive lever. • Defective not-neutral switch in the reverse drive lever. • Defective line connection between the reverse drive lever and the transmission control unit (EPC). – Line 590 for forward switch. – Line 561 for not-neutral switch. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

TM4726 (01NOV03)

211-EPC-33

6020 to 6920S tractors 022204

PN=567

211 EPC 33

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 EPC 34

– – –1/1

2 Checking the switch circuit in the reverse drive lever

Access address EPC007. EPC007 –– Status, reverse drive lever switch (A47 or A68)—Specification Reverse drive lever in neutral:—Status of forward switch ............................................................................................. 0XXXXXXX Status of not-neutral switch ............................................................................. XX0XXXXX Reverse drive lever in forward position— Status of forward switch .................................................................................. 1XXXXXXX Status of not-neutral switch ............................................................................. XX1XXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: GO TO 3.

– – –1/1

3 Checking the circuit

Check the circuit:

OK: Diagnosis completed.

• On tractors with "N" indicator light at reverse drive lever (A68), see: – Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. – Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC. • On tractors without "N" indicator light at reverse drive lever (A47), see: – Circuit/harness test for not-neutral switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for forward switch; see Technical Manual, Section 245, Group EPC.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

EPC 306043.31 — Reverse Switch Closed and Not-Neutral Switch Open

Diagnostic trouble code EPC 306043.31 is saved when the transmission control unit registers that the reverse switch is closed although the not-neutral switch is open

(not activated). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000036A –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-34

6020 to 6920S tractors 022204

PN=568

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective reverse switch in the reverse drive lever. • Defective not-neutral switch in the reverse drive lever. • Defective line connection between the reverse drive lever and the transmission control unit (EPC). – Line 569 for reverse switch. – Line 561 for not-neutral switch. Additional references:

211 EPC 35

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the switch circuit in the reverse drive lever

Access address EPC007. EPC007 –– Status, reverse drive lever switch (A47 or A68)—Specification Reverse drive lever in neutral:—Status of reverse switch ............................................................................................. X0XXXXXX Status of not-neutral switch ............................................................................. XX0XXXXX Reverse drive lever in reverse position:—Status of reverse switch ................................................................. X1XXXXXX Status of not-neutral switch ............................................................................. XX1XXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-EPC-35

6020 to 6920S tractors 022204

PN=569

EPC Diagnostic Trouble Codes 3 Checking the circuit

Check the circuit:

OK: Diagnosis completed.

• On tractors with "N" indicator light at reverse drive lever (A68), see: – Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. – Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC. • On tractors without "N" indicator light at reverse drive lever (A47), see: – Circuit/harness test for not-neutral switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for reverse switch; see Technical Manual, Section 245, Group EPC.

211 EPC 36

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

EPC 306046.31 — Neutral Switch in Reverse Drive Lever Closed During Initialization

Diagnostic trouble code EPC 306046.31 is saved when the transmission control unit registers that the neutral switch in the reverse drive lever is closed when ignition

is switched on (i.e. during initialization), although the neutral switch ought to be open. Alarm level: Information

LX25546,00005F1 –19–01SEP03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus, AutoQuad and AutoQuad Plus Transmissions.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-36

6020 to 6920S tractors 022204

PN=570

EPC Diagnostic Trouble Codes 2 Check EPC input value

Access address EPC026:

OK: GO TO 3.

EPC026 –– Input address for selecting the reverse drive lever—Specification If the tractor is equipped with a reverse drive lever without an "N" indicator light:—Status ................................................................................................................... 0 If the tractor is equipped with a reverse drive lever with an "N" indicator light:— Status .............................................................................................................................. 1

NOT OK: Enter prescribed value and delete the diagnostic trouble code.

211 EPC 37

– – –1/1

3 Checking the neutral switch

Access address EPC007.

OK: GO TO 6.

EPC007 –– Status, neutral switch (A68)—Specification Reverse drive lever in neutral position:— Status .............................................................................................................. XXX0XXXX Reverse drive lever not in neutral position:—Status ............................................................................................. XXX1XXXX

NOT OK: GO TO 4.

– – –1/1

4 Initial component test

Perform a visual inspection of reverse drive lever (A68) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 5. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Reverse Drive lever (A68), see 245-EPC.

LX1025949 –UN–13OCT03

A68—Reverse drive lever ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

TM4726 (01NOV03)

211-EPC-37

6020 to 6920S tractors 022204

PN=571

EPC Diagnostic Trouble Codes 5 Checking the circuit

• Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. • Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC.

211 EPC 38

OK: GO TO 6. NOT OK: Recondition as required and do an Operational Check for Reverse Drive Lever (A68), see 245-EPC.

– – –1/1

6 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the reverse drive lever, see summary of wiring layout in the circuit/harness test for the reverse drive lever. – Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. – Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC. • For back-up, see also additional references for circuit checks: – Reference 245-EPC-100, Test Procedure in the Case of Occasional EPC Circuit Problems (EPC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Reverse Drive Lever (A68), see 245-EPC.

– – –1/1

EPC 306050.03 — Transmission Enable Pressure Too High

Diagnostic trouble code EPC 306050.03 is saved when the transmission control unit registers a transmission enable pressure above 2000 kPa (20 bar; 290 psi).

This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000036B –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-38

6020 to 6920S tractors 022204

PN=572

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective enable pressure sending unit (B105). • Circuit fault in the enable pressure sending unit: – Short to battery voltage in the switch circuit (cable 549). – Short to battery voltage in the 5-volt power supply circuit (cable 243) of the enable pressure sending unit. • Transmission enable pressure too high.

211 EPC 39

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • Reference 255-15-002, PowrQuad Transmission—Test Ports. • Reference 255-20-230, PowrQuad Module—Hydraulic Diagram, Electrically Actuated PowrQuad Module.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the voltage at the enable pressure sender (B105)

• Ignition ON (engine OFF).

OK: GO TO 3.

• Access address EPC 13:

NOT OK: GO TO: Circuit/harness test for enable pressure sending unit (B105); see Technical Manual, Section 245, Group EPC.

EPC 13 — Voltage, sending unit for enable pressure (B105)—Specification Ignition ON (engine OFF).—Voltage range ....................................................................... between 0.5 and 0.55 volts (display: 0050XXXX at 0.5 volts)

– – –1/1

TM4726 (01NOV03)

211-EPC-39

6020 to 6920S tractors 022204

PN=573

EPC Diagnostic Trouble Codes 3 Checking the pressure range of the enable pressure sending unit (B105) 211 EPC 40

NOTE: Diagnostic address EPC 13 shows the actual clutch charge pressure at the proportional enable solenoid valve (Y38). The clutch charge pressure is dependent on the position of the clutch pedal and the position of the reverse drive lever. There is only clutch charge pressure if the reverse drive lever is set to the forward or reverse position after a valid engine start (reverse drive lever in neutral) and if the clutch pedal is not actuated. The clutch charge pressure builds up slowly (modulating), depending on the engine speed, until the max. transmission system pressure has been reached. Perform the test only while the engine is running and range-shift lever is in neutral.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for enable pressure sending unit (B105); see Technical Manual, Section 245, Group EPC. NOT OK: Check system pressure, GO TO 4.

Access address EPC 13: EPC 13 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi) – – –1/1

4 Checking system pressure

Check system pressure. See Reference 255-15-004.

OK: GO TO 5. NOT OK: Adjust system pressure. See Reference 255-15-014. – – –1/1

5 Replacing the enable pressure sending unit (B105)

Replace the enable pressure sending unit (B105) and carry out an operational test. • “Replacing the Temperature Sensor and Pressure Switches” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 10). • “Replacing the Temperature Sensor and Pressure Switches” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 10).

OK: Diagnosis completed. NOT OK: Type of error indicates a loose contact, GO TO: Circuit/harness test for enable pressure sending unit (B105); see Technical Manual, Section 245, Group EPC.

– – –1/1

TM4726 (01NOV03)

211-EPC-40

6020 to 6920S tractors 022204

PN=574

EPC Diagnostic Trouble Codes

EPC 306051.04 — Transmission Enable Pressure Too Low

Diagnostic trouble code EPC 306051.04 is saved when the transmission control unit registers no transmission enable pressure (pressure below 50 kPa/0.5 bar/ 7.3

psi). This diagnostic trouble code triggers the alarm level: “Information”.

211 EPC 41

LX25546,000036C –19–01SEP03–1/1

Diagnostics The following are possible causes: • Defective enable pressure sending unit (B105). • Circuit fault in the enable pressure sending unit: – A short to ground or an open circuit in the circuit for the enable pressure sending unit (cable 549). – Short to ground or an open circuit in the 5-volt power supply circuit (cable 243) of the enable pressure sending unit. • Transmission enable pressure too low. • A defect in the forward clutch or the reverse brake. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • Reference 255-15-002, PowrQuad Transmission—Test Ports. • Reference 255-20-230, PowrQuad Module—Hydraulic Diagram, Electrically Actuated PowrQuad Module. • “Replacing the Temperature Sensor and Pressure Switches” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 10). • “Replacing the Temperature Sensor and Pressure Switches” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 10).

– – –1/1

TM4726 (01NOV03)

211-EPC-41

6020 to 6920S tractors 022204

PN=575

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 EPC 42

– – –1/1

2 Checking the voltage at the enable pressure sender (B105)

• Ignition ON (engine OFF).

OK: GO TO 3.

• Access address EPC013:

NOT OK: GO TO: Circuit/harness test for enable pressure sending unit (B105); see Technical Manual, Section 245, Group EPC.

EPC013 — Voltage, enable pressure sender (B105)—Specification Ignition ON (engine OFF).—Voltage range ....................................................................... between 0.5 and 0.55 volts (display: 0050XXXX at 0.5 volts)

– – –1/1

TM4726 (01NOV03)

211-EPC-42

6020 to 6920S tractors 022204

PN=576

EPC Diagnostic Trouble Codes 3 Checking the pressure range of the enable pressure sending unit (B105)

NOTE: Diagnostic address EPC 13 shows the actual clutch charge pressure at the proportional enable solenoid valve (Y38). The clutch charge pressure is dependent on the position of the clutch pedal and the position of the reverse drive lever. There is only clutch charge pressure if the reverse drive lever is set to the forward or reverse position after a valid engine start (reverse drive lever in neutral) and if the clutch pedal is not actuated. The clutch charge pressure builds up slowly (modulating), depending on the engine speed, until the max. transmission system pressure has been reached. Perform the test only while the engine is running and range-shift lever is in neutral.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for enable pressure sending 211 unit (B105); see EPC Technical Manual, 43 Section 245, Group EPC. NOT OK: Check system pressure, GO TO 4.

Access address EPC013: EPC013 — Pressure, enable pressure sender (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum pressure ............................................ 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 - 6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ......................... 1200 kPa - 0 kPa on 6120 - 6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bar; 174 psi)

1400 kPa (14 bar; 203 psi)

1750 kPa (17.5 bar; 254 psi) – – –1/1

4 Checking system pressure

Check system pressure. See Reference 255-15-004.

OK: GO TO 5. NOT OK: Adjust system pressure. See Reference 255-15-014. – – –1/1

5 Checking the direction clutch/brake

Perform the pressure test at the direction clutch/brake with the engine running, the range shift lever in neutral and the reverse drive lever in the relevant direction (i.e. the direction to be checked). For the test, see: • Reference 255-15-008, PowrQuad Transmission—Checking Pressure at Forward Clutch. • Reference 255-15-009, PowrQuad Transmission—Checking Pressure at Reverse Brake.

OK: Replace the enable pressure sending unit and carry out an operational test. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-EPC-43

6020 to 6920S tractors 022204

PN=577

EPC Diagnostic Trouble Codes

EPC 306053.31 — Clutch Pedal Potentiometer is Defective

211 EPC 44

Diagnostic trouble code EPC 306053.31 is saved when the clutch pedal potentiometer is defective (diagnostic trouble code EPC 306014.02 is active) and the clutch pedal is fully pressed down. This diagnostic trouble code triggers the alarm level: “Information”. Diagnostic trouble code EPC 306014.02 takes priority.

LX25546,000036D –19–01JUL01–1/1

EPC 306054.31 — Clutch Pedal Switch Opened by Mistake

Diagnostic trouble code EPC 306054.31 is saved when it is registered that the clutch pedal switch is open although the clutch pedal is not being pressed. This

diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000036E –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-44

6020 to 6920S tractors 022204

PN=578

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective clutch pedal potentiometer (B65) additionally generates an additional diagnostic trouble code (EPC 306014.02, EPC 306015.03 and EPC 306016.04 take priority). • Defective clutch pedal switch (S72). • Circuit fault in clutch pedal switch. – Short to ground or open lead in the switch circuit. Additional references:

211 EPC 45

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6120 to 6620 tractors (Repair Manual, Section 55, Group 05). • “Reconditioning the Clutch Actuation (PowrQuad Plus and AutoQuad transmissions)” on 6820 and 6920 tractors (Repair Manual, Section 55, Group 05).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the circuit of clutch pedal switch (S72)

Perform the test only while the engine is running and range-shift lever is in neutral. Access address EPC 09: EPC 09 –– Status, clutch pedal switch (S72)—Specification Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Status .............................................................................................................. 1XXXXXXX Reverse drive lever in forward or reverse position and clutch pedal pressed:— Status .............................................................................................................. 0XXXXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal switch (S72); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO: Circuit/harness test for clutch pedal switch (S72); see Technical Manual, Section 245, Group EPC. – – –1/1

TM4726 (01NOV03)

211-EPC-45

6020 to 6920S tractors 022204

PN=579

EPC Diagnostic Trouble Codes

EPC 306055.31 — Come-Home Operation Activated

211 EPC 46

Diagnostic trouble code EPC 306055.31 is generated when the Come-Home operation is active (Come-Home connector K10/4 plugged into the “COME HOME” position). This diagnostic trouble code triggers the alarm level: “CAUTION”. The following are possible causes: • Come-Home connector K10/4 was plugged into the “COME HOME” position. • Defective transmission enable relay K09/5. • Circuit fault in the transmission enable relay:

– Short circuit to the supply voltage (battery voltage) in the transmission enable relay circuit. IMPORTANT: This diagnostic trouble code only serves to inform the operator that the “Come-Home” mode is active. The control unit only recognizes the “Come-Home” operation when the reverse drive lever is in neutral and the control unit registers the “Come-Home connector K10/4 plugged in” signal within 2 seconds after the engine start.

LX25546,000036F –19–01APR02–1/1

EPC 306056.31 — Forward/Reverse Switch Activated During Initialization

Diagnostic trouble code EPC 306056.31 is saved when the transmission control unit registers a signal from one of the travel direction switches (forward/reverse or

not-neutral switch) directly after the ignition is switched ON. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000370 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-46

6020 to 6920S tractors 022204

PN=580

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Operator error: Operator switches the reverse drive lever to forward or reverse directly after the ignition is switched ON. Only actuate the reverse drive lever 2 seconds after the ignition is switched ON. • This diagnostic trouble code may be caused by mistake when ignition is switched ON. Deal with this diagnostic trouble code only if it occurs during operation. • Defective forward switch in the reverse drive lever. • Defective reverse switch in the reverse drive lever. • Defective not-neutral switch in the reverse drive lever. • Defective line connection between the reverse drive lever and the transmission control unit (EPC). – Line 590 for forward switch. – Line 569 for reverse switch. – Line 561 for not-neutral switch. Additional references:

211 EPC 47

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-47

6020 to 6920S tractors 022204

PN=581

EPC Diagnostic Trouble Codes 2 Checking the switch circuit in the reverse drive lever

211 EPC 48

Access address EPC007. EPC007 –– Status, reverse drive lever switch (A47 or A68)—Specification Reverse drive lever in neutral:—Status of forward switch ............................................................................................. 0XXXXXXX Status of reverse switch .................................................................................. X0XXXXXX Status of neutral switch ................................................................................... XX0XXXXX Reverse drive lever in forward position— Status of forward switch .................................................................................. 1XXXXXXX Status of reverse switch .................................................................................. X0XXXXXX Status of neutral switch ................................................................................... XX1XXXXX Reverse drive lever in reverse position:—Status of forward switch ................................................................. 0XXXXXXX Status of reverse switch .................................................................................. X1XXXXXX Status of neutral switch ................................................................................... XX1XXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: GO TO 3.

– – –1/1

3 Checking the circuit

Check the circuit:

OK: Diagnosis completed.

• On tractors with "N" indicator light at reverse drive lever (A68), see: – Circuit/harness test for reverse drive lever (A68) up to tractor serial no. 398790; see 245-EPC. – Circuit/harness test for reverse drive lever (A68) from tractor serial no. 398791; see 245-EPC. • On tractors without "N" indicator light at reverse drive lever (A47), see: – Circuit/harness test for not-neutral switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for forward switch; see Technical Manual, Section 245, Group EPC. – Circuit/harness test for reverse switch; see Technical Manual, Section 245, Group EPC.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

EPC 306057.31 — Faulty Transmission Enable Signal

Diagnostic trouble code EPC 306057.31 is saved when no transmission enable signal is received by the transmission control unit, although the transmission

enable relay was activated and the clutch pedal switch is closed. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000371 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-48

6020 to 6920S tractors 022204

PN=582

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective transmission enable relay K09/5. • Circuit fault in the transmission enable relay: – Short to ground or open lead in the circuit for the transmission enable signal (cable 553). – Open lead in the coil circuit (ground lead 560) between the basic control unit (BCU) and transmission enable relay K09/5. • Circuit fault between the reverse drive lever (A47 or A68) and the basic control unit (BCU). – Short to ground or open lead in the circuit of the reverse drive lever (forward signal 590, reverse signal 569 and/or not-neutral signal 561). • Faulty rev counter B01 (with Delphi/Lucas DP201 injection pump) or crankshaft speed sending unit B72 (with Bosch VP44 injection pump, Stanadyne DE10 injection pump or HPCR fuel system).

211 EPC 49

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • Reference 240-25A-010, Fuses. • “Replacing the Switches on the Multi-function Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switches on the Multi-function Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-49

6020 to 6920S tractors 022204

PN=583

EPC Diagnostic Trouble Codes 2 Checking the direction signals to the BCU

211 EPC 50

Access address BCU017.

OK: GO TO 3.

BCU017 –– Status, reverse drive lever switch (A47 or A68)—Specification Reverse drive lever in forward position:—Status ....................................................................................................... X110 Reverse drive lever in reverse position:—Status ....................................................................................................... X011 Reverse drive lever in neutral position:— Status ........................................................................................................................ X000

NOT OK: Check reverse drive lever: On tractors without "N" indicator light at reverse drive lever (A47), GO TO: Circuit test for reverse drive lever (A47); see Technical Manual, Section 245, Group EPC. On tractors with "N" indicator light at reverse drive lever (A68), GO TO: Circuit test for reverse drive lever (A68); see Technical Manual, Section 245, Group EPC.

– – –1/1

3 Checking the circuit of the transmission enable relay

Perform the test only while the engine is running and range-shift lever is in neutral. Access address EPC009: EPC009 –– Status, transmission enable signal (output signal of transmission enable relay K09/5)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Status ........................................................... X00XXXXX Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Status .............................................................................................................. X11XXXXX Reverse drive lever in forward or reverse position and clutch pedal pressed:— Status .............................................................................................................. X00XXXXX

OK: • GO TO 4. • Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission enable relay (K09/5); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO: Circuit/harness test for transmission enable relay (K09/5); see Technical Manual, Section 245, Group EPC.

– – –1/1

4 Checking the signal from the rev counter

NOTE: This diagnostic trouble code (EPC 306057.31) may be caused by the rev counter (B01) or crankshaft speed sending unit (B72) cutting out briefly.

OK: • Diagnosis completed.

Test-drive the tractor and check the engine speed indicated on the dashboard.

• Type of error indicates a loose contact, GO TO 5. NOT OK: If no engine speed is displayed, GO TO 5.

– – –1/1

TM4726 (01NOV03)

211-EPC-50

6020 to 6920S tractors 022204

PN=584

EPC Diagnostic Trouble Codes 5 Checking the rev counter

Check the rev counter:

OK: Diagnosis completed.

• Tractors without ECU or with ECU Level 1 (Lucas/Delphi injection pump): See Circuit/harness test for engine speed sender (B01); see Section 245, Group BCU in the Technical manual. • Tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (Stanadyne DE10 injection pump): See the procedure for diagnosing trouble code SPN 637 FMI 08 in the relevant CTM.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

EPC 306058.31 — Ground Speed Registered During Calibration

Diagnostic trouble code EPC 306058.31 is saved when the transmission control unit registers ground speed

during the calibration. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000372 –19–01SEP02–1/1

Diagnostics The following are possible causes: • The tractor is not standing on a level surface during the calibration. The tractor can therefore roll during the calibration (ground speed exists). • Ground speed received via CAN BUS is not correct (ground speed sender B09/B35 defective). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Wheel Speed Sending Unit” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 30). • “Replacing the Wheel Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 30).

– – –1/1

TM4726 (01NOV03)

211-EPC-51

6020 to 6920S tractors 022204

PN=585

211 EPC 51

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 EPC 52

– – –1/1

2 Check CAN BUS signal of ground speed sender in EPC control unit

Access address EPC 04. EPC 04 –– Status, Ground Speed Sender (B35/B09)—Specification Signal while tractor is travelling:—Status (signal toggles between 0 and 1).................................................................... XX1XXXXX XX0XXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 4. NOT OK: GO TO 3.

– – –1/1

3 Check ground speed sender in BCU

Access address BCU 04: BCU 04 –– Status, Ground Speed Sender (B35/B09)—Specification No signal detected (tractor is stationary):—Status ..................................................................................................... X0X Signal detected by sender (during travel):—Status ............................................................................................................ X1X

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 4. NOT OK: Check ground speed sender circuit, GO TO 4.

– – –1/1

4 Check circuit of ground speed sender (B35/B09)

Tractor not equipped with creeper: • Circuit/harness test for wheel speed sending unit (B35) for 6120 - 6620 tractors; see Technical Manual, Section 245, Group BCU. • Circuit/harness test for wheel speed sending unit (B35) for 6820 and 6920 tractors; see Technical Manual, Section 245, Group BCU.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

Tractor equipped with creeper: • Circuit/harness test for wheel speed sending unit (B09) for 6120 - 6620 tractors; see Technical Manual, Section 245, Group BCU. • Circuit/harness test for wheel speed sending unit (B09) for 6820 and 6920 tractors; see Technical Manual, Section 245, Group BCU. – – –1/1

TM4726 (01NOV03)

211-EPC-52

6020 to 6920S tractors 022204

PN=586

EPC Diagnostic Trouble Codes

EPC 306059.31 — Excessively High Transmission Speed During Calibration

Diagnostic trouble code EPC 306059.31 is saved when, during the calibration, the transmission control unit registers a transmission speed that exceeds the

tolerance range. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000373 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Transmission speed sender (B104) defective. • Faulty frequency transmission: – Faulty sender installation. – Faulty (additional) transmission through foreign objects (swarf) or dirt between the sender and the gear. – Mechanically defective transmission speed sender (B104). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Speed Sender” on 6120 to 6620 tractors, see Section 55, Group 25 in the Repair manual. • “Replacing the Speed Sender” on 6820 and 6920 tractors, see Section 55, Group 20 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-53

6020 to 6920S tractors 022204

PN=587

211 EPC 53

EPC Diagnostic Trouble Codes 2 Checking the transmission speed sender (B104)

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3.

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 4th gear.

211 EPC 54

NOT OK: GO TO 3. • Access address EPC 14. EPC 14 –– Speed, transmission speed sender (B104)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 4th gear) ............................................................. 1000 rpm

NOTE: Engine speed matches transmission speed only in 4th gear.

– – –1/1

3 Checking the circuit of the transmission speed sender

Checking the circuit of the transmission speed sender: • Circuit/harness test for transmission speed sender (B104/1) for 6820 and 6920 tractors; see Technical Manual, Section 245, Group EPC. • Circuit/harness test for transmission speed sender (B104/2) for 6120 to 6620 tractors; see Technical Manual, Section 245, Group EPC.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

EPC 306060.31 — Engine Control Unit or Basic Control Unit has Stopped Transmitting Data (Engine Speed)

Diagnostic trouble code EPC 306060.31 is saved when there is a problem with the transference of data between the ECU/BCU and the transmission control unit. Reception of engine speed data via the CAN BUS is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”. In the case

of tractors with Delphi/Lucas injection pump (Level 1), the transmission control unit (EPC) receives the engine speed from the BCU (via CAN BUS). In the case of tractors with Bosch VP44 injection pump, DE10 injection pump or HPCR fuel system, the transmission control unit (EPC) receives the engine speed from the engine control unit (ECU) via the CAN BUS.

LX25546,0000374 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-54

6020 to 6920S tractors 022204

PN=588

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Stalling the engine causes this diagnostic trouble code. • A blown fuse: – F03/1 on tractors with ECU Level 1 (Delphi/Lucas injection pump). – F04/1 (ignition) and F04/2 (battery) on tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump). • A fault in the BCU’s or ECU’s monitoring circuit (faulty engine speed sender B01 or crankshaft speed sender B72). – BCU or ECU diagnostic trouble codes take priority. • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29-bit CAN BUS connection or power supply to the basic control unit or engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (ECU 002000.13, EPC 306123.09, SFA 324081.09 and/or SIC 334002.09). – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (EPC 306122.09). • Defective 29-bit CAN BUS connection or power supply to the transmission control unit (EPC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit or engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-202, Theory of Operation (Stage II Engines to 97/68/EC; HPCR Level 11 with AutoQuad Transmission) • Reference 245-ECU-204, Theory of Operation (Stage II Engines to 97/68/EC; DE10 Level 12) • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions.

– – –1/1

TM4726 (01NOV03)

211-EPC-55

6020 to 6920S tractors 022204

PN=589

211 EPC 55

EPC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 EPC 56

1.2 BCU or ECU diagnostic trouble codes take priority.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no BCU or ECU diagnostic trouble codes exist: GO TO 1.3.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: • If the tractor is equipped with a Level 1 engine control unit (Delphi/Lucas injection pump), GO TO 3. • If the tractor is equipped with a Level 4 engine control unit (Bosch injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump), GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-56

6020 to 6920S tractors 022204

PN=590

EPC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test. 211 EPC 57

ECU Level 4 with Bosch VP44 injection pump –– plug X361 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin 19 Positive (lead 032) ................................................................................ 12 volts at pin 23 Ground (lead 050) ................................................................................................. at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2 ECU Level 12 (DE10) –– plug X570 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin A2 Positive (lead 032) ................................................................................ 12 volts at pin K1 Positive (lead 992) ................................................................................ 12 volts at pin H1 Ground (lead 050) ............................................................................................... at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................ at pin G1 CAN- (lead 935) .................................................................................................. at pin F1 For circuit diagram, see: • Reference 240-10-055, SE23A Electronic Engine Control (DE10 injection pump) • Reference 240-10-034, SE23B Electronic Engine Control (HPCR fuel system or Bosch VP44 injection pump) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References – – –1/1

TM4726 (01NOV03)

211-EPC-57

6020 to 6920S tractors 022204

PN=591

EPC Diagnostic Trouble Codes 3 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 EPC 58

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

OK: GO TO 4.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

BCU –– plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. CAN- (lead 935) .................................................................................................. 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... Lead 932+ ...........................................................................................................

NOT OK: Recondition as required and carry out an operational test.

at pin 23 at pin 44 at pin 21 at pin 20 at pin 43

BCU –– plug X483/2 (W08)—Specification Power supply:—Ground (lead 050) ....................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H-Basic control unit (BCU) (power supply, acoustic alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-EPC-58

6020 to 6920S tractors 022204

PN=592

EPC Diagnostic Trouble Codes 4 Checking the EPC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

EPC –– plug X489 (W08)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at pin 23 Positive (lead 503) .................................................................................. 12 volts at pin 2 Ground (lead 050) ................................................................................................. at pin 1 Ground (lead 050) ............................................................................................... at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram, see: • Reference 240-10A-053, SE26A - Transmission Control For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

EPC 306061.31 — Transmission Speed Too Low

Diagnostic trouble code EPC 306061.31 is saved if a transmission speed exceeding the tolerance range is registered while the engine is running and the clutch

engaged. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000375 –19–01SEP02–1/1

TM4726 (01NOV03)

211-EPC-59

6020 to 6920S tractors 022204

PN=593

211 EPC 59

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 60

• • • •

Transmission speed sender (B104) defective. Defective enable proportional solenoid valve (Y38), forward solenoid valve (Y33) or reverse solenoid valve (Y36). Enable proportional solenoid valve, forward solenoid or reverse solenoid is stuck in "closed" position. Open lead in power supply circuit (positive lead or ground lead) of the forward solenoid valve or reverse solenoid valve. • Open lead in power supply circuit (positive lead or ground lead) of the enable proportional solenoid valve. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Speed Sender” on 6120 to 6620 tractors, see Section 55, Group 25 in the Repair manual. • “Replacing the Speed Sender” on 6820 and 6920 tractors, see Section 55, Group 20 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-60

6020 to 6920S tractors 022204

PN=594

EPC Diagnostic Trouble Codes 2 Checking the transmission speed sender (B104/1)

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3.

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 4th gear.

211 EPC 61

NOT OK: GO TO 3. • Access address EPC 14. EPC 14 –– Speed, transmission speed sender (B104/1)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 4th gear) ............................................................. 1000 rpm

NOTE: Engine speed matches transmission speed only in 4th gear.

– – –1/1

3 Checking the circuit of the transmission speed sender

Checking the circuit of the transmission speed sender: • Circuit/harness test for transmission speed sender (B104/1) for 6820 and 6920 tractors; see Technical Manual, Section 245, Group EPC. • Circuit/harness test for transmission speed sender (B104/2) for 6120 to 6620 tractors; see Technical Manual, Section 245, Group EPC.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

EPC 306063.14 — Control Unit, Internal Error

Diagnostic trouble code EPC 306063.14 is saved when an electronic malfunction is registered in the control

unit. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000377 –19–01JUL01–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-EPC-61

6020 to 6920S tractors 022204

PN=595

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace transmission control unit (EPC).

211 EPC 62

– – –1/1

EPC 306065.14 — Control Unit, Internal Error

Diagnostic trouble code EPC 306065.14 is saved when the transmission control unit registers an EEPROM

error. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000378 –19–01JUL01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace transmission control unit (EPC).

– – –1/1

TM4726 (01NOV03)

211-EPC-62

6020 to 6920S tractors 022204

PN=596

EPC Diagnostic Trouble Codes

EPC 306069.14 — Control Unit, Internal Error

Diagnostic trouble code EPC 306069.14 is saved when the transmission control unit registers an EEPROM error. The reason for this is either an unprogrammed

or faulty transmission controller. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000593 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Unprogrammed transmission control unit (EPC). • Defective transmission control unit (EPC). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-001, Calibration and Input Addresses for PowrQuad Plus and AutoQuad transmissions.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace transmission control unit (EPC).

– – –1/1

TM4726 (01NOV03)

211-EPC-63

6020 to 6920S tractors 022204

PN=597

211 EPC 63

EPC Diagnostic Trouble Codes

EPC 306070.03 — Upshift/Downshift Switch, Short Circuit

211 EPC 64

Diagnostic trouble code EPC 306070.03 is saved when the transmission control unit registers the output signal (switch activated) for the upshift/downshift switch directly after the ignition is switched ON. This indicates a short to the power supply in the switch circuit. This

diagnostic trouble code does not necessarily mean that one of the switches is responsible for the fault. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000379 –19–01SEP03–1/1

Diagnostics The following are possible causes: • • • •

Operator error: The upshift/downshift switch was pressed when the ignition was switched ON. Defective upshift switch. Defective downshift switch. Circuit fault in upshift/downshift switch: – Short circuit to the supply voltage (battery voltage) in the switch circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Gear Selector Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions” on 6120 to 6620 tractors, Repair Manual, Section 40, Group 25. • “Replacing the Gear Selector Switch on Tractors with PowrQuad Plus and AutoQuad Transmissions” on 6820 and 6920 tractors, Repair Manual, Section 40, Group 25.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: For tractors up to serial no. 398790, GO TO 2. For tractors from serial no. 398791, GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-EPC-64

6020 to 6920S tractors 022204

PN=598

EPC Diagnostic Trouble Codes 2 Checking the circuit of upshift and downshift switches (S48 and S49)

Access address EPC008. EPC008 –– Status, upshift switch (S48) on gear-shift lever—Specification Gear-shift switch (upshift) (S48) on gear-shift lever not pressed:—Status .............................................................. XXXX0XXX Press gear-shift switch (upshift) (S48) on gear-shift lever for more than 2 seconds:—Status ............................................................................................ XXXX1XXX EPC008 –– Status, downshift switch (S49) on gear-shift lever—Specification Gear-shift switch (downshift) (S49) on gear-shift lever not pressed:—Status .............................................................. XXXXX0XX Press gear-shift switch (downshift) (S49) on gear-shift lever for more than 2 seconds:—Status ............................................................................................ XXXXX1XX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for upshift and downshift switches (S48, S49 and S81); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO 3.

– – –1/1

3 Checking the circuit of the rocker switch for upshift/downshift (S81)

Access address EPC008. EPC008 –– Status, rocker switch for upshift (S81)—Specification Gear-shift switch (upshift) on rocker switch (S81) not pressed:—Status .................................................................. XXXX0XXX Press gear-shift switch (upshift) on rocker switch (S81) for more than 2 seconds:—Status ............................................................................................ XXXX1XXX EPC008 –– Status, downshift switch (S81)—Specification Gear-shift switch (downshift) on rocker switch (S81) not pressed:—Status .................................................................. XXXXX0XX Press gear-shift switch (downshift) on rocker switch (S81) for more than 2 seconds:—Status ............................................................................................ XXXXX1XX

OK: Check in Circuit/harness test for upshift and downshift switches (S48, S49 and S81): • Lines in Y-harness (connection to W11). • Upshift switch S48 and/or downshift switch S49. NOT OK: GO TO: Circuit/harness test for upshift and downshift switches (S48, S49 and S81); see Technical Manual, Section 245, Group EPC.

– – –1/1

4 Checking the circuit of the switch for upshift/downshift (S102)

Access address EPC008.

OK: GO TO 5.

EPC008 –– Status, gear-shift switches in shift-lever (S102)—Specification Gear-shift switch (upshift) on shift-lever (S102) not pressed:—Status ........................................................................... XXXX0XXX Press gear-shift switch (upshift) on shift-lever (S102) for more than 2 seconds:—Status ............................................................................................ XXXX1XXX Gear-shift switch (downshift) on shift-lever (S102) not pressed:—Status .......................................................... XXXXX0XX Press gear-shift switch (downshift) on shift-lever (S102) for more than 2 seconds:—Status ............................................................................................ XXXXX1XX

NOT OK: GO TO: Circuit/harness test for upshift and downshift switches (S102 and S125); see Technical Manual, Section 245, Group EPC.

– – –1/1

TM4726 (01NOV03)

211-EPC-65

6020 to 6920S tractors 022204

PN=599

211 EPC 65

EPC Diagnostic Trouble Codes 5 Checking the circuit of the rocker switch for upshift/downshift (S125) 211 EPC 66

Access address EPC008. EPC008 –– Status, rocker switch for upshift/downshift (S125)—Specification Upshift switch on rocker switch (S125) not pressed:—Status ....................................................................................... XXXX0XXX Press upshift switch on rocker switch (S125) for more than 2 seconds:—Status ...................................................... XXXX1XXX Downshift switch on rocker switch (S125) not pressed:—Status ........................................................................... XXXXX0XX Press downshift switch on rocker switch (S125) for more than 2 seconds:—Status ...................................................... XXXXX1XX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for upshift and downshift switches (S102 and S125); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO: Circuit/harness test for upshift and downshift switches (S102 and S125); see Technical Manual, Section 245, Group EPC.

– – –1/1

EPC 306071.03 — Power/ECO Mode Switch or Auto Mode Switch, Shorted Circuit

Tractors up to serial no. 398790: Diagnostic trouble code EPC 306071.03 is saved when the transmission control unit registers the output signal (switch activated) for the Power/ECO Mode switch directly after the ignition is switched ON. This indicates a short to the power supply in the switch circuit. This diagnostic trouble code does not necessarily mean that one of the power/ECO mode switches is responsible for the fault. This diagnostic trouble code triggers the alarm level: “Information”.

Tractors from serial no. 398791: Diagnostic trouble code EPC 306071.03 is saved when the transmission control unit registers the output signal (switch activated) for the Auto Mode switch directly after the ignition is switched ON. This indicates a short to the power supply in the switch circuit. This diagnostic trouble code does not necessarily mean that the Auto Mode switch is responsible for the fault. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000037A –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-66

6020 to 6920S tractors 022204

PN=600

EPC Diagnostic Trouble Codes Diagnostics Tractors up to serial no. 398790: The following are possible causes:

211 EPC 67

• Operator error: The Power/ECO Mode switch was pressed when the ignition was switched ON (S85). • Defective Power/ECO Mode switch (S85). • Circuit fault in Power/ECO Mode switch: – Short circuit to the supply voltage (battery voltage) in the switch circuit. Tractors from serial no. 398791: The following are possible causes: • Operator error: Auto Mode switch (S102) on the gear-shift lever was pressed when the ignition was turned ON. • Defective Auto Mode switch (S102) on the gear-shift lever. • Circuit fault in Auto Mode switch: – Short circuit to the supply voltage (battery voltage) in the switch circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Replacing the Switch for AutoQuad Transmission” on 6120 to 6620 tractors (Repair Manual, Section 40, Group 25). • “Replacing the Switch for AutoQuad Transmission” on 6820 and 6920 tractors (Repair Manual, Section 40, Group 25).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: • Tractors with Power/Eco-Mode switch (S85), GO TO 2. • Tractors with Auto Mode switch (S102) on gear-shift lever, GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-EPC-67

6020 to 6920S tractors 022204

PN=601

EPC Diagnostic Trouble Codes 2 Checking the Power Mode circuit in address EPC008

211 EPC 68

Access address EPC008.

OK: GO TO 3.

EPC008 –– Status, Power Mode Switch (S85)—Specification Power mode switch not pressed:— Status .............................................................................................................. 0XXXXXXX Press Power Mode switch for longer than 2 seconds:—Status ................................................................................. 1XXXXXXX

NOT OK: GO TO: Circuit/harness test for Power/Eco Mode switch (S85); see Technical Manual, Section 245, Group EPC.

– – –1/1

3 Checking the Eco Mode circuit in address EPC008

Access address EPC008. EPC008 –– Status, Eco Mode Switch (S85)—Specification Eco mode switch not pressed:—Status .......................................................... X0XXXXXX Press Eco mode switch for more than 2 seconds:—Status ............................................................................................ X1XXXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for Power/Eco Mode switch (S85); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO: Circuit/harness test for Power/Eco Mode switch (S85); see Technical Manual, Section 245, Group EPC.

– – –1/1

4 Checking the Auto Mode switch circuit at address EPC008

Access address EPC008. EPC008 –– Status, Auto Mode Switch (S102)—Specification Auto mode switch not pressed:—Status ......................................................... 0XXXXXXX Press Auto Mode switch for longer than 2 seconds:—Status ......................................................................................... 1XXXXXXX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for Auto Mode switch (S102), see 245-EPC. NOT OK: GO TO: Circuit/harness test for Auto Mode switch (S102), see 245-EPC.

– – –1/1

TM4726 (01NOV03)

211-EPC-68

6020 to 6920S tractors 022204

PN=602

EPC Diagnostic Trouble Codes

EPC 306080.31 — Auto-Mode Potentiometer, Circuit Fault

Diagnostic trouble code EPC 306080.31 is saved if the transmission control unit measures a voltage of less than 0.3 or more than 4.7 volts at the signal input of

the potentiometer. This indicates that the circuit is open or shorted. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,00005F2 –19–01SEP03–1/1

Diagnostics The following are possible causes: • Positive lead (cable 243) of the 5-volt power supply defective. – Open circuit. – Short to ground. – Shorted to a 12-volt lead (battery voltage). • Ground lead (cable 241) of the 5-volt supply voltage defective. – Open circuit. • Defective signal lead (cable 593) of potentiometer (B144). – Open circuit. – Short to ground. – Shorted to a 5-volt lead or to a 12-volt lead (battery voltage). • Defective Auto-Mode potentiometer (B144). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-69

6020 to 6920S tractors 022204

PN=603

211 EPC 69

EPC Diagnostic Trouble Codes 2 Checking Auto-Mode potentiometer (B144)

NOTE: Slowly turn the potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: GO TO 5. NOT OK: GO TO 3.

Access address EPC015: 211 EPC 70

EPC015 –– Voltage, Auto-Mode potentiometer (B144)—Specification Potentiometer in ECO position:— Minimum voltage .......................................................................... 0.3 volts (display: 0.30) Potentiometer in Power position:— Maximum voltage ......................................................................... 4.7 volts (display: 4.70)

– – –1/1

3 Initial component test

Perform a visual inspection of Auto-Mode potentiometer (B144) and of the connector associated with it:

OK: If there are no signs of damage: GO TO 4. NOT OK: Recondition sub-assemblies, connectors or contacts as required and do an Operational Check for Auto-Mode Potentiometer (B144), see 245-EPC.

LX1025950 –UN–13OCT03

B144—Auto-Mode potentiometer ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

– – –1/1

4 Checking the circuit

Circuit/harness test for Auto-Mode potentiometer (B144), see 245-EPC.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Auto-Mode Potentiometer (B144), see 245-EPC.

– – –1/1

TM4726 (01NOV03)

211-EPC-70

6020 to 6920S tractors 022204

PN=604

EPC Diagnostic Trouble Codes 5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections at the reverse drive lever, see summary of wiring layout in the circuit/harness test for the reverse drive lever. Circuit/harness test for Auto-Mode potentiometer (B144) • For back-up, see also additional references for circuit checks: – Reference 245-EPC-100, Test Procedure in the Case of Occasional EPC Circuit Problems (EPC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for 211 Auto-Mode Potentiometer EPC (B144), see 245-EPC. 71

– – –1/1

EPC 306102.31 — Power/ECO Mode Indicator Light, Circuit Fault

EPC 306102.31 is saved if there is an open lead or a short in the circuit while the Power Mode indicator light

or ECO mode indicator light is active. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000037B –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective Power Mode control light (H68). • Fault in Power Mode control light circuit: – Open lead in control light circuit. – Short circuit in control light circuit. • Defective ECO Mode indicator light (H75). • Fault in ECO Mode control light circuit: – Open lead in control light circuit. – Short circuit in control light circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Removing Control Unit” from 6120 to 6620 tractors, Section 90, Group 05 in the Repair Manual. • “Removing Control Unit” from 6820 and 6920 tractors, Section 90, Group 05 in the Repair Manual.

– – –1/1

TM4726 (01NOV03)

211-EPC-71

6020 to 6920S tractors 022204

PN=605

EPC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 EPC 72

– – –1/1

2 Checking the circuit of the Power Mode indicator light (H68)

Status, Power Mode Control Light (H68)—Specification Power mode switch not pressed:— Status ......................................................................................................... Light is not on Press Power mode switch:—Status ................................................................. Light is on

OK: GO TO 3. NOT OK: GO TO: Circuit/harness test for Power/Eco Mode indicator lights (H68 and H75); see Technical Manual, Section 245, Group EPC.

– – –1/1

3 Checking the circuit of the Eco Mode indicator light (H75)

Status, Eco mode indicator light (H75)—Specification Eco mode switch not pressed:—Status ..................................................... Light is not on Press Eco mode switch:—Status ..................................................................... Light is on

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for Power/Eco Mode indicator lights (H68 and H75); see Technical Manual, Section 245, Group EPC. NOT OK: GO TO: Circuit/harness test for Power/Eco Mode indicator lights (H68 and H75); see Technical Manual, Section 245, Group EPC.

– – –1/1

TM4726 (01NOV03)

211-EPC-72

6020 to 6920S tractors 022204

PN=606

EPC Diagnostic Trouble Codes

EPC 306111.31 — K1 Solenoid Valve, Circuit Fault

Diagnostic trouble code EPC 306111.31 is saved when an open lead or a short in the circuit is registered while

the K1 solenoid valve is active. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000037E –19–01SEP03–1/1

Diagnostics The following are possible causes: • Defective K1 solenoid valve. • Defective/bad ground connection (XGND46). • Fault in K1 solenoid valve circuit: – Open lead in solenoid circuit. – Short circuit in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Shift Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Shift Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

TM4726 (01NOV03)

211-EPC-73

6020 to 6920S tractors 022204

PN=607

211 EPC 73

EPC Diagnostic Trouble Codes 2 Checking the K1 solenoid valve

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for K1 solenoid valve (Y40); see Section 245, Group EPC in the Technical Manual.

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 1st gear.

211 EPC 74

• Access address EPC014. EPC014 –– Speed, transmission speed sender (B104)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 1st gear) .................................................. approx. 566 rpm

NOT OK: GO TO: Circuit/harness test for K1 solenoid valve (Y40); see Section 245, Group EPC in the Technical Manual.

NOTE: The K1 solenoid valve is supplied with power by the transmission control unit (EPC) in 1st gear only. In 1st gear, the ratio of engine speed to transmission speed is 1:1.767. Gear shift (voltage supply to solenoid valves) Gear

K1

First gear

active

K2

K3

active

Second gear

active

Third gear Fourth gear

active

Engine speed to transmission speed ratio (forward travel) Gear Ratio First gear 1.767 Second gear 1.466 Third gear 1.225 Fourth gear 1.0

– – –1/1

EPC 306112.31 — K2 and/or K3 Solenoid Valve or Solenoid 1 and/or Solenoid 2, Circuit Fault

Tractors up to serial no. 398790: Diagnostic trouble code EPC 306112.31 is saved when an open lead or a short in the circuit is registered while the K2 and/or K3 solenoid valve is active. Tractors from serial no. 398791: Diagnostic trouble

code EPC 306112.31 is saved when an open lead or a short in the circuit is registered while solenoid valve 1 and/or 2 is active. Alarm level: Information

LX25546,000037F –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-74

6020 to 6920S tractors 022204

PN=608

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • • • •

Defective K2 and/or K3 solenoid valve (up to serial no. 398790). Defective solenoid valve 1 and/or 2 (from serial no. 398791). Defective/bad ground connection (XGND46). Fault in circuit of K2 or K3 solenoid valve: – Open lead in solenoid circuit. – Short circuit in solenoid circuit. • Fault in circuit of solenoid valve 1 or 2: – Open lead in solenoid circuit. – Short circuit in solenoid circuit. Additional references:

211 EPC 75

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions. • “Removing and Installing the Shift Valve Housing” on 6120 to 6620 tractors in Section 55, Group 10 in the Repair manual. • “Removing and Installing the Shift Valve Housing” on 6820 and 6920 tractors in Section 55, Group 10 in the Repair manual.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: • For tractors up to serial no. 398790, GO TO 2. • For tractors from serial no. 398791, GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-EPC-75

6020 to 6920S tractors 022204

PN=609

EPC Diagnostic Trouble Codes 2 Checking the K2 solenoid valve

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 2nd gear.

211 EPC 76

OK: • GO TO 3. • Type of error indicates a loose contact, GO TO: Circuit/harness test for K2 solenoid valve (Y39); see Section 245, Group EPC in the Technical Manual.

• Access address EPC014. EPC014 –– Speed, transmission speed sender (B104)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 2nd gear) ................................................. approx. 682 rpm

NOT OK: GO TO: Circuit/harness test for K2 solenoid valve (Y39); see Section 245, Group EPC in the Technical Manual.

NOTE: The K2 solenoid valve is supplied with power by the transmission control unit (EPC) in 1st and 2nd gears. Together with the K1 solenoid valve, the K2 solenoid valve is responsible for shifting to 1st gear. In 2nd gear, the ratio of engine speed to transmission speed is 1:1.466. Gear shift (voltage supply to solenoid valves) Gear

K1

K2

First gear

active

active

Second gear

K3

active

Third gear Fourth gear

active

Engine speed to transmission speed ratio (forward travel) Gear Ratio First gear 1.767 Second gear 1.466 Third gear 1.225 Fourth gear 1.0

– – –1/1

TM4726 (01NOV03)

211-EPC-76

6020 to 6920S tractors 022204

PN=610

EPC Diagnostic Trouble Codes 3 Checking the K3 solenoid valve

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 4th gear. • Access address EPC014. EPC014 –– Speed, transmission speed sender (B104)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 4th gear) ............................................................. 1000 rpm

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for K3 solenoid valve (Y32); see 211 Section 245, Group EPC EPC in the Technical Manual. 77 NOT OK: GO TO: Circuit/harness test for K3 solenoid valve (Y32); see Section 245, Group EPC in the Technical Manual.

NOTE: The K3 solenoid valve is supplied with power by the transmission control unit (EPC) in 4th gear only. In 4th gear, the ratio of engine speed to transmission speed is 1:1. In other words, the engine speed on the display matches the transmission speed shown in address EPC014 exactly. Gear shift (voltage supply to solenoid valves) Gear

K1

K2

First gear

active

active

Second gear

K3

active

Third gear Fourth gear

active

Engine speed to transmission speed ratio (forward travel) Gear Ratio First gear 1.767 Second gear 1.466 Third gear 1.225 Fourth gear 1.0

– – –1/1

TM4726 (01NOV03)

211-EPC-77

6020 to 6920S tractors 022204

PN=611

EPC Diagnostic Trouble Codes 4 Checking solenoid valve 1

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 4th gear.

211 EPC 78

• Access address EPC014. EPC014 –– Speed, transmission speed sender (B104)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 4th gear) ................................................ approx. 1000 rpm

OK: • GO TO 5. • Type of error indicates a loose contact, GO TO: Circuit/harness test for solenoid valve 1 (Y62), in 245-EPC. NOT OK: GO TO: Circuit/harness test for solenoid valve 1 (Y62), in 245-EPC.

NOTE: Solenoid valve 1 is supplied with power by the transmission control unit (EPC) in 1st and 4th gears only. Together with solenoid valve 2, solenoid valve 1 is responsible for shifting to 1st gear. In 1st gear, the ratio of engine speed to transmission speed is 1:1.767. In 4th gear, the ratio of engine speed to transmission speed is 1:1. Gear shift (voltage supply to solenoid valves) Gear

Solenoid valve 1

First gear

active

Second gear

Solenoid valve 2 active active

Third gear Fourth gear

active

Engine speed to transmission speed ratio (forward travel) Gear Ratio First gear 1.767 Second gear 1.466 Third gear 1.225 Fourth gear 1.0

– – –1/1

TM4726 (01NOV03)

211-EPC-78

6020 to 6920S tractors 022204

PN=612

EPC Diagnostic Trouble Codes 5 Checking solenoid valve 2

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Use the hand throttle to set engine speed to 1000 rpm. • Select 2nd gear. • Access address EPC014. EPC014 –– Speed, transmission speed sender (B104)—Specification Move the reverse drive lever to forward (clutch pedal not pressed):—Speed (with engine speed at 1000 rpm in 2nd gear) ................................................. approx. 682 rpm

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for solenoid valve 2 (Y63), in 211 245-EPC. EPC 79 NOT OK: GO TO: Circuit/harness test for solenoid valve 2 (Y63), in 245-EPC.

NOTE: Solenoid valve 2 is supplied with power by the transmission control unit (EPC) in 1st and 2nd gears only. Together with solenoid valve 2, solenoid valve 1 is responsible for shifting to 1st gear. In 1st gear, the ratio of engine speed to transmission speed is 1:1.767. In 2nd gear, the ratio of engine speed to transmission speed is 1:1.466. Gear shift (voltage supply to solenoid valves) Gear

Solenoid valve 1

First gear

active

Solenoid valve 2 active

Second gear

active

Third gear Fourth gear

active

Engine speed to transmission speed ratio (forward travel) Gear Ratio First gear 1.767 Second gear 1.466 Third gear 1.225 Fourth gear 1.0

– – –1/1

EPC 306120.09 — Basic Control Unit has Stopped Transmitting Data (Transmission Output Speed)

Diagnostic trouble code EPC 306120.09 is saved when no transmission output speed signal (ground speed) is registered via the CAN BUS for more than 2 seconds. This indicates a problem in transmitting data between

the basic control unit (BCU) and the EPC. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000381 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-79

6020 to 6920S tractors 022204

PN=613

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 80

• Fuse F03/01 is blown. • A fault in the BCU’s monitoring circuit (faulty travel speed sender B09/B35). – BCU diagnostic trouble codes take priority. • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29-bit CAN BUS connection or power supply to the basic control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (ECU 002000.13, EPC 306123.09, SFA 324081.09 and/or SIC 334002.09). • Defective 29-bit CAN BUS connection or power supply to the transmission control unit (EPC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions.

– – –1/1

TM4726 (01NOV03)

211-EPC-80

6020 to 6920S tractors 022204

PN=614

EPC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 BCU diagnostic trouble codes take priority.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and 211 no BCU diagnostic EPC trouble codes exist: GO 81 TO 1.3

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-81

6020 to 6920S tractors 022204

PN=615

EPC Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 EPC 82

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

OK: GO TO 3.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

BCU –– plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. CAN- (lead 935) .................................................................................................. 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... Lead 932+ ...........................................................................................................

NOT OK: Recondition as required and carry out an operational test.

at pin 23 at pin 44 at pin 21 at pin 20 at pin 43

BCU –– plug X483/2 (W08)—Specification Power supply:—Ground (lead 050) ....................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H-Basic control unit (BCU) (power supply, acoustic alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-82

6020 to 6920S tractors 022204

PN=616

EPC Diagnostic Trouble Codes 3 Checking the EPC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

EPC –– plug X489 (W08)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at pin 23 Positive (lead 503) .................................................................................. 12 volts at pin 2 Ground (lead 050) ................................................................................................. at pin 1 Ground (lead 050) ............................................................................................... at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram, see: • Reference 240-10A-053, SE26A - Transmission Control For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-83

6020 to 6920S tractors 022204

PN=617

211 EPC 83

EPC Diagnostic Trouble Codes

EPC 306121.09 — Engine Control Unit or Basic Control Unit has Stopped Transmitting Data (Engine Speed)

211 EPC 84

Diagnostic trouble code EPC 306121.09 is saved when no engine speed is registered via the CAN BUS for more than 2 seconds. This indicates a problem in transmitting data between the engine control unit (ECU) or basic control unit (BCU) and the EPC. This diagnostic trouble code triggers the alarm level: “Information”. In the case of tractors with Delphi/Lucas

injection pump, the transmission control unit (EPC) receives the engine speed from the BCU (via CAN BUS). In the case of tractors with Level 4 (BOSCH VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump), the transmission control unit (EPC) receives the engine speed from the engine control unit (ECU) via the CAN BUS.

LX25546,0000382 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-84

6020 to 6920S tractors 022204

PN=618

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A blown fuse: – F03/1 on tractors with ECU Level 1 (Delphi/Lucas injection pump). – F04/1 (ignition) and F04/2 (battery) on tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (DE10 injection pump) or Level 12 (HPCR fuel system). • A fault in the BCU’s or ECU’s monitoring circuit (faulty engine speed sender B01 or crankshaft speed sender B72). – BCU or ECU diagnostic trouble codes take priority. • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29-bit CAN BUS connection or power supply to the basic control unit or engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (ECU 002000.13, EPC 306123.09, SFA 324081.09 and/or SIC 334002.09). – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (EPC 306122.09). • Defective 29-bit CAN BUS connection or power supply to the transmission control unit (EPC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit or engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-202, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoQuad Transmission) • Reference 245-ECU-204, Theory of Operation (Stage II Engines to 97/68/EC; Level 12). • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions.

– – –1/1

TM4726 (01NOV03)

211-EPC-85

6020 to 6920S tractors 022204

PN=619

211 EPC 85

EPC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 EPC 86

1.2 BCU or ECU diagnostic trouble codes take priority.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no BCU or ECU diagnostic trouble codes exist: GO TO 1.3.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: • If the tractor is equipped with a Level 1 engine control unit (Delphi/Lucas injection pump), GO TO 3. • If the tractor is equipped with a Level 4 engine control unit (BOSCH injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump), GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-86

6020 to 6920S tractors 022204

PN=620

EPC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test. 211 EPC 87

ECU Level 4 with Bosch VP44 injection pump –– plug X361 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin 19 Positive (lead 032) ................................................................................ 12 volts at pin 23 Ground (lead 050) ................................................................................................. at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2 ECU Level 12 (DE10) –– plug X570 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin A2 Positive (lead 032) ................................................................................ 12 volts at pin K1 Positive (lead 992) ................................................................................ 12 volts at pin H1 Ground (lead 050) ............................................................................................... at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................ at pin G1 CAN- (lead 935) .................................................................................................. at pin F1 For circuit diagram, see: • Reference 240-10-055, SE23A Electronic Engine Control (Delphi/Lucas Injection Pump or DE10 Injection Pump) • Reference 240-10-034, SE23B Electronic Engine Control (Bosch VP44 injection pump or HPCR fuel system) For component location and pin arrangement, refer to: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-87

6020 to 6920S tractors 022204

PN=621

EPC Diagnostic Trouble Codes 3 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 EPC 88

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

OK: GO TO 4.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

BCU –– plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. CAN- (lead 935) .................................................................................................. 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... Lead 932+ ...........................................................................................................

NOT OK: Recondition as required and carry out an operational test.

at pin 23 at pin 44 at pin 21 at pin 20 at pin 43

BCU –– plug X483/2 (W08)—Specification Power supply:—Ground (lead 050) ....................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H-Basic control unit (BCU) (power supply, acoustic alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-EPC-88

6020 to 6920S tractors 022204

PN=622

EPC Diagnostic Trouble Codes 4 Checking the EPC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

EPC –– plug X489 (W08)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at pin 23 Positive (lead 503) .................................................................................. 12 volts at pin 2 Ground (lead 050) ................................................................................................. at pin 1 Ground (lead 050) ............................................................................................... at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram, see: • Reference 240-10A-053, SE26A - Transmission Control For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

EPC 306122.09 — Engine Control Unit has Stopped Transmitting Data (Hand Throttle/Accelerator Pedal)

Diagnostic trouble code EPC 306122.09 is saved when no information regarding the hand throttle/accelerator pedal is registered via the CAN BUS for more than 2 seconds. This indicates a problem in transmitting data

between the engine control unit (ECU) and the EPC. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000383 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-89

6020 to 6920S tractors 022204

PN=623

211 EPC 89

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 EPC 90

• A blown fuse: – F03/1 on tractors with ECU Level 1 (Delphi/Lucas injection pump). – F04/1 (ignition) and F04/2 (battery) on tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (DE10 injection pump) or Level 12 (HPCR fuel system). • This diagnostic trouble code appears on all tractors that do not have an engine control unit (tractors with PowrQuad Plus transmission). Deal with this diagnostic trouble code only if the tractor is equipped an engine control unit (ECU). • A fault in the ECU’s monitoring circuit (faulty potentiometers for hand throttle/accelerator pedal). – ECU diagnostic trouble codes take priority. • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29-bit CAN BUS connection or power supply to the engine control unit (ECU) causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (SFA 324080.09, SFA 324082.09 and/or SFA 334001.09). • Defective 29-bit CAN BUS connection or power supply to the transmission control unit (EPC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-ECU-200, Theory of Operation, Engine Control Unit (ECU Level 1 with Delphi/Lucas Injection Pump). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-202, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoQuad Transmission) • Reference 245-ECU-204, Theory of Operation (Stage II Engines to 97/68/EC; Level 12). • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions.

– – –1/1

TM4726 (01NOV03)

211-EPC-90

6020 to 6920S tractors 022204

PN=624

EPC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 ECU diagnostic trouble codes take priority.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and 211 no ECU diagnostic EPC trouble codes exist: GO 91 TO 1.3

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: • If the tractor is equipped with a Level 1 or Level 12 engine control unit (Delphi/Lucas injection pump or DE10 injection pump), GO TO 2. • If the tractor is equipped with a Level 4 or Level 11 engine control unit (BOSCH injection pump or HPCR fuel system), GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-EPC-91

6020 to 6920S tractors 022204

PN=625

EPC Diagnostic Trouble Codes 2 Checking the ECU plug (Delphi/Lucas injection pump or DE10 injection pump) 211 EPC 92

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

ECU Level 1 –– plug X218 (W15)—Specification Power supply:—Positive (lead 622) ........................................................ 12 volts at pin 1 Ground (lead 050) ............................................................................................... at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 30 CAN- (lead 935) .................................................................................................. at pin 29 ECU Level 12 (DE10) –– plug X570 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin A2 Positive (lead 032) ................................................................................ 12 volts at pin K1 Positive (lead 992) ................................................................................ 12 volts at pin H1 Ground (lead 050) ............................................................................................... at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................ at pin G1 CAN- (lead 935) .................................................................................................. at pin F1 For circuit diagram, see: • Reference 240-10-055, SE23A Electronic Engine Control (Delphi/Lucas Injection Pump or DE10 Injection Pump) For component location and pin arrangement, refer to: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. – – –1/1

TM4726 (01NOV03)

211-EPC-92

6020 to 6920S tractors 022204

PN=626

EPC Diagnostic Trouble Codes 3 Checking the ECU plug (BOSCH VP44 injection pump or HPCR fuel system)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test. 211 EPC 93

ECU Level 4 with Bosch VP44 injection pump –– plug X361 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin 19 Positive (lead 032) ................................................................................ 12 volts at pin 23 Ground (lead 050) ................................................................................................. at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2 For circuit diagram, see: • Reference 240-10-034, SE23B Electronic Engine Control (Bosch VP44 injection pump or HPCR fuel system) For component location and pin arrangement, refer to: • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-93

6020 to 6920S tractors 022204

PN=627

EPC Diagnostic Trouble Codes 4 Checking the EPC plug (29-bit CAN BUS connection and power supply) 211 EPC 94

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

EPC –– plug X489 (W08)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at pin 23 Positive (lead 503) .................................................................................. 12 volts at pin 2 Ground (lead 050) ................................................................................................. at pin 1 Ground (lead 050) ............................................................................................... at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram, see: • Reference 240-10A-053, SE26A - Transmission Control For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-94

6020 to 6920S tractors 022204

PN=628

EPC Diagnostic Trouble Codes

EPC 306123.09 — Basic Control Unit has Stopped Transmitting Data (Engine Operating Hours) 211 EPC 95

Diagnostic trouble code EPC 306123.09 is saved when no information on engine operating hours is registered via the CAN BUS for more than 2 seconds. This indicates a problem in transmitting data between the basic control unit (BCU) and the EPC. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000057A –19–01SEP03–1/1

Diagnostics The following are possible causes: • Fuse F03/01 is blown. • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29-bit CAN BUS connection or power supply to the basic control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (ECU 002000.13, EPC 306121.09, SFA 324081.09 and/or SIC 334002.09). • Defective 29-bit CAN BUS connection or power supply to the transmission control unit (EPC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 245-EPC-200, Theory of Operation, PowrQuad Plus and AutoQuad Transmissions.

– – –1/1

TM4726 (01NOV03)

211-EPC-95

6020 to 6920S tractors 022204

PN=629

EPC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 EPC 96 1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2. – – –1/1

TM4726 (01NOV03)

211-EPC-96

6020 to 6920S tractors 022204

PN=630

EPC Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

OK: GO TO 3.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

BCU –– plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. CAN- (lead 935) .................................................................................................. 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... Lead 932+ ...........................................................................................................

NOT OK: Recondition as required and carry out an operational test. 211 EPC 97

at pin 23 at pin 44 at pin 21 at pin 20 at pin 43

BCU –– plug X483/2 (W08)—Specification Power supply:—Ground (lead 050) ....................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H-Basic control unit (BCU) (power supply, acoustic alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-97

6020 to 6920S tractors 022204

PN=631

EPC Diagnostic Trouble Codes 3 Checking the EPC plug (29-bit CAN BUS connection and power supply) 211 EPC 98

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

EPC –– plug X489 (W08)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at pin 23 Positive (lead 503) .................................................................................. 12 volts at pin 2 Ground (lead 050) ................................................................................................. at pin 1 Ground (lead 050) ............................................................................................... at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram, see: • Reference 240-10A-053, SE26A - Transmission Control For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

EPC 306240.31 — Control Unit Connected to Wrong Harness Connector

Diagnostic trouble code EPC 306240.31 is saved when the transmission control unit detects an erroneous signal in the circuit of the control unit identification.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,0000384 –19–01SEP03–1/1

TM4726 (01NOV03)

211-EPC-98

6020 to 6920S tractors 022204

PN=632

EPC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Wrong control unit connected to the following EPC connectors: – EPC plug X489 (on tractors up to serial no. 398790). – EPC plug X657 (on tractors from serial no. 398791). • Open circuit at lead 504. • Defective transmission control unit (EPC).

211 EPC 99

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-EPC-99

6020 to 6920S tractors 022204

PN=633

EPC Diagnostic Trouble Codes 2 Checking the circuit

2.1 - Check the controller:

NOTE: On tractors up to serial no. 398790, the EPC plug is X489. On tractors from serial no. 398791, the EPC plug is X657. Check the controller connected to EPC connector X489 or X657 (is the correct controller connected?).

211 EPC ,100

2.2 - Check the connecting lead:

OK: If the correct controller is connected, GO TO 2.2. NOT OK: Connect the correct controller to connector X489 or X657 and test its functionality.

• Ignition OFF.

OK: Replace the controller and carry out an operational test.

EPC –– plug X489 or X657 (W08)—Specification Check the controller’s identification circuit:—Continuity ..................................................... between pins 37 and 46 (lead 504)

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10A-053, SE26A - Transmission Control For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References. • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 398791 — Summary of References

– – –1/1

TM4726 (01NOV03)

211-EPC-100

6020 to 6920S tractors 022204

PN=634

Group JDL

JDL Diagnostic Trouble Codes JDL 298887.31 — Control Unit Configuration and Machine PIN Conflict

211 JDL 1

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000109 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-1

6020 to 6920S tractors 022204

PN=635

JDL Diagnostic Trouble Codes

JDL 298886.31 — Control Unit Power Limit Exceeded

211 JDL 2

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000010A –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-2

6020 to 6920S tractors 022204

PN=636

JDL Diagnostic Trouble Codes

JDL 298885.31 — Control Unit Memory Capacity Exceeded

211 JDL 3

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000010B –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-3

6020 to 6920S tractors 022204

PN=637

JDL Diagnostic Trouble Codes

JDL 298883.31 — CAN Bus Fault

211 JDL 4

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000010E –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-4

6020 to 6920S tractors 022204

PN=638

JDL Diagnostic Trouble Codes

JDL 001542.04 — Control Unit Voltage Low

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 5

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000010F –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-5

6020 to 6920S tractors 022204

PN=639

JDL Diagnostic Trouble Codes

JDL 000629.12 — Control Unit Fault

211 JDL 6

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000110 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-6

6020 to 6920S tractors 022204

PN=640

JDL Diagnostic Trouble Codes

JDL 000964.13 — Invalid Time / Date

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 7

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000111 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-7

6020 to 6920S tractors 022204

PN=641

JDL Diagnostic Trouble Codes

JDL 298876.31 — Machine Data Configuration Fault 1

211 JDL 8

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000112 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-8

6020 to 6920S tractors 022204

PN=642

JDL Diagnostic Trouble Codes

JDL 298875.31 — Machine Data Configuration Fault 2

211 JDL 9

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000113 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-9

6020 to 6920S tractors 022204

PN=643

JDL Diagnostic Trouble Codes

JDL 298874.31 — Machine Data Configuration Fault 3

211 JDL 10

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000114 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-10

6020 to 6920S tractors 022204

PN=644

JDL Diagnostic Trouble Codes

JDL 298873.31 — Machine Data Configuration Fault 4

211 JDL 11

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000115 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-11

6020 to 6920S tractors 022204

PN=645

JDL Diagnostic Trouble Codes

JDL 298872.31 — Machine Data Configuration Fault 5

211 JDL 12

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000116 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-12

6020 to 6920S tractors 022204

PN=646

JDL Diagnostic Trouble Codes

JDL 298882.31 — GPS Lock Fault

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 13

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000117 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-13

6020 to 6920S tractors 022204

PN=647

JDL Diagnostic Trouble Codes

JDL 298881.18 — GPS Lock Lost

211 JDL 14

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000118 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-14

6020 to 6920S tractors 022204

PN=648

JDL Diagnostic Trouble Codes

JDL 299620.31 — GPS Antenna / Cable Fault

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 15

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000119 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-15

6020 to 6920S tractors 022204

PN=649

JDL Diagnostic Trouble Codes

JDL 298880.31 — Call Unanswered

211 JDL 16

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000011A –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-16

6020 to 6920S tractors 022204

PN=650

JDL Diagnostic Trouble Codes

JDL 299616.31 — Call Disconnected

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 17

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000011B –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-17

6020 to 6920S tractors 022204

PN=651

JDL Diagnostic Trouble Codes

JDL 298879.31 — Cellular Signal Weak or No Service

211 JDL 18

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000011C –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-18

6020 to 6920S tractors 022204

PN=652

JDL Diagnostic Trouble Codes

JDL 299615.31 — Cellular Data Bit Error Rate too High

211 JDL 19

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000011D –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-19

6020 to 6920S tractors 022204

PN=653

JDL Diagnostic Trouble Codes

JDL 299619.31 — Cellular Personal Identification Number Blocked

211 JDL 20

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000011E –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-20

6020 to 6920S tractors 022204

PN=654

JDL Diagnostic Trouble Codes

JDL 299618.31 — Communications Service Identification Module Fault

211 JDL 21

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,000011F –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-21

6020 to 6920S tractors 022204

PN=655

JDL Diagnostic Trouble Codes

JDL 298878.31 — Line Busy

211 JDL 22

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000120 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-22

6020 to 6920S tractors 022204

PN=656

JDL Diagnostic Trouble Codes

JDL 299617.31 — Data Exchange Fault

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 23

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000121 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-23

6020 to 6920S tractors 022204

PN=657

JDL Diagnostic Trouble Codes

JDL 298877.31 — Modem Fault

211 JDL 24

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000122 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-24

6020 to 6920S tractors 022204

PN=658

JDL Diagnostic Trouble Codes

JDL 299614.31 — Data Upload Fault

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check

211 JDL 25

Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000123 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-25

6020 to 6920S tractors 022204

PN=659

JDL Diagnostic Trouble Codes

JDL 299613.31 — Data Download Fault

211 JDL 26

Use the following diagnostic procedure for this JDL diagnostic trouble code: JDLink System Check Additional References: Operation: Reference 245-JDL-200 , JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram see: Reference 240-10-038, SE30-JDLink Control Unit For component location and pin arrangement see: Reference 240-26-411, W41 — JDLink Wiring Harness.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

LX26156,0000124 –19–02OCT02–1/1

TM4726 (01NOV03)

211-JDL-26

6020 to 6920S tractors 022204

PN=660

Group PLC

PLC Diagnostic Trouble Codes PLC 000629.12 — Controller, Internal Error

Diagnostic trouble code PLC 000629.12 is saved when the park lock controller (PLC) recognizes a software

problem. The diagnostic trouble code triggers the alarm level: “Information”.

211 PLC 1

LX25546,0000402 –19–01APR02–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): • No other PLC diagnostic trouble codes are saved: Replace the controller (PLC). • Other PLC diagnostic trouble codes ARE saved: PLC diagnostic trouble codes must be processed first.

– – –1/1

PLC 000639.12 — Controller, Internal Error

Diagnostic trouble code PLC 000639.12 is saved when the park lock controller (PLC) recognizes a software

problem. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000403 –19–01APR02–1/1

TM4726 (01NOV03)

211-PLC-1

6020 to 6920S tractors 022204

PN=661

PLC Diagnostic Trouble Codes Diagnostics

211 PLC 2

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and park lock is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): • No other PLC diagnostic trouble codes are saved: Replace the controller (PLC). • Other PLC diagnostic trouble codes ARE saved: PLC diagnostic trouble codes must be processed first. – – –1/1

PLC 000639.13 — 29-bit CAN BUS, High Error Rate

Diagnostic trouble code PLC 000639.13 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the park lock is not

operating properly. Diagnostic trouble code PLC 000639.13 is saved when the park lock controller (PLC) recognizes a high error rate in the incoming CAN BUS messages. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000404 –19–01AUG01–1/1

TM4726 (01NOV03)

211-PLC-2

6020 to 6920S tractors 022204

PN=662

PLC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Screen lines +930 and/or -932 defective. – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences.

211 PLC 3

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and park lock is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active and park lock is NOT operating properly: Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

PLC 000639.19 — 29-bit CAN BUS, Very High Error Rate

Diagnostic trouble code PLC 000639.19 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the park lock is not

operating properly. Diagnostic trouble code PLC 000639.19 is saved when the park lock controller (PLC) recognizes a very high error rate in the incoming CAN BUS messages. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000405 –19–01AUG01–1/1

TM4726 (01NOV03)

211-PLC-3

6020 to 6920S tractors 022204

PN=663

PLC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 PLC 4

• A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Screen lines +930 and/or -932 defective. – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and park lock is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active and park lock is NOT operating properly: Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

PLC 328010.31 — Transmission Output Speed Sender, Grounded Circuit

Diagnostic trouble code PLC 328010.31 is stored if a shorted circuit to ground occurs in the circuit of the transmission output speed sender. The diagnostic trouble code does not necessarily mean that the

transmission output speed sender is responsible for the fault. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,0000406 –19–01SEP02–1/1

TM4726 (01NOV03)

211-PLC-4

6020 to 6920S tractors 022204

PN=664

PLC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: • Defective sender (B84; transmission output speed) (internal short circuit). • A short to ground in the signal lead (cable 699) between the sender for transmission output speed B84 and the park lock controller (PLC).

211 PLC 5

Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Sending Unit (B09, B35 or B84) ” on 6320 to 6620 tractors (Repair Manual, Section 56, Group 15). • “Replacing the Transmission Output Speed Sending Unit (B84)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-PLC-5

6020 to 6920S tractors 022204

PN=665

PLC Diagnostic Trouble Codes 2 Checking the transmission output speed sender (B84)

NOTE: Transmission output speed sender (B84) cannot be tested in diagnostic mode while the tractor is being driven. For more detailed information, see Reference 245-05-005, Driving in the Diagnostic Mode.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/Harness test for transmission output speed sender (B84); see Technical Manual, section 245, group PLC.

211 PLC 6

NOT OK: GO TO: Circuit/Harness test for transmission output speed sender (B84); see Technical Manual, section 245, group PLC. LX1017903 –UN–10OCT97

X375 4-pin plug for transmission speed sender in harness W28 at front end of transmission • Remove transmission output speed sender B84 and look for signs of dirt. • Put plug X375 back on (sender removed). • Access address PLC 04. • Move a screwdriver blade rapidly back and forth in front of the sending unit. The display alternates between “0” and “1”: PLC 04 –– Status, transmission output speed sender B84—Specification Signal exists:—Status ............................................................................................. XX1/0

– – –1/1

TM4726 (01NOV03)

211-PLC-6

6020 to 6920S tractors 022204

PN=666

PLC Diagnostic Trouble Codes

PLC 328012.31 — Transmission Output Speed sender, Open or Shorted Circuit

Diagnostic trouble code PLC 328012.31 is stored if an open circuit or shorted circuit to supply voltage (battery voltage) occurs in the circuit of the transmission output speed sender. This diagnostic trouble code does not necessarily mean that the transmission output speed sender is responsible for the fault. The diagnostic trouble code triggers the alarm level: “CAUTION”. NOTE: The following are possible causes: • Defective sender (B84; transmission output speed) (internal short circuit). • Defective line connection between the transmission output speed sender B84 and the park lock controller (PLC). – Open circuit at the ground cable (cable 694) or signal cable (cable 699). – Short to battery voltage in the signal lead (cable 699). NOTE: Go through the procedure for diagnostic trouble code PLC 328010.31 — Transmission Output Speed Sender, Grounded Circuit.

Additional References:

211 PLC 7

• Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Sending Unit (B09, B35 or B84) ” on 6320 to 6620 tractors (Repair Manual, Section 56, Group 15). • “Replacing the Transmission Output Speed Sending Unit (B84)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

LX25546,0000407 –19–01SEP02–1/1

PLC 328016.31 — Park Lock Pressure Sender, Shorted Circuit

Diagnostic trouble code PLC 328016.31 is saved if the controller measures a voltage over 4.8 volts at the signal input of the park lock’s pressure sender. This indicates a short to the power supply (5- or 12-volt) in

the sender’s circuit. This diagnostic trouble code does not necessarily mean that the park lock pressure sender is responsible for the fault. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,0000408 –19–01SEP02–1/1

TM4726 (01NOV03)

211-PLC-7

6020 to 6920S tractors 022204

PN=667

PLC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 PLC 8

• Defective park lock pressure sender B90. • Defective line connection between the park lock pressure sender B90 and the park lock controller (PLC): – A short to battery voltage (12 volts) in the 5-volt power supply circuit (cable 693), which generates an additional diagnostic trouble code (diagnostic trouble code PLC 328102.31 takes priority). – Signal line shorted to 5 or 12 volts (cable 669). Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Park Lock Control Block” on 6320 to 6620 tractors (Repair Manual, Section 53, Group 15). • “Reconditioning the Park Lock Control Block” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 Diagnostic trouble codes that have priority must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-PLC-8

6020 to 6920S tractors 022204

PN=668

PLC Diagnostic Trouble Codes 2 Checking the operation of the park lock

• Access address PLC 12. • Do with test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90) —Specification Park lock’s pressure sender (B90) not under pressure, with ignition ON:— Voltage range (neutral range) ............................................... between 0.3 and 0.75 volts Reverse drive lever in position for corner park (with engine running):—Voltage range (no pressure exists) .................................................... between 0.3 and 0.75 volts Park lock control block, pressure ....................................................... 0 kPa (0 bar; 0 psi) Reverse drive lever in position for neutral (with engine running):—Voltage range (pressure exists) ........................................................... between 2.0 and 4.8 volts Park lock control block, pressure ........................................... 2000 kPa (20 bar; 290 psi)

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/Harness test for park lock’s pressure 211 sender (B90); see PLC Technical Manual, section 9 245, group PLC. NOT OK: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC.

– – –1/1

PLC 328017.31 — Park Lock Pressure Sender, Grounded or Open Circuit

Diagnostic trouble code PLC 328017.31 is saved if the controller measures a voltage less than 0.3 volts at the signal input of the park lock’s pressure sender. This indicates that the sender’s circuit is open or grounded. This diagnostic trouble code does not necessarily mean that the park lock pressure sender is responsible for the fault. The diagnostic trouble code triggers the alarm level: “CAUTION”. NOTE: The following are possible causes: • Defective park lock pressure sender B90. • A short to ground in the 5-volt power supply circuit (cable 693), which generates an additional diagnostic trouble code (diagnostic trouble code PLC 328101.31 takes priority). • Open circuit or short to ground in the signal lead (cable 669) of the park lock pressure sender (B90). • Open circuit in the ground lead (cable 691) of the park lock pressure sender (B90).

NOTE: Go through the procedure for diagnostic trouble code PLC 328016.31 — Park Lock Pressure Sender, Shorted Circuit. Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Park Lock Control Block” on 6320 to 6620 tractors (Repair Manual, Section 53, Group 15). • “Reconditioning the Park Lock Control Block” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

LX25546,0000409 –19–01SEP02–1/1

TM4726 (01NOV03)

211-PLC-9

6020 to 6920S tractors 022204

PN=669

PLC Diagnostic Trouble Codes

PLC 328020.31 — Park Lock Solenoid Valve, Grounded or Shorted Circuit

211 PLC 10

Diagnostic trouble code PLC 328020.31 is stored if the controller registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the park lock. This indicates a ground

or short to the power supply (battery voltage) in the circuit of the solenoid valve. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,000040A –19–01SEP03–1/1

Diagnostics The following are possible causes: • Defective park lock solenoid valve (Y15-2). • Defective lead connection in the positive lead (cable 692). – Short to ground in the circuit of the positive lead (cable 692). – Short to battery voltage in the circuit of the positive lead (cable 692). • Defective lead connection in the ground lead. – Short in the circuit of the ground lead (cable 680) (on tractors up to serial no. 398790). – Short to main ground (ground not switched by controller) in the circuit of the ground lead (cable 680) (on tractors up to serial no. 398790). – Short in the circuit of the ground lead (cable 668) (on tractors from serial no. 398791). – Short to main ground (ground not switched by controller) in the circuit of the ground lead (cable 668) (on tractors from serial no. 398791). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Park Lock Control Block” on 6320 to 6620 tractors (Repair Manual, Section 53, Group 15). • “Reconditioning the Park Lock Control Block” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-PLC-10

6020 to 6920S tractors 022204

PN=670

PLC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

211 PLC 11

– – –1/1

2 Checking the operation of the park lock

• Access address PLC 12. • Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in corner park position:—Voltage range (no pressure exists) .................................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral:—Voltage range (pressure exists) .............................. between 2.0 and 4.8 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: GO TO 3.

– – –1/1

3 Checking park lock solenoid valve (Y15-2)

• Ignition ON (engine OFF). • Access address PLC 16. PLC 16 — Status, solenoid valve Y15-2—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... 000 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. 010

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/Harness test for park lock solenoid valve (Y15-2); see Technical Manual, Section 245, Group PLC. NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-2); see Technical Manual, Section 245, Group PLC.

– – –1/1

TM4726 (01NOV03)

211-PLC-11

6020 to 6920S tractors 022204

PN=671

PLC Diagnostic Trouble Codes

PLC 328021.31 — Park Lock Solenoid Valve, Open Circuit

211 PLC 12

Diagnostic trouble code PLC 328021.31 is stored if the controller registers resistance at the solenoid valve that does not correspond with the switch status of the park lock. This indicates that the solenoid valve’s circuit is open. This diagnostic trouble code triggers the alarm level: “CAUTION”. The following are possible causes:

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Park Lock Control Block” on 6320 to 6620 tractors (Repair Manual, Section 53, Group 15).

• Defective park lock solenoid valve (Y15-2). • Open circuit in power supply lead (cable 692). • Open ground lead (cable 680) (on tractors up to serial no. 398790). • Open ground lead (cable 668) (on tractors from serial no. 398791).

• “Reconditioning the Park Lock Control Block” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15).

NOTE: Go through the procedure for diagnostic trouble code PLC 328020.31 — Park Lock Solenoid Valve, Grounded or Open Circuit.

• Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

• Reference 245-PLC-200, Theory of Operation (Park Lock Controller)

LX25546,000040B –19–01SEP03–1/1

PLC 328030.31 — Transmission Control Unit has Stopped Transmitting Data

Diagnostic trouble code PLC 328030.31 is saved when there is a problem in transferring data between the transmission control unit (TCU) and the park lock controller (PLC). Reception of CAN messages that are

required for operation of the PLC is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000040C –19–01SEP03–1/1

TM4726 (01NOV03)

211-PLC-12

6020 to 6920S tractors 022204

PN=672

PLC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Blown fuse at F04/15 (ELX) or F05/5 (battery). • A fault in the TCU’s circuit (faulty transmission oil temperature sender). – TCU diagnostic trouble codes take priority. • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29-bit CAN BUS connection or power supply to the transmission control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305054.09, UIC 305190.09 and/or SIC 334003.09). • Defective 29-bit CAN BUS connection or power supply to the park lock controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (TCU 304166.09). • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective transmission control unit (TCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-PLC-13

6020 to 6920S tractors 022204

PN=673

211 PLC 13

PLC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 PLC 14

1.2 TCU diagnostic trouble codes take priority.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active and no TCU diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.3

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Checking the TCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

TCU –– plug X332 (W08)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at pin 45 Positive (lead 052) .............................................................. 12 volts at pin 23 and pin 68 Ground (lead 050) ................................................................................. at pin 1 and pin 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit. For component location and pin arrangement, see: • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-PLC-14

6020 to 6920S tractors 022204

PN=674

PLC Diagnostic Trouble Codes 3 Checking the PLC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

PLC –– plug X332 (W08)—Specification Power supply:—Positive, BAT (lead 082) ............................................. 12 volts at pin 23 Positive, ELX (lead 682) ....................................................................... 12 volts at pin 45 Ground (lead 330) ................................................................................................. at pin 1 at pin 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 For circuit diagram, see: • Reference 240-10-037, SE28-Electronic park lock For component location and pin arrangement, see: • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

– – –1/1

PLC 328040.31 — System Voltage Too Low

Diagnostic trouble code PLC 328040.31 is saved if the operating voltage of the park lock controller (battery

voltage) is less than 9 volts. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000040D –19–01SEP03–1/1

TM4726 (01NOV03)

211-PLC-15

6020 to 6920S tractors 022204

PN=675

211 PLC 15

PLC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 PLC 16

• • • • • •

Defective battery. Defective alternator G02. Drive belt is defective or slipping. High current requirements. High resistance in wiring harness. Defective lead connection to the park lock controller (cable 082).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2

OK: GO TO 2.

Perform a visual inspection of the alternator, the battery and the drive belt:

NOT OK: Recondition as required and carry out an operational test.

• Check all components for visible damage. • Check all relevant connectors of the supply circuit for bad, loose, widened or corroded contacts. • Make sure that the drive belt is installed correctly and check for signs of it slipping. • Check ground connections between battery/engine and cab. – Check mounting surfaces for corrosion / paint and loose mounting bolts.

– – –1/1

TM4726 (01NOV03)

211-PLC-16

6020 to 6920S tractors 022204

PN=676

PLC Diagnostic Trouble Codes 2 Checking the voltage at the tractor’s battery

Access address BCU032. BCU032 –– Voltage, Voltage at Tractor’s Battery (BCU Operating Voltage)— Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO 4. 211 PLC 17

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks"; see Technical Manual, Section 240, Group 15.

OK: GO TO 4.

• Check battery, refer to "Battery Checks"; see Technical Manual, Section 240, Group 15.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

4 Checking the PLC’s operating voltage circuit (cables 082 and 330)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-037, SE28-Electronic Park Lock. • Reference 240-10-003, SE1 - Starting and charging circuit For component location and pin arrangement, see: • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

– – –1/1

PLC 328050.31 — Park Lock Alarm, Open or Shorted Circuit at Supply Line

Diagnostic trouble code PLC 328050.31 is stored if one of the following situations arises: - The power supply line, ground line or signal line is open.

- The 5-volt power supply line is shorted to another (12-volt) power supply line. This diagnostic trouble code triggers an alarm: “CAUTION”.

LX25546,000040E –19–01SEP02–1/1

TM4726 (01NOV03)

211-PLC-17

6020 to 6920S tractors 022204

PN=677

PLC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 PLC 18

• • • • •

Defective alarm K10/2. Open circuit in signal lead (cable 635). Open circuit in ground lead (cable 330). Open circuit in positive lead (cable 614). Short to battery voltage (12 volts) in the power supply lead (cable 614).

Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 253-20-024, AutoPowr/IVT Transmission — Operation of Park Lock. • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 240-25-002, Fuses and relays.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

2 Checking the alarm (K10/2)

Access address PLC 09 . PLC 09 –– Status, alarm K10/2—Specification Alarm connected (ready for operation):— Status ............................................................................................................................ 11

NOTE: A “10” in the address display implies a problem in signal line 635 (ground by-passed). A “01” implies a problem in positive line 614, and a “00” implies a problem in ground line 330 or a defective alarm K10/2.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/Harness test for alarm (K10/2); see Technical Manual, section 245, group PLC. NOT OK: GO TO: Circuit/Harness test for alarm (K10/2); see Technical Manual, section 245, group PLC. – – –1/1

TM4726 (01NOV03)

211-PLC-18

6020 to 6920S tractors 022204

PN=678

PLC Diagnostic Trouble Codes

PLC 328051.31 — Park Lock Alarm, Shorted Circuit

Diagnostic trouble code PLC 328051.31 is saved if the alarm’s power supply line is shorted to the signal line or is shorted to ground. The diagnostic trouble code triggers the alarm level: “CAUTION”.

Additional References:

NOTE: The following are possible causes:

• Reference 253-20-024, AutoPowr/IVT Transmission — Operation of Park Lock.

• Defective alarm K10/2. • Defective lead connection in the positive lead (cable 614). – Short to signal lead (cable 635). – Short to ground lead (cable 330). NOTE: Go through the procedure for diagnostic trouble code PLC 328050.31 — Park Lock Alarm, Open or Shorted Circuit at Supply Line .

211 PLC 19

• Electrical information: Reference 210-15-001, General References - Summary.

• Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 240-25-002, Fuses and relays.

LX25546,000040F –19–01SEP02–1/1

PLC 328061.31 — Signals Received from Reverse Drive Lever Do Not Match the CAN BUS Command from the TCU

Diagnostic trouble code PLC 328061.31 is stored if park lock commands sent from the user interface controller (UIC) to the PLC via the transmission control unit (TCU) and the CAN BUS do not match with the direction signals from the reverse drive lever. In its

“active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) or transmission control unit (TCU) and sets off a “CAUTION” alarm.

LX25546,0000410 –19–01APR02–1/1

TM4726 (01NOV03)

211-PLC-19

6020 to 6920S tractors 022204

PN=679

PLC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 PLC 20

• This diagnostic trouble code is generated unintentionally when the transmission control unit (TCU) is calibrated. All the diagnostic trouble codes in the park lock controller should be deleted once the TCU is calibrated. • Defective reverse drive lever (S80). • A problem in the circuit of the reverse drive lever, caused by additional UIC diagnostic trouble codes. These diagnostic trouble codes take priority. • A problem in lead 206 (center park position) between the reverse drive lever and the PLC. • A problem in lead 207 (neutral position) between the reverse drive lever and the PLC. • A problem in lead 251 (entire park range) between the reverse drive lever and the PLC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 UIC diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active and no UIC diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-PLC-20

6020 to 6920S tractors 022204

PN=680

PLC Diagnostic Trouble Codes 2 Checking the neutral, corner park and center park signals

2.1 - Checking the switches for neutral, center park and the entire park lock range at the PLC:

OK: Check all connections for loose, widened, slid-back or corroded contacts. NOT OK: GO TO 2.2.

211 PLC 21

LX1024146 –UN–29NOV00

1—Corner park lock 2—Center park lock 3—Neutral 4—Reverse drive lever

• Ignition ON.

NOTE: An activated switch is indicated by “1” and a non-activated switch by “0”. These appear at the relevant address position. NOTE: Where 2 and 3 overlap, all the switches are activated. In this range, the display shows “111”. • Access address PLC 10. PLC 10 –– Status, switch for neutral, center park lock and entire park lock range—Specification Lever in range 2 (center park position):—Status ........................................................................................................ 1XX Lever in ranges 1 or 2 (entire park lock range):—Status ......................................................................................................... X1X Lever in range 3 (neutral):—Status ............................................................................. XX1

– – –1/2

TM4726 (01NOV03)

211-PLC-21

6020 to 6920S tractors 022204

PN=681

PLC Diagnostic Trouble Codes 2.2 - Checking the switches for neutral, corner park and center park at the UIC:

OK: The problem lies in the harness between the reverse drive lever (S80) and park lock controller PLC: Check circuit, GO TO: Circuit/Harness test for neutral, corner park and center park switches; see Technical Manual, section 245, group PLC.

211 PLC 22

NOT OK: If there is a general problem at the reverse drive lever, see reference 245-UIC-101, Circuit Test for Reverse Drive Lever (S80) in Section 245, Group UIC of the Technical Manual. LX1024146 –UN–29NOV00

1—Corner park lock 2—Center park lock 3—Neutral 4—Reverse drive lever

NOTE: Where the individual signals overlap, three signals are displayed at the same time. • Ignition ON. • Access address UIC 06. UIC 06 –– Signal for neutral, corner park and center park position—Specification Lever in range 1 (corner park lock position):—Status ........................................................................................................ 1XX Lever in range 2 (center park lock position):—Status ...................................................................................................... X1X Lever in range 3 (neutral position):— Status .......................................................................................................................... XX1 –19– –2/2

PLC 328101.31 — Power Supply to Park Lock Pressure Sender, Grounded Circuit

Diagnostic trouble code PLC 328101.31 is saved if the 5-volt power supply circuit of the park lock pressure

sender is shorted to ground. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,0000411 –19–01APR02–1/1

TM4726 (01NOV03)

211-PLC-22

6020 to 6920S tractors 022204

PN=682

PLC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective park lock pressure sender B90. • Ground in the circuit of the 5-volt power supply (cable 693).

211 PLC 23

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Park Lock Control Block” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Reconditioning the Park Lock Control Block” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-PLC-23

6020 to 6920S tractors 022204

PN=683

PLC Diagnostic Trouble Codes 2 Checking the power supply to park lock pressure sender

211 PLC 24

OK: • Diagnosis completed.

Access address PLC 34 : PLC 34 — Voltage, 5-volt Power Supply for Park Lock Pressure Sender— Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

• Type of error indicates a loose contact: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC. NOT OK: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC.

– – –1/1

PLC 328102.31 — Power Supply to Park Lock Pressure Sender, Shorted Circuit

Diagnostic trouble code PLC 328102.31 is saved if the 5-volt power supply circuit of the park lock pressure sender is shorted to the power lead (battery voltage). The diagnostic trouble code triggers the alarm level: “CAUTION”. NOTE: The following are possible causes: • Defective park lock pressure sender B90. • Short to battery voltage (12V) in the circuit of the 5-volt power supply (cable 693).

NOTE: Go through the procedure for diagnostic trouble code PLC 328101.31 — Power Supply to Park Lock Pressure Sender, Grounded Circuit.

• Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Park Lock Control Block” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Reconditioning the Park Lock Control Block” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-PLC-200, Theory of Operation. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

Additional references:

LX25546,0000412 –19–01APR02–1/1

TM4726 (01NOV03)

211-PLC-24

6020 to 6920S tractors 022204

PN=684

PLC Diagnostic Trouble Codes

PLC 328106.31 — Controller, Internal Error

Diagnostic trouble code PLC 328106.31 is saved when there is an error in the memory of the park lock controller. All the values in the memory are replaced by basic settings defined at the factory. This may

result in changes in the way the control unit functions. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,0000413 –19–01AUG01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the controller (PLC).

– – –1/1

PLC 328240.31 — Controller Connected to Wrong Wiring Harness Connector

Diagnostic trouble code PLC 328240.31 is stored when the park lock controller detects an erroneous signal in the circuit of the control unit identification. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,0000414 –19–16DEC03–1/1

TM4726 (01NOV03)

211-PLC-25

6020 to 6920S tractors 022204

PN=685

211 PLC 25

PLC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 PLC 26

• Wrong control unit connected to PLC connector X382. • Open circuit at lead 514. • Defective PLC.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the circuit

2.1 - Check the controller: Check the controller connected to PLC connector X382 (is the correct controller connected?).

OK: If the correct controller is connected, GO TO 2.2. NOT OK: Connect the correct controller to connector X382 and test its functionality.

2.2 - Check the connecting lead: • Ignition OFF.

OK: Replace the controller and carry out an operational test.

PLC –– plug X332 (W08)—Specification Check the controller’s identification circuit:—Continuity ..................................................... between pins 18 and 30 (lead 514)

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-037, SE28-Electronic park lock For component location and pin arrangement, see: • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-PLC-26

6020 to 6920S tractors 022204

PN=686

Group PRF

PRF Diagnostic Trouble Codes PRF 000629.12 — Control Unit, Internal Error

Diagnostic trouble code PRF 000629.12 is saved when the performance monitor recognizes a software

problem. The diagnostic trouble code triggers the alarm level: “Information”.

211 PRF 1

LX16167,00000B9 –19–03APR02–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace performance monitor (PRF).

– – –1/1

PRF 000639.12 — Control Unit, Internal Error

Diagnostic trouble code PRF 000639.12 is saved when the performance monitor recognizes a software problem. The diagnostic trouble code triggers the alarm level: “Information”. This diagnostic trouble code does not necessarily have any real meaning. It is often

stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,00000BA –19–03APR02–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-PRF-1

6020 to 6920S tractors 022204

PN=687

PRF Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace performance monitor (PRF).

211 PRF 2

– – –1/1

PRF 000639.13 — 29-bit CAN BUS, High Error Rate

Diagnostic trouble code PRF 000639.13 is saved when the performance monitor recognizes a high error rate in the incoming CAN BUS messages. The diagnostic trouble code triggers the alarm level: “Information”. This diagnostic trouble code does not necessarily have

any real meaning. It is often stored by chance when the main switch is turned (ignition ON and OFF). For this reason, diagnosis only needs to be performed if one or more related faults occur in conjunction with this code.

LX16167,00000BB –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A general 29 BIT CAN BUS problem. – Diagnostic trouble code BCU 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29 BIT CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29 BIT CAN BUS connection to the performance monitor (cable 934 and/or 935). • Internal problem in the performance monitor. • 29 BIT CAN BUS malfunction caused by strong electromagnetic influences. Additional References: • Electrical Information: Reference 210-15-001, General References - Summary. • Reference 245-PRF-200, Performance Monitor - Theory of Operation. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-PRF-2

6020 to 6920S tractors 022204

PN=688

PRF Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and 211 no priority diagnostic PRF codes exist: GO TO 1.2 3 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2 .

– – –1/1

2 Check 29 BIT CAN BUS Connection to Performance Monitor

2.1 Access address PRF 05: PRF 05 –– Voltage, 29 BIT CAN BUS Communication Line 934—Specification CAN BUS operational voltage:—Voltage range ................................................................................................................ 2.0 - 3.0 V 2.2 Access address PRF 06: PRF 06 –– Voltage, 29 BIT CAN BUS Communication Line 935—Specification CAN BUS operational voltage:—Voltage range ................................................................................................................ 2.0 - 3.0 V

OK: • Check CAN BUS connection of the performance monitor for contacts that are loose/bad/slid back. • Check CAN BUS screen lines (cable +930 and/or -932). IF OK: CAN BUS connection is OK: Replace PRF and carry out an operational test. NOT OK: Check 29 BIT CAN BUS connection to performance monitor.

– – –1/1

TM4726 (01NOV03)

211-PRF-3

6020 to 6920S tractors 022204

PN=689

PRF Diagnostic Trouble Codes

PRF 000639.19 — 29-bit CAN BUS, Very High Error Rate

211 PRF 4

Diagnostic trouble code PRF 000639.19 is saved when the performance monitor recognizes a very high error rate in the incoming CAN BUS messages. The

diagnostic trouble code triggers the alarm level: “Information”.

LX16167,00000BC –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A general 29 BIT CAN BUS problem. – Diagnostic trouble code BCU 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29 BIT CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29 BIT CAN BUS connection to the performance monitor (cable 934 and/or 935). • Internal problem in the performance monitor. • 29 BIT CAN BUS malfunction caused by strong electromagnetic influences. Additional References: • Electrical Information: Reference 210-15-001, General References - Summary. • Reference 245-PRF-200, Performance Monitor - Theory of Operation. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-PRF-4

6020 to 6920S tractors 022204

PN=690

PRF Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and 211 no priority diagnostic PRF codes exist: GO TO 1.2 5 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2 .

– – –1/1

2 Check 29 BIT CAN BUS Connection to Performance Monitor

2.1 Access address PRF 05: PRF 05 –– Voltage, 29 BIT CAN BUS Communication Line 934—Specification CAN BUS operational voltage:—Voltage range ................................................................................................................ 2.0 - 3.0 V 2.2 Access address PRF 06: PRF 06 –– Voltage, 29 BIT CAN BUS Communication Line 935—Specification CAN BUS operational voltage:—Voltage range ................................................................................................................ 2.0 - 3.0 V

OK: • Check CAN BUS connection of the performance monitor for contacts that are loose/bad/slid back. • Check CAN BUS screen lines (cable +930 and/or -932). IF OK: CAN BUS connection is OK: Replace PRF and carry out an operational test. NOT OK: Check 29 BIT CAN BUS connection to performance monitor.

– – –1/1

TM4726 (01NOV03)

211-PRF-5

6020 to 6920S tractors 022204

PN=691

PRF Diagnostic Trouble Codes

PRF 100177.19 — Key Error

211 PRF 6

Diagnostic trouble code PRF 100177.19 is saved when the performance monitor recognizes an erroneous key

signal. The diagnostic trouble code triggers the alarm level: “Information”.

LX16167,00000BD –19–03APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Internal problem in the performance monitor. Additional References: • Electrical Information: Reference 210-15-001, General References - Summary. • Reference 245-PRF-200, Performance Monitor - Theory of Operation. – – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check Keypad Status (Top)

NOTE: When testing the keys in the top two rows, always keep the "Area" key pressed. This prevents the address from changing.

OK: GO TO 3. NOT OK: Replace the performance monitor and repeat the test.

Access address PRF 10: PRF 10 –– Status, Keypad Status (Top)—Specification No key pressed:—Status ...................................................................................... 000000 “Area (1)” key pressed:—Status ......................................................................... XXXXX1 “Implement (2)” key pressed:—Status ................................................................ XXXX1X “% Slip (3)” key pressed:—Status ....................................................................... XXX1XX “Distance (4)” key pressed:—Status ................................................................... XX1XXX “Area / H (5)” pressed:—Status .......................................................................... X1XXXX “Vehicle Speed (6)” key pressed:— Status .................................................................................................................. 1XXXXX

– – –1/1

TM4726 (01NOV03)

211-PRF-6

6020 to 6920S tractors 022204

PN=692

PRF Diagnostic Trouble Codes 3 Check Keypad Status (Bottom)

NOTE: When testing the keys in the bottom two rows, always keep the "Width" key pressed. This prevents the address from changing.

OK: Diagnosis completed.

Access address PRF 11:

NOT OK: Replace the performance monitor and repeat the test.

PRF 11 –– Status, Keypad Status (Bottom)—Specification No key pressed:—Status ...................................................................................... 000000 “Width (7)” key pressed:—Status ........................................................................ XXXXX1 “Service (8)” key pressed:—Status ..................................................................... XXXX1X “PTO Speed (9)” key pressed:—Status .............................................................. XXX1XX “Backlight” key pressed—Status ......................................................................... XX1XXX “Zero (0)” key pressed:—Status .......................................................................... X1XXXX “Set/Save” key pressed:—Status ........................................................................ 1XXXXX

– – –1/1

TM4726 (01NOV03)

211-PRF-7

6020 to 6920S tractors 022204

PN=693

211 PRF 7

PRF Diagnostic Trouble Codes

211 PRF 8

TM4726 (01NOV03)

211-PRF-8

6020 to 6920S tractors 022204

PN=694

Group SFA

SFA Diagnostic Trouble Codes SFA 000629.12 — Control Unit, Internal Fault

Diagnostic trouble code SFA 000629.12 is saved when the control unit for the suspension of the TLS front axle and the cab (SFA) recognizes a software

problem. This diagnostic trouble code triggers the alarm level: “Information”.

211 SFA 1

LX25546,00003CA –19–01JUL01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the control unit (SFA).

– – –1/1

SFA 000639.12 — Control Unit, Internal Fault

Diagnostic trouble code SFA 000639.12 is saved when the control unit for the suspension of the TLS front axle and the cab (SFA) recognizes a software

problem. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,00003CB –19–01JUL01–1/1

Diagnostics

NOTE: .

– – –1/1

TM4726 (01NOV03)

211-SFA-1

6020 to 6920S tractors 022204

PN=695

SFA Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the control unit (SFA).

211 SFA 2

– – –1/1

SFA 000639.13 — 29-bit CAN BUS, High Error Rate

Diagnostic trouble code SFA 000639.13 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the front axle and/or cab suspension is not operating properly. Diagnostic

trouble code SFA 000639.13 is saved when the control unit for the suspension of the TLS front axle and the cab (SFA) recognizes a high error rate in the incoming CAN BUS messages. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,00003CC –19–01APR02–1/1

Diagnostics The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29-bit CAN BUS connection to the SFA control unit (cable +934 and/or -935). • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SFA-2

6020 to 6920S tractors 022204

PN=696

SFA Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and front axle and/or cab suspension is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active and front axle and/or cab suspension is not operating properly: Diagnostic trouble code BIF 000639.02 takes priority.

– – –1/1

SFA 000639.19 — 29-bit CAN BUS, Very High Error Rate

Diagnostic trouble code SFA 000639.19 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the front axle and/or cab suspension is not operating properly. Diagnostic

trouble code SFA 000639.19 is saved when the control unit for the suspension of the TLS front axle and the cab (SFA) recognizes a very high error rate in the incoming CAN BUS messages. This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,00003CD –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-3

6020 to 6920S tractors 022204

PN=697

211 SFA 3

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 SFA 4

• A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective CAN BUS screen: – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Defective screen lines (cable +930 and/or -932). – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • Defective 29-bit CAN BUS connection to the SFA control unit (cable +934 and/or -935). • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and front axle and/or cab suspension is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active and front axle and/or cab suspension is not operating properly: Diagnostic trouble code BIF 000639.02 takes priority.

– – –1/1

TM4726 (01NOV03)

211-SFA-4

6020 to 6920S tractors 022204

PN=698

SFA Diagnostic Trouble Codes

SFA 324025.13 — Suspended Front Axle Control Unit (SFA) Incorrectly Calibrated

Diagnostic trouble code SFA 324025.13 is saved if an erroneous signal is detected from one or several senders during the calibration. If there is a problem at a sensor, an extra diagnostic trouble code will be

stored that is associated with the defective sensor. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 5

LX25546,0000350 –19–01APR02–1/1

Diagnostics The following are possible causes: • • • •

SFA receives a ground speed signal during the calibration. Position sensor rod misadjusted (linkage). SFA diagnostic trouble codes that indicate a defect at the sensors/solenoid valves should take priority. Hydraulic malfunction.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-001, Front-Wheel Drive Axle with TLS — Summary of References. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 245-SFA-200, Theory of Operation (SFA Control Unit):

– – –1/1

TM4726 (01NOV03)

211-SFA-5

6020 to 6920S tractors 022204

PN=699

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SFA 6 1.2 SFA diagnostic trouble codes that indicate a defect at the sensors/solenoid valves should take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: If no diagnostic trouble codes are saved: GO TO 1.3. NOT OK: SFA diagnostic trouble codes must be processed first.

1.3

OK: GO TO 2.

Perform a visual inspection if applicable. Repair or replace components as necessary:

NOT OK: Recondition as required and carry out an operational test.

• Check for oil leaks from following areas: ❒ At vertical hydraulic cylinders at front of tractor. ❒ At the two pressure accumulators. ❒ Under transmission. ❒ At control valve housing for front axle suspension. ❒ At main block and connections to the front axle suspension components. • Check transmission oil level. • Check fuse F03_08. • Check for visual signs of damage to the front axle suspension component (see Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components).

– – –1/1

2 Calibrate Suspended Front Axle Control Unit

NOTE: Ensure that the tractor is standing on level ground during the calibration so that it cannot roll and thus achieve ground speed. Calibrate suspended front axle control unit: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS.

OK: Calibration successful. Diagnosis completed. NOT OK: Calibration not successful: GO TO 3. – – –1/1

3 Checking the setting of the position sensor rod

Check the adjustment of the position sensor (B53) rod, see Reference 280-15-003 Adjusting the Sensor Rod (Position Sensor Linkage).

OK: Dimension of sensor rod is OK: GO TO 4. NOT OK: Adjust the rod and recalibrate suspended front axle control unit: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS.

– – –1/1

TM4726 (01NOV03)

211-SFA-6

6020 to 6920S tractors 022204

PN=700

SFA Diagnostic Trouble Codes 4 Checking the ground speed signal

Access address BCU 04:

OK: GO TO 6.

BCU 04 –– Status, Wheel Speed Sender (B63/B35/B09)—Specification No signal detected (tractor is stationary):—Status .................................................................................................. XX0X Signal detected by sender (during travel):—Status ......................................................................................................... XX1X

NOT OK: GO TO 5.

211 SFA 7

– – –1/1

5 Checking the wheel speed senders (B63/B35/B09)

Check the wheel speed senders (B63/B35/B09): • Tractors with AutoPowr/IVT transmission Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical Manual. • Tractor with creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B09) (6120-6620); see Section 245, Group BCU in the Technical Manual. • Tractor with creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B09) (6820/6920); see Section 245, Group BCU in the Technical Manual. • Tractor without creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B35) (6120-6620); see Section 245, Group BCU in the Technical Manual. • Tractor without creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B35) (6820-6920); see Section 245, Group BCU in the Technical Manual.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

6 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Delete diagnostic trouble code. If diagnostic trouble code still persists, replace SFA control unit and calibrate new SFA control unit. See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-7

6020 to 6920S tractors 022204

PN=701

SFA Diagnostic Trouble Codes

SFA 324026.13 — Suspended Front Axle Control Unit Not Calibrated

211 SFA 8

Diagnostic trouble code SFA 324026.13 is saved, if the previous calibration was not saved or the new control

unit has not been calibrated yet. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003CE –19–01JUL01–1/1

Diagnostics The following are possible causes: • Last calibration was not saved. • New suspended front axle control unit has not been calibrated. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Calibrate Suspended Front Axle Control Unit

NOTE: Ensure that the tractor is standing on level ground during the calibration so that it cannot roll and thus achieve ground speed. Calibrate suspended front axle control unit: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS.

OK: Calibration successful. Diagnosis completed. NOT OK: Delete diagnostic trouble code and carry out an operational test. If diagnostic trouble code still persists, replace defective SFA control unit and calibrate new SFA control unit. – – –1/1

TM4726 (01NOV03)

211-SFA-8

6020 to 6920S tractors 022204

PN=702

SFA Diagnostic Trouble Codes

SFA 324027.13 — Suspended Cab Control Unit Not Calibrated Correctly

Diagnostic trouble code SFA 324027.13 is saved if an erroneous signal is detected from one or several senders during the calibration. If there is a problem at a sensor, an extra diagnostic trouble code will be

stored that is associated with the defective sensor. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 9

LX25546,00003CF –19–01APR02–1/1

Diagnostics The following are possible causes: • • • •

SFA receives a ground speed signal during the calibration. Position sensor rod misadjusted (linkage). SFA diagnostic trouble codes that indicate a defect at the sensors/solenoid valves should take priority. Hydraulic malfunction.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 245-SFA-200, Theory of Operation (SFA Control Unit):

– – –1/1

TM4726 (01NOV03)

211-SFA-9

6020 to 6920S tractors 022204

PN=703

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SFA 10 1.2 SFA diagnostic trouble codes that indicate a defect at the sensors/solenoid valves should take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: If no diagnostic trouble codes are saved: GO TO 1.3. NOT OK: SFA diagnostic trouble codes must be processed first.

1.3

OK: GO TO 2.

Perform a visual inspection if applicable. Repair or replace components as necessary:

NOT OK: Recondition as required and carry out an operational test.

• Check for oil leaks from following areas: ❒ At vertical hydraulic cylinders at rear of tractor. ❒ At the two pressure accumulators. ❒ Under transmission. ❒ At control valve housing for cab suspension. ❒ At main block and connections to the cab suspension components. • Check transmission oil level. • Check fuse F03_08. • Check cab suspension components for visible damage.

– – –1/1

2 Calibrating the suspended front axle control unit (SFA)

NOTE: Ensure that the tractor is standing on level ground during the calibration so that it cannot roll and thus achieve ground speed. Calibrate the suspended front axle control unit (SFA): See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension.

OK: Calibration successful. Diagnosis completed. NOT OK: Calibration not successful: GO TO 3. – – –1/1

3 Checking the setting of the position sensor rod

Check the setting of the rod of position sensor B110; see Reference 290-15-120, Hydro-pneumatic Cab Suspension — Adjusting the Sensor Rod (Position Sensor Linkage).

OK: Dimension of sensor rod is OK: GO TO 4. NOT OK: Adjust the rod and recalibrate the suspended cab control unit: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension.

– – –1/1

TM4726 (01NOV03)

211-SFA-10

6020 to 6920S tractors 022204

PN=704

SFA Diagnostic Trouble Codes 4 Checking the ground speed signal

Access address BCU 04:

OK: GO TO 6.

BCU 04 –– Status, Wheel Speed Sender (B63/B35/B09)—Specification No signal detected (tractor is stationary):—Status .................................................................................................. XX0X Signal detected by sender (during travel):—Status ......................................................................................................... XX1X

NOT OK: GO TO 5.

211 SFA 11

– – –1/1

5 Checking the wheel speed senders (B63/B35/B09)

Check the wheel speed senders (B63/B35/B09): • Tractors with AutoPowr/IVT transmission Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical Manual. • Tractor with creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B09) (6120-6620); see Section 245, Group BCU in the Technical Manual. • Tractor with creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B09) (6820/6920); see Section 245, Group BCU in the Technical Manual. • Tractor without creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B35) (6120-6620); see Section 245, Group BCU in the Technical Manual. • Tractor without creeper (PowrQuad Plus / AutoQuad transmission): Circuit/harness test for wheel speed sender (B35) (6820-6920); see Section 245, Group BCU in the Technical Manual.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

6 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Delete diagnostic trouble code. If diagnostic trouble code still persists, replace SFA control unit and calibrate new SFA control unit. See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-11

6020 to 6920S tractors 022204

PN=705

SFA Diagnostic Trouble Codes

SFA 324028.13 — Suspended Cab Control Unit Not Calibrated

211 SFA 12

Diagnostic trouble code SFA 324028.13 is saved, if the previous calibration was not saved or the new control

unit has not been calibrated yet. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003D0 –19–01JUL01–1/1

Diagnostics The following are possible causes: • Last calibration was not saved. • New suspended cab control unit has not been calibrated. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Calibrate Suspended Cab Control Unit

NOTE: Ensure that the tractor is standing on level ground during the calibration so that it cannot roll and thus achieve ground speed. Calibrate suspended front axle control unit: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension.

OK: Calibration successful. Diagnosis completed. NOT OK: Delete diagnostic trouble code and carry out an operational test. If diagnostic trouble code still persists, replace defective SFA control unit and calibrate new SFA control unit. – – –1/1

TM4726 (01NOV03)

211-SFA-12

6020 to 6920S tractors 022204

PN=706

SFA Diagnostic Trouble Codes

SFA 324040.04 — Solenoid Y42, Grounded Circuit

Diagnostic trouble code SFA 324040.04 is saved when current measured by the control unit while the cab suspension is on is too low. This indicates a short to

ground in the solenoid circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 13

LX25546,00003D1 –19–01APR02–1/1

Diagnostics The following are possible causes: • Defective solenoid Y42. • Defective line connection in solenoid circuit (lead 715). – Short to ground in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for cab solenoid valve (Y42); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-13

6020 to 6920S tractors 022204

PN=707

SFA Diagnostic Trouble Codes

SFA 324041.05 — Solenoid Y42, Shorted or Open Circuit

211 SFA 14

Diagnostic trouble code SFA 324041.05 is saved when no current or too high current is measured by the control unit while the cab suspension is on. This

indicates that the solenoid circuit is open or shorted to the power supply. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003D2 –19–01APR02–1/1

Diagnostics The following are possible causes: • Defective solenoid (Y42). • Defective/bad ground connection (XGND1). • Defective line connection in solenoid circuit (lead 715 or 310). – Open lead in solenoid circuit. – Short circuit (battery voltage) in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for cab solenoid valve (Y42); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-14

6020 to 6920S tractors 022204

PN=708

SFA Diagnostic Trouble Codes

SFA 324042.04 — Solenoid Y43, Grounded Circuit

Diagnostic trouble code SFA 324042.04 is saved when current measured by the control unit while the cab suspension is on is too low. This indicates a short to

ground in the solenoid circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 15

LX25546,00003D3 –19–01APR02–1/1

Diagnostics The following are possible causes: • Defective solenoid Y43. • Defective line connection in solenoid circuit (lead 709). – Short to ground in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for cab solenoid valve (Y43); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-15

6020 to 6920S tractors 022204

PN=709

SFA Diagnostic Trouble Codes

SFA 324043.05 — Solenoid Y43, Shorted or Open Circuit

211 SFA 16

Diagnostic trouble code SFA 324043.05 is saved when no current or too high current is measured by the control unit while the cab suspension is on. This

indicates that the solenoid circuit is open or shorted to the power supply. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003D4 –19–01APR02–1/1

Diagnostics The following are possible causes: • Defective solenoid (Y43). • Defective/bad ground connection (XGND1). • Defective line connection in solenoid circuit (lead 709 or 310). – Open lead in solenoid circuit. – Short circuit (battery voltage) in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for cab solenoid valve (Y43); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-16

6020 to 6920S tractors 022204

PN=710

SFA Diagnostic Trouble Codes

SFA 324044.04 — Solenoid Y10, Grounded Circuit

Diagnostic trouble code SFA 324044.04 is saved if current measured by the control unit is too low while the axle suspension is on. This indicates a short to

ground in the solenoid circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 17

LX25546,00003D5 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective solenoid Y10. • Defective line connection in solenoid circuit (lead 706). – Short to ground in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for TLS solenoid valve (Y10); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-17

6020 to 6920S tractors 022204

PN=711

SFA Diagnostic Trouble Codes

SFA 324045.05 — Solenoid Y10, Shorted or Open Circuit

211 SFA 18

Diagnostic trouble code SFA 324045.05 is saved when no current or too high current is measured by the control unit while the axle suspension is on. This

indicates that the solenoid circuit is open or shorted to the power supply. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003D6 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective solenoid (Y10). • Defective/bad ground connection (XGND9). • Defective line connection in solenoid circuit (lead 706 or 310). – Open lead in solenoid circuit. – Short circuit (battery voltage) in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for TLS solenoid valve (Y10); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-18

6020 to 6920S tractors 022204

PN=712

SFA Diagnostic Trouble Codes

SFA 324046.04 — Solenoid Y11, Grounded Circuit

Diagnostic trouble code SFA 324046.04 is saved if current measured by the control unit is too low while the axle suspension is on. This indicates a short to

ground in the solenoid circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 19

LX25546,00003D7 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective solenoid Y11. • Defective line connection in solenoid circuit (lead 707). – Short to ground in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for TLS solenoid valve (Y11); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-19

6020 to 6920S tractors 022204

PN=713

SFA Diagnostic Trouble Codes

SFA 324047.05 — Solenoid Y11, Shorted or Open Circuit

211 SFA 20

Diagnostic trouble code SFA 324047.05 is saved when no current or too high current is measured by the control unit while the axle suspension is on. This

indicates that the solenoid circuit is open or shorted to the power supply. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003D8 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Defective solenoid (Y11). • Defective/bad ground connection (XGND9). • Defective line connection in solenoid circuit (lead 707 or 310). – Open lead in solenoid circuit. – Short circuit (battery voltage) in solenoid circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Circuit/harness test for TLS solenoid valve (Y11); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-20

6020 to 6920S tractors 022204

PN=714

SFA Diagnostic Trouble Codes

SFA 324048.31 — Up is Commanded by the Cab Suspension Control Unit, but the Cab Moves Down

Diagnostic trouble code SFA 324048.31 is saved when the control unit registers - via the position sensor - a downward movement during calibration of the cab,

although the control unit ordered an upward movement (solenoid Y43 activated). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003D9 –19–01APR02–1/1

Diagnostics The following are possible causes: • A circuit fault in the solenoid circuit (Y42) is generating another diagnostic trouble code (SFA 324041.05). This diagnostic trouble code takes priority. • A circuit fault in the solenoid circuit (Y43) is generating another diagnostic trouble code (SFA 324042.04 or SFA 324043.05). These diagnostic trouble codes take priority. • Mechanical defect at solenoid Y42 (stuck in open position). • Open service valve. • Defective check valve in control block. • A general hydraulic problem is generating diagnostic trouble code SFA 324050.31 in addition. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components. • Reference 290-20-090, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Raising”. • Reference 290-20-095, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Lowering”. • Reference 270-20-020, PFC Hydraulic System — Operation.

– – –1/1

TM4726 (01NOV03)

211-SFA-21

6020 to 6920S tractors 022204

PN=715

211 SFA 21

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SFA 22

1.2 Priority diagnostic trouble codes (SFA 324041.05, SFA 324042.04 and SFA 324043.05) must be processed first.

1.3 A general hydraulic problem is generating diagnostic trouble code SFA 324050.31 in addition.

OK: If no diagnostic trouble codes are stored, GO TO 1.3. NOT OK: Process the priority diagnostic trouble codes.

OK: Diagnostic trouble code is not stored: GO TO 1.4. NOT OK: Check the hydraulic circuit, GO TO 4.

1.4 Check whether the service valve on the control block is open: see Reference 290-20-085, Hydro-pneumatic Cab Suspension — Control block, components.

OK: If the service valve is closed, GO TO 2 NOT OK: Close the service valve and delete the diagnostic trouble code.

– – –1/1

2 Calibrating the suspended cab

Mode of operation of the solenoid valves Y42 and Y43 Solenoid 1

Solenoid 2

Responsible for

Y42 open (activated electrically)

Y43 closed (not activated electrically)

Cab moves down (hydraulic cylinders retract)

Y42 closed (not activated electrically)

Y43 open (activated electrically)

Cab moves up (hydraulic cylinders extend)

OK: Calibration was successful: Diagnosis completed. NOT OK: Calibration was not successful: GO TO 3.

To test solenoids Y42 and Y43, the suspended cab must be calibrated. Calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

TM4726 (01NOV03)

211-SFA-22

6020 to 6920S tractors 022204

PN=716

SFA Diagnostic Trouble Codes 3 Check for mechanical defects on solenoid (Y42)

Check whether solenoid Y42 is stuck in open position (mechanical defect).

OK: Solenoid Y42 is OK (no mechanical defect): • Repair the control block as necessary. • Check the hydraulic circuit, GO TO 4. NOT OK: Repair as required and subsequently calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension.

– – –1/1

4 Checking the hydraulic circuit

Check the hydraulic circuit. See Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

SFA 324049.31 — Down is Commanded by the Cab Suspension Control Unit, but the Cab Moves Up

Diagnostic trouble code SFA 324049.31 is saved when the control unit registers - via the position sensor - an upward movement during calibration of the cab,

although the control unit ordered a downward movement (solenoid Y42 activated). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003DA –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-23

6020 to 6920S tractors 022204

PN=717

211 SFA 23

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 SFA 24

• A circuit fault in the solenoid circuit (Y42) is generating another diagnostic trouble code (SFA 324040.04 or SFA 324041.05). These diagnostic trouble codes take priority. • A circuit fault in the solenoid circuit (Y43) is generating another diagnostic trouble code (SFA 324043.05). This diagnostic trouble code takes priority. • Mechanical defect at solenoid Y42 (stuck in closed position). • Mechanical defect at solenoid Y43 (stuck in open position). • Defective check valve in control block. • A general hydraulic problem is generating diagnostic trouble code SFA 324051.31 in addition. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components. • Reference 290-20-090, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Raising”. • Reference 290-20-095, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Lowering”. • Reference 270-20-020, PFC Hydraulic System — Operation.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic trouble codes (SFA 324041.05, SFA 324042.04 and SFA 324043.05) must be processed first.

1.3 A general hydraulic problem is generating diagnostic trouble code SFA 324050.31 in addition.

OK: If no diagnostic trouble codes are stored, GO TO 1.3. NOT OK: Process the priority diagnostic trouble codes.

OK: Diagnostic trouble code is not stored: GO TO 2. NOT OK: Diagnostic trouble code is active, GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-SFA-24

6020 to 6920S tractors 022204

PN=718

SFA Diagnostic Trouble Codes 2 Calibrating the suspended cab

Mode of operation of the solenoid valves Y42 and Y43 Solenoid 1

Solenoid 2

Responsible for

Y42 open (activated electrically)

Y43 closed (not activated electrically)

Cab moves down (hydraulic cylinders retract)

Y42 closed (not activated electrically)

Y43 open (activated electrically)

Cab moves up (hydraulic cylinders extend)

OK: Calibration was successful: Diagnosis completed. NOT OK: Calibration was not successful: GO TO 3.

To test solenoids Y42 and Y43, the suspended cab must be calibrated. Calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Checking for mechanical defects on solenoids (Y42 and Y43)

• Check if solenoid valve (Y42) is stuck in closed position (refer to "Repairing the Solenoid Valves" in Section 90, Group 25 in the Repair Manual). • Check if solenoid valve (Y43) is stuck in open position (refer to "Repairing the Solenoid Valves" in Section 90, Group 25 in the Repair Manual).

OK: Solenoids Y42 and Y43 are OK (no mechanical defect): • Repair the control block as necessary. • Check the hydraulic circuit, GO TO 4. NOT OK: Repair as required and subsequently calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension.

– – –1/1

4 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-25

6020 to 6920S tractors 022204

PN=719

211 SFA 25

SFA Diagnostic Trouble Codes

SFA 324050.31 — Axle Moves Down Although Commanded by SFA to Move Up

211 SFA 26

Diagnostic trouble code SFA 324050.31 is saved when the control unit registers - via the position sensor - a downward movement during the front axle calibration,

although the control unit ordered an upward movement (solenoid Y10 and Y11 activated). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003DB –19–01SEP02–1/1

Diagnostics The following are possible causes: • A circuit fault in the solenoid circuit (Y10) is generating another diagnostic trouble code (SFA 324044.04 and/or SFA 324045.05). These diagnostic trouble codes take priority. • Mechanical defect at solenoid Y10 (stuck in closed position). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-140, Front-Wheel Drive Axle with TLS—SFA Control Unit. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • Reference 280-20-180, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Raise”. • Reference 280-20-190, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Lower”. • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

TM4726 (01NOV03)

211-SFA-26

6020 to 6920S tractors 022204

PN=720

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. 211 NOT OK: Diagnostic SFA trouble code is active: GO 27 TO 2.

1.2 Priority diagnostic codes must be processed first.

– – –1/1

2 Calibrate Suspended Front Axle

Mode of operation of the solenoid valves Y10 and Y11 Solenoid 1

Solenoid 2

Responsible for

Y10 open (activated electrically)

Y11 open (activated electrically)

Front axle moves up (hydraulic cylinders extend)

Y10 closed (not activated electrically)

Y11 open (activated electrically)

Front axle moves down (hydraulic cylinders retract)

To test solenoids Y10 and Y11, the suspended front axle must be calibrated.

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for TLS solenoid valve (Y10). NOT OK: Calibration was not successful: GO TO 3.

Calibrate suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check for mechanical defects on solenoid (Y10)

Check if solenoid valve (Y10) is stuck in closed position: • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

OK: Solenoid Y10 is OK (no mechanical defect): GO TO 4. NOT OK: Repair as required and subsequently calibrate the suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. – – –1/1

4 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-27

6020 to 6920S tractors 022204

PN=721

SFA Diagnostic Trouble Codes

SFA 324051.31 — Axle Moves Up Although Commanded by SFA to Move Down

211 SFA 28

Diagnostic trouble code SFA 324051.31 is saved when the control unit registers - via the position sensor - an upward movement during the front axle calibration,

although the control unit ordered a downward movement (solenoid Y11 activated). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003DC –19–01SEP02–1/1

Diagnostics The following are possible causes: • A circuit fault in the solenoid circuit (Y10) is generating another diagnostic trouble code (SFA 324045.05). This diagnostic trouble code takes priority. • Mechanical defect at solenoid Y10 (stuck in open position). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-140, Front-Wheel Drive Axle with TLS—SFA Control Unit. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • Reference 280-20-180, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Raise”. • Reference 280-20-190, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Lower”. • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

TM4726 (01NOV03)

211-SFA-28

6020 to 6920S tractors 022204

PN=722

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. 211 NOT OK: Diagnostic SFA trouble code is active: GO 29 TO 2.

1.2 Priority diagnostic codes must be processed first.

– – –1/1

2 Calibrate Suspended Front Axle

Mode of operation of the solenoid valves Y10 and Y11 Solenoid 1

Solenoid 2

Responsible for

Y10 open (activated electrically)

Y11 open (activated electrically)

Front axle moves up (hydraulic cylinders extend)

Y10 closed (not activated electrically)

Y11 open (activated electrically)

Front axle moves down (hydraulic cylinders retract)

To test solenoids Y10 and Y11, the suspended front axle must be calibrated. Calibrate suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS.

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for TLS solenoid valve (Y10); see Section 245, Group SFA in the Technical Manual. NOT OK: Calibration was not successful: GO TO 3.

IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check for mechanical defects on solenoid (Y10)

Check if solenoid valve Y10 is stuck in open position: • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

OK: Solenoid Y10 is OK (no mechanical defect): GO TO 4. NOT OK: Repair as required and subsequently calibrate the suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. – – –1/1

4 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-29

6020 to 6920S tractors 022204

PN=723

SFA Diagnostic Trouble Codes

SFA 324052.31 — Low Engine Speed Low (after Engine Start)

211 SFA 30

Diagnostic trouble code SFA 324052.31 is saved when no engine speed is sent to the basic control unit via the CAN BUS for longer than 5 seconds after the engine start. This diagnostic trouble code triggers the

alarm level: “CAUTION”. The SFA receives the engine speed either from the BCU or the ECU via the CAN BUS.

LX25546,00003DD –19–01SEP02–1/1

Diagnostics The following are possible causes: • Stalling the engine causes this diagnostic trouble code. • Defective engine speed sender: – Engine speed sender B01 for tractors without engine control unit or with ECU Level 1 (Lucas/Delphi injection pump): Diagnostic trouble code BCU 000190.02 takes priority. – Engine speed sender B72 for tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump): Diagnostic trouble codes ECU 000636.02, ECU 000636.08, ECU 000636.10, ECU 000637.02, ECU 000637.07, ECU 000637.08 and/or ECU 000637.10 take priority. • Defective engine speed sender (B01) line connections (lead 531 or 325). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-30

6020 to 6920S tractors 022204

PN=724

SFA Diagnostic Trouble Codes 2 Check Engine Speed Sender

OK: • Diagnosis completed.

Tractors without ECU or with ECU Level 1 (Lucas/Delphi injection pump): Access address BCU 03: BCU 03 –– Status, Engine Speed Sender (B01)—Specification No signal detected (engine OFF):— Status ....................................................................................................................... X0XX Sender signal received (engine running):—Status ...................................................................................................... X1XX Tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump): • Access address ECU 12: ECU 12 –– Speed, Crankshaft Speed Sender (B72)—Specification Engine speed:—rpm ............................................................... between fast and slow idle

• Type of error indicates a loose contact, GO TO: Circuit/harness test for engine speed sender (B01); see Section 245, Group BCU in the Technical manual. NOT OK: Tractors without engine control unit or with Level 1 ECU: Check engine speed sender, GO TO: Circuit/harness test for engine speed sender (B01); see Section 245, Group BCU in the Technical manual. • Tractors with Level 4, Level 11 or Level 12 ECUs: Process ECU diagnostic trouble codes/check sender circuit (refer to corresponding CTM).

– – –1/1

SFA 324053.31 — Low Engine Speed (During Operation)

Diagnostic trouble code SFA 324053.31 is saved when no engine speed is sent to the basic control unit via the CAN BUS for longer than 5 seconds while the tractor is in operation (ground speed exists). This

diagnostic trouble code triggers the alarm level: “CAUTION”. The SFA receives the engine speed either from the BCU or the ECU via the CAN BUS.

LX25546,00003DE –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-31

6020 to 6920S tractors 022204

PN=725

211 SFA 31

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 SFA 32

• Stalling the engine causes this diagnostic trouble code. • Defective engine speed sender: – Engine speed sender B01 for tractors without engine control unit or with ECU Level 1 (Lucas/Delphi injection pump): Diagnostic trouble code BCU 000190.02 takes priority. – Engine speed sender B72 for tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump): Diagnostic trouble codes ECU 000636.02, ECU 000636.08, ECU 000636.10, ECU 000637.02, ECU 000637.07, ECU 000637.08 and/or ECU 000637.10 take priority. • Defective engine speed sender (B01) line connections (lead 531 or 325). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-32

6020 to 6920S tractors 022204

PN=726

SFA Diagnostic Trouble Codes 2 Check Engine Speed Sender

OK: • Diagnosis completed.

Tractors without ECU or with ECU Level 1 (Lucas/Delphi injection pump): Access address BCU 03: BCU 03 –– Status, Engine Speed Sender (B01)—Specification No signal detected (engine OFF):— Status ....................................................................................................................... X0XX Sender signal received (engine running):—Status ...................................................................................................... X1XX Tractors with ECU Level 4 (Bosch VP44 injection pump), Level 11 (HPCR fuel system) or Level 12 (DE10 injection pump): • Access address ECU 12: ECU 12 –– Speed, Crankshaft Speed Sender (B72)—Specification Engine speed:—rpm ............................................................... between fast and slow idle

• Type of error indicates a loose contact, GO TO: Circuit/harness test for engine speed sender (B01); see Section 245, Group BCU in the Technical manual. NOT OK: Tractors without engine control unit or with Level 1 ECU: Check engine speed sender, GO TO: Circuit/harness test for engine speed sender (B01); see Section 245, Group BCU in the Technical manual. • Tractors with Level 4, Level 11 or Level 12 ECUs: Process ECU diagnostic trouble codes/check sender circuit (refer to corresponding CTM).

– – –1/1

SFA 324060.31 — No Axle Movement During Calibration Although Command Was Given

Diagnostic trouble code SFA 324060.31 is saved when the control unit does not register any axle movement via the position sensor - within 80 seconds during the

calibration of the suspended front axle. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003DF –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-33

6020 to 6920S tractors 022204

PN=727

211 SFA 33

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 SFA 34

• Circuit fault in solenoid circuit (Y10 or Y11) additionally generates diagnostic trouble codes SFA 324044.04, SFA 324045.05, SFA 324046.04 or SFA 324047.05. Priority diagnostic trouble codes must be processed first. • Mechanical defect at solenoid Y11 (stuck in closed position). • Defective control block (valves in control block). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-140, Front-Wheel Drive Axle with TLS—SFA Control Unit. • Reference 280-20-180, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Raise”. • Reference 280-20-190, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Lower”. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-34

6020 to 6920S tractors 022204

PN=728

SFA Diagnostic Trouble Codes 2 Calibrate Suspended Front Axle

Mode of operation of the solenoid valves Y10 and Y11 Solenoid 1

Solenoid 2

Responsible for

Y10 open (activated electrically)

Y11 open (activated electrically)

Front axle moves up (hydraulic cylinders extend)

Y10 closed (not activated electrically)

Y11 open (activated electrically)

Front axle moves down (hydraulic cylinders retract)

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: Calibration was not successful: GO TO 4.

To test solenoids Y10 and Y11, the suspended front axle must be calibrated. Calibrate suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check Circuit of Solenoid Valves (Y10 and Y11)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

• Circuit test for solenoid valve 1 (Y10); see Section 245, Group SFA in the Technical Manual. • Circuit test for solenoid valve 2 (Y11); see Section 245, Group SFA in the Technical Manual.

– – –1/1

4 Checking for mechanical defects at the valves in the control block

Carry out the following checks: • Check for mechanical defects at solenoid Y11 (stuck in closed position). • Check for mechanical defects at the valves in the control block. For more detailed information, see: • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

OK: If there are no mechanical defects: Check the hydraulic circuit, GO TO 5. NOT OK: Repair as required and subsequently calibrate the suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. – – –1/1

5 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-35

6020 to 6920S tractors 022204

PN=729

211 SFA 35

SFA Diagnostic Trouble Codes

SFA 324061.31 — No Axle Movement During Operation Although Command Was Given

211 SFA 36

Diagnostic trouble code SFA 324061.31 is saved when the control unit does not register any axle movement via the position sensor - within 60 seconds during

operation (engine speed exists), although the control unit ordered an axle movement. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E0 –19–01SEP02–1/1

Diagnostics The following are possible causes: • Circuit fault in solenoid circuit (Y10 or Y11) additionally generates diagnostic trouble codes SFA 324044.04, SFA 324045.05, SFA 324046.04 or SFA 324047.05. These diagnostic trouble codes take priority. • Mechanical defect at solenoid Y11 (stuck in closed position). • Defective control block (valves in control block). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-140, Front-Wheel Drive Axle with TLS—SFA Control Unit. • Reference 280-20-180, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Raise”. • Reference 280-20-190, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Lower”. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

TM4726 (01NOV03)

211-SFA-36

6020 to 6920S tractors 022204

PN=730

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. 211 NOT OK: Diagnostic SFA trouble code is active: GO 37 TO 2.

1.2 Priority diagnostic codes must be processed first.

– – –1/1

2 Calibrate Suspended Front Axle

Mode of operation of the solenoid valves Y10 and Y11 Solenoid 1

Solenoid 2

Responsible for

Y10 open (activated electrically)

Y11 open (activated electrically)

Front axle moves up (hydraulic cylinders extend)

Y10 closed (not activated electrically)

Y11 open (activated electrically)

Front axle moves down (hydraulic cylinders retract)

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: Calibration was not successful: GO TO 4.

To test solenoids Y10 and Y11, the suspended front axle must be calibrated. Calibrate suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check Circuit of Solenoid Valves (Y10 and Y11)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

• Circuit test for solenoid valve 1 (Y10); see Section 245, Group SFA in the Technical Manual. • Circuit test for solenoid valve 2 (Y11); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-37

6020 to 6920S tractors 022204

PN=731

SFA Diagnostic Trouble Codes 4 Checking for mechanical defects at the valves in the control block

Carry out the following checks: • Check for mechanical defects at solenoid Y11 (stuck in closed position). • Check for mechanical defects at the valves in the control block. For more detailed information, see:

211 SFA 38

• “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

OK: If there are no mechanical defects: Check the hydraulic circuit, GO TO 5. NOT OK: Repair as required and subsequently calibrate the suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. – – –1/1

5 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

SFA 324062.31 — No Axle Movement During Travel Although Command Was Given

Diagnostic trouble code SFA 324062.31 is saved when the control unit does not register any axle movement via the position sensor - within 60 seconds during travel (ground speed more than 10 km/h / 6.2 mph),

although the control unit ordered an axle movement. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E1 –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-38

6020 to 6920S tractors 022204

PN=732

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • Circuit fault in solenoid circuit (Y10 or Y11) additionally generates diagnostic trouble codes SFA 324044.04, SFA 324045.05, SFA 324046.04 or SFA 324047.05. These diagnostic trouble codes take priority. • Mechanical defect at solenoid Y11 (stuck in closed position). • Defective control block (valves in control block). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-140, Front-Wheel Drive Axle with TLS—SFA Control Unit. • Reference 280-20-180, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Raise”. • Reference 280-20-190, Front-Wheel Drive Axle with TLS—Hydraulic Circuit Schematic, Level Control “Lower”. • Reference 280-20-150, Front-Wheel Drive Axle with TLS—Control Block, Exploded View • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-39

6020 to 6920S tractors 022204

PN=733

211 SFA 39

SFA Diagnostic Trouble Codes 2 Calibrate Suspended Front Axle

211 SFA 40

Mode of operation of the solenoid valves Y10 and Y11 Solenoid 1

Solenoid 2

Responsible for

Y10 open (activated electrically)

Y11 open (activated electrically)

Front axle moves up (hydraulic cylinders extend)

Y10 closed (not activated electrically)

Y11 open (activated electrically)

Front axle moves down (hydraulic cylinders retract)

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: Calibration was not successful: GO TO 4.

To test solenoids Y10 and Y11, the suspended front axle must be calibrated. Calibrate suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check Circuit of Solenoid Valves (Y10 and Y11)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

• Circuit test for solenoid valve 1 (Y10); see Section 245, Group SFA in the Technical Manual. • Circuit test for solenoid valve 2 (Y11); see Section 245, Group SFA in the Technical Manual.

– – –1/1

4 Checking for mechanical defects at the valves in the control block

Carry out the following checks: • Check for mechanical defects at solenoid Y11 (stuck in closed position). • Check for mechanical defects at the valves in the control block. For more detailed information, see: • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Valves in the Control Block” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

OK: If there are no mechanical defects: Check the hydraulic circuit, GO TO 5. NOT OK: Repair as required and subsequently calibrate the suspended front axle: See Reference 245-SFA-001, Calibration and Input Addresses, Front-Wheel Drive Axle with TLS. – – –1/1

5 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-40

6020 to 6920S tractors 022204

PN=734

SFA Diagnostic Trouble Codes

SFA 324063.31 — No Cab Movement During Calibration Although Command Was Given

Diagnostic trouble code SFA 324063.31 is saved when the control unit does not register any cab movement via the position sensor - within 80 seconds during the

calibration of the cab suspension. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 41

LX25546,00003E2 –19–16DEC03–1/1

Diagnostics The following are possible causes: • A circuit fault in the solenoid circuit (Y42 or Y43) is generating other diagnostic trouble codes (SFA 324040.04, SFA 324041.05, SFA 324042.04 or SFA 324043.05). Priority diagnostic trouble codes must be processed first. • Mechanical defect at solenoid Y42 or Y43 (stuck in closed position). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SFA-200, Theory of Operation (SFA Control Unit): • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components. • Reference 290-20-090, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Raising”. • Reference 290-20-095, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Lowering”.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-41

6020 to 6920S tractors 022204

PN=735

SFA Diagnostic Trouble Codes 2 Calibrating the suspended cab

211 SFA 42

Mode of operation of the solenoid valves Y42 and Y43 Solenoid 1

Solenoid 2

Responsible for

Y42 open (activated electrically)

Y43 closed (not activated electrically)

Cab moves down (hydraulic cylinders retract)

Y42 closed (not activated electrically)

Y43 open (activated electrically)

Cab moves up (hydraulic cylinders extend)

To test solenoids Y42 and Y43, the suspended cab must be calibrated.

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: Calibration was not successful: GO TO 4.

Calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check Circuit of Solenoid Valves (Y42 and Y43)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

• Circuit/harness test for cab solenoid valve (Y42); see Section 245, Group SFA in the Technical Manual. • Circuit/harness test for cab solenoid valve (Y43); see Section 245, Group SFA in the Technical Manual.

– – –1/1

4 Checking for mechanical defects at the valves in the control block

Carry out the following checks: • Check for mechanical defects at solenoid Y42 (stuck in closed position). • Check for mechanical defects at solenoid Y43 (stuck in closed position). • Check for mechanical defects at the valves in the control block. For more detailed information, see Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control block, components.

OK: If there are no mechanical defects: Check the hydraulic circuit, GO TO 5. NOT OK: Repair as required and subsequently calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. – – –1/1

5 Checking the hydraulic circuit

Check the hydraulic circuit. See Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-42

6020 to 6920S tractors 022204

PN=736

SFA Diagnostic Trouble Codes

SFA 324064.31 — No Cab Movement During Operation Although Command Was Given

Diagnostic trouble code SFA 324064.31 is saved when the control unit does not register any cab movement via the position sensor - within 60 seconds during

operation (engine speed exists), although the control unit ordered a cab movement. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E3 –19–01APR02–1/1

Diagnostics The following are possible causes: • A circuit fault in the solenoid circuit (Y42 or Y43) is generating other diagnostic trouble codes (SFA 324040.04, SFA 324041.05, SFA 324042.04 or SFA 324043.05). These diagnostic trouble codes take priority. • Mechanical defect at solenoid Y42 or Y43 (stuck in closed position). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SFA-200, Theory of Operation (SFA Control Unit): • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components. • Reference 290-20-090, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Raising”. • Reference 290-20-095, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Lowering”.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-43

6020 to 6920S tractors 022204

PN=737

211 SFA 43

SFA Diagnostic Trouble Codes 2 Calibrating the suspended cab

211 SFA 44

Mode of operation of the solenoid valves Y42 and Y43 Solenoid 1

Solenoid 2

Responsible for

Y42 open (activated electrically)

Y43 closed (not activated electrically)

Cab moves down (hydraulic cylinders retract)

Y42 closed (not activated electrically)

Y43 open (activated electrically)

Cab moves up (hydraulic cylinders extend)

To test solenoids Y42 and Y43, the suspended cab must be calibrated.

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: Calibration was not successful: GO TO 4.

Calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check Circuit of Solenoid Valves (Y42 and Y43)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

• Circuit/harness test for cab solenoid valve (Y42); see Section 245, Group SFA in the Technical Manual. • Circuit/harness test for cab solenoid valve (Y43); see Section 245, Group SFA in the Technical Manual.

– – –1/1

4 Checking for mechanical defects at the valves in the control block

Carry out the following checks: • Check for mechanical defects at solenoid Y42 (stuck in closed position). • Check for mechanical defects at solenoid Y43 (stuck in closed position). • Check for mechanical defects at the valves in the control block. For more detailed information, see Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control block, components.

OK: If there are no mechanical defects: Check the hydraulic circuit, GO TO 5. NOT OK: Repair as required and subsequently calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. – – –1/1

5 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-44

6020 to 6920S tractors 022204

PN=738

SFA Diagnostic Trouble Codes

SFA 324065.31 — No Cab Movement During Travel Although Command Was Given

Diagnostic trouble code SFA 324065.31 is saved when the control unit does not register any cab movement via the position sensor - within 60 seconds during travel (ground speed more than 10 km/h / 6.2 mph),

although the control unit ordered a cab movement. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 SFA 45

LX25546,00003E4 –19–01APR02–1/1

Diagnostics The following are possible causes: • A circuit fault in the solenoid circuit (Y42 or Y43) is generating other diagnostic trouble codes (SFA 324040.04, SFA 324041.05, SFA 324042.04 or SFA 324043.05). These diagnostic trouble codes take priority. • Mechanical defect at solenoid Y42 or Y43 (stuck in closed position). • Hydraulic malfunction. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SFA-200, Theory of Operation (SFA Control Unit): • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control Block, Components. • Reference 290-20-090, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Raising”. • Reference 290-20-095, Hydro-pneumatic Cab Suspension — Hydraulic Diagram “Lowering”.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-45

6020 to 6920S tractors 022204

PN=739

SFA Diagnostic Trouble Codes 2 Calibrating the suspended cab

211 SFA 46

Mode of operation of the solenoid valves Y42 and Y43 Solenoid 1

Solenoid 2

Responsible for

Y42 open (activated electrically)

Y43 closed (not activated electrically)

Cab moves down (hydraulic cylinders retract)

Y42 closed (not activated electrically)

Y43 open (activated electrically)

Cab moves up (hydraulic cylinders extend)

To test solenoids Y42 and Y43, the suspended cab must be calibrated.

OK: • Calibration was successful: Diagnosis completed. • Type of error indicates a loose contact: GO TO 3. NOT OK: Calibration was not successful: GO TO 4.

Calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. IMPORTANT: If errors occur during the calibration, the calibration is interrupted and several diagnostic trouble codes are saved. These diagnostic trouble codes take priority.

– – –1/1

3 Check Circuit of Solenoid Valves (Y42 and Y43)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

• Circuit/harness test for cab solenoid valve (Y42); see Section 245, Group SFA in the Technical Manual. • Circuit/harness test for cab solenoid valve (Y43); see Section 245, Group SFA in the Technical Manual.

– – –1/1

4 Checking for mechanical defects at the valves in the control block

Carry out the following checks: • Check for mechanical defects at solenoid Y42 (stuck in closed position). • Check for mechanical defects at solenoid Y43 (stuck in closed position). • Check for mechanical defects at the valves in the control block. For more detailed information, see Reference 290-20-085, Hydro-Pneumatic Cab Suspension — Control block, components.

OK: If there are no mechanical defects: Check the hydraulic circuit, GO TO 5. NOT OK: Repair as required and subsequently calibrate the suspended cab: See Reference 245-SFA-002, Calibration and Input Addresses, Hydraulic Cab Suspension. – – –1/1

5 Checking the hydraulic circuit

Reference 270-15-012, Checking the PFC Hydraulic System.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SFA-46

6020 to 6920S tractors 022204

PN=740

SFA Diagnostic Trouble Codes

SFA 324066.03 — Power Supply to TLS Position Sensor, Shorted Circuit

Diagnostic trouble code SFA 324066.03 is saved when a TLS position sensor supply voltage above 5.25 volts is measured at the control unit. This indicates that the

position sensor circuit is shorted (battery voltage). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E5 –19–01APR02–1/1

Diagnostics The following are possible causes: • Positive lead (cable 703) of the 5-volt power supply defective. – Short circuit (battery voltage). • Defective components (potentiometer) in the 5-volt power supply circuit. • Internal problem in the SFA. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-47

6020 to 6920S tractors 022204

PN=741

211 SFA 47

SFA Diagnostic Trouble Codes 2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address SFA 10: SFA 10 –– Voltage, 5-volt power supply for SFA components—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

211 SFA 48

• Type of error indicates a loose contact, GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual. NOT OK: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

– – –1/1

SFA 324067.04 — Power Supply to TLS Position Sensor, Grounded or Open Circuit

Diagnostic trouble code SFA 324067.04 is saved when a TLS position sensor supply voltage below 4.75 volts is measured at the control unit. This indicates that the

position sensor circuit is open or grounded. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E6 –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-48

6020 to 6920S tractors 022204

PN=742

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • Positive lead (cable 703) of the 5-volt power supply defective. – Open circuit. – Short to ground. • Ground lead (cable 710) of the 5-volt supply voltage defective. – Open circuit. • Defective components (potentiometer) in the 5-volt power supply circuit. • Internal problem in the SFA.

211 SFA 49

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-49

6020 to 6920S tractors 022204

PN=743

SFA Diagnostic Trouble Codes 2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address SFA 10: SFA 10 –– Voltage, 5-volt power supply for SFA components—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

211 SFA 50

• Type of error indicates a loose contact, GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual. NOT OK: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

– – –1/1

SFA 324068.13 — TLS Position Sensor, Signal Voltage Too Low During Downward Movement

Diagnostic trouble code SFA 324068.13 is saved when the control unit measures a voltage below 0.25 volts at the signal input of the TLS position sensor during the downward movement of the front axle. This indicates that the position sensor circuit is open or grounded.

The diagnostic trouble code does not automatically indicate that the TLS position sensor is responsible for the malfunction. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E7 –19–16DEC03–1/1

TM4726 (01NOV03)

211-SFA-50

6020 to 6920S tractors 022204

PN=744

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324067.04). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 708). – Open circuit. – Short to ground. • Defective TLS position sensor B53. • Position sensor rod misadjusted. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor. • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-51

6020 to 6920S tractors 022204

PN=745

211 SFA 51

SFA Diagnostic Trouble Codes 2 Checking the signal from position sensor (B53)

Access address SFA 05:

OK: GO TO 3.

SFA 05 –– Status, signal voltage of TLS position sensor (B53)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B53), GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

211 SFA 52

– – –1/1

3 Checking the sensor rod

Check the adjustment of the position sensor (B53) rod, see Reference 280-15-003 Adjusting the Sensor Rod (Position Sensor Linkage).

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual. NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324069.13 — TLS Position Sensor, Signal Voltage Too High (Lowered Fully)

Diagnostic trouble code SFA 324069.13 is saved when the control unit measures a voltage above 2-volt at the signal input of the TLS position sensor while the front axle is in its lowest position. The diagnostic trouble code does not automatically indicate that the TLS

position sensor is responsible for the malfunction. This diagnostic trouble code triggers the alarm level: “CAUTION”. This diagnostic trouble code can only be generated during the calibration.

LX25546,00003E8 –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-52

6020 to 6920S tractors 022204

PN=746

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324066.03). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 708). – Short circuit to 5-volt or 12-volt lead. • Defective TLS position sensor B53. • Position sensor rod misadjusted. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor. • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-53

6020 to 6920S tractors 022204

PN=747

211 SFA 53

SFA Diagnostic Trouble Codes 2 Checking the signal from position sensor (B53)

Access address SFA 05:

OK: GO TO 3.

SFA 05 –– Status, signal voltage of TLS position sensor (B53)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B53), GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

211 SFA 54

– – –1/1

3 Checking the sensor rod

Check the adjustment of the position sensor (B53) rod, see Reference 280-15-003 Adjusting the Sensor Rod (Position Sensor Linkage).

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual. NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324070.13 — TLS Position Sensor, Signal Voltage Too High During Upward Movement

Diagnostic trouble code SFA 324070.13 is saved when the control unit measures a voltage above 4.75 volts at the signal input of the TLS position sensor during the upward movement of the front axle. This indicates that the position sensor circuit is shorted. The diagnostic

trouble code does not automatically indicate that the TLS position sensor is responsible for the malfunction. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003E9 –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-54

6020 to 6920S tractors 022204

PN=748

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324066.03). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 708). – Short circuit to 5-volt or 12-volt lead. • Defective TLS position sensor B53. • Position sensor rod misadjusted. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor. • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-55

6020 to 6920S tractors 022204

PN=749

211 SFA 55

SFA Diagnostic Trouble Codes 2 Checking the signal from position sensor (B53)

Access address SFA 05:

OK: GO TO 3.

SFA 05 –– Status, signal voltage of TLS position sensor (B53)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B53), GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

211 SFA 56

– – –1/1

3 Checking the sensor rod

Check the adjustment of the position sensor (B53) rod, see Reference 280-15-003 Adjusting the Sensor Rod (Position Sensor Linkage).

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual. NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324071.13 — TLS Position Sensor, Signal Voltage Too Low (Raised Fully)

Diagnostic trouble code SFA 324071.13 is saved when the control unit measures a voltage below 3 volts at the signal input of the TLS position sensor while the front axle is in its highest position. The diagnostic trouble code does not automatically indicate that the

TLS position sensor is responsible for the malfunction. This diagnostic trouble code triggers the alarm level: “CAUTION”. This diagnostic trouble code can only be generated during the calibration.

LX25546,00003EA –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-56

6020 to 6920S tractors 022204

PN=750

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324067.04). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 708). – Open circuit. – Short to ground. • Defective TLS position sensor B53. • Position sensor rod misadjusted. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor. • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-57

6020 to 6920S tractors 022204

PN=751

211 SFA 57

SFA Diagnostic Trouble Codes 2 Checking the signal from position sensor (B53)

Access address SFA 05:

OK: GO TO 3.

SFA 05 –– Status, signal voltage of TLS position sensor (B53)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B53), GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

211 SFA 58

– – –1/1

3 Checking the sensor rod

Check the adjustment of the position sensor (B53) rod, see Reference 280-15-003 Adjusting the Sensor Rod (Position Sensor Linkage).

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual. NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324072.13 — TLS Position Sensor, Signal Voltage Out of Range When in Mid-Position

Diagnostic trouble code SFA 324072.13 is saved when the voltage measured by the control unit at the signal input of the TLS position sensor while the front axle is in the neutral (middle) position is not between 2 and 3 volts. The diagnostic trouble code does not

automatically indicate that the TLS position sensor is responsible for the malfunction. This diagnostic trouble code triggers the alarm level: “CAUTION”. This diagnostic trouble code can only be generated during the calibration.

LX25546,00003EB –19–01SEP02–1/1

TM4726 (01NOV03)

211-SFA-58

6020 to 6920S tractors 022204

PN=752

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • Priority diagnostic trouble codes SFA 324069.13 and SFA 324071.13 must be processed first. • A problem in the 5-volt power supply circuit is generating other priority diagnostic trouble codes (SFA 324066.03 or SFA 324067.04). These diagnostic trouble codes take priority. • Position sensor rod misadjusted. • Defective TLS position sensor B53. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 280-20-100, Front-Wheel Drive Axle with TLS — Components. • Reference 280-20-110, Front-Wheel Drive Axle with TLS — Operation. • Reference 280-20-130, Front-Wheel Drive Axle with TLS — Position Sensor. • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 25 (for 6020 to 6620 tractors). • “Reconditioning the Position Sensor” in the Repair Manual, Section 80, Group 20 (for 6820 and 6920 tractors).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the signal from position sensor (B53)

Access address SFA 05:

OK: GO TO 3.

SFA 05 –– Status, signal voltage of TLS position sensor (B53)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B53), GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-59

6020 to 6920S tractors 022204

PN=753

211 SFA 59

SFA Diagnostic Trouble Codes 3 Checking the sensor rod

OK: • Diagnosis completed.

Check the adjustment of the position sensor (B53) rod, see Reference 280-15-003 Adjusting the Sensor Rod (Position Sensor Linkage).

• Type of error indicates a loose contact: GO TO: Circuit/harness test for TLS position sensor (B53); see Section 245, Group SFA in the Technical Manual.

211 SFA 60

NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324073.03 — Power Supply to Cab Position Sensor, Shorted Circuit

Diagnostic trouble code SFA 324073.03 is saved when the power supply to the cab position sensor is measured at the control unit as being above 5.25 volts.

This indicates that the position sensor circuit is shorted (battery voltage). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003EC –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-60

6020 to 6920S tractors 022204

PN=754

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • Positive lead (cable 703) of the 5-volt power supply defective. – Short circuit (battery voltage). • Defective components (potentiometer) in the 5-volt power supply circuit. • Internal problem in the SFA.

211 SFA 61

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-065, Hydro-pneumatic Cab Suspension — Position Sensor.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-61

6020 to 6920S tractors 022204

PN=755

SFA Diagnostic Trouble Codes 2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address SFA 10: SFA 10 –– Voltage, 5-volt power supply for SFA components—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

211 SFA 62

• Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual. NOT OK: GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

SFA 324074.04 — Power Supply to Cab Position Sensor, Grounded or Open Circuit

Diagnostic trouble code SFA 324074.04 is saved when power supply to the cab position sensor is measured at the control unit as being below 4.75 volts. This

indicates that the position sensor circuit is open or grounded. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003ED –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-62

6020 to 6920S tractors 022204

PN=756

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • Positive lead (cable 703) of the 5-volt power supply defective. – Open circuit. – Short to ground. • Ground lead (cable 710) of the 5-volt supply voltage defective. – Open circuit. • Defective components (potentiometer) in the 5-volt power supply circuit. • Internal problem in the SFA.

211 SFA 63

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-065, Hydro-pneumatic Cab Suspension — Position Sensor.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-63

6020 to 6920S tractors 022204

PN=757

SFA Diagnostic Trouble Codes 2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address SFA 10: SFA 10 –– Voltage, 5-volt power supply for SFA components—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

211 SFA 64

• Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual. NOT OK: GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

SFA 324075.13 — Cab Position Sensor, Signal Voltage Too Low During Downward Movement

Diagnostic trouble code SFA 324075.13 is saved when the control unit measures a voltage below 0.25 volts at the signal input of the cab position sensor during the downward movement of the cab. This indicates that the position sensor circuit is open or grounded. This

diagnostic trouble code does not necessarily mean that the cab position sensor is responsible for the fault. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003EE –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-64

6020 to 6920S tractors 022204

PN=758

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324074.04). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 719). – Open circuit. – Short to ground. • Defective cab position sensor B110. • Position sensor rod misadjusted. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-065, Hydro-pneumatic Cab Suspension — Position Sensor.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the signal from position sensor (B110)

Access address SFA 07:

OK: GO TO 3.

SFA 07 –– Status, signal voltage of cab position sensor (B110)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B110), GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-65

6020 to 6920S tractors 022204

PN=759

211 SFA 65

SFA Diagnostic Trouble Codes 3 Checking the sensor rod

Check the setting of the rod of position sensor B110; see Reference 290-15-120, Hydro-pneumatic Cab Suspension — Adjusting the Sensor Rod (Position Sensor Linkage) at Section 290, Group 15 in the Technical Manual.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

211 SFA 66

NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324076.13 — Cab Position Sensor, Signal Voltage Too High (Lowered Fully)

Diagnostic trouble code SFA 324076.13 is saved when the control unit measures a voltage above 2 volts at the signal input of the cab position sensor while the cab is in its lowest position. This diagnostic trouble code does not necessarily mean that the cab position

sensor is responsible for the fault. This diagnostic trouble code triggers the alarm level: “CAUTION”. This diagnostic trouble code can only be generated during the calibration.

LX25546,00003EF –19–16DEC03–1/1

TM4726 (01NOV03)

211-SFA-66

6020 to 6920S tractors 022204

PN=760

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324073.03). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 719). – Short circuit to 5-volt or 12-volt lead. • Defective ground lead (cable 710). • Defective cab position sensor B110. • Position sensor rod misadjusted (linkage). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-065, Hydro-pneumatic Cab Suspension — Position Sensor.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the signal from position sensor (B110)

Access address SFA 07:

OK: GO TO 3.

SFA 07 –– Status, signal voltage of cab position sensor (B110)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B110), GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-67

6020 to 6920S tractors 022204

PN=761

211 SFA 67

SFA Diagnostic Trouble Codes 3 Checking the sensor rod

Check the setting of the rod of position sensor B110; see Reference 290-15-120, Hydro-pneumatic Cab Suspension — Adjusting the Sensor Rod (Position Sensor Linkage) at Section 290, Group 15 in the Technical Manual.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

211 SFA 68

NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324077.13 — Cab Position Sensor, Signal Voltage Too High During Upward Movement

Diagnostic trouble code SFA 324077.13 is saved when the control unit measures a voltage above 4.75 volts at the signal input of the cab position sensor during the upward movement of the cab. This indicates that the position sensor circuit is shorted. This diagnostic

trouble code does not necessarily mean that the cab position sensor is responsible for the fault. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003F0 –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-68

6020 to 6920S tractors 022204

PN=762

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324073.03). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 719). – Short circuit to 5-volt or 12-volt lead. • Defective cab position sensor B110. • Position sensor rod misadjusted (linkage). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-065, Hydro-pneumatic Cab Suspension — Position Sensor.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the signal from position sensor (B110)

Access address SFA 07:

OK: GO TO 3.

SFA 07 –– Status, signal voltage of cab position sensor (B110)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B110), GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-69

6020 to 6920S tractors 022204

PN=763

211 SFA 69

SFA Diagnostic Trouble Codes 3 Checking the sensor rod

Check the setting of the rod of position sensor B110; see Reference 290-15-120, Hydro-pneumatic Cab Suspension — Adjusting the Sensor Rod (Position Sensor Linkage) at Section 290, Group 15 in the Technical Manual.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

211 SFA 70

NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324078.13 — Cab Position Sensor, Signal Voltage Too Low (Raised Fully)

Diagnostic trouble code SFA 324078.13 is saved when the control unit measures a voltage below 3 volts at the signal input of the cab position sensor while the cab is in its highest position. This diagnostic trouble code does not necessarily mean that the cab position

sensor is responsible for the fault. This diagnostic trouble code triggers the alarm level: “CAUTION”. This diagnostic trouble code can only be generated during the calibration.

LX25546,00003F1 –19–01APR02–1/1

TM4726 (01NOV03)

211-SFA-70

6020 to 6920S tractors 022204

PN=764

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • A problem in the 5-volt power supply circuit is generating another diagnostic trouble code (SFA 324074.04). This diagnostic trouble code takes priority. • Defective line connection in position sensor circuit (lead 719). – Open circuit. – Short to ground. • Defective cab position sensor B110. • Position sensor rod misadjusted (linkage). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 290-20-050, Hydro-pneumatic Cab Suspension — Components. • Reference 290-20-055, Hydro-pneumatic Cab Suspension — Operation. • Reference 290-20-065, Hydro-pneumatic Cab Suspension — Position Sensor.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the signal from position sensor (B110)

Access address SFA 07:

OK: GO TO 3.

SFA 07 –– Status, signal voltage of cab position sensor (B110)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B110), GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-SFA-71

6020 to 6920S tractors 022204

PN=765

211 SFA 71

SFA Diagnostic Trouble Codes 3 Checking the sensor rod

Check the setting of the rod of position sensor B110; see Reference 290-15-120, Hydro-pneumatic Cab Suspension — Adjusting the Sensor Rod (Position Sensor Linkage) at Section 290, Group 15 in the Technical Manual.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

211 SFA 72

NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

SFA 324079.13 — Cab Position Sensor, Signal Voltage Out of Range When in Mid-Position

Diagnostic trouble code SFA 324079.13 is saved when the voltage measured by the control unit at the signal input of the cab position sensor while the cab is in the neutral (middle) position is not between 2 and 3 volts. This diagnostic trouble code does not necessarily

mean that the cab position sensor is responsible for the fault. This diagnostic trouble code triggers the alarm level: “CAUTION”. This diagnostic trouble code can only be generated during the calibration.

LX25546,00003F2 –19–01APR02–1/1

Diagnostics The following are possible causes: • Priority diagnostic trouble codes SFA 324076.13 and SFA 324078.13 must be processed first. • A problem in the 5-volt power supply circuit is generating other priority diagnostic trouble codes (SFA 324073.03 or SFA 324074.04). These diagnostic trouble codes take priority. • Position sensor rod misadjusted (linkage). • Defective cab position sensor B110. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

211-SFA-72

6020 to 6920S tractors 022204

PN=766

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic codes must be processed first.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble code has been saved: Diagnosis completed. 211 NOT OK: Diagnostic SFA trouble code is active: GO 73 TO 2.

– – –1/1

2 Checking the signal from position sensor (B110)

Access address SFA 07:

OK: GO TO 3.

SFA 07 –– Status, signal voltage of cab position sensor (B110)—Specification Signal recognized:—Status ......................................................................................... 001

NOT OK: Check the circuit of position sensor (B110), GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual.

– – –1/1

3 Checking the sensor rod

Check the setting of the rod of position sensor B110; see Reference 290-15-120, Hydro-pneumatic Cab Suspension — Adjusting the Sensor Rod (Position Sensor Linkage) at Section 290, Group 15 in the Technical Manual.

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cab position sensor (B110); see Section 245, Group SFA in the Technical Manual. NOT OK: Repair as required, delete diagnostic trouble code and recalibrate SFA.

– – –1/1

TM4726 (01NOV03)

211-SFA-73

6020 to 6920S tractors 022204

PN=767

SFA Diagnostic Trouble Codes

SFA 324080.09 — Engine Control Unit or Basic Control Unit has Stopped Sending Data (Engine Speed)

211 SFA 74

Diagnostic trouble code SFA 324080.09 is saved when there is a problem in transferring data between the ECU/BCU and the control unit for the suspension of the TLS front axle and the cab (SFA). Reception of the

CAN message regarding engine speed is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003F3 –19–16DEC03–1/1

Diagnostics The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29 BIT CAN BUS connection or voltage supply control unit occasionally causes problems with the data transfer at the following control units: – BCU –– Basic control unit (additional diagnostic trouble codes are saved in the BCU). – ECU — Engine control unit (additional diagnostic trouble codes are saved in the ECU). – SFA –– Control unit for the suspension of the TLS front axle and the cab. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU) or engine control unit (ECU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SFA-74

6020 to 6920S tractors 022204

PN=768

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. SFA 75 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: • If the tractor is equipped with a Level 1 ECU (Lucas/Delphi injection pump), GO TO 2. • If tractor is equipped with a Level 4 ECU (Bosch VP44 injection pump), Level 11 ECU (HPCR fuel system) or Level 12 ECU (DE10 injection pump), GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SFA-75

6020 to 6920S tractors 022204

PN=769

SFA Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 SFA 76

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

BCU –– plug X483/1 (W08)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 BCU –– plug X483/2 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts at pin 23 Power supply:—Ground lead 050 ......................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SFA-76

6020 to 6920S tractors 022204

PN=770

SFA Diagnostic Trouble Codes 3 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

211 SFA 77

ECU Level 4 with Bosch VP44 injection pump –– plug X361 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin 19 Positive (lead 032) ................................................................................ 12 volts at pin 23 Ground lead 050 ................................................................................................... at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground lead 050 .................................................................................. at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2 ECU Level 12 (DE10) –– plug X570 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin A2 Positive (lead 032) ................................................................................ 12 volts at pin K1 Positive (lead 992) ................................................................................ 12 volts at pin H1 Ground lead 050 ................................................................................................. at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................ at pin G1 CAN- (lead 935) .................................................................................................. at pin F1 For circuit diagram, see: • Reference 240-10-055, SE23A - Electronic Engine Control (PowrQuad Plus and AutoQuad Transmissions), see DE10 injection pump. • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT Transmissions), see BOSCH VP44 injection pump or HPCR fuel system. For component location and pin arrangement, refer to: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References – – –1/2

TM4726 (01NOV03)

211-SFA-77

6020 to 6920S tractors 022204

PN=771

SFA Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

211 SFA 78

1

With ECU Level 11 (DENSO HPCR) –19– –2/2

TM4726 (01NOV03)

211-SFA-78

6020 to 6920S tractors 022204

PN=772

SFA Diagnostic Trouble Codes 4 Checking the SFA plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

SFA –– plug X485 (W08)—Specification Power supply:—Positive (lead 762) ...................................................... 12 volts at pin 23 Positive (lead 992) ................................................................................ 12 volts at pin 45 Ground lead 050 ................................................................................................... at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 For circuit diagram, see: • Reference 240-10-029, SE20-Front-Wheel Drive Axle with TLS and CSC Cab Suspension. For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) – – –1/1

TM4726 (01NOV03)

211-SFA-79

6020 to 6920S tractors 022204

PN=773

211 SFA 79

SFA Diagnostic Trouble Codes

SFA 324081.09 — Basic Control Unit has Stopped Sending Data (Travel Speed)

211 SFA 80

Diagnostic trouble code SFA 324081.09 is saved when there is a problem in transferring data between the BCU and the control unit for the suspension of the TLS front axle and the cab (SFA). Reception of the CAN message regarding travel speed is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “CAUTION”. On tractors equipped with PowrQuad Plus or AutoQuad transmission, the travel

speed is ascertained by the wheel speed sender B35/B09 and transmitted by the BCU to the SFA via the CAN BUS. On tractors equipped with AutoPowr transmission, the travel speed is ascertained by the transmission output speed sender B63 and sent to the TCU. The TCU transfers this signal (buffered) to the BCU which in turn transfers it to the SFA via the CAN BUS.

LX25546,00003F4 –19–16DEC03–1/1

Diagnostics The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29 BIT CAN BUS connection or voltage supply control unit occasionally causes problems with the data transfer at the following control units: – BCU –– Basic control unit (additional diagnostic trouble codes are saved in the BCU). – SFA –– Control unit for the suspension of the TLS front axle and the cab. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SFA-80

6020 to 6920S tractors 022204

PN=774

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. SFA 81 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2. – – –1/1

TM4726 (01NOV03)

211-SFA-81

6020 to 6920S tractors 022204

PN=775

SFA Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 SFA 82

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

BCU –– plug X483/1 (W08)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 BCU –– plug X483/2 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts at pin 23 Power supply:—Ground lead 050 ......................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) – – –1/1

TM4726 (01NOV03)

211-SFA-82

6020 to 6920S tractors 022204

PN=776

SFA Diagnostic Trouble Codes 3 Checking the SFA plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

SFA –– plug X485 (W08)—Specification Power supply:—Positive (lead 762) ...................................................... 12 volts at pin 23 Positive (lead 992) ................................................................................ 12 volts at pin 45 Ground lead 050 ................................................................................................... at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 For circuit diagram, see: • Reference 240-10-029, SE20-Front-Wheel Drive Axle with TLS and CSC Cab Suspension. For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) – – –1/1

TM4726 (01NOV03)

211-SFA-83

6020 to 6920S tractors 022204

PN=777

211 SFA 83

SFA Diagnostic Trouble Codes

SFA 324082.09 — Engine Control Unit or Basic Control Unit Sends No Data While Tractor Is Moving (Engine Speed)

211 SFA 84

Diagnostic trouble code SFA 324082.09 is saved when there is a problem in transferring data between the ECU/BCU and the control unit for the suspension of the TLS front axle and the cab (SFA) while the tractor is travelling (ground speed exists). Reception of the

CAN message regarding engine speed is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003F5 –19–16DEC03–1/1

Diagnostics The following are possible causes: • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Defective 29 BIT CAN BUS connection or voltage supply control unit occasionally causes problems with the data transfer at the following control units: – BCU –– Basic control unit (additional diagnostic trouble codes are saved in the BCU). – ECU — Engine control unit (additional diagnostic trouble codes are saved in the ECU). – SFA –– Control unit for the suspension of the TLS front axle and the cab. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU) or engine control unit (ECU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SFA-84

6020 to 6920S tractors 022204

PN=778

SFA Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. SFA 85 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: • If the tractor is equipped with a Level 1 ECU (Lucas/Delphi injection pump), GO TO 2. • If tractor is equipped with a Level 4 ECU (Bosch VP44 injection pump), Level 11 ECU (HPCR fuel system) or Level 12 ECU (DE10 injection pump), GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SFA-85

6020 to 6920S tractors 022204

PN=779

SFA Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 SFA 86

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

BCU –– plug X483/1 (W08)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 BCU –– plug X483/2 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts at pin 23 Power supply:—Ground lead 050 ......................................................................... at pin 1 For circuit diagram, see: • Reference 240-10A-051, SE16F - BCU (Speed Sender and Radar). • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm) For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SFA-86

6020 to 6920S tractors 022204

PN=780

SFA Diagnostic Trouble Codes 3 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

211 SFA 87

ECU Level 4 with Bosch VP44 injection pump –– plug X361 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin 19 Positive (lead 032) ................................................................................ 12 volts at pin 23 Ground lead 050 ................................................................................................... at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground lead 050 .................................................................................. at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2 ECU Level 12 (DE10) –– plug X570 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin A2 Positive (lead 032) ................................................................................ 12 volts at pin K1 Positive (lead 992) ................................................................................ 12 volts at pin H1 Ground lead 050 ................................................................................................. at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................ at pin G1 CAN- (lead 935) .................................................................................................. at pin F1 For circuit diagram, see: • Reference 240-10-055, SE23A - Electronic Engine Control (PowrQuad Plus and AutoQuad Transmissions), see DE10 injection pump. • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT Transmissions), see BOSCH VP44 injection pump or HPCR fuel system. For component location and pin arrangement, refer to: • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References – – –1/2

TM4726 (01NOV03)

211-SFA-87

6020 to 6920S tractors 022204

PN=781

SFA Diagnostic Trouble Codes • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

211 SFA 88

1

With ECU Level 11 (DENSO HPCR) –19– –2/2

TM4726 (01NOV03)

211-SFA-88

6020 to 6920S tractors 022204

PN=782

SFA Diagnostic Trouble Codes 4 Checking the SFA plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

SFA –– plug X485 (W08)—Specification Power supply:—Positive (lead 762) ...................................................... 12 volts at pin 23 Positive (lead 992) ................................................................................ 12 volts at pin 45 Ground lead 050 ................................................................................................... at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN- (lead 935) .................................................................................................. at pin 21 For circuit diagram, see: • Reference 240-10-029, SE20-Front-Wheel Drive Axle with TLS and CSC Cab Suspension. For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) – – –1/1

TM4726 (01NOV03)

211-SFA-89

6020 to 6920S tractors 022204

PN=783

211 SFA 89

SFA Diagnostic Trouble Codes

SFA 324106.31 — Control Unit, Internal Fault

211 SFA 90

Diagnostic trouble code SFA 324106.31 is saved when an error occurs in the memory of the control unit for the suspension of the TLS front axle and the cab (SFA). All values in the memory are replaced by the

factory default settings. This might change how the control unit operates. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003F6 –19–01JUL01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the SFA control unit.

– – –1/1

SFA 324240.31 — Control Unit Connected to Wrong Harness Connector

Diagnostic trouble code SFA 324240.31 is saved when the SFA detects an erroneous signal in the circuit of

the control unit identification. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX25546,00003F7 –19–16DEC03–1/1

TM4726 (01NOV03)

211-SFA-90

6020 to 6920S tractors 022204

PN=784

SFA Diagnostic Trouble Codes Diagnostics The following are possible causes: • Wrong control unit connected to connector X485. • Open circuit at lead 714. • Defective SFA.

211 SFA 91

Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SFA-91

6020 to 6920S tractors 022204

PN=785

SFA Diagnostic Trouble Codes 2 Checking the circuit

2.1 - Check the control unit: Check the control unit connected to SFA connector X485 (is the correct control unit connected?).

OK: If the correct control unit is connected, GO TO 2.2. NOT OK: Connect the correct control unit to connector X485 and test its functionality.

211 SFA 92

• Ignition OFF.

OK: Replace the control unit and carry out an operational test.

SFA –– plug X485 (W08)—Specification Check the control unit’s identification circuit:—Continuity ..................................................... between pins 18 and 37 (lead 714)

NOT OK: Recondition as required and carry out an operational test.

2.2 - Check the connecting lead:

For circuit diagram, see: • Reference 240-10-029, SE20-Front-Wheel Drive Axle with TLS and CSC Cab Suspension. For component location and pin arrangement, refer to: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-701, Wiring Harnesses for 6120 and 6220 Tractors from Serial No. 398791 — Summary of References • Reference 240-26-702, Wiring Harnesses for 6320, 6420, 6420S, 6520, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Plus Transmission from Serial No. 3987911 — Summary of References. • Reference 240-26-703, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission from Serial No. 398791 — Summary of References.

1

With ECU Level 11 (DENSO HPCR) – – –1/1

TM4726 (01NOV03)

211-SFA-92

6020 to 6920S tractors 022204

PN=786

Group SIC

SIC Diagnostic Trouble Codes SIC 000629.12 — Control Unit, Internal Error

Diagnostic trouble code SIC 000629.12 is saved when the controller for electrically actuated SCVs (SIC)

recognizes a software problem. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000415 –19–01SEP01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the controller (SIC).

– – –1/1

SIC 000639.12 — Control Unit, Internal Error

Diagnostic trouble code SIC 000639.12 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the E-ICV and/or E-SCV

is not operating properly. Diagnostic trouble code SIC 000639.12 is saved when the controller for electrically actuated SCVs (SIC) recognizes a software problem. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000416 –19–01SEP01–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-SIC-1

6020 to 6920S tractors 022204

PN=787

211 SIC 1

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

211 SIC 2

OK: Diagnostic trouble code is not active (and E-ICV and/or E-SCV is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active (and E-ICV and/or E-SCV is not operating properly): • No other SIC diagnostic trouble codes are saved: Replace the controller (SIC). • Other SIC diagnostic trouble codes ARE saved: SIC diagnostic trouble codes must be processed first.

– – –1/1

SIC 000639.13 — 29-bit CAN BUS, High Error Rate

Diagnostic trouble code SIC 000639.13 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the E-ICV and/or E-SCV

is not operating properly. Diagnostic trouble code SIC 000639.13 is saved when the controller for electrically actuated SCVs (SIC) recognizes a high error rate in the incoming CAN BUS messages. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000417 –19–01SEP01–1/1

TM4726 (01NOV03)

211-SIC-2

6020 to 6920S tractors 022204

PN=788

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A general problem with the 29-bit CAN BUS (diagnostic trouble codes SIC 334001.09, SIC 334002.09 and SIC 334003.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Faulty CAN BUS screen (diagnostic trouble codes SIC 334001.09, SIC 334002.09 and SIC 334003.09 are saved as well). – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Screen lines +930 and/or -932 defective. – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and E-ICV and/or E-SCV is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active (and E-ICV and/or E-SCV is not operating properly): Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

SIC 000639.19 — 29-bit CAN BUS, Very High Error Rate

Diagnostic trouble code SIC 000639.19 does not necessarily have any real meaning. It is often stored by accident when the main switch (ignition key) is switched on or off too quickly. Pay attention to this diagnostic trouble code only if the E-ICV and/or E-SCV

is not operating properly. Diagnostic trouble code SIC 000639.19 is saved when the controller for electrically actuated SCVs (SIC) recognizes a high error rate in the incoming CAN BUS messages. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000418 –19–01SEP01–1/1

TM4726 (01NOV03)

211-SIC-3

6020 to 6920S tractors 022204

PN=789

211 SIC 3

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 SIC 4

• A general problem with the 29-bit CAN BUS (diagnostic trouble codes SIC 334001.09, SIC 334002.09 and SIC 334003.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • Faulty CAN BUS screen (diagnostic trouble codes SIC 334001.09, SIC 334002.09 and SIC 334003.09 are saved as well). – Defective fuse F04/13 (voltage supply for 29-bit CAN BUS screen). – Terminating resistors A14 and/or A15 defective. – Screen lines +930 and/or -932 defective. – Voltage supply line (cable 994 and 050) of the screen lines defective. – Defective/bad voltage supply ground connection via ground point XGND4 to XGND43. • 29-bit CAN BUS malfunction caused by strong electromagnetic influences. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active (and E-ICV and/or E-SCV is operating properly): Diagnosis completed. NOT OK: Diagnostic trouble code is active (and E-ICV and/or E-SCV is not operating properly): Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

SIC 334001.09 — ECU or BCU is/are Not Sending Any Data (Engine Speed)

Diagnostic trouble code SIC 334001.09 is saved when there is a problem with the transference of data between the ECU/BCU and the control unit for electrically actuated SCVs. Reception of CAN messages that are required for operation of the SIC is intermittent or non-existent (intermittent reception could

be due to a loose wire). The diagnostic code triggers the alarm level: “Information”. If diagnostic trouble codes SIC 334002.09 and SIC 334003.09 are saved as well, this indicates a general problem with the 29-bit CAN BUS. Diagnostic trouble code BIF 000639.02 takes priority.

LX25546,0000419 –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-4

6020 to 6920S tractors 022204

PN=790

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A general problem with the 29-bit CAN BUS (diagnostic trouble codes SIC 334002.09 and SIC 334003.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • A fault in the ECU’s monitoring circuit (faulty crankshaft speed sender B72). – ECU diagnostic trouble codes take priority. • A fault in the BCU’s monitoring circuit (faulty engine speed sender B01). – BCU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the basic control unit or engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09, UIC 305056.09, EPC 306121.09, EPC 306122.09, SFA 324080.09, SFA 324082.09 and/or TCU 304160.09). – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (SFA 324081.09, UIC 305059.09 and/or EPC 306120.09). • Defective 29-bit CAN BUS connection or power supply to the E-SCV/E-ICV control unit (SIC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit (ECU) or basic control unit (BCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-BCU-101, Operation of the Basic Control Unit (Basic Functions). • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs • Reference 245-05-003, Description of Diagnostic Trouble Codes. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-5

6020 to 6920S tractors 022204

PN=791

211 SIC 5

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC 6

1.2 ECU or BCU diagnostic trouble codes take priority.

1.3 Are other diagnostic trouble codes (SIC 334002.09 and SIC 334003.09) saved that indicate a general problem in the 29-bit CAN BUS?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no ECU or BCU diagnostic trouble codes exist: GO TO 1.3

OK: Type of error indicates a loose contact: • If tractor is equipped with ECU Level 4 (BOSCH VP44 injection pump), GO TO 2. • If tractor is equipped with ECU Level 1 (LUCAS/Delphi injection pump), GO TO 3. NOT OK: Other diagnostic trouble codes are saved that indicate a general problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority.

– – –1/1

TM4726 (01NOV03)

211-SIC-6

6020 to 6920S tractors 022204

PN=792

SIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test. 211 SIC 7

ECU Level 4 with Bosch VP44 injection pump –– plug X361 (W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin 19 Positive (lead 032) ................................................................................ 12 volts at pin 23 Ground (lead 050) ................................................................................................. at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN+ (lead 935) ................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram see: • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions). For component location and pin arrangement, see wiring harnesses W15 for ECU Level 4 or Level 11 • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-SIC-7

6020 to 6920S tractors 022204

PN=793

SIC Diagnostic Trouble Codes 3 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 SIC 8

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test.

BCU – plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts at pin 23 Ground (lead 050) ................................................................................................. at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN+ (lead 935) ................................................................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at pin 20 Lead 932+ ........................................................................................................... at pin 43 For circuit diagram see: • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm). For component location and pin arrangement see cab wiring harness W08. • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-501, Wiring Harnesses for tractors with PowrQuad Plus or AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-8

6020 to 6920S tractors 022204

PN=794

SIC Diagnostic Trouble Codes 4 Checking the SIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Repair as needed and carry out an operational test.

SIC –– plug X456 (W16)—Specification Power supply:—Positive, ELX (lead 562) ............................................. 12 volts at pin 23 Positive, battery (lead 662) ..................................................................... 12 volts at pin 2 Ground (lead 050) ................................................................................................. at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin 44 CAN+ (lead 935) ................................................................................................. at pin 21 For circuit diagram see: • Reference 240-10-030, SE21-Electronic Actuation of SCVs. For component location and pin arrangement see SIC wiring harness W16: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

SIC 334002.09 — BCU Is Not Transmitting Any Data (Engine Operating Hours)

Diagnostic trouble code SIC 334002.09 is stored when there is a problem in transferring data between the basic control unit (BCU) and the control unit for E-SCV/E-ICV. Reception of CAN messages that are required for operation of the SIC is intermittent or non-existent (intermittent reception could be due to a loose wire). The diagnostic trouble code triggers the

alarm level: “Information”. If diagnostic trouble codes SIC 334001.09 and SIC 334003.09 are saved as well, this indicates a general problem with the 29-bit CAN BUS. Diagnostic trouble code BIF 000639.02 takes priority. This diagnostic trouble code only affects the function for auto-deleting the diagnostic trouble codes in the controller (dependent on operating hours).

LX25546,000041A –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-9

6020 to 6920S tractors 022204

PN=795

211 SIC 9

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 SIC 10

• A general problem with the 29-bit CAN BUS (diagnostic trouble codes SIC 334001.09 and SIC 334003.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • A fault in the BCU’s monitoring circuit. – BCU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the basic control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (SFA 324080.09, UIC 305059.09 and/or EPC 306120.09). • Defective 29-bit CAN BUS connection or power supply to the SIC causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU). Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BCU-101, Operation of the Basic Control Unit (Basic Functions). • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BCU diagnostic trouble codes take priority.

1.3 Are other diagnostic trouble codes (SIC 334001.09 and SIC 334003.09) saved that indicate a general problem in the 29-bit CAN BUS?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no BCU diagnostic trouble codes exist: GO TO 1.3

OK: Type of error indicates a loose contact: GO TO 2. NOT OK: Other diagnostic trouble codes are saved that indicate a general problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. – – –1/1

TM4726 (01NOV03)

211-SIC-10

6020 to 6920S tractors 022204

PN=796

SIC Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Repair as needed and carry out an operational test. 211 SIC 11

BCU – plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts at Pin 23 Ground (lead 050) ................................................................................................. at Pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at Pin 44 CAN+ (lead 935) ................................................................................................. at Pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at Pin 20 Lead 932+ ........................................................................................................... at Pin 43 For circuit diagram see: • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm). For component location and pin arrangement see cab wiring harness W08. • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-SIC-11

6020 to 6920S tractors 022204

PN=797

SIC Diagnostic Trouble Codes 3 Checking the SIC plug (29-bit CAN BUS connection and power supply) 211 SIC 12

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Repair as needed and carry out an operational test.

SIC –– plug X456 (W16)—Specification Power supply:—Positive, ELX (lead 562) ............................................. 12 volts at Pin 23 Positive, battery (lead 662) ..................................................................... 12 volts at Pin 2 Ground (lead 050) ................................................................................................. at Pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at Pin 44 CAN+ (lead 935) ................................................................................................. at Pin 21 For circuit diagram see: • Reference 240-10-030, SE21-Electronic Actuation of SCVs. For component location and pin arrangement see SIC wiring harness W16: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

SIC 334003.09 — Transmission Control Unit or BIF is/are Not Sending Any Data (Hydraulic Oil Temperature)

Diagnostic trouble code SIC 334003.09 is saved when there is a problem in transferring data between the transmission control unit (TCU) or basic informator (BIF) and the E-SCV/E-ICV control unit (SIC). Reception of CAN messages that are required for operation of the SIC is intermittent or non-existent (intermittent reception could be due to a loose wire). The diagnostic trouble code triggers the alarm level: “Information”. This diagnostic trouble code is stored if

the SIC does not receive any information about the transmission oil temperature via the CAN BUS. In this case, the SIC uses the last information on the oil temperature received via the CAN BUS. If diagnostic trouble codes SIC 334001.09 and SIC 334002.09 are saved as well, this indicates a general problem with the 29-bit CAN BUS. Diagnostic trouble code BIF 000639.02 takes priority.

LX25546,000041B –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-12

6020 to 6920S tractors 022204

PN=798

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: • A general problem with the 29-bit CAN BUS (diagnostic trouble codes SIC 334001.09 and SIC 334002.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. • A fault in the TCU’s monitoring circuit (faulty oil temperature sender). – TCU diagnostic trouble codes (TCU 304040.03 or TCU 304024.04) take priority. • A fault in the BIF’s monitoring circuit (faulty oil temperature sender B60). – BIF diagnostic trouble codes (BIF 000177.03 or BIF 000177.04) take priority. • Defective 29-bit CAN BUS connection or power supply to the transmission control unit or basic informator causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305190.09 and/or UIC 304054.09). • Defective 29-bit CAN BUS connection or power supply to the E-SCV/E-ICV control unit (SIC) causes an intermittent problem in transferring data. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective transmission control unit (TCU) or basic informator (BIF). Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-BIF-101, Basic Informator - Theory of Operation. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-13

6020 to 6920S tractors 022204

PN=799

211 SIC 13

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 SIC 14

1.2 BCU diagnostic trouble codes take priority.

1.3 Are other diagnostic trouble codes (SIC 334002.09 and SIC 334003.09) saved that indicate a general problem in the 29-bit CAN BUS?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no BCU diagnostic trouble codes exist: GO TO 1.3

OK: Type of error indicates a loose contact: • For tractors with AutoPowr/IVT transmission, GO TO 2.• For tractors with PowrQuad Plus or AutoQuad transmission, GO TO 3. NOT OK: Other diagnostic trouble codes are saved that indicate a general problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority.

– – –1/1

TM4726 (01NOV03)

211-SIC-14

6020 to 6920S tractors 022204

PN=800

SIC Diagnostic Trouble Codes 2 Checking the TCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test. 211 SIC 15

TCU –– Plug X332 (W8)—Specification Power supply:—Positive (lead 572) ...................................................... 12 volts at Pin 45 Positive (lead 052) ............................................................. 12 volts at Pin 23 and Pin 68 Ground (lead 050) ................................................................................ at Pin 1 and Pin 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at Pin 44 CAN+ (lead 935) ................................................................................................. at Pin 21 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... at Pin 20 Lead 932+ ........................................................................................................... at Pin 43 For circuit diagram see: • Reference 240-10-035, SE26-Transmission Control Unit. For component location and pin arrangement see cab wiring harness W08. • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-15

6020 to 6920S tractors 022204

PN=801

SIC Diagnostic Trouble Codes 3 Checking the BIF plug (29-bit CAN BUS connection and power supply) 211 SIC 16

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

OK: GO TO 4.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Repair as needed and carry out an operational test.

BIF –– plug X25 (W08)—Specification Power supply:—Ground (lead 050) ....................................................................... at Pin 3 BIF –– plug X26 (W08)—Specification Power supply:—Positive, ELX (lead 992) ............................................. 12 volts Positive, battery (lead 992) ................................................................... 12 volts 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. CAN+ (lead 935) ................................................................................................. 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... Lead 932+ ...........................................................................................................

at Pin 14 at Pin 10 at Pin 15 at Pin 16 at Pin 18 at Pin 13

For circuit diagram see: • Reference 240-10-004, SE2-Basic Informator For component location and pin arrangement see cab wiring harness W08. • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-SIC-16

6020 to 6920S tractors 022204

PN=802

SIC Diagnostic Trouble Codes 4 Checking the SIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Repair as needed and carry out an operational test.

SIC –– plug X456 (W16)—Specification Power supply:—Positive, ELX (lead 562) ............................................. 12 volts at Pin 23 Positive, battery (lead 662) ..................................................................... 12 volts at Pin 2 Ground (lead 050) ................................................................................................. at Pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at Pin 44 CAN+ (lead 935) ................................................................................................. at Pin 21 For circuit diagram see: • Reference 240-10-030, SE21-Electronic Actuation of SCVs. For component location and pin arrangement see SIC wiring harness W16: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

SIC 334010.01 — Hydraulic Oil Temperature Too Low

Diagnostic trouble code SIC 334010.01 is saved when the controller registers a hydraulic oil temperature less than -25 °C (-13 °F). The diagnostic trouble code triggers the alarm level: “Information”. The function of the E-ICV and E-SCV is temperature-dependent:

• Hydraulic oil colder than -25 °C (-13 °F): E-ICV and E-SCV fail to function. • Hydraulic oil temperature between -15°C and -25°C (5°F and -13°F): E-ICV and E-SCV fail to function or are not operating to their full extent.

LX25546,000041C –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-17

6020 to 6920S tractors 022204

PN=803

211 SIC 17

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 SIC 18

• Hydraulic oil is too cold. • Transmission oil temperature sender is defective (incorrect valid temperature range). – BIF transmission oil temperature sender B60 on tractors with PowrQuad Plus or AutoQuad transmissions. – TCU transmission oil temperature sender on tractors with AutoPowr/IVT transmission. – A problem in the circuit of the BIF transmission oil temperature sender (B60) is causing an additional diagnostic trouble code. Priority diagnostic trouble codes BIF 000177.03 or BIF 000177.04 must be processed first. – A problem in the circuit of the TCU transmission oil temperature sender is causing an additional diagnostic trouble code. Priority diagnostic trouble codes TCU 304024.04 or TCU 304040.03 must be processed first. Additional References: • Electrical Information: Reference 210-15-001, General References - Overview. • Reference 245-BIF-101, Basic Informator - Theory of Operation. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BIF or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active and no priority diagnostic trouble codes exist: Diagnosis completed. NOT OK: Diagnostic trouble code is active: • Tractor is equipped with AutoPowr/IVT transmission: GO TO 2.• Tractor is equipped with PowrQuad Plus or AutoQuad transmissions: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SIC-18

6020 to 6920S tractors 022204

PN=804

SIC Diagnostic Trouble Codes 2 Checking the temperature of the transmission oil

2.1 - Temperature check: • Access address TCU 21: TCU 21 –– Status, transmission oil temperature sender (displayed in °C)— Specification Transmission oil temperature:— Temperature range .................................................... -50°C to +120°C (-58°F to +248°F) Temperature alarm threshold ..................................................................... 101°C (214°F)

OK: TCU temperature reading is equivalent to actual transmission oil temperature. Warm up the hydraulic oil. See Reference 270-15-010. NOT OK: GO TO 2.2.

2.2 - Checking the transmission oil temperature sender at the 16-pin plug of the internal transmission harness:

OK: • Diagnosis completed.

• Ignition OFF.

• Type of error indicates a loose contact: GO TO 4.

• Disconnect plug X482/1 (connecting plug between internal transmission harness and valve block harness W29) and connect test harness KJD10265. • Check resistance at the 16-pin test plug between pin 8 (lead 642) and pin 9 (lead 641):

NOT OK: Repair as needed and carry out an operational test.

Transmission oil temperature sender (resistance)—Specification Temperature-dependent:—Resistance ................. between 900 and 1100 ohms at 25°C (77° F)

– – –1/1

TM4726 (01NOV03)

211-SIC-19

6020 to 6920S tractors 022204

PN=805

211 SIC 19

SIC Diagnostic Trouble Codes 3 Checking transmission oil temperature sender (B60)

3.1 Access address BIF 33 and compare the displayed temperature with the actual temperature of the transmission oil: BIF 33 –– Status, transmission oil temperature sender (B60) in °C—Specification Transmission oil temperature:— Temperature in °C (050 is equivalent to 50 °C) .......................................................................................... between -040 and +105

211 SIC 20

OK: BIF temperature reading is equivalent to actual transmission oil temperature: Warm up the hydraulic oil. See Reference 270-15-010. NOT OK: If the temperature shown on the gauge is unrealistic, GO TO 3.2. OK: • Diagnosis completed.

3.2

NOTE: The values are only correct when the sender is removed from the circuit. Transmission temperature sender (B60) Temperature in °C

Resistance in ohms

Temperature in °C

Resistance in ohms

-40

99301

45

1194

-35

72883

50

979

-30

52586

55

808

-25

38485

60

670

-20

28512

65

559

-15

21386

70

468

-10

16134

75

394

-5

12230

80

333

0

9401

85

283

5

7273

90

241

10

5661

95

207

15

4441

100

178

20

3512

105

153

25

2796

110

133

30

2239

115

115

35

1806

120

100

40

1465

125

88

• Type of error indicates a loose contact: GO TO 5. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SIC-20

6020 to 6920S tractors 022204

PN=806

SIC Diagnostic Trouble Codes 4 Checking the circuit of the transmission oil temperature sender

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-035, SE26-Transmission Control Unit (TCU). For component location and pin arrangement see cab wiring harness W08 and valve block wiring harness W29. • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

5 Checking the circuit of transmission oil temperature sender (B60)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-004, SE2-Basic Informator. For component location and pin arrangement see cab wiring harness W08, cowl wiring harness W09, and transmission wiring harness (front) W28. • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-SIC-21

6020 to 6920S tractors 022204

PN=807

211 SIC 21

SIC Diagnostic Trouble Codes

SIC 334028.14 — Control Unit Not Calibrated

211 SIC 22

Diagnostic trouble code SIC 334028.14 is saved if one or more of the controller’s functions is activated but not yet calibrated. The diagnostic trouble code triggers the alarm level: “Information”. A calibration memory fault may also be the cause of this diagnostic trouble code.

For this reason, this diagnostic trouble code cannot always be deleted at diagnostic address SIC 01. The diagnostic trouble code stops appearing once calibration has been completed successfully.

LX25546,000041D –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • The controller has not been calibrated. • An axis (or axes) of the E-ICV or E-SCV has been activated, but the axes have not been calibrated. • Calibration memory fault. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

OK: All address inputs are OK: GO TO 2.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Recalibrate the SIC and delete diagnostic trouble code.

1.2 Check E-ICV calibration address SIC 36 and E-SCV calibration addresses SIC 37 and SIC 38 to see whether the desired E-ICV and/or E-SCV functions are correctly activated and de-activated.

– – –1/1

TM4726 (01NOV03)

211-SIC-22

6020 to 6920S tractors 022204

PN=808

SIC Diagnostic Trouble Codes 2 Recalibrating the controller

Access address SIC 20 and recalibrate the controller for electrically actuated SCVs (SIC). See Reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs

OK: Delete diagnostic trouble code and carry out an operational test. If diagnostic trouble code still persists, replace the SIC with a new one, and calibrate the new controller. NOT OK: Replace the SIC with a new one and carry out an operational test. – – –1/1

SIC 334041.31 — E-ICV No.1, Potentiometer at Multi-Function Lever Faulty

Diagnostic trouble code SIC 334041.31 is saved if the signal voltage of the potentiometer for E-ICV function no. 1 is not within the permitted range. This diagnostic

trouble code triggers the alarm level: “Information”. • Multifunction lever direction: Forward and reverse (1st function).

LX26156,0000251 –19–11AUG03–1/1

Diagnostics The following are possible causes: • Defective potentiometer on multi-function lever (function 1). • Defective signal lead (lead 765): – Open, shorted or grounded circuit. • Defective power supply between the SIC and switch/potentiometer on the multi-function lever (function 1): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of independent control valves (E-ICV)” (6120-6620) • “Electrical actuation of independent control valves (E-ICV)” (6820-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-23

6020 to 6920S tractors 022204

PN=809

211 SIC 23

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 SIC 24

– – –1/1

2 Checking the potentiometer for function 1

OK: • Diagnosis completed.

Access address SIC 21: SIC 21 –– Voltage, potentiometer for function 1 (E-ICV)—Specification Multi-function lever in neutral position— Voltage .................................................................................... between 2.8 and 3.2 volts Multi-function lever in forward position— Voltage .................................................................................... between 0.5 and 2.5 volts Multi-function lever in reverse position (entire range, with perceptible resistance)—Voltage ............................................................... between 3.5 and 4.5 volts

• Circuit/harness test for function 1 (E-ICV). Section 245, Group SIC in the Technical manual. NOT OK: Circuit/harness test for function 1 (E-ICV). Section 245, Group SIC in the Technical manual. – – –1/1

SIC 334042.31 — E-ICV No.2, Potentiometer at Multi-Function Lever Faulty

Diagnostic trouble code SIC 334042.31 is saved if the signal voltage of the potentiometer for E-ICV function no. 2 is not within the permitted range. This diagnostic

trouble code triggers the alarm level: “Information”. • Multifunction lever direction: Left and right (2nd function).

LX26156,0000252 –19–11AUG03–1/1

TM4726 (01NOV03)

211-SIC-24

6020 to 6920S tractors 022204

PN=810

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective potentiometer on multi-function lever (function 2). • Defective signal lead (lead 764): – Open, shorted or grounded circuit. • Defective power supply between the SIC and switch/potentiometer on the multi-function lever (function 1): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 25

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of independent control valves (E-ICV)” (6120-6620) • “Electrical actuation of independent control valves (E-ICV)” (6820-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-25

6020 to 6920S tractors 022204

PN=811

SIC Diagnostic Trouble Codes 2 Checking the potentiometer for function 2

211 SIC 26

OK: • Diagnosis completed.

Access address SIC 22: SIC 22 –– Voltage, potentiometer for function 2 (E-ICV)—Specification Multi-function lever in neutral position— Voltage .................................................................................... between 2.8 and 3.2 volts Multi-function lever in right position (entire range, with perceptible resistance)—Voltage ............................................................... between 0.5 and 2.5 volts Multi-function lever in left position (entire range, with perceptible resistance)— Voltage .................................................................................... between 3.5 and 4.5 volts

• If type of error indicates a loose contact, GO TO Circuit/harness test for function 2 (E-ICV). Section 245, Group SIC in the Technical manual. NOT OK: GO TO Circuit/harness test for function 2 (E-ICV). Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334043.31 — E-ICV No.3, Potentiometer at Multi-Function Lever Faulty

Diagnostic trouble code SIC 334053.14 is saved if the signal voltage of the potentiometer for E-ICV function no. 3 is not within the permitted range. This diagnostic

trouble code triggers the alarm level: “Information”. • Rocker switch on multifunction lever: Top and bottom positions (3rd function).

LX26156,0000253 –19–11AUG03–1/1

TM4726 (01NOV03)

211-SIC-26

6020 to 6920S tractors 022204

PN=812

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective potentiometer on multi-function lever (function 3). • Defective signal lead (lead 778): – Open, shorted or grounded circuit. • Defective power supply between the SIC and switch/potentiometer on the multi-function lever (function 1): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 27

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of independent control valves (E-ICV)” (6120-6620) • “Electrical actuation of independent control valves (E-ICV)” (6820-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-27

6020 to 6920S tractors 022204

PN=813

SIC Diagnostic Trouble Codes 2 Checking the potentiometer for function 3

211 SIC 28

OK: • Diagnosis completed.

Access address SIC 23: SIC 23 –– Voltage, potentiometer for function 3 (E-ICV)—Specification Rocker switch on multi-function lever in neutral position (not activated):—Voltage ............................... between 2.8 and 3.2 volts Rocker switch activated DOWN:— Voltage .................................................................................... between 0.5 and 2.5 volts Rocker switch activated UP:—Voltage ................................... between 3.5 and 4.5 volts

• If type of error indicates a loose contact, GO TO Circuit/harness test for function 3 (E-ICV). See Section 245, Group SIC in the Technical manual. NOT OK: GO TO Circuit/harness test for function 3 (E-ICV). See Section 245, Group SIC in the Technical manual..

– – –1/1

SIC 334044.31 — E-SCV No.1, Potentiometer at Control Lever Faulty

Diagnostic trouble code SIC 334044.31 is saved if the signal voltage of the potentiometer for E-SCV control lever no. 1 is not within the permitted range. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000255 –19–11AUG03–1/1

TM4726 (01NOV03)

211-SIC-28

6020 to 6920S tractors 022204

PN=814

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective control lever potentiometer 1 (S91). • Defective signal lead (lead 751): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 1 switch/potentiometer (S91): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 29

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-29

6020 to 6920S tractors 022204

PN=815

SIC Diagnostic Trouble Codes 2 Checking control lever potentiometer 1 (S91)

211 SIC 30

OK: • Diagnosis completed.

Access address SIC 24: SIC 24 –– Voltage, control lever potentiometer 1 for E-SCV (S91)—Specification Control lever in neutral position (not activated):—Voltage ................................................................ between 2.6 and 3.0 volts Control lever pressed down:—Voltage ................................... between 3.5 and 4.5 volts Control lever pulled up:—Voltage ........................................... between 0.5 and 2.5 volts Control lever pulled all the way up (in detent):—Voltage ..................................................................... between 0.8 and 1.1 volts

• Type of error indicates a loose contact, GO TO Circuit/harness test for E-SCV no.1 (control lever’s switch/potentiometer) in Section 245, Group SIC in the Technical Manual. NOT OK: GO TO Circuit/harness test for E-SCV no.1 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334045.31 — E-SCV No.2, Potentiometer at Control Lever Faulty

Diagnostic trouble code SIC 334045.31 is saved if the signal voltage of the potentiometer for E-SCV control lever no. 2 is not within the permitted range. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000256 –19–11AUG03–1/1

TM4726 (01NOV03)

211-SIC-30

6020 to 6920S tractors 022204

PN=816

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective control lever potentiometer 2 (S97). • Defective signal lead (lead 753): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 2 switch/potentiometer (S97): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 31

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-31

6020 to 6920S tractors 022204

PN=817

SIC Diagnostic Trouble Codes 2 Checking the potentiometer on control lever 2 (S97)

211 SIC 32

OK: • Diagnosis completed.

Access address SIC 25: SIC 25 –– Voltage, control lever potentiometer 2 for E-SCV (S97)—Specification Control lever in neutral position (not activated):—Voltage ................................................................ between 2.6 and 3.0 volts Control lever pressed down:—Voltage ................................... between 3.5 and 4.5 volts Control lever pulled up:—Voltage ........................................... between 0.5 and 2.5 volts Control lever pulled all the way up (in detent):—Voltage ..................................................................... between 0.8 and 1.1 volts

• Type of error indicates a loose contact, GO TO Circuit/harness test for E-SCV no.2 (control lever’s switch/potentiometer) in Section 245, Group SIC in the Technical Manual. NOT OK: GO TO Circuit/harness test for E-SCV no.2 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334046.31 — E-SCV No.3, Potentiometer at Control Lever Faulty

Diagnostic trouble code SIC 334046.31 is saved if the signal voltage of the potentiometer for E-SCV control lever no. 3 is not within the permitted range. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000257 –19–11AUG03–1/1

TM4726 (01NOV03)

211-SIC-32

6020 to 6920S tractors 022204

PN=818

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective potentiometer on control lever 3 (S98). • Defective signal lead (lead 755): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 3 switch/potentiometer (S98): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 33

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-33

6020 to 6920S tractors 022204

PN=819

SIC Diagnostic Trouble Codes 2 Checking the potentiometer on control lever 3 (S98)

211 SIC 34

OK: • Diagnosis completed.

Access address SIC 26: SIC 26 –– Voltage, control lever potentiometer 3 for E-SCV (S97)—Specification Control lever in neutral position (not activated):—Voltage ................................................................ between 2.6 and 3.0 volts Control lever pressed down:—Voltage ................................... between 3.5 and 4.5 volts Control lever pulled up:—Voltage ........................................... between 0.5 and 2.5 volts Control lever pulled all the way up (in detent):—Voltage ..................................................................... between 0.8 and 1.1 volts

• Type of error indicates a loose contact, GO TO Circuit/harness test for E-SCV no.3 (control lever’s switch/potentiometer) in Section 245, Group SIC in the Technical Manual. NOT OK: GO TO Circuit/harness test for E-SCV no.3 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334047.31 — E-SCV No.4, Potentiometer at Control Lever Faulty

Diagnostic trouble code SIC 334047.31 is saved if the signal voltage of the potentiometer for E-SCV control lever no. 4 is not within the permitted range. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000259 –19–11AUG03–1/1

TM4726 (01NOV03)

211-SIC-34

6020 to 6920S tractors 022204

PN=820

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective potentiometer on control lever 4 (S99). • Defective signal lead (lead 757): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 4 switch/potentiometer (S99): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 35

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-35

6020 to 6920S tractors 022204

PN=821

SIC Diagnostic Trouble Codes 2 Checking the potentiometer on control lever 4 (S99)

211 SIC 36

OK: • Diagnosis completed.

Access address SIC 27: SIC 27 –– Voltage, control lever potentiometer 4 for E-SCV (S99)—Specification Control lever in neutral position (not activated):—Voltage ................................................................ between 2.6 and 3.0 volts Control lever pressed down:—Voltage ................................... between 3.5 and 4.5 volts Control lever pulled up:—Voltage ........................................... between 0.5 and 2.5 volts Control lever pulled all the way up (in detent):—Voltage ..................................................................... between 0.8 and 1.1 volts

• Type of error indicates a loose contact, GO TO Circuit/harness test for E-SCV no.4 (control lever’s switch/potentiometer) in Section 245, Group SIC in the Technical Manual. NOT OK: GO TO Circuit/harness test for E-SCV no.4 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334051.31 — E-ICV No.1, Switch at Multi-Function Lever Faulty

Diagnostic trouble code SIC 334051.31 is saved if the status of the switch on the multi-function lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”. • Multifunction lever direction: Forward and reverse (1st function).

LX26156,000003D –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-36

6020 to 6920S tractors 022204

PN=822

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective switch on multifunction lever (function 1). • Multi-function lever (function 1) not calibrated. • Defective signal lead (lead 766): – Open, shorted or grounded circuit. • Defective power supply between the SIC and switch/potentiometer on the multi-function lever (function 1): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 37

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of independent control valves (E-ICV)” (6120-6620) • “Electrical actuation of independent control valves (E-ICV)” (6820-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the switch for function 1

Access address SIC 10: SIC 10 –– Status, switch for function 1 (E-ICV)—Specification Multi-function lever in neutral position— Status ....................................................................................................... XX0 (CLOSED) Multi-function lever in forward or reverse position (not moved against perceptible resistance)—Status ....................................................................................... XX1 (OPEN) Multi-function lever in forward or reverse position (moved against perceptible resistance, but not set to "float")—Status ................................................ XX0 (CLOSED) Multi-function lever forward to float position (in detent)—Status ........................................................................... XX1 (OPEN)

OK: Diagnosis completed. Re-calibrate E-ICV (function 1). NOT OK: GO TO Circuit/harness test for function 1 (E-ICV). Section 245, Group SIC in the Technical manual.

– – –1/1

TM4726 (01NOV03)

211-SIC-37

6020 to 6920S tractors 022204

PN=823

SIC Diagnostic Trouble Codes

SIC 334052.31 — E-ICV No.2, Switch at Multi-Function Lever Faulty

211 SIC 38

Diagnostic trouble code SIC 334052.31 is saved if the status of the switch on the multi-function lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”. • Multifunction lever direction: Left and right (2nd function).

LX26156,000003C –19–01AUG03–1/1

Diagnostics The following are possible causes: • Defective switch on multifunction lever (function 2). • Multi-function lever (function 2) not calibrated. • Defective signal lead (lead 777): – Open, shorted or grounded circuit. • Defective power supply between the SIC and switch/potentiometer on the multi-function lever (function 1): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of independent control valves (E-ICV)” (6120-6620) • “Electrical actuation of independent control valves (E-ICV)” (6820-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-38

6020 to 6920S tractors 022204

PN=824

SIC Diagnostic Trouble Codes 2 Checking the switch for function 2

Access address SIC 10: SIC 10 –– Status, switch for function 2 (E-ICV)—Specification Multi-function lever in neutral position— Switch status ............................................................................................ X0X (CLOSED) Multi-function lever in left or right position (not moved against perceptible resistance)—Switch status ............................................................................ X1X (OPEN) Multi-function lever in left or right position (moved against perceptible resistance)—Switch status ....................................................................... X0X (CLOSED)

OK: Diagnosis completed. Re-calibrate E-ICV (function 2). NOT OK: GO TO Circuit/harness test for function 2 (E-ICV). Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334053.31 — E-ICV No.3, Switch at Multi-Function Lever Faulty

Diagnostic trouble code SIC 334053.31 is saved if the status of the switch on the multi-function lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”. • Rocker switch on multifunction lever: Top and bottom positions (3rd function).

LX26156,000003B –19–01AUG03–1/1

Diagnostics The following are possible causes: • Defective switch on multifunction lever (function 3). • Multi-function lever (function 3) not calibrated. • Defective signal lead (lead 779): – Open, shorted or grounded circuit. • Defective power supply between the SIC and switch/potentiometer on the multi-function lever (function 1): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of independent control valves (E-ICV)” (6120-6620) • “Electrical actuation of independent control valves (E-ICV)” (6820-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-39

6020 to 6920S tractors 022204

PN=825

211 SIC 39

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 SIC 40

– – –1/1

2 Checking the switch for function 3

Access address SIC 10: SIC 10 –– Status, switch for function 3 (E-ICV)—Specification Rocker switch on multi-function lever in neutral position (not activated):—Status .................................................. 0XX (CLOSED) Rocker switch activated (UP or DOWN):—Status ........................................................................................... 1XX (OPEN)

OK: Diagnosis completed. Re-calibrate E-ICV (function 3). NOT OK: GO TO Circuit/harness test for function 3 (E-ICV). See Section 245, Group SIC in the Technical manual..

– – –1/1

SIC 334054.31 — E-SCV No.1, Switch at Control Lever Faulty

Diagnostic trouble code SIC 334054.31 is saved if the status of the switch on the control lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,000003A –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-40

6020 to 6920S tractors 022204

PN=826

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective control lever switch 1 (S91). • Control lever 1 (S91) not calibrated. • Defective signal lead (lead 752): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 1 switch/potentiometer (S91): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 41

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the switch on control lever 1 (S91)

Access address SIC 11: SIC 11 –– Status, control lever switch 1 for E-SCV (S91)—Specification Control lever switch not activated:— Status ....................................................................................................... XX0 (CLOSED) Control lever switch activated (in forward or reverse position):—Status ......................................................................... XX1 (OPEN) Control lever switch in forward or reverse position (moved against perceptible resistance)—Status ............................................................... XX0 (CLOSED) Control lever switch forward to float position (in detent)—Status ........................................................................... XX1 (OPEN)

OK: Diagnosis completed. Recalibrate the E-SCV (control lever 1). NOT OK: GO TO Circuit/harness test for E-SCV no.1 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual. – – –1/1

TM4726 (01NOV03)

211-SIC-41

6020 to 6920S tractors 022204

PN=827

SIC Diagnostic Trouble Codes

SIC 334055.31 — E-SCV No.2, Switch at Control Lever Faulty

211 SIC 42

Diagnostic trouble code SIC 334055.31 is saved if the status of the switch on the control lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000039 –19–01AUG03–1/1

Diagnostics The following are possible causes: • Defective control lever switch 2 (S97). • Control lever 2 (S97) not calibrated. • Defective signal lead (lead 754): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 2 switch/potentiometer (S97): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-42

6020 to 6920S tractors 022204

PN=828

SIC Diagnostic Trouble Codes 2 Checking the switch on control lever 2 (S97)

Access address SIC 11: SIC 11 –– Status, control lever switch 2 for E-SCV (S97)—Specification Control lever switch not activated:— Status ....................................................................................................... X0X (CLOSED) Control lever switch activated (in forward or reverse position):—Status ......................................................................... X1X (OPEN) Control lever switch in forward or reverse position (moved against perceptible resistance)—Status ............................................................... X0X (CLOSED) Control lever switch forward to float position (in detent)—Status ........................................................................... X1X (OPEN)

OK: Diagnosis completed. Recalibrate the E-SCV (control lever 2). NOT OK: GO TO Circuit/harness test for E-SCV no.2 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual. – – –1/1

SIC 334056.31 — E-SCV No.3, Switch at Control Lever Faulty

Diagnostic trouble code SIC 334056.31 is saved if the status of the switch on the control lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000037 –19–01AUG03–1/1

Diagnostics The following are possible causes: • Defective switch on control lever 3 (S98). • Control lever 3 (S98) not calibrated. • Defective signal lead (lead 756): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 3 switch/potentiometer (S98): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-43

6020 to 6920S tractors 022204

PN=829

211 SIC 43

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 SIC 44

– – –1/1

2 Checking the switch on control lever 3 (S98)

Access address SIC 11: SIC 11 –– Status, control lever switch 3 for E-SCV (S98)—Specification Control lever switch not activated:— Status ....................................................................................................... 0XX (CLOSED) Control lever switch activated (in forward or reverse position):—Status ......................................................................... 1XX (OPEN) Control lever switch in forward or reverse position (moved against perceptible resistance)—Status ............................................................... 0XX (CLOSED) Control lever switch forward to float position (in detent)—Status ........................................................................... 1XX (OPEN)

OK: Diagnosis completed. Recalibrate the E-SCV (control lever 3). NOT OK: GO TO Circuit/harness test for E-SCV no.3 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual. – – –1/1

SIC 334057.31 — E-SCV No.4, Switch at Control Lever Faulty

Diagnostic trouble code SIC 334057.31 is saved if the status of the switch on the control lever does not match the signal voltage of the potentiometer. This

diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000036 –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-44

6020 to 6920S tractors 022204

PN=830

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective switch on control lever 4 (S99). • Control lever 4 (S99) not calibrated. • Defective signal lead (lead 758): – Open, shorted or grounded circuit. • Defective power supply between the SIC and control lever 4 switch/potentiometer (S99): – Open or shorted circuit at the ground lead (cable 741). – Open circuit at positive lead (cable 733). Additional references:

211 SIC 45

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-001, Calibration and Input Addresses for Selective Control Valves (E-SCV and E-ICV) • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the switch on control lever 4 (S99)

Access address SIC 12: SIC 12 –– Status, control lever switch 4 for E-SCV (S99)—Specification Control lever switch not activated:— Status ....................................................................................................... XX0 (CLOSED) Control lever switch activated (in forward or reverse position):—Status ......................................................................... XX1 (OPEN) Control lever switch in forward or reverse position (moved against perceptible resistance)—Status ............................................................... XX0 (CLOSED) Control lever switch forward to float position (in detent)—Status ........................................................................... XX1 (OPEN)

OK: Diagnosis completed. Recalibrate the E-SCV (control lever 4). NOT OK: GO TO Circuit/harness test for E-SCV no.4 (control lever’s switch/potentiometer). See Section 245, Group SIC in the Technical manual. – – –1/1

TM4726 (01NOV03)

211-SIC-45

6020 to 6920S tractors 022204

PN=831

SIC Diagnostic Trouble Codes

SIC 334059.31 — 5-volt Power Supply is Faulty

211 SIC 46

Diagnostic trouble code SIC 334059.31 is saved if there is a problem with the power supply to the 5-volt components (potentiometers for control levers and

multi-function lever, plus the E-SCV adjusting knob). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000425 –19–01OCT01–1/1

Diagnosis

NOTE: The following are possible causes: • An open circuit in the harness. • Defective power supply circuit between the SIC and the 5-volt components. – Power supply interrupted (ground lead 741 and/or positive lead 733). • Defective controller for the E-SCVs / E-ICVs (SIC) Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-46

6020 to 6920S tractors 022204

PN=832

SIC Diagnostic Trouble Codes 2 Checking the 5-volt power supply

OK: • Diagnosis completed.

Access address SIC 30 : SIC30 –– Voltage, 5-volt power supply for SIC components—Specification 5-volt power supply:—Minimum voltage ............................................................ 4.75 volts Maximum voltage ............................................................................................... 5.25 volts

• Type of error indicates a loose contact: GO TO 3. NOT OK: Check the 5-volt power supply circuit, GO TO 3.

– – –1/1

3 Checking the 5-volt power supply circuit (positive lead 733 and ground lead 741)

The following components are powered by the 5-volt power supply circuit: • Multifunction lever functions 1, 2 and 3. • Control levers for the E-SCVs: S91, S97, S98 and S99 (harness W12 with Command Arm). • E-SCV function adjusting knob B115 (harness W16).

NOTE: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked. For circuit diagram see: • Reference 240-10-030, SE21-Electronic Actuation of SCVs. For component location and pin arrangement see Command Arm harness W12 (AutoPowr/IVT transmission) and SIC wiring harness W16 • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-SIC-47

6020 to 6920S tractors 022204

PN=833

211 SIC 47

SIC Diagnostic Trouble Codes

SIC 334060.14 — E-ICV, Transport Lock Switch is Faulty

211 SIC 48

Diagnostic trouble code SIC 334060.14 is saved if the two output signals of the transport lock switch are active simultaneously for longer than 0.5 seconds, or if no switch output signal is registered by the controller

at all. This indicates an interruption or a short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000035 –19–02APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective switch at the E-ICV transport lock (S65). • A defective wire connection between E-ICV transport lock switch (S65) and the SIC. – Open circuit (cable 776 and/or 773). – Short between cables 776 and 773. • A defective power supply lead (cable 562) to the E-ICV transport lock switch (S65). – Fuse F03_15 blown. – Open circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-48

6020 to 6920S tractors 022204

PN=834

SIC Diagnostic Trouble Codes 2 Checking the E-ICV transport lock switch (S65)

OK: • Diagnosis completed.

Access address SIC 06 : SIC 06 –– Status, E-ICV transport lock switch (S65)—Specification Transport lock engaged (“padlock” icon)—Switch status .................................................................................................... X10 Transport lock disengaged (“four arrows” icon)—Switch status .................................................................................................... X01

• Type of error indicates a loose contact: GO TO Circuit/harness test for E-ICV transport lock (S65). See Section 245, Group SIC in the Technical manual. NOT OK: GO TO Circuit/harness test for E-ICV transport lock (S65).in Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334061.14 — E-ICV, Safety Switch is Faulty

Diagnostic trouble code SIC 334061.14 is saved if the two output signals of the safety switch are active simultaneously for longer than 1 second, or if no switch output signal is registered by the controller at

all. This indicates an interruption or a short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000038 –19–02APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective safety switch (integrated into multi-function lever S64). • Defective line connection between the safety switch and the SIC. – Open circuit (cable 704 and/or 705). – Short between cables 704 and 705. • A defective power supply lead (cable 562) to the safety switch (integrated into multi-function lever S64). – Fuse F03_15 blown. – Open circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

TM4726 (01NOV03)

211-SIC-49

6020 to 6920S tractors 022204

PN=835

211 SIC 49

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 SIC 50

– – –1/1

2 Checking the safety switch in the multi-function lever

OK: • Diagnosis completed.

Access address SIC 07 : SIC 07 –– Status, safety switch in multi-function lever—Specification Switch NOT activated (multi-function lever switched off):—Switch status ............................................................................. X10 Switch activated (multi-function lever switched on):—Switch status ...................................................................................... X01

• Type of error indicates a loose contact: GO TO Circuit/harness test for safety switch (E-ICV) in section 245, Group SIC in the Technical manual. NOT OK: GO TO Circuit/harness test for safety switch (E-ICV) in section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334062.14 — E-SCV, Transport Lock Switch is Faulty

Diagnostic trouble code SIC 334062.14 is saved if the two output signals of the transport lock switch are received simultaneously for longer than 0.5 seconds, or if no switch signal is registered by the controller at

all. This indicates an interruption or a short circuit to the supply voltage (battery voltage) in the switch circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX26156,0000034 –19–02APR02–1/1

TM4726 (01NOV03)

211-SIC-50

6020 to 6920S tractors 022204

PN=836

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective switch at the E-SCV transport lock (S110). • A defective wire connection between E-SCV transport lock switch (S110) and the SIC. – Open circuit (cable 725 and/or 726). – Short between cables 725 and 726). • A defective power supply lead (cable 562) to the E-SCV transport lock switch (S110). – Fuse F03_15 blown. – Open circuit. Additional references:

211 SIC 51

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Electrical actuation of selective control valves (E-SCV)” (6120-6620) • “Electrical actuation of selective control valves (E-SCV)” (6620-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-51

6020 to 6920S tractors 022204

PN=837

SIC Diagnostic Trouble Codes 2 Checking the E-SCV transport lock switch (S110)

211 SIC 52

OK: • Diagnosis completed.

Access address SIC 05 : SIC 05 –– Status, E-SCV transport lock switch (S110)—Specification Transport lock engaged (“padlock” icon)—Switch status .................................................................................................... X10 Transport lock disengaged (“four arrows” icon)—Switch status .................................................................................................... X01

• Type of error indicates a loose contact: GO TO Circuit/harness test for E-SCV transport lock (S110).in Section 245, Group SIC in the Technical manual. NOT OK: GO TO Circuit/harness test for E-SCV transport lock (S110).in Section 245, Group SIC in the Technical manual.

– – –1/1

SIC 334106.31 — Control Unit, Internal Error

Diagnostic trouble code SIC 334106.31 is saved if there is an error in the memory of the controller for electrically actuated SCVs. All values in the memory

are replaced by the factory default settings. This might change how the control unit operates. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000429 –19–01APR02–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the SIC with a new one.

– – –1/1

TM4726 (01NOV03)

211-SIC-52

6020 to 6920S tractors 022204

PN=838

SIC Diagnostic Trouble Codes

SIC 334136.18 — E-ICV No.1, Stepper Motor, Power Supply Too Low

Diagnostic trouble code SIC 334136.18 is saved if system voltage (battery voltage) at the stepper motor of E-ICV no.1 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000042A –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-53

6020 to 6920S tractors 022204

PN=839

211 SIC 53

SIC Diagnostic Trouble Codes 3 Check Charging System

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC 54

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-ICV Nr.1 stepper motor

See: Circuit/harness test for E-ICV no.1 stepper motor (M12), power supply.in Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M12) and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334137.01 — E-ICV No.1, Stepper Motor, Power Supply Very Low

Diagnostic trouble code SIC 334137.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-ICV no.1. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000042B –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-54

6020 to 6920S tractors 022204

PN=840

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • • • •

Fuse F03_10 blown (power supply to E-ICV1, E-ICV2 and E-ICV3). Defective relay K02_5 (power supply to E-ICV1, E-ICV2 and E-ICV3). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references:

211 SIC 55

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

• Check F03_10 and relay K02_5.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-55

6020 to 6920S tractors 022204

PN=841

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC 56

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-ICV Nr.1 stepper motor

See: Circuit/harness test for E-ICV no.1 stepper motor (M12), power supply.in Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M12) and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334138.00 — E-ICV No.1, Stepper Motor, Power Supply Too High

Diagnostic trouble code SIC 334138.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-ICV no.1. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000042C –19–01SEP01–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. – – –1/1

TM4726 (01NOV03)

211-SIC-56

6020 to 6920S tractors 022204

PN=842

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

SIC 334139.14 — E-ICV No.1, Stepper Motor, No Connection to Controller

Diagnostic trouble code SIC 334139.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.1 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,000042D –19–01AUG03–1/1

Diagnostics The following are possible causes: • Defective 11-bit CAN BUS connection to the E-ICV no.1 stepper motor (plug X318). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14. • Fuse F03_10 blown • Defective relay K02_5 Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-57

6020 to 6920S tractors 022204

PN=843

211 SIC 57

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC 58

1.2 Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: GO TO 2

– – –1/1

2 Circuit test, stepper motor E-ICV no.1 (M12)

See: Circuit test for E-ICV no.1 stepper motor (M12). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M12) and carry out an operational check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

SIC 334140.14 — E-ICV No.1, Stepper Motor, Coil Temperature Too Low

Diagnostic trouble code SIC 334140.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000042E –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

TM4726 (01NOV03)

211-SIC-58

6020 to 6920S tractors 022204

PN=844

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: 211 • If the diagnostic trouble SIC code is realistic (low 59 outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3. – – –1/1

2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334141.14 — E-ICV No.1, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334141.14 is saved if the stepper motor measures a temperature higher than 100 °C (212 °F) at the coil. The stepper motor does

not become operable again until coil temperature drops below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000042F –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-59

6020 to 6920S tractors 022204

PN=845

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 SIC 60

• Hydraulic oil or transmission oil are overheated. – Priority diagnostic trouble codes BIF 000177.00, BIF 000177.16 or TCU 304152.00 must be processed first. • The stepper motor is overloaded (information for the operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BCU or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • Calibrate the stepper motor’s identification number (in address SIC 40). See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs. • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

TM4726 (01NOV03)

211-SIC-60

6020 to 6920S tractors 022204

PN=846

SIC Diagnostic Trouble Codes

SIC 334144.18 — E-ICV No.2, Stepper Motor, Power Supply Too Low

Diagnostic trouble code SIC 334144.18 is saved if system voltage (battery voltage) at the stepper motor of E-ICV no.2 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000430 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-61

6020 to 6920S tractors 022204

PN=847

211 SIC 61

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC 62

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-ICV No.2 stepper motor

See: Circuit/harness test for E-ICV no.2 stepper motor (M13), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M13) and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334145.01 — E-ICV No.2, Stepper Motor, Power Supply Very Low

Diagnostic trouble code SIC 334145.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-ICV no.2. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000431 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-62

6020 to 6920S tractors 022204

PN=848

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • • • •

Fuse F03_10 blown (power supply to E-ICV1, E-ICV2 and E-ICV3). Defective relay K02_5 (power supply to E-ICV1, E-ICV2 and E-ICV3). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references:

211 SIC 63

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

• Check F03_10 and relay K02_5.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-63

6020 to 6920S tractors 022204

PN=849

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC 64

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-ICV Nr.2 stepper motor

See: Circuit/harness test for E-ICV no.2 stepper motor (M13), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M13) and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334146.00 — E-ICV No.2, Stepper Motor, Power Supply Too High

Diagnostic trouble code SIC 334146.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-ICV no.2. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000432 –19–01SEP01–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. – – –1/1

TM4726 (01NOV03)

211-SIC-64

6020 to 6920S tractors 022204

PN=850

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

SIC 334147.14 — E-ICV No.2, Stepper Motor, No Connection to Controller

Diagnostic trouble code SIC 334147.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.2 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,0000433 –19–01AUG03–1/1

Diagnostics The following is a possible cause: • Defective 11-bit CAN BUS connection to the E-ICV no.2 stepper motor (plug X251). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14 • Fuse F03_10 blown • Defective relay K02_5 Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-65

6020 to 6920S tractors 022204

PN=851

211 SIC 65

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC 66

1.2 Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: GO TO 2

– – –1/1

2 Circuit test, stepper motor E-ICV no.2 (M13)

See: Circuit test for E-ICV no.2 stepper motor (M13). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M13) and carry out an operational check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

SIC 334148.14 — E-ICV No.2, Stepper Motor, Coil Temperature Too Low

Diagnostic trouble code SIC 334148.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000434 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

TM4726 (01NOV03)

211-SIC-66

6020 to 6920S tractors 022204

PN=852

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: If 211 the diagnostic trouble SIC code is realistic (low 67 outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3. – – –1/1

2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334149.14 — E-ICV No.2, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334149.14 is saved if the stepper motor measures a temperature higher than 100 °C (212 °F) at the coil. The stepper motor does

not become operable again until coil temperature drops below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000435 –19–01SEP01–1/1

TM4726 (01NOV03)

211-SIC-67

6020 to 6920S tractors 022204

PN=853

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 SIC 68

• Hydraulic oil or transmission oil are overheated. – Priority diagnostic trouble codes BIF 000177.00, BIF 000177.16 or TCU 304152.00 must be processed first. • The stepper motor is overloaded (information for the operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BCU or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • Calibrate the stepper motor’s identification number (in address SIC 40). See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs. • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

TM4726 (01NOV03)

211-SIC-68

6020 to 6920S tractors 022204

PN=854

SIC Diagnostic Trouble Codes

SIC 334152.18 — E-ICV No.3, Stepper Motor, Power Supply Too Low

Diagnostic trouble code SIC 334152.18 is saved if system voltage (battery voltage) at the stepper motor of E-ICV no.3 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000436 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors.

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-69

6020 to 6920S tractors 022204

PN=855

211 SIC 69

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC 70

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-ICV Nr.3 stepper motor

See: Circuit/harness test for E-ICV no.3 stepper motor (M14), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M14) and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334153.01 — E-ICV No.3, Stepper Motor, Power Supply Very Low

Diagnostic trouble code SIC 334153.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-ICV no.3. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000437 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-70

6020 to 6920S tractors 022204

PN=856

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • • • •

Fuse F03_10 blown (power supply to E-ICV1, E-ICV2 and E-ICV3). Defective relay K02_5 (power supply to E-ICV1, E-ICV2 and E-ICV3). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references:

211 SIC 71

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

• Check F03_10 and relay K02_5.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-71

6020 to 6920S tractors 022204

PN=857

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC 72

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-ICV Nr.3 stepper motor

See: Circuit/harness test for E-ICV no.3 stepper motor (M14), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M14) and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334154.00 — E-ICV No.3, Stepper Motor, Power Supply Too High

Diagnostic trouble code SIC 334154.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-ICV no.3. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000438 –19–01SEP01–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. – – –1/1

TM4726 (01NOV03)

211-SIC-72

6020 to 6920S tractors 022204

PN=858

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

SIC 334155.14 — E-ICV No.3, Stepper Motor, No Connection to Controller

Diagnostic trouble code SIC 334155.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.3 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,0000439 –19–01AUG03–1/1

Diagnostics The following is a possible cause: • Defective 11-bit CAN BUS connection to the E-ICV no.3 stepper motor (plug X252). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14. • Fuse F03_10 blown • Defective relay K02_5 Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-73

6020 to 6920S tractors 022204

PN=859

211 SIC 73

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC 74

1.2 Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: GO TO 2

– – –1/1

2 Circuit test, stepper motor E-ICV no.3 (M14)

See: Circuit test for E-ICV no.3 stepper motor (M14). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M14) and carry out an operational check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

SIC 334156.14 — E-ICV No.3, Stepper Motor, Coil Temperature Too Low

Diagnostic trouble code SIC 334156.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000043A –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

TM4726 (01NOV03)

211-SIC-74

6020 to 6920S tractors 022204

PN=860

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: If 211 the diagnostic trouble SIC code is realistic (low 75 outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3. – – –1/1

2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334157.14 — E-ICV No.3, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334157.14 is stored if the stepper motor registers a coil temperature more than 100 °C (212 °F). The stepper motor is not fully

operational until coil temperature has dropped below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000043B –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-75

6020 to 6920S tractors 022204

PN=861

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 SIC 76

• Hydraulic oil or transmission oil are overheated. – Diagnostic trouble codes BIF 000177.00, BIF 000177.16 and TCU 304152.00 take priority. • The stepper motor is overloaded (information for the operator). • Defective temperature sender in stepper motor. Additional References: • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BIF or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SIC-76

6020 to 6920S tractors 022204

PN=862

SIC Diagnostic Trouble Codes 3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If several stepper motors are replaced, see Address SIC 40 — Input Address for Identification Number of Stepper Motor, Selective Control Valves (E-SCV and E-ICV) (Section 245, Group SIC). • Calibrate the stepper motor. See Reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

211 SIC 77

– – –1/1

SIC 334160.18 — E-SCV No.1, Stepper Motor, Power Supply Too Low

Diagnostic trouble code SIC 334160:18 is saved if system voltage (battery voltage) at the stepper motor of E-SCV no.1 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000043C –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors (E-SCV no.1 and E-SCV no.2).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-77

6020 to 6920S tractors 022204

PN=863

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 SIC 78

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.1 stepper motor

See: Circuit/harness test for E-SCV no.1 stepper motor (M36), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SIC-78

6020 to 6920S tractors 022204

PN=864

SIC Diagnostic Trouble Codes

SIC 334161.01 — E-SCV No.1, Stepper Motor, Power Supply Very Low

Diagnostic trouble code SIC 334161.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-SCV no.1. The diagnostic trouble code triggers the alarm level: “Information”.

211 SIC 79

LX25546,000043D –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • • • •

Fuse F03_12 blown (power supply to E-SCV no.1 and E-SCV no.2). Defective relay K02_7 (power supply to E-SCV no.1 and E-SCV no.2). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-79

6020 to 6920S tractors 022204

PN=865

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 SIC 80

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

• Check F03_12 and relay K02_7.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.1 stepper motor

See: Circuit/harness test for E-SCV no.1 stepper motor (M36), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SIC-80

6020 to 6920S tractors 022204

PN=866

SIC Diagnostic Trouble Codes

SIC 334162.00 — E-SCV No.1, Stepper Motor, Power Supply Too High

Diagnostic trouble code SIC 334162.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-SCV no.1. The diagnostic trouble code triggers the alarm level: “Information”.

211 SIC 81

LX25546,000043E –19–01APR02–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-SIC-81

6020 to 6920S tractors 022204

PN=867

SIC Diagnostic Trouble Codes

SIC 334163.14 — E-SCV No.1, Stepper Motor, No Connection to Controller

211 SIC 82

Diagnostic trouble code SIC 334163.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.1 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,000043F –19–01AUG03–1/1

Diagnostics The following is a possible cause: • Defective 11-bit CAN BUS connection to the E-SCV no.1 stepper motor (plug X464). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14. • Fuse F03_12 blown • Defective relay K02_7 Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: GO TO 2

– – –1/1

TM4726 (01NOV03)

211-SIC-82

6020 to 6920S tractors 022204

PN=868

SIC Diagnostic Trouble Codes 2 Circuit test for E-SCV no.1 stepper motor (M36)

See: Circuit test for E-SCV no.1 stepper motor (M36). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M36) and carry out an operational check. NOT OK: Recondition as required and carry out an 211 operational test. SIC 83

– – –1/1

SIC 334164.14 — E-SCV No.1, Stepper Motor, Coil Temperature Too Low

Diagnostic trouble code SIC 334164.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000440 –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: • If the diagnostic trouble code is realistic (low outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-83

6020 to 6920S tractors 022204

PN=869

SIC Diagnostic Trouble Codes 2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed.

211 SIC 84

NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334165.14 — E-SCV No.1, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334165.14 is saved if the stepper motor measures a temperature higher than 100 °C (212 °F) at the coil. The stepper motor does

not become operable again until coil temperature drops below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000441 –19–01SEP01–1/1

TM4726 (01NOV03)

211-SIC-84

6020 to 6920S tractors 022204

PN=870

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Hydraulic oil or transmission oil are overheated. – Priority diagnostic trouble codes BIF 000177.00, BIF 000177.16 or TCU 304152.00 must be processed first. • The stepper motor is overloaded (information for the operator). • Defective temperature sender at the stepper motor.

211 SIC 85

Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BCU or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • Calibrate the stepper motor’s identification number (in address SIC 40). See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs. • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

TM4726 (01NOV03)

211-SIC-85

6020 to 6920S tractors 022204

PN=871

SIC Diagnostic Trouble Codes

SIC 334168.18 — E-SCV No.2, Stepper Motor, Power Supply Too Low

211 SIC 86

Diagnostic trouble code SIC 334168.18 is saved if system voltage (battery voltage) at the stepper motor of E-SCV no.2 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000442 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors (E-SCV no.1 and E-SCV no.2).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test.

211-SIC-86

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=872

SIC Diagnostic Trouble Codes 2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.2 stepper motor

See: Circuit/harness test for E-SCV no.2 stepper motor (M37), power supply.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334169.01 — E-SCV No.2, Stepper Motor, Power Supply Very Low

Diagnostic trouble code SIC 334169.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-SCV no.2. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000443 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-87

6020 to 6920S tractors 022204

PN=873

211 SIC 87

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 SIC 88

• • • • • •

Fuse F03_12 blown (power supply to E-SCV no.1 and E-SCV no.2). Defective relay K02_7 (power supply to E-SCV no.1 and E-SCV no.2). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

• Check F03_12 and relay K02_7.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-88

6020 to 6920S tractors 022204

PN=874

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.2 stepper motor

See: Circuit/harness test for E-SCV no.2 stepper motor (M37), power supply.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334170.00 — E-SCV No.2, Stepper Motor, Power Supply Too High

Diagnostic trouble code SIC 334170.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-SCV no.2. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000444 –19–01SEP01–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. – – –1/1

TM4726 (01NOV03)

211-SIC-89

6020 to 6920S tractors 022204

PN=875

211 SIC 89

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2.

211 SIC 90

– – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

SIC 334171.14 — E-SCV No.2, Stepper Motor, No Connection to Controller

Diagnostic trouble code SIC 334171.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.2 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,0000445 –19–01AUG03–1/1

Diagnostics The following is a possible cause: • Defective 11-bit CAN BUS connection to the E-SCV no.2 stepper motor (plug X465). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14. • Fuse F03_12 blown • Defective relay K02_7 Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-90

6020 to 6920S tractors 022204

PN=876

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: GO TO 1.2.

1.2

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45).

Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

NOT OK: GO TO 2

– – –1/1

2 Circuit test for E-SCV no.2 stepper motor (M37)

See: Circuit test for E-SCV no.2 stepper motor (M37). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M37) and carry out an operational check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

SIC 334172.14 — E-SCV No.2, Stepper Motor, Coil Temperature Too Low

Diagnostic trouble code SIC 334172.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000446 –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

TM4726 (01NOV03)

211-SIC-91

6020 to 6920S tractors 022204

PN=877

211 SIC 91

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: • If the diagnostic trouble code is realistic (low outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3.

211 SIC 92

– – –1/1

2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334173.14 — E-SCV No.2, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334173.14 is stored if the stepper motor registers a coil temperature more than 100 °C (212 °F). The stepper motor is not fully

operational until coil temperature has dropped below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000447 –19–01OCT02–1/1

TM4726 (01NOV03)

211-SIC-92

6020 to 6920S tractors 022204

PN=878

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: • Hydraulic oil or transmission oil are overheated. – Diagnostic trouble codes BIF 000177.00, BIF 000177.16 and TCU 304152.00 take priority. • The stepper motor is overloaded (information for the operator). • Defective temperature sender in stepper motor.

211 SIC 93

Additional References: • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BIF or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SIC-93

6020 to 6920S tractors 022204

PN=879

SIC Diagnostic Trouble Codes 3 Replacing the stepper motor

211 SIC 94

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If several stepper motors are replaced, see Address SIC 40 — Input Address for Identification Number of Stepper Motor, Selective Control Valves (E-SCV and E-ICV) (Section 245, Group SIC). • Calibrate the stepper motor. See Reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334176.18 — E-SCV No.3, Stepper Motor, Power Supply Too Low

Diagnostic trouble code SIC 334176.18 is saved if system voltage (battery voltage) at the stepper motor of E-SCV no.3 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000448 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors (E-SCV no.3 and E-SCV no.4).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-94

6020 to 6920S tractors 022204

PN=880

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2 SIC 95

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.3 stepper motor

See: Circuit/harness test for E-SCV no.3 stepper motor (M38), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SIC-95

6020 to 6920S tractors 022204

PN=881

SIC Diagnostic Trouble Codes

SIC 334177.01 — E-SCV No.3, Stepper Motor, Power Supply Very Low

211 SIC 96

Diagnostic trouble code SIC 334177.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-SCV no.3. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000449 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • • • • • •

Fuse F03_11 blown (power supply to E-SCV no.3 and E-SCV no.4). Defective relay K02_6 (power supply to E-SCV no.3 and E-SCV no.4). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

TM4726 (01NOV03)

211-SIC-96

6020 to 6920S tractors 022204

PN=882

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2 SIC 97

1.2

OK: GO TO 2.

• Check F03_11 and relay K02_6.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.3 stepper motor

See: Circuit/harness test for E-SCV no.3 stepper motor (M38), power supply. in Section 245, Group SIC in the Technical manual.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SIC-97

6020 to 6920S tractors 022204

PN=883

SIC Diagnostic Trouble Codes

SIC 334178.00 — E-SCV No.3, Stepper Motor, Power Supply Too High

211 SIC 98

Diagnostic trouble code SIC 334178.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-SCV no.3. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000044A –19–01SEP01–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. – – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

SIC 334179.14 — E-SCV No.3, Stepper Motor, No Connection to Controller

Diagnostic trouble code SIC 334179.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.3 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,000044B –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-98

6020 to 6920S tractors 022204

PN=884

SIC Diagnostic Trouble Codes Diagnostics The following is a possible cause: • Defective 11-bit CAN BUS connection to the E-SCV no.3 stepper motor (plug X466). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14. • Fuse F03_11 blown. • Defective relay K02_6

211 SIC 99

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: GO TO 2

– – –1/1

2 Circuit test for E-SCV no.3 stepper motor (M38)

See: Circuit test for E-SCV no.3 stepper motor (M38). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M38) and carry out an operational check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SIC-99

6020 to 6920S tractors 022204

PN=885

SIC Diagnostic Trouble Codes

SIC 334180.14 — E-SCV No.3, Stepper Motor, Coil Temperature Too Low

211 SIC ,100

Diagnostic trouble code SIC 334180.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000044C –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: • If the diagnostic trouble code is realistic (low outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3. – – –1/1

2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SIC-100

6020 to 6920S tractors 022204

PN=886

SIC Diagnostic Trouble Codes 3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

211 SIC ,101

– – –1/1

SIC 334181.14 — E-SCV No.3, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334181.14 is stored if the stepper motor registers a coil temperature more than 100 °C (212 °F). The stepper motor is not fully

operational until coil temperature has dropped below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000044D –19–01OCT01–1/1

Diagnosis

NOTE: The following are possible causes: • Hydraulic oil or transmission oil are overheated. – Diagnostic trouble codes BIF 000177.00, BIF 000177.16 and TCU 304152.00 take priority. • The stepper motor is overloaded (information for the operator). • Defective temperature sender in stepper motor. Additional References: • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-101

6020 to 6920S tractors 022204

PN=887

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 SIC ,102

NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

1.2 BIF or TCU diagnostic trouble codes take priority.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If several stepper motors are replaced, see Address SIC 40 — Input Address for Identification Number of Stepper Motor, Selective Control Valves (E-SCV and E-ICV) (Section 245, Group SIC). • Calibrate the stepper motor. See Reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334184.18 — E-SCV No.4, Stepper Motor, Power Supply Too Low

Diagnostic trouble code SIC 334184.18 is saved if system voltage (battery voltage) at the stepper motor of E-SCV no.4 lies between 9 and 11 volts and

hydraulic oil temperature is between -25 °C (-13°F) and -15 °C (5 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000044E –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-102

6020 to 6920S tractors 022204

PN=888

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • •

Defective Defective Defective Defective

alternator drive. battery. alternator. line connection in circuit that supplies power to the stepper motors (E-SCV no.3 and E-SCV no.4).

211 SIC ,103

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-103

6020 to 6920S tractors 022204

PN=889

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC ,104

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.4 stepper motor

See: Circuit/harness test for E-SCV no.4 stepper motor (M39), power supply. in Section 245, Group SIC in the Technical manual.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334185.01 — E-SCV No.4, Stepper Motor, Power Supply Very Low

Diagnostic trouble code SIC 334185.01 is saved if the system voltage (battery voltage) is less than 9 volts at

the stepper motor of E-SCV no.4. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000044F –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-104

6020 to 6920S tractors 022204

PN=890

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • • • • • •

Fuse F03_11 blown (power supply to E-SCV no.3 and E-SCV no.4). Defective relay K02_6 (power supply to E-SCV no.3 and E-SCV no.4). Defective alternator drive. Defective battery. Defective alternator. Defective line connection in power supply circuit. – Short to ground lead. – Open circuit. Additional references:

211 SIC ,105

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

• Check F03_11 and relay K02_6.

NOT OK: Repair as needed and carry out an operational test.

• Perform a visual inspection of the battery, the alternator and the drive belt. ❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

– – –1/1

2 Check system voltage (SIC system voltage)

Access address SIC 32 : SIC 32 –– Voltage, System Voltage (SIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle:—Voltage .................................. Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

OK: No problem with system voltage: GO TO 4. NOT OK: GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SIC-105

6020 to 6920S tractors 022204

PN=891

SIC Diagnostic Trouble Codes 3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit (SIC operating voltage) for bad, loose, widened or corroded contacts.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

211 SIC ,106

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

4 Checking power supply to E-SCV Nr.4 stepper motor

See: Circuit/harness test for E-SCV no.4 stepper motor (M39), power supply in Section 245, Group SIC in the Technical manual.

OK: Replace the stepper motor and carry out an operational check. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

SIC 334186.00 — E-SCV No.4, Stepper Motor, Power Supply Too High

Diagnostic trouble code SIC 334186.00 is saved if the system voltage (battery voltage) is more than 16 volts

at the stepper motor of E-SCV no.4. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000450 –19–01SEP01–1/1

Diagnostics

NOTE: The following is a possible cause: • Defective regulator at the alternator. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. – – –1/1

TM4726 (01NOV03)

211-SIC-106

6020 to 6920S tractors 022204

PN=892

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2. – – –1/1

2 Checking the alternator

Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

SIC 334187.14 — E-SCV No.4, Stepper Motor, No Connection to Controller

Diagnostic trouble code SIC 334187.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.4 and the SIC. Intermittently, the stepper motor cannot make any

connection to the controller via the 11-bit CAN BUS. This diagnostic trouble code triggers the alarm level: “Information”. The stepper motor itself is not responsible for this diagnostic trouble code.

LX25546,0000451 –19–01AUG03–1/1

Diagnostics The following is a possible cause: • Defective 11-bit CAN BUS connection to the E-SCV no.4 stepper motor (plug X467). • Defective SIC plug X456. – Power supply or 11-bit CAN BUS connection. • A general problem with the 11-bit CAN BUS. – The following diagnostic trouble codes are also saved: SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14. • Fuse F03_11 blown. • Defective relay K02_6 Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SIC-107

6020 to 6920S tractors 022204

PN=893

211 SIC ,107

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC ,108

NOT OK: GO TO 1.2.

1.2

OK: GO TO 11-bit CAN BUS test (Section 213, Group 45).

Are other diagnostic trouble codes saved that indicate a general problem in the 11-bit CAN BUS (SIC 334201.14, SIC 334202.14, SIC 334203.14, SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14)?

NOT OK: GO TO 2

– – –1/1

2 Circuit test for E-SCV no.4 stepper motor (M39)

See: Circuit test for E-SCV no.4 stepper motor (M39). Section 245, Group SIC in the Technical manual.

OK: Replace stepper motor (M39) and carry out an operational check. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

SIC 334188.14 — E-SCV No.4, Stepper Motor, Coil Temperature Too Low

Diagnostic trouble code SIC 334188.14 is saved if the stepper motor measures a temperature less than -45 °C (-49 °F) at the coil. The stepper motor is in its

warm-up phase (both windings of the coil receive electrical current). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000452 –19–01SEP01–1/1

Diagnostics

NOTE: The following are possible causes: • Ambient temperature is too cold (information for operator). • Defective temperature sender at the stepper motor. Additional references: • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

TM4726 (01NOV03)

211-SIC-108

6020 to 6920S tractors 022204

PN=894

SIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: 211 • If the diagnostic trouble SIC code is realistic (low ,109 outside temperature), GO TO 2. • If the diagnostic trouble code is unrealistic (high outside temperature), GO TO 3. – – –1/1

2 Warm-up phase

The warm-up phase is initiated automatically when the engine is running and system voltage is over 12 volts.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long warm-up phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long warm-up phase: GO TO 3.

– – –1/1

3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If more than one stepper motor has to be replaced, see address SIC 40 — Input address, stepper motor identification number, E-SCVs and E-ICVs (Section 245, Group SIC). • Calibrate the stepper motor. See reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

– – –1/1

SIC 334189.14 — E-SCV No.4, Stepper Motor, Coil Temperature Too High

Diagnostic trouble code SIC 334189.14 is stored if the stepper motor registers a coil temperature more than 100 °C (212 °F). The stepper motor is not fully

operational until coil temperature has dropped below 100 °C (212 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000453 –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-109

6020 to 6920S tractors 022204

PN=895

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 SIC ,110

• Hydraulic oil or transmission oil are overheated. – Diagnostic trouble codes BIF 000177.00, BIF 000177.16 and TCU 304152.00 take priority. • The stepper motor is overloaded (information for the operator). • Defective temperature sender in stepper motor. Additional References: • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 BIF or TCU diagnostic trouble codes take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist: GO TO 2.

– – –1/1

2 Cooling-down phase

Shut down the tractor and wait until the stepper motor has cooled down.

OK: If the diagnostic trouble code becomes inactive after a sufficiently long cooling-down phase: Diagnosis completed. NOT OK: If the diagnostic trouble code is still active despite a sufficiently long cooling-down phase: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SIC-110

6020 to 6920S tractors 022204

PN=896

SIC Diagnostic Trouble Codes 3 Replacing the stepper motor

• Replace the stepper motor with a new one. • An automatic stepper motor identification takes place (identification number of stepper motor in address SIC 40) if only one stepper motor is replaced. If several stepper motors are replaced, see Address SIC 40 — Input Address for Identification Number of Stepper Motor, Selective Control Valves (E-SCV and E-ICV) (Section 245, Group SIC). • Calibrate the stepper motor. See Reference 245-SIC-001, Calibration and Input Addresses for E-SCVs and E-ICVs.

OK: Diagnosis completed.

211 SIC ,111

– – –1/1

SIC 334201.14 — E-ICV No.1, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334201.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.1 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. The diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334202.14 and/or SIC 334203.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if after the ignition has been switched ON the SIC fails to receive an initialization message from the stepper motor.

LX25546,0000454 –19–01OCT02–1/1

Diagnosis

NOTE: The following is a possible cause: • Tractor is not equipped with an E-ICV (incorrect calibration value stored in address SIC 36). • Stepper motor for E-ICV no.1 is not connected. • Defective stepper motor plug X318. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/10 and relay K02/5) – The following diagnostic trouble codes are also saved: SIC 334202.14 and/or SIC 334203.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334202.14 and/or SIC 334203.14. • Defective stepper motor (M12) for the E-ICV no.1 function. Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-111

6020 to 6920S tractors 022204

PN=897

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 SIC ,112

1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If the stepper motor is connected: GO TO 1.3.

Are the plug for the stepper motor and the stepper motor for E-ICV no.1 function connected?

NOT OK: Connect the plug or stepper motor and carry out an operational check.

1.3

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/10 and relay K02/5. NOT OK: Replace fuse and/or relay and test the functionality.

1.4 Are other diagnostic trouble codes (SIC 334202.14 and/or SIC 334203.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value at address SIC 36

Access address SIC 36 : SIC 36 –– Activating the E-ICV functions—Specification Without E-ICV:—Status ............................................................................................... E-ICV no.1 function switched on:— Status .......................................................................................................................... E-ICV no.2 function switched on:— Status .......................................................................................................................... E-ICV no.3 function switched on:— Status ..........................................................................................................................

OK: If the input value in address SIC 36 is correct, GO TO 3. 000 XX1

NOT OK: Enter the correct input and delete diagnostic trouble code.

X1X 1XX

– – –1/1

TM4726 (01NOV03)

211-SIC-112

6020 to 6920S tractors 022204

PN=898

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 1 (ICA 1). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

– – –1/1

4 Performing an operational check on the stepper motor E-ICV no.2

4.1

OK: E-ICV no.2 function is present: GO TO 4.2.

Perform an operational check on the E-ICV no.2. NOT OK: E-ICV no.2 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.2 • Ignition OFF. • Disconnect stepper motor (M12) for E-ICV no.1 function from plug X318. • Connect stepper motor plug X251 for E-ICV no.2 function to stepper motor (M12) for E-ICV no.1 function and carry out an operational check.

OK: If function for E-ICV no.1 is present again after the plug has been changed: GO TO Circuit test for E-ICV no. 1 stepper motor (M12). See Section 245, Group SIC in the Technical manual. NOT OK: If function for E-ICV no.1 is NOT present after the plug has been changed: Replace the stepper motor for E-ICV no.1, and recalibrate.

– – –1/1

SIC 334202.14 — E-ICV No.2, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334202.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.2 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. This diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334201.14 and/or SIC 334203.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if the SIC fails to receive an initialization report from the stepper motor after the ignition has been switched ON.

LX25546,0000455 –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-113

6020 to 6920S tractors 022204

PN=899

211 SIC ,113

SIC Diagnostic Trouble Codes Diagnostics The following is a possible cause: 211 SIC ,114

• Tractor is not equipped with an E-ICV (incorrect calibration value stored in address SIC 36). • Stepper motor for E-ICV no.2 is not connected. • Defective stepper motor plug X251. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/10 and relay K02/5) – The following diagnostic trouble codes are also saved: SIC 334201.14 and/or SIC 334203.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334201.14 and/or SIC 334203.14. • Defective stepper motor (M13) for the E-ICV no.2 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-114

6020 to 6920S tractors 022204

PN=900

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: GO TO 1.2. 211 OK: If the stepper motor SIC is connected: GO TO 1.3. ,115

1.2 Are the plugs for the stepper motor and the stepper motor for E-ICV no.2 function connected?

NOT OK: Connect the plug or stepper motor and carry out an operational check.

1.3

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/10 and relay K02/5. NOT OK: Replace fuse and/or relay and test the functionality.

1.4 Are other diagnostic trouble codes (SIC 334201.14 and/or SIC 334203.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value

Access address SIC 36: SIC 36 –– Activation of the E-ICV functions—Specification Without E-ICV:—Status ............................................................................................... E-ICV no.1 function switched on:— Status .......................................................................................................................... E-ICV no.2 function switched on:— Status .......................................................................................................................... E-ICV no.3 function switched on:— Status ..........................................................................................................................

OK: If the input value in address SIC 36 is correct, GO TO 3. 000 XX1

NOT OK: Enter the correct input and delete diagnostic trouble code.

X1X 1XX

– – –1/1

TM4726 (01NOV03)

211-SIC-115

6020 to 6920S tractors 022204

PN=901

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 2 (ICA 2). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

211 SIC ,116

– – –1/1

4 Performing an operational check on the stepper motor E-ICV no.1

4.1

OK: If there is an E-ICV no.1 function: GO TO 4.2.

Perform an operational check on the E-ICV no.1. NOT OK: If there is not any E-ICV no.1 function: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.2 • Ignition OFF. • Disconnect stepper motor (M13; for the E-ICV no.2 function) from plug X251. • Connect stepper motor plug (X318; for E-ICV no.1 function) to stepper motor (M13; for E-ICV no.2 function), and do an operational check.

OK: If function for E-ICV no.2 is present again after the plug has been changed: GO TO Circuit test for E-ICV no. 2 stepper motor (M13). See Section 245, Group SIC in the Technical manual. NOT OK: If there is no E-ICV no.2 function after the plug has been replaced: Replace the stepper motor for E-ICV no.2, and recalibrate.

– – –1/1

SIC 334203.14 — E-ICV No.3, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334203.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.3 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. This diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334201.14 and SIC 334202.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if the SIC fails to receive an initialization report from the stepper motor after the ignition has been switched ON.

LX25546,0000456 –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-116

6020 to 6920S tractors 022204

PN=902

SIC Diagnostic Trouble Codes Diagnostics The following is a possible cause: • Tractor is not equipped with an E-ICV (incorrect calibration value stored in address SIC 36). • Stepper motor for E-ICV no.3 is not connected. • Defective stepper motor plug X252. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/10 and relay K02/5) – The following diagnostic trouble codes are also saved: SIC 334202.14 and/or SIC 334203.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334201.14 and SIC 334202.14. • Defective stepper motor (M14) for the E-ICV no.3 function.

211 SIC ,117

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-117

6020 to 6920S tractors 022204

PN=903

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC ,118

NOT OK: GO TO 1.2.

1.2

OK: If the stepper motor is connected: GO TO 1.3.

Are the plugs for the stepper motor and the stepper motor for E-ICV no.3 function connected?

NOT OK: Connect the plug or stepper motor and carry out an operational check.

1.3

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/10 and relay K02/5. NOT OK: Replace fuse and/or relay and test the functionality.

1.4 Are other diagnostic trouble codes (SIC 334201.14 and/or SIC 334202.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value

Access address SIC 36: SIC 36 –– Activation of the E-ICV functions—Specification Without E-ICV:—Status ............................................................................................... E-ICV no.1 function switched on:— Status .......................................................................................................................... E-ICV no.2 function switched on:— Status .......................................................................................................................... E-ICV no.3 function switched on:— Status ..........................................................................................................................

OK: If the input value in address SIC 36 is correct, GO TO 3. 000 XX1

NOT OK: Enter the correct input and delete diagnostic trouble code.

X1X 1XX

– – –1/1

TM4726 (01NOV03)

211-SIC-118

6020 to 6920S tractors 022204

PN=904

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 3 (ICA 3). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

– – –1/1

4 Performing an operational check on the stepper motor E-ICV no.1

4.1

OK: If there is an E-ICV no.1 function: GO TO 4.2.

Perform an operational check on the E-ICV no.1. NOT OK: If there is not any E-ICV no.1 function: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.2 • Ignition OFF. • Disconnect stepper motor (M14; for the E-ICV no.3 function) from plug X252. • Connect stepper motor plug (X318; for E-ICV no.1 function) to stepper motor (M14; for E-ICV no.3 function), and do an operational check.

OK: If there is still an E-ICV no.3 function after the plug has been replaced: GO TO Circuit test for E-ICV no.3 stepper motor (M14). Section 245, Group SIC in the Technical manual. NOT OK: If there is no E-ICV no.3 function after the plug has been replaced: Replace the stepper motor for E-ICV no.3, and recalibrate.

– – –1/1

SIC 334204.14 — E-SCV No.1, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334204.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.1 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. This diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334204.14, SIC 334205.14 and/or SIC 334207.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if the SIC fails to receive an initialization report from the stepper motor after the ignition has been switched ON.

LX25546,0000457 –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-119

6020 to 6920S tractors 022204

PN=905

211 SIC ,119

SIC Diagnostic Trouble Codes Diagnostics The following is a possible cause: 211 SIC ,120

• Tractor is not equipped with an E-SCV (incorrect calibration value stored in address SIC 37). • Stepper motor for E-SCV no.1 is not connected. • Defective stepper motor plug X464. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/12 and relay K02/7) – The following diagnostic trouble code is also saved: SIC 334205.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334204.14, SIC 334205.14 and/or SIC 334207.14. • Defective stepper motor (A36) for the E-SCV no.1 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-120

6020 to 6920S tractors 022204

PN=906

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: GO TO 1.2. 211 OK: If the stepper motor SIC is connected: GO TO 1.3. ,121

1.2 Are the plugs for the stepper motor and the stepper motor for E-SCV no.1 function connected?

NOT OK: Connect the plug or stepper motor and carry out an operational check.

1.3

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/12 and relay K02/7. NOT OK: Replace fuse and/or relay and test the functionality.

1.4

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45).

Are other diagnostic trouble codes (SIC 334205.14, SIC 334206.14 and/or SIC 334207.14) saved that indicate a general problem with the power supply or with the 11-bit CAN BUS connection to the stepper motors?

NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value

Access address SIC 37: SIC 37 –– Activating the E-SCV functions 1 to 3—Specification Without E-SCV:—Status ............................................................................................. E-SCV no.1 function switched on:— Status .......................................................................................................................... E-SCV no.2 function switched on:— Status .......................................................................................................................... E-SCV no.3 function switched on:— Status ..........................................................................................................................

OK: If the input value in address SIC 37 is correct, GO TO 3. 000 XX1

NOT OK: Enter the correct input and delete diagnostic trouble code.

X1X 1XX

– – –1/1

TM4726 (01NOV03)

211-SIC-121

6020 to 6920S tractors 022204

PN=907

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 1 (SCA 1). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

211 SIC ,122

– – –1/1

4 Performing an operational check on the stepper motor E-SCV no.2

4.1

OK: If there is an E-SCV no.2 function: GO TO 4.2.

Perform an operational check on the E-SCV no.2. NOT OK: If there is not any E-SCV no.2 function: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.2 • Ignition OFF. • Disconnect stepper motor (A36; for the E-SCV no.1 function) from plug X464. • Connect stepper motor plug (X465; for E-SCV no.2 function) to stepper motor (A36; for E-SCV no.1 function), and do an operational check.

OK: If there is still an E-SCV no.1 function after the plug has been replaced: GO TO Circuit test for E-SCV no.1 stepper motor (A36). Section 245, Group SIC in the Technical manual. NOT OK: If there is no E-SCV no.1 function after the plug has been replaced: Replace the stepper motor for E-SCV no.1, and recalibrate.

– – –1/1

SIC 334205.14 — E-SCV No.2, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334205.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.2 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. This diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334204.14, SIC 334205.14 and/or SIC 334207.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if the SIC fails to receive an initialization report from the stepper motor after the ignition has been switched ON.

LX25546,0000458 –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-122

6020 to 6920S tractors 022204

PN=908

SIC Diagnostic Trouble Codes Diagnostics The following is a possible cause: • Tractor is not equipped with an E-SCV (incorrect calibration value stored in address SIC 37). • Stepper motor for E-SCV no.2 is not connected. • Defective stepper motor plug X465. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/12 and relay K02/7) – The following diagnostic trouble code is also saved: SIC 334204.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334204.14, SIC 334206.14 and/or SIC 334207.14. • Defective stepper motor (A37) for the E-SCV no.2 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-123

6020 to 6920S tractors 022204

PN=909

211 SIC ,123

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC ,124

NOT OK: GO TO 1.2.

1.2

OK: If the stepper motor is connected: GO TO 1.3.

Are the plugs for the stepper motor and the stepper motor for E-SCV no.2 function connected?

NOT OK: Connect the plug or stepper motor and carry out an operational check.

1.3

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/12 and relay K02/7. NOT OK: Replace fuse and/or relay and test the functionality.

1.4

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45).

Are other diagnostic trouble codes (SIC 334204.14, SIC 334206.14 and/or SIC 334207.14) saved that indicate a general problem with the power supply or with the 11-bit CAN BUS connection to the stepper motors?

NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value

Access address SIC 37: SIC 37 –– Activating the E-SCV functions 1 to 3—Specification Without E-SCV:—Status ............................................................................................. E-SCV no.1 function switched on:— Status .......................................................................................................................... E-SCV no.2 function switched on:— Status .......................................................................................................................... E-SCV no.3 function switched on:— Status ..........................................................................................................................

OK: If the input value in address SIC 37 is correct, GO TO 3. 000 XX1

NOT OK: Enter the correct input and delete diagnostic trouble code.

X1X 1XX

– – –1/1

TM4726 (01NOV03)

211-SIC-124

6020 to 6920S tractors 022204

PN=910

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 2 (SCA 2). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

– – –1/1

4 Performing an operational check on the stepper motor E-SCV no.1

4.1

OK: If there is an E-SCV no.1 function: GO TO 4.2.

Perform an operational check on the E-SCV no.1. NOT OK: If there is not any E-SCV no.1 function: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.2 • Ignition OFF. • Disconnect stepper motor (A37; for the E-SCV no.2 function) from plug X465. • Connect stepper motor plug X464 for E-SCV no.1 function to stepper motor (A37) for E-SCV no.2 function and carry out an operational check.

OK: If there is still an E-SCV no.2 function after the plug has been replaced: GO TO Circuit test for E-SCV no.2 stepper motor (A37). Section 245, Group SIC in the Technical manual. NOT OK: If there is no E-SCV no.2 function after the plug has been replaced: Replace the stepper motor for E-SCV no.2, and recalibrate.

– – –1/1

SIC 334206.14 — E-SCV No.3, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334206.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.3 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. This diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334204.14, SIC 334205.14 and/or SIC 334207.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if the SIC fails to receive an initialization report from the stepper motor after the ignition has been switched ON.

LX25546,0000459 –19–01AUG03–1/1

TM4726 (01NOV03)

211-SIC-125

6020 to 6920S tractors 022204

PN=911

211 SIC ,125

SIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 SIC ,126

• Tractor is not equipped with an E-SCV (incorrect calibration value stored in address SIC 37). • Stepper motor for E-SCV no.3 is not connected. • Defective stepper motor plug X466. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/11 and relay K02/6) – The following diagnostic trouble code is also saved: SIC 334207.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334204.14, SIC 334205.14 and/or SIC 334207.14. • Defective stepper motor (A38) for the E-SCV no.3 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-126

6020 to 6920S tractors 022204

PN=912

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: GO TO 1.2. 211 OK: If the stepper motor SIC is connected: GO TO 1.3. ,127

1.2 Are the plugs for the stepper motor and the stepper motor for E-SCV no.3 function connected?

NOT OK: Connect the plug or stepper motor and carry out an operational check.

1.3

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/11 and relay K02/6. NOT OK: Replace fuse and/or relay and test the functionality.

1.4

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45).

Are other diagnostic trouble codes (SIC 334204.14, SIC 334205.14 and/or SIC 334207.14) saved that indicate a general problem with the power supply or with the 11-bit CAN BUS connection to the stepper motors?

NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value

Access address SIC 37: SIC 37 –– Activating the E-SCV functions 1 to 3—Specification Without E-SCV:—Status ............................................................................................. E-SCV no.1 function switched on:— Status .......................................................................................................................... E-SCV no.2 function switched on:— Status .......................................................................................................................... E-SCV no.3 function switched on:— Status ..........................................................................................................................

OK: If the input value in address SIC 37 is correct, GO TO 3. 000 XX1

NOT OK: Enter the correct input and delete diagnostic trouble code.

X1X 1XX

– – –1/1

TM4726 (01NOV03)

211-SIC-127

6020 to 6920S tractors 022204

PN=913

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 3 (SCA 3). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

211 SIC ,128

– – –1/1

4 Performing an operational check on the stepper motor E-SCV no.4

4.1 Is the tractor equipped with E-SCV no.4?

OK: If the tractor IS equipped with E-SCV no.4: GO TO 4.2. NOT OK: If there is not any E-SCV no.4: 11-bit CAN BUS test (Section 213, Group 45).

4.2

OK: If there is an E-SCV no.4 function: GO TO 4.3.

Perform an operational check on the E-SCV no.4. NOT OK: If there is not any E-SCV no.4 function: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.3 • Ignition OFF. • Disconnect stepper motor (A38; for the E-SCV no.3 function) from plug X466. • Connect stepper motor plug (X467; for E-SCV no.4 function) to stepper motor (A38; for E-SCV no.3 function), and do an operational check.

OK: If there is still an E-SCV no.3 function after the plug has been replaced: GO TO Circuit test for E-SCV no.3 stepper motor (A38). Section 245, Group SIC in the Technical manual. NOT OK: If there is no E-SCV no.3 function after the plug has been replaced: Replace the stepper motor for E-SCV no.3, and recalibrate.

– – –1/1

TM4726 (01NOV03)

211-SIC-128

6020 to 6920S tractors 022204

PN=914

SIC Diagnostic Trouble Codes

SIC 334207.14 — E-SCV No.4, Stepper Motor Fails to Start

Diagnostic trouble code SIC 334207.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.4 and the SIC. Once the ignition is switched ON, the controller fails to establish contact with the stepper motor. This diagnostic trouble code triggers the alarm level: “Information”. If

diagnostic trouble codes SIC 334204.14, SIC 334205.14 and SIC 334206.14 are saved as well, this indicates a general problem with the 11-bit CAN BUS. This diagnostic trouble code only appears if the SIC fails to receive an initialization report from the stepper motor after the ignition has been switched ON.

LX25546,000045B –19–01AUG03–1/1

Diagnostics The following is a possible cause: • Tractor is not equipped with an E-SCV (incorrect calibration value stored in address SIC 38). • Stepper motor for E-SCV no.4 is not connected. • Defective stepper motor plug X467. – Power supply or 11-bit CAN BUS connection. • A general problem with the power supply to the stepper motors (fuse F03/11 and relay K02/6) – The following diagnostic trouble code is also saved: SIC 334206.14. • A general problem with the 11-bit CAN BUS connection or with the power supply. – The following diagnostic trouble codes are also saved: SIC 334204.14, SIC 334205.14 and SIC 334206.14. • Defective stepper motor (A39) for the E-SCV no.4 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, E-SCV / E-ICV Controller

– – –1/1

TM4726 (01NOV03)

211-SIC-129

6020 to 6920S tractors 022204

PN=915

211 SIC ,129

SIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SIC ,130

1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If the stepper motor is connected: GO TO 1.3.

Are the plugs for the stepper motor and the stepper motor for E-SCV no.4 function connected?

1.3

NOT OK: Connect the plug or stepper motor and carry out an operational check.

OK: Fuse and relay are OK, GO TO 1.4.

Check fuse F03/11 and relay K02/6. NOT OK: Replace fuse and/or relay and test the functionality.

1.4 Are other diagnostic trouble codes (SIC 334204.14, SIC 334205.14 and SIC 334206.14) saved that indicate a general problem with the power supply or with the 11-bit CAN BUS connection to the stepper motors?

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

2 Checking the input value

Access address SIC 38: SIC 38 –– Activating the E-SCV function 4—Specification Without E-SCV no 4:—Status ..................................................................................... 000 E-SCV no.4 function switched on:— Status .......................................................................................................................... 001

OK: If the input value in address SIC 38 is correct, GO TO 3. NOT OK: Enter the correct input and delete diagnostic trouble code.

– – –1/1

TM4726 (01NOV03)

211-SIC-130

6020 to 6920S tractors 022204

PN=916

SIC Diagnostic Trouble Codes 3 Checking the input value at identification address SIC 40

Check identification of stepper motor 4 (SCA 4). See: Address SIC 040 –– Calibration of Stepper Motor - Identification, Section 245, Group SIC in the Technical Manual.

OK: If the input value in address SIC 40 is correct, GO TO 4. NOT OK: Enter the correct stepper motor in SIC 40 (calibrate), and perform an operational check.

– – –1/1

4 Performing an operational check on the stepper motor E-SCV no.3

4.1

OK: If there is an E-SCV no.3 function: GO TO 4.2.

Perform an operational check on the E-SCV no.3. NOT OK: If there is not any E-SCV no.3 unction: GO TO 11-bit CAN BUS test (Section 213, Group 45).

4.2 • Ignition OFF. • Disconnect stepper motor (A38; for the E-SCV no.3 function) from plug X466. • Connect stepper motor plug (X466; for E-SCV no.3 function) to stepper motor (A39; for E-SCV no.4 function), and do an operational check.

OK: If there is still an E-SCV no.4 function after the plug has been replaced: GO TO Circuit test for E-SCV no.4 stepper motor (A39). Section 245, Group SIC in the Technical manual. NOT OK: If there is no E-SCV no.4 function after the plug has been replaced: Replace the stepper motor for E-SCV no.4, and recalibrate.

– – –1/1

SIC 334221.14 — E-ICV No.1, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334221.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.1 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000045D –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-131

6020 to 6920S tractors 022204

PN=917

211 SIC ,131

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following is a possible cause: 211 SIC ,132

• Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (M12) for the E-ICV no.1 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334201.14, SIC 334202.14 and/or SIC 334203.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-132

6020 to 6920S tractors 022204

PN=918

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-ICV no.2

2.1

OK: E-ICV no.2 function is present: GO TO 2.2.

Do an operational check on E-ICV no.2. NOT OK: E-ICV no.2 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

2.2 • Ignition OFF. • Disconnect stepper motor (M12; for the E-ICV no.1 function) from plug X318. • Connect stepper motor plug (X251; for E-ICV no.2 function) to stepper motor (M12; for E-ICV no.1 function), and do an operational check.

OK: If function for E-ICV no.1 is present again after the plug has been changed (fault cannot be reproduced): GO TO Circuit test for E-ICV no.1 stepper motor (M12). NOT OK: If function for E-ICV no.1 is NOT present after the plug has been changed: Replace the stepper motor for E-ICV no.1, and recalibrate.

– – –1/1

SIC 334222.14 — E-ICV No.2, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334222.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.2 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000045E –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-133

6020 to 6920S tractors 022204

PN=919

211 SIC ,133

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 SIC ,134

• Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (M13) for the E-ICV no.2 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334201.14, SIC 334202.14 and/or SIC 334203.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-134

6020 to 6920S tractors 022204

PN=920

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-ICV no.1

2.1

OK: E-ICV no.1 function is present: GO TO 2.2.

Do an operational check on E-ICV no.1. NOT OK: E-ICV no.1 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

2.2 • Ignition OFF. • Disconnect stepper motor (M13; for the E-ICV no.2 function) from plug X251. • Connect stepper motor plug (X318; for E-ICV no.1 function) to stepper motor (M13; for E-ICV no.2 function), and do an operational check.

OK: If function for E-ICV no.2 is present again after the plug has been changed (fault cannot be reproduced): GO TO Circuit test for E-ICV no. 2 stepper motor (M13). See Section 245, Group SIC in the Technical manual. NOT OK: If function for E-ICV no.2 is NOT present after the plug has been changed: Replace the stepper motor for E-ICV no.2, and recalibrate.

– – –1/1

SIC 334223.14 — E-ICV No.3, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334223.14 is saved if there is a problem in transferring data between the stepper motor for E-ICV no.3 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,000045F –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-135

6020 to 6920S tractors 022204

PN=921

211 SIC ,135

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following is a possible cause: 211 SIC ,136

• Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (M14) for the E-ICV no.3 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334201.14, SIC 334202.14 and/or SIC 334203.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-136

6020 to 6920S tractors 022204

PN=922

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-ICV no.1

2.1

OK: E-ICV no.1 function is present: GO TO 2.2.

Do an operational check on E-ICV no.1. NOT OK: E-ICV no.1 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

2.2 • Ignition OFF. • Disconnect stepper motor (M14; for the E-ICV no.3 function) from plug X252. • Connect stepper motor plug (X318; for E-ICV no.1 function) to stepper motor (M14; for E-ICV no.3 function), and do an operational check.

OK: If function for E-ICV no.3 is present again after the plug has been changed (fault cannot be reproduced): GO TO Circuit test for E-ICV no.3 stepper motor (M14). NOT OK: If function for E-ICV no.3 is NOT present after the plug has been changed: Replace the stepper motor for E-ICV no.3, and recalibrate.

– – –1/1

SIC 334224.14 — E-SCV No.1, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334224.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.1 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000460 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-137

6020 to 6920S tractors 022204

PN=923

211 SIC ,137

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following is a possible cause: 211 SIC ,138

• Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (A36) for the E-SCV no.1 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-138

6020 to 6920S tractors 022204

PN=924

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-SCV no.2

2.1

OK: E-SCV no.2 function is present: GO TO 2.2.

Do an operational check on E-SCV no.2. NOT OK: E-SCV no.2 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

2.2 • Ignition OFF. • Disconnect stepper motor (A36; for the E-SCV no.1 function) from plug X464. • Connect stepper motor plug (X465; for E-SCV no.2 function) to stepper motor (A36; for E-SCV no.1 function), and do an operational check.

OK: If function for E-SCV no.1 is present again after the plug has been changed (fault cannot be reproduced): GO TO Circuit test for E-SCV no.1 stepper motor (M36). NOT OK: If function for E-SCV no.1 is NOT present after the plug has been changed: Replace the stepper motor for E-SCV no.1, and recalibrate.

– – –1/1

SIC 334225.14 — E-SCV No.2, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334225.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.2 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000461 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-139

6020 to 6920S tractors 022204

PN=925

211 SIC ,139

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following is a possible cause: 211 SIC ,140

• Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (A37) for the E-SCV no.2 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-140

6020 to 6920S tractors 022204

PN=926

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-SCV no.1

2.1

OK: E-SCV no.1 function is present: GO TO 2.2.

Do an operational check on E-SCV no.1. NOT OK: E-SCV no.1 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

2.2 • Ignition OFF. • Disconnect stepper motor (A37; for the E-SCV no.2 function) from plug X465. • Connect stepper motor plug (X464; for E-SCV no.1 function) to stepper motor (A37; for E-SCV no.2 function), and do an operational check.

OK: If function for E-SCV no.2 is present again after the plug has been changed (fault cannot be reproduced): GO TO Circuit test for E-SCV no.2 stepper motor (M37). in Section 245, Group SIC in the Technical manual. NOT OK: If function for E-SCV no.2 is NOT present after the plug has been changed: Replace the stepper motor for E-SCV no.2, and recalibrate.

– – –1/1

SIC 334226.14 — E-SCV No.3, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334226.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.3 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000462 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-141

6020 to 6920S tractors 022204

PN=927

211 SIC ,141

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following is a possible cause: 211 SIC ,142

• Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (A38) for the E-SCV no.3 function. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334204.14, SIC 334205.14, SIC 334206.14 and/or SIC 334207.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-142

6020 to 6920S tractors 022204

PN=928

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-SCV no.4

2.1 Is the tractor equipped with E-SCV no.4?

OK: If the tractor IS equipped with E-SCV no.4: GO TO 2.2. NOT OK: E-SCV no.4 function is NOT present: GO TO 3.

2.2

OK: E-SCV no.4 function is present: GO TO 2.3.

Do an operational check on E-SCV no.4. NOT OK: E-SCV no.4 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

2.3 • Ignition OFF. • Disconnect stepper motor (A39; for the E-SCV no.4 function) from plug X467. • Connect stepper motor plug (X467; for E-SCV no.4 function) to stepper motor (A39; for E-SCV no.3 function), and do an operational check.

OK: If function for E-SCV no.3 is present again after the plug has been changed: GO TO Circuit test for E-SCV no.3 stepper motor (M38) in Section 245, Group SIC in the Technical manual. NOT OK: If function for E-SCV no.3 is NOT present after the plug has been changed: Replace the stepper motor for E-SCV no.3, and recalibrate.

– – –1/1

TM4726 (01NOV03)

211-SIC-143

6020 to 6920S tractors 022204

PN=929

211 SIC ,143

SIC Diagnostic Trouble Codes 3 Doing an operational check of stepper motor E-SCV no.1

3.1

OK: E-SCV no.1 function is present: GO TO 3.2.

Do an operational check on E-SCV no.1. NOT OK: E-SCV no.1 function is NOT present: Diagnostic trouble code SIC 334224.14 also appears. This diagnostic trouble code takes priority.

211 SIC ,144

3.2 • Ignition OFF. • Disconnect stepper motor (A36; for the E-SCV no.1 function) from plug X464. • Connect stepper motor plug (X464; for E-SCV no.1 function) to stepper motor (A38; for E-SCV no.3 function), and do an operational check.

OK: If function for E-SCV no.3 is present again after the plug has been changed: GO TO Circuit test for E-SCV no.3 stepper motor (M38) in Section 245, Group SIC in the Technical manual. NOT OK: If function for E-SCV no.3 is NOT present after the plug has been changed: Replace the stepper motor for E-SCV no.3, and recalibrate.

– – –1/1

SIC 334227.14 — E-SCV No.4, Stepper Motor Fails to Respond to Command from Controller

Diagnostic trouble code SIC 334227.14 is saved if there is a problem in transferring data between the stepper motor for E-SCV no.4 and the SIC. During operation, following a successful initialization (link made after ignition ON), the controller fails to establish

a connection to the stepper motor, or makes only intermittent contact (possibly due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000463 –19–01APR02–1/1

TM4726 (01NOV03)

211-SIC-144

6020 to 6920S tractors 022204

PN=930

SIC Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Harness problem caused by loose/bad/slid back contacts (loose connections) and/or bad ground connections. – Power supply circuit. – 11-bit CAN BUS circuit. • Defective stepper motor (A39) for the E-SCV no.4 function.

211 SIC ,145

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-SIC-200, Theory of Operation, controller for E-SCVs and E-ICVs. • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6120-6620) • “Series 300 selective control valves (electr. actuated) — Reconditioning” (6820-6920)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Are other diagnostic trouble codes (SIC 334204.14, SIC 334205.14, SIC 334206.14 and SIC 334207.14) saved that indicate a general problem with the power supply or in the 11-bit CAN BUS connection to the stepper motors?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 1.2.

OK: If other diagnostic trouble codes are saved: GO TO 11-bit CAN BUS test (Section 213, Group 45). NOT OK: If no other diagnostic trouble codes are saved: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SIC-145

6020 to 6920S tractors 022204

PN=931

SIC Diagnostic Trouble Codes 2 Doing an operational check of stepper motor E-SCV no.3

2.1

OK: E-SCV no.3 function is present: GO TO 2.2.

Do an operational check on E-SCV no.3. NOT OK: E-SCV no.3 function is NOT present: GO TO 11-bit CAN BUS test (Section 213, Group 45).

211 SIC ,146 2.2 • Ignition OFF. • Disconnect stepper motor (A39; for the E-SCV no.4 function) from plug X467. • Connect stepper motor plug (X466; for E-SCV no.3 function) to stepper motor (A39; for E-SCV no.4 function), and do an operational check.

OK: If function for E-SCV no.4 is present again after the plug has been changed (fault cannot be reproduced): GO TO Circuit test for E-SCV no.4 stepper motor (M39) in Section 245, Group SIC in the Technical manual. NOT OK: If function for E-SCV no.4 is NOT present after the plug has been changed: Replace the stepper motor for E-SCV no.4, and recalibrate.

– – –1/1

SIC 334240.14 — Controller Connected to Wrong Wiring Harness Connector

Diagnostic trouble code SIC 334240.14 is saved if the controller for electrically actuated SCVs detects a faulty signal in the circuit of the control unit

identification. The diagnostic trouble code triggers the alarm level: “Information”.

LX25546,0000464 –19–01OCT01–1/1

TM4726 (01NOV03)

211-SIC-146

6020 to 6920S tractors 022204

PN=932

SIC Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: • Wrong controller connected to SIC connector X456. • Open circuit at lead 728. • Defective SIC.

211 SIC ,147

Additional References: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

1.2 Is the correct control unit connected to connector X456?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: If the correct control unit is connected, GO TO 2. NOT OK: Connect the correct control unit and test its functionality.

– – –1/1

TM4726 (01NOV03)

211-SIC-147

6020 to 6920S tractors 022204

PN=933

SIC Diagnostic Trouble Codes 2 Checking the controller identification circuit (lead 728) 211 SIC ,148

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Repair as needed and carry out an operational test.

For circuit diagram see: • Reference 240-10-030, SE21-Electronic Actuation of SCVs. For component location and pin arrangement see SIC wiring harness W16: • Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

TM4726 (01NOV03)

211-SIC-148

6020 to 6920S tractors 022204

PN=934

Group SSU

SSU Diagnostic Trouble Codes SSU 000084.09 — Tractor Speed Signal Not Recognized

Diagnostic trouble code SSU 000084.09 is saved if no signal from the wheel speed sending unit can be

detected on the CAN BUS. Alarm level: CAUTION.

211 SSU 1

LX26156,0000184 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Wheel Speed Sending Unit”, (Section 40, Group 30 in the Repair manual) • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. • Diagnostic trouble codes that indicate a problem at the wheel speed sending unit must be processed first.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-1

6020 to 6920S tractors 022204

PN=935

SSU Diagnostic Trouble Codes 2 Check input address for configuration of wheel speed sender

- To test the signal, you have to drive the tractor.

OK: If there is a signal while the tractor is in motion, diagnosis is completed.

Access address SSU018: SSU018 –– Travel speed signal—Specification Start the engine, drive the tractor:— Speed .............................................................................................................. 00.00 km/h

211 SSU 2

NOT OK: GO TO 3

– – –1/1

3 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

SSU 000158.03 — SSU Power Supply (Unswitched Power) Too High

If battery voltage (unswitched power) rises above 16 volts for longer than 320 ms, diagnostic trouble code

SSU 000158.03 is triggered. Alarm level: CAUTION.

LX26156,00001AE –19–05AUG03–1/1

TM4726 (01NOV03)

211-SSU-2

6020 to 6920S tractors 022204

PN=936

SSU Diagnostic Trouble Codes Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

211 SSU 3

• Remove/Install the Alternator, (Section 40, Group 15 in the Repair manual)

– – –1/1

1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Checking the system voltage (BCU system voltage)

Access address BCU 32:

OK: Diagnosis completed.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15.

OK: Diagnosis completed.

• Check battery, refer to "Battery Checks", Section 240, Group 15. NOT OK: Recondition as required and carry out an operational test. – – –1/1

SSU 000158.04 — SSU Power Supply (Unswitched Power) Too Low

If battery voltage (unswitched power) drops below 9 volts for longer than 320 ms, diagnostic trouble code

SSU 000158.04 is triggered. Alarm level: CAUTION.

LX26156,00001AF –19–05AUG03–1/1

TM4726 (01NOV03)

211-SSU-3

6020 to 6920S tractors 022204

PN=937

SSU Diagnostic Trouble Codes Diagnostics Additional references: 211 SSU 4

• Electrical information: Reference 210-15-001, General References - Summary. • Remove/Install the Alternator, (Section 40, Group 15 in the Repair manual)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Checking the system voltage (BCU system voltage)

Access address BCU 32:

OK: Diagnosis completed.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit for bad, loose, widened or corroded contacts. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-SSU-4

6020 to 6920S tractors 022204

PN=938

SSU Diagnostic Trouble Codes

SSU 000162.02 — SSU Controller, Two Transmission Types Identified

If an incorrect transmission type (AutoPowr or PowrQuad, PowrQuad Plus and AutoQuad) is identified, diagnostic trouble code SSU 000162.02 is

triggered. This indicates that the entry in address SSU036 is incorrect. Alarm level: CAUTION.

211 SSU 5

LX26156,00001BF –19–05AUG03–1/1

Diagnostics

NOTE: The setting in address SSU 036 is automatically written by the SSU controller. If an SSU controller is replaced or installed in another tractor, address SSU 036 must be deleted (set to zero). – – –1/1

1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the transmission type (PowrQuad, PowrQuad Plus, AutoQuad or AutoPowr)

Access address SSU036:

OK: Diagnosis completed.

SSU036 Transmission type (PowrQuad, PowrQuad Plus, AutoQuad or AutoPowr)—Specification No transmission identified:—Status ................................................................................ AutoPowr transmission:—Status ..................................................................................... PowrQuad, PowrQuad Plus or AutoQuad transmission:—Status ...................................................................................................... Invalid data:—Status .......................................................................................................

0 1

NOT OK: Delete address SSU036 and carry out an operational check.

2 9

– – –1/1

TM4726 (01NOV03)

211-SSU-5

6020 to 6920S tractors 022204

PN=939

SSU Diagnostic Trouble Codes

SSU 000162.09 — SSU Controller, No Data Received from Transmission Controller (EPC or TCU)

211 SSU 6

If the information on transmission type (the entry in address SSU 036) is not accepted on the CAN BUS after four attempts, diagnostic trouble code SSU

000162.09 is triggered. This indicates a problem in the CAN BUS. Alarm level: CAUTION.

LX26156,0000185 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 260-20-001, Steering and Brakes, Operation - Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-6

6020 to 6920S tractors 022204

PN=940

SSU Diagnostic Trouble Codes 2 Checking the transmission type (PowrQuad, PowrQuad Plus, AutoQuad or AutoPowr)

Access address SSU036: SSU036 Transmission type (PowrQuad, PowrQuad Plus, AutoQuad or AutoPowr)—Specification No transmission identified:—Status ................................................................................ AutoPowr transmission:—Status ..................................................................................... PowrQuad, PowrQuad Plus or AutoQuad transmission:—Status ...................................................................................................... Invalid data:—Status .......................................................................................................

OK: If status “1” or “2” is displayed, diagnosis is completed. 0 1

NOT OK: GO TO 3. 211 SSU 7

2 9

– – –1/1

3 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

SSU 000177.09 — Hydraulic Oil Temperature Not Recognized

As AutoTrac can only function when transmission oil temperature is above 0°C, the information on transmission oil temperature is read out constantly on the CAN BUS. If, at the fourth attempt, the value can

still not be recognized on the CAN BUS, diagnostic trouble code 000177.09 is triggered. Alarm level: CAUTION.

LX26156,0000186 –19–30JUL03–1/1

TM4726 (01NOV03)

211-SSU-7

6020 to 6920S tractors 022204

PN=941

SSU Diagnostic Trouble Codes Diagnostics Additional references: 211 SSU 8

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 260-20-001, Steering and Brakes, Operation - Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Checking the transmission oil temperature (data from CAN BUS)

Access address SSU024:

OK: Diagnosis completed.

SSU024 Transmission oil temperature (data from CAN BUS)—Specification Switch ignition ON—Temperature .............................................................. above 00.0 °C

NOT OK: GO TO 3

– – –1/1

TM4726 (01NOV03)

211-SSU-8

6020 to 6920S tractors 022204

PN=942

SSU Diagnostic Trouble Codes 3 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

SSU 000237.31 — Basic Control Unit (BCU) is Not Transmitting Any Data to the SSU Controller

The SSU controller periodically sends a request to the Basic Control Unit (BCU). If no data is received from the BCU after a request, diagnostic trouble code SSU

000237.31 is triggered. Alarm level: CAUTION.

LX26156,000025C –19–13AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 260-20-001, Steering and Brakes, Operation - Summary of References. – – –1/1

TM4726 (01NOV03)

211-SSU-9

6020 to 6920S tractors 022204

PN=943

211 SSU 9

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SSU 10 1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

TM4726 (01NOV03)

211-SSU-10

6020 to 6920S tractors 022204

PN=944

SSU Diagnostic Trouble Codes 3 Checking the BCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

BCU –– plug X483/1 (W08)—Specification Power supply:—Positive (lead 571) ...................................................... 12 volts 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. CAN- (lead 935) .................................................................................................. 29-bit CAN BUS screen lines:—Lead 930- ..................................................................................................................... Lead 932+ ...........................................................................................................

at pin 23 at pin 44 at pin 21 at pin 20 at pin 43

BCU –– plug X483/2 (W08)—Specification Power supply:—Ground (lead 050) ....................................................................... at pin 1

– – –1/1

SSU 000628.02 — SSU Controller, Internal Fault (EEPROM)

If a fault occurs when the internal module (EEPROM) intervenes, diagnostic trouble code SSU 000628.02 is

triggered. Alarm level: CAUTION.

LX26156,00001AB –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

211-SSU-11

6020 to 6920S tractors 022204

PN=945

211 SSU 11

SSU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the SSU controller.

211 SSU 12

– – –1/1

SSU 000630.13 — SSU Controller Not Calibrated

Diagnostic trouble code SSU 000630.13 is saved if the previous calibration was not saved or the new SSU

controller has not been calibrated yet. Alarm level: CAUTION.

LX26156,0000187 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-12

6020 to 6920S tractors 022204

PN=946

SSU Diagnostic Trouble Codes 2 Calibrating the SSU controller

Before calibrating the SSU controller, see: Reference 245-SSU-001, Calibration and Input Addresses.

OK: Calibration successful. Diagnosis completed. NOT OK: Delete diagnostic trouble code and carry out an operational test. If diagnostic trouble code re-appears, replace the SSU and calibrate the new controller.

– – –1/1

SSU 000639.12 — SSU Controller, Internal Fault (CAN BUS)

Diagnostic trouble code SSU 000639.12 is saved if the data received by the SSU controller from the CAN

BUS are faulty or incomplete. Alarm level: Information.

LX26156,00001B5 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 260-20-001, Steering and Brakes, Operation - Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SSU-13

6020 to 6920S tractors 022204

PN=947

211 SSU 13

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SSU 14 1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: Replace the SSU controller.

– – –1/1

SSU 000639.13 — 29-bit CAN BUS (Tractor BUS), High Error Rate

Diagnostic trouble code SSU 000639.13 is saved when the SSU controller recognizes a very high error rate in the incoming CAN BUS (tractor BUS) messages. This

indicates a general problem in the CAN BUS. Alarm level: Information.

LX26156,00001B8 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SSU-14

6020 to 6920S tractors 022204

PN=948

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. SSU 15 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

TM4726 (01NOV03)

211-SSU-15

6020 to 6920S tractors 022204

PN=949

SSU Diagnostic Trouble Codes

SSU 000639.19 — 29-bit CAN BUS (Tractor BUS), Very High Error Rate

211 SSU 16

Diagnostic trouble code SSU 000639.19 is saved when the SSU controller recognizes a very high error rate in the incoming CAN BUS messages. This indicates a

general problem in the CAN BUS. Alarm level: Information.

LX26156,000025B –19–13AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-16

6020 to 6920S tractors 022204

PN=950

SSU Diagnostic Trouble Codes 2 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

SSU 001079.03 — Wheel Angle Sensor (WAS), Power Supply Too High

Diagnostic trouble code SSU 001079.03 is triggered if the power supply (for WAS) is over 5.25 volts for

longer than 320 ms. Alarm level: Information.

LX26156,0000188 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. OK: GO TO 2. – – –1/1

TM4726 (01NOV03)

211-SSU-17

6020 to 6920S tractors 022204

PN=951

211 SSU 17

SSU Diagnostic Trouble Codes 2 Checking the power supply to the wheel angle sensor (WAS)

Access address SSU004:

OK: GO TO 5.

SSU004 Power supply to the wheel angle sensor (WAS)—Specification Power supply:—Voltage ...................................................... between 4.75 and 5.25 volts

NOT OK: GO TO 3

211 SSU 18

– – –1/1

3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

TM4726 (01NOV03)

211-SSU-18

6020 to 6920S tractors 022204

PN=952

SSU Diagnostic Trouble Codes 5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

SSU 001079.04 — Wheel Angle Sensor (WAS), Power Supply Too Low

Diagnostic trouble code SSU 001079.04 is triggered if the power supply (for WAS) is less than 4.75 volts for longer than 320 ms. This indicates that the circuit is

open. Alarm level: Information.

LX26156,0000189 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. OK: GO TO 2. – – –1/1

2 Checking the power supply to the wheel angle sensor (WAS)

Access address SSU004:

OK: GO TO 5.

SSU004 Power supply to the wheel angle sensor (WAS)—Specification Switch ignition ON:—Voltage .............................................. between 4.75 and 5.25 volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-19

6020 to 6920S tractors 022204

PN=953

211 SSU 19

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 20

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-20

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=954

SSU Diagnostic Trouble Codes

SSU 001504.07 — Seat Switch, Signal Invalid

Diagnostic trouble code SSU 001504.07 is triggered if the seat switch reports “operator on seat” for longer

than 25.5 hours without interruption. Alarm level: Information.

211 SSU 21

LX26156,000018A –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 240-15-013, SE16A — Basic Control Unit (BCU) (Rear PTO and External Control)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: GO TO 2 – – –1/1

2 Checking the seat switch

Access address SSU063:

OK: Diagnosis completed.

SSU063 Status of seat switch—Specification Operator sitting on seat:—Status ................................................................................ 1XX Operator not on seat:—Status .................................................................................... 0XX No valid signal (faulty)—Status ................................................................................... 9XX

NOT OK: If status report is “9” or “1” even when there is no-one on the seat, GO TO 3; on tractors with PowrQuad, PowrQuad Plus and AutoQuad transmissions, GO TO 4

– – –1/1

TM4726 (01NOV03)

211-SSU-21

6020 to 6920S tractors 022204

PN=955

SSU Diagnostic Trouble Codes 3 Checking the seat switch (tractors with AutoPowr/IVT)

• Access address UIC 10. UIC 10 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ................................................................................ X1X Operator not sitting on seat:—Status .......................................................................... X0X

211 SSU 22

OK: • Type of error indicates a loose contact, GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual. NOT OK: GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual. – – –1/1

4 Checking the seat switch (tractors with PowrQuad Plus, AutoQuad or AutoQuad Plus)

Access address BCU008. BCU008 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ............................................................................. XXX1 Operator not sitting on seat:—Status ....................................................................... XXX0

OK: • Type of error indicates a loose contact, GO TO: Circuit/Harness Test for Seat Switch in Section 245, Group BCU. NOT OK: GO TO: Circuit/Harness Test for Seat Switch in Section 245, Group BCU.

– – –1/1

SSU 001504.09 — Seat Switch, Signal Not Received

If the information on the seat switch is not accepted on the CAN BUS after four attempts, diagnostic trouble code SSU 0001504.09 is triggered. This indicates a

problem in the CAN BUS. Alarm level: CAUTION.

LX26156,000025E –19–13AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SSU-22

6020 to 6920S tractors 022204

PN=956

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. SSU 23 OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Checking the status of the seat switch

Access address SSU063:

OK: Diagnosis completed.

SSU063 Status of seat switch—Specification Operator sitting on seat:—Status ................................................................................ 1XX Operator not on seat:—Status .................................................................................... 0XX No valid signal (faulty)—Status ................................................................................... 9XX

NOT OK: If the signals are not OK or status is “9”, GO TO 3. – – –1/1

3 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

TM4726 (01NOV03)

211-SSU-23

6020 to 6920S tractors 022204

PN=957

SSU Diagnostic Trouble Codes

SSU 001504.14 — No-one on Operator’s Seat While AutoSteer is Running

211 SSU 24

If the AutoSteer function is activated and there is no operator on the seat for longer than 2 seconds, diagnostic trouble code SSU 001504.14 is triggered. If

no operator can be recognized on the seat for longer than 7 seconds, the AutoSteer function is switched off. Alarm level: CAUTION.

LX26156,000018C –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the seat switch

Access address SSU063:

OK: Diagnosis completed.

SSU063 Status of seat switch—Specification Operator sitting on seat:—Status ................................................................................ 1XX Operator not on seat:—Status .................................................................................... 0XX No valid signal (faulty)—Status ................................................................................... 9XX

NOT OK: If status is “0XX” or “9XX” even although there was an operator on the seat, on tractors with AutoPowr/IVT, GO TO 3; on tractors with PowrQuad, PowrQuad Plus or AutoQuad transmissions, GO TO 4. – – –1/1

TM4726 (01NOV03)

211-SSU-24

6020 to 6920S tractors 022204

PN=958

SSU Diagnostic Trouble Codes 3 Checking the seat switch

• Access address UIC 10. UIC 10 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ................................................................................ X1X Operator not sitting on seat:—Status .......................................................................... X0X

OK: • Type of error indicates a loose contact, GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the 211 Technical Manual. SSU 25 NOT OK: GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual. – – –1/1

4 Checking the seat switch

Access address BCU008. BCU008 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ............................................................................. XXX1 Operator not sitting on seat:—Status ....................................................................... XXX0

OK: This fault indicates a problem in the CAN BUS. GO TO: Circuit/Harness Test for Seat Switch in Section 245, Group BCU. NOT OK: Do a Circuit/Harness Test for Seat Switch (see in Section 245, Group BCU).

– – –1/1

SSU 001807.02 — Steering Input Device (SID), Calibration Fault

Diagnostic trouble code SSU 001807.02 is triggered if false signals are sent to the SSU controller while steering input devices SID 1 or SID 2 are being

calibrated. Alarm level: CAUTION.

LX26156,0000194 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. Reference 245-SSU-001, Calibration and Input Addresses.

– – –1/1

TM4726 (01NOV03)

211-SSU-25

6020 to 6920S tractors 022204

PN=959

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 2.

211 SSU 26

– – –1/1

2 Checking the counts of steering input device SID 1 (B138)

• Start the engine. • Access address SSU007.

OK: GO TO 3.

SSU007 - Counts of steering input device SID 1 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

NOT OK: Change lines 997 and 995 in plugs X632-1 or X631-3 and do an operational check.

– Turn the steering wheel slowly to the right; the value displayed should slowly increase. – Turn the steering wheel slowly to the left; the value displayed should slowly decrease. – – –1/1

3 Checking the counts of steering input device SID 2 (B138)

• Start the engine. • Access address SSU008.

OK: Diagnosis completed.

SSU008 - Counts of steering input device SID 2 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

NOT OK: Change lines 971 and 988 in plugs X632-2 or X631-2 and do an operational check.

– Turn the steering wheel slowly to the right; the value displayed should slowly increase. – Turn the steering wheel slowly to the left; the value displayed should slowly decrease. – – –1/1

SSU 001807.03 — Steering Input Device SID 1, Voltage Too High

Diagnostic trouble code SSU 001807.03 is triggered if the power supply for steering input device SID 1 is

over 5.25 volts for longer than 320 ms. Alarm level: Information.

LX26156,000018D –19–30JUL03–1/1

TM4726 (01NOV03)

211-SSU-26

6020 to 6920S tractors 022204

PN=960

SSU Diagnostic Trouble Codes Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

211 SSU 27

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the power supply for steering input device SID 1

Access address SSU005:

OK: GO TO 5.

SSU005 Power supply for steering input device SID 1—Specification Power supply:—Voltage ...................................................... between 4.75 and 5.25 volts

NOT OK: GO TO 3

– – –1/1

TM4726 (01NOV03)

211-SSU-27

6020 to 6920S tractors 022204

PN=961

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 28

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-28

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=962

SSU Diagnostic Trouble Codes

SSU 001807.04 — Steering Input Device SID 1, Voltage Too Low

Diagnostic trouble code SSU 001807.04 is triggered if the power supply (for SID) is less than 4.75 volts for longer than 320 ms. This indicates that the circuit is

open. Alarm level: Information.

211 SSU 29

LX26156,000018E –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. OK: GO TO 2. – – –1/1

2 Checking the power supply for steering input device SID 1

Access address SSU005:

OK: GO TO 5.

SSU005 Power supply for steering input device SID 1—Specification Switch ignition ON:—Voltage .............................................. between 4.75 and 5.25 volts

NOT OK: GO TO 3

– – –1/1

TM4726 (01NOV03)

211-SSU-29

6020 to 6920S tractors 022204

PN=963

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 30

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-30

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=964

SSU Diagnostic Trouble Codes

SSU 001807.05 — Steering Input Device SID 1, Current Too Low

Diagnostic trouble code SSU 001807.05 is generated if less than 4 mA flow to steering input device SID 1 for longer than 320 ms. This indicates that the circuit is

open. Alarm level: Information.

211 SSU 31

LX26156,000018F –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the current at steering input device SID 1

Access address SSU033:

OK: GO TO 5.

SSU033 Current at steering input device SID 1—Specification Switch ignition ON:—Current .................................................. between 4 mA and 20 mA

NOT OK: GO TO 3

– – –1/1

TM4726 (01NOV03)

211-SSU-31

6020 to 6920S tractors 022204

PN=965

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 32

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-32

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=966

SSU Diagnostic Trouble Codes

SSU 001807.06 — Steering Input Device SID 1, Current Too High

Diagnostic trouble code SSU 001807.06 is generated if more than 20 mA flow to steering input device SID 1

for longer than 320 ms. Alarm level: Information.

211 SSU 33

LX26156,0000190 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the current at steering input device SID 1

Access address SSU033:

OK: GO TO 5.

SSU033 Current at steering input device SID 1—Specification Switch ignition ON:—Current .................................................. between 4 mA and 20 mA

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-33

6020 to 6920S tractors 022204

PN=967

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 34

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-34

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=968

SSU Diagnostic Trouble Codes

SSU 001807.10 — The Signals from Steering Input Devices SID 1 and SID 2 are Unequal

Diagnostic trouble code SSU 001807.10 is triggered if the values received from steering input device SID 1 (address SSU007) and steering input device SID 2 (address SSU008) are different by more than 20

counts. This indicates a problem in steering input device SID 1. Alarm level: CAUTION.

211 SSU 35

LX26156,0000191 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-35

6020 to 6920S tractors 022204

PN=969

SSU Diagnostic Trouble Codes 2 Checking the counts of steering input device SID 1 and SID 2 (B138) 211 SSU 36

• Start the engine. • Access addresses SSU007 and SSU008. SSU007 - Counts of steering input device SID 1 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

OK: If the values do NOT differ from each other by more than 20 counts, GO TO 5. NOT OK: GO TO 3.

SSU008 - Counts of steering input device SID 2 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000 – Slowly turn the steering wheel to the left and right, at the same time checking whether the values deviate by more than 20 counts.

– – –1/1

3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

TM4726 (01NOV03)

211-SSU-36

6020 to 6920S tractors 022204

PN=970

SSU Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

SSU 001807.14 — Malfunction at Steering Input Device SID 1

Diagnostic trouble code SSU 001807.14 is triggered if the values received by the SSU controller (signals from

steering input device SID 1) are faulty. Alarm level: Information.

LX26156,0000193 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

211-SSU-37

6020 to 6920S tractors 022204

PN=971

211 SSU 37

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SSU 38

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the counts of steering input device SID 1 (B138)

• Start the engine. • Access addresses SSU007 and SSU008.

OK: If the values do NOT differ, GO TO 5.

SSU007 - Counts of steering input device SID 1 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

NOT OK: If the type of error indicates a loose contact, GO TO 3.

SSU008 - Counts of steering input device SID 2 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000 – Slowly turn the steering wheel several times to the right and left. Note the values with the wheel at left full-lock, then turn the wheel to right full-lock and note the values there. The values should be the same in both cases.

– – –1/1

TM4726 (01NOV03)

211-SSU-38

6020 to 6920S tractors 022204

PN=972

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 39 for Steering Input Device (B138), see 245-SSU.

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-39

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=973

SSU Diagnostic Trouble Codes

SSU 299433.09 — No Signal Received from Reverse Drive Lever (AutoPowr/IVT Transmission)

211 SSU 40

If the information on the reverse drive lever is not accepted on the CAN BUS after four attempts, diagnostic trouble code SSU 299433.09 is triggered.

This indicates a problem in the CAN BUS. Alarm level: CAUTION.

LX26156,00001C2 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-40

6020 to 6920S tractors 022204

PN=974

SSU Diagnostic Trouble Codes 2 Checking the status of the reverse drive lever

• With AutoPowr/IVT transmission, the display appears only when the tractor starts to move.

OK: Diagnosis completed.

Access address SSU017:

NOT OK: GO TO 3.

SSU017 Status of reverse drive lever—Specification Reverse drive lever in “Neutral”, only on tractors with PowrQuad Plus, AutoQuad or AutoQuad Plus transmission—Status .................................................................................................... n Reverse drive lever in “park” position:— Status .............................................................................................................................. P Reverse drive lever in “forward” position:—Status ............................................................................................................. F Reverse drive lever in “reverse” position:—Status .............................................................................................................. r

211 SSU 41

– – –1/1

3 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

SSU 523425.09 — No Signal Received from Reverse Drive Lever

If the information on the reverse drive lever is not accepted on the CAN BUS after four attempts, diagnostic trouble code SSU 523425.09 is triggered.

This indicates a problem in the CAN BUS. Alarm level: CAUTION.

LX26156,000025A –19–13AUG03–1/1

TM4726 (01NOV03)

211-SSU-41

6020 to 6920S tractors 022204

PN=975

SSU Diagnostic Trouble Codes Diagnostics Additional references: 211 SSU 42

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-42

6020 to 6920S tractors 022204

PN=976

SSU Diagnostic Trouble Codes 2 Checking the status of the reverse drive lever

• With AutoPowr/IVT transmission, the “reverse” or “forward” display appears only when the tractor starts to move.

OK: Diagnosis completed.

Access address SSU017:

NOT OK: GO TO 3

SSU017 Status of reverse drive lever—Specification Reverse drive lever in “Neutral”, only on tractors with PowrQuad Plus, AutoQuad or AutoQuad Plus transmission—Status .................................................................................................... n Reverse drive lever in “park” position:— Status .............................................................................................................................. P Reverse drive lever in “forward” position:—Status ............................................................................................................. F Reverse drive lever in “reverse” position:—Status .............................................................................................................. r

211 SSU 43

– – –1/1

3 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

SSU 523436.14 — SSU Controller, Internal Fault (Watchdog Timeout)

If an internal fault occurs in the SSU controller, diagnostic trouble code SSU 523436.14 is triggered. Alarm level: CAUTION.

LX26156,00001A9 –19–05AUG03–1/1

TM4726 (01NOV03)

211-SSU-43

6020 to 6920S tractors 022204

PN=977

SSU Diagnostic Trouble Codes Diagnostics Additional references: 211 SSU 44

• Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the SSU controller.

– – –1/1

SSU 523651.02 — SSU Controller, Internal Fault (Stack Overflow)

If an internal fault occurs in the SSU controller, diagnostic trouble code SSU 523651.02 is triggered. Alarm level: CAUTION.

LX26156,00001AA –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

211-SSU-44

6020 to 6920S tractors 022204

PN=978

SSU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active 211 (code is regenerated after SSU it has been deleted and 45 the ignition switched ON/OFF): Replace the SSU controller.

– – –1/1

SSU 523654.09 — AutoTrac Text Display Not Activated

If the entry in address SSU075 (activation of the AutoTrac text display) is still not accepted on the CAN BUS after four attempts, diagnostic trouble code

523654.09 is triggered. Alarm level: CAUTION.

LX26156,000025D –19–13AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-45

6020 to 6920S tractors 022204

PN=979

SSU Diagnostic Trouble Codes 2 Checking the activation of the AutoTrac text display

Access address SSU075:

OK: If the entry is “1”, diagnosis is completed.

SSU075 Activation of the AutoTrac text display—Specification Display active:—Status ................................................................................................... 1 Display not active:—Status ............................................................................................. 0

211 SSU 46

NOT OK: If the entry is “0”, modify the entry and do an operational check. – – –1/1

SSU 523698.09 — No Signal Received from GreenStar

If no exchange of data takes place with GreenStar or none of the relevant signals can be detected on the CAN BUS, diagnostic trouble code SSU 523698.09 is triggered. Alarm level: CAUTION. .

LX26156,000025F –19–13AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-SSU-46

6020 to 6920S tractors 022204

PN=980

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 First deal with any diagnostic trouble codes that indicate a problem with GreenStar. Do any such diagnostic trouble codes exist?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. SSU 47 OK: Deal with any diagnostic trouble codes that have priority NOT OK: GO TO 1.3

1.3 - A general 29-bit CAN BUS problem Is diagnostic trouble code BIF 000639.02 additionally stored?

OK: Diagnostic trouble code BIF 000639.02 is additionally stored, refer to the diagnostic trouble code procedure BIF 000639.02 - 29-bit CAN BUS, open circuit (Section 211, Group BIF). NOT OK: No diagnostic trouble code is saved that indicates a general problem in the 29-bit CAN BUS: GO TO 2. – – –1/1

2 Checking the SSU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

SSU –– plug X631/2 (W51)—Specification Power supply (fuses F06_14, F06_15):— Positive (lead 967) ................................................................................ 12 volts at pin L1 Positive (ELX with ignition ON) (lead 968) ...................................................................................................... 12 volts at pin M1 Power supply:—Ground (lead 050) ...................................................... at pins L2 and M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin A1 CAN- (lead 935) .................................................................................................. at pin B1

– – –1/1

TM4726 (01NOV03)

211-SSU-47

6020 to 6920S tractors 022204

PN=981

SSU Diagnostic Trouble Codes

SSU 523766.02 — Invalid Entry for System Activation

211 SSU 48

Diagnostic trouble code SSU 523766.02 is triggered if the system has been de-activated at address SSU039. Alarm level: CAUTION.

LX26156,0000195 –19–30JUL03–1/1

Diagnostics

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the system activation code

Access address SSU039:

OK: Diagnosis completed.

SSU039 System activation code—Specification Switch ignition ON:—Code number ............................................... between 001 and 999

NOT OK: If the code number is “000”, the system is locked out. Contact your nearest dealer.

– – –1/1

TM4726 (01NOV03)

211-SSU-48

6020 to 6920S tractors 022204

PN=982

SSU Diagnostic Trouble Codes

SSU 523767.02 — AutoTrac Resume Switch, Fault in the Engagement Signal

The switch that activates AutoTrac consists of a changeover contact, which allows the engagement signal to be checked. If a faulty engagement signal is

detected, diagnostic trouble code SSU 523767.02 is triggered. Alarm level: CAUTION.

211 SSU 49

LX26156,00001C1 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the AutoTrac engagement signal

Access address SSU061:

OK: GO TO 5.

SSU061 AutoTrac engagement signal—Specification Switch actuated:—Status ............................................................................................ X1X Switch not actuated:—Status ...................................................................................... X0X Invalid signal:—Status ................................................................................................. X9X

NOT OK: If the re-action is incorrect or status is “9”, GO TO 3. – – –1/1

TM4726 (01NOV03)

211-SSU-49

6020 to 6920S tractors 022204

PN=983

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the AutoTrac resume switch:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for AutoTrac Resume Switch (S123), see 245-SSU.

211 SSU 50

LX1025922 –UN–07OCT03

AutoTrac resume switch S123—AutoTrac resume switch

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for AutoTrac Resume Switch (S123), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for AutoTrac Resume Switch (S123), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for AutoTrac Resume Switch (S123) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do a Circuit/Harness Test for AutoTrac Resume Switch (S123), see 245-SSU.

211-SSU-50

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=984

SSU Diagnostic Trouble Codes

SSU 523795.02 — Electro-Hydraulic Steering Valve, Fault during Calibration

If a left/right discrepancy is detected (signals not reflecting actual steering direction) during calibration, or if the signal from the wheel angle sensor is too low

at right or left full-lock, diagnostic trouble code SSU 523795.02 is triggered. Alarm level: CAUTION.

211 SSU 51

LX26156,00001B1 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Repeating the calibration

Repeat calibration of the SSU controller and follow the calibration instructions, see: Reference 245-SSU-001, Calibration and Input Addresses.

OK: Diagnosis completed. NOT OK: Check the hydraulic connections on the steering cylinder. Moving the steering wheel to the left or right must result in the relevant movement at the axle.

– – –1/1

TM4726 (01NOV03)

211-SSU-51

6020 to 6920S tractors 022204

PN=985

SSU Diagnostic Trouble Codes

SSU 523795.10 — Electro-Hydraulic Steering Valve, Control Signal Not in Valid Range

211 SSU 52

The electro-hydraulic steering valve receives a control signal from the SSU controller, which can also request information on the position of the valve. If the control signal is not in the valid range (over 85% or under

15% of the total range), diagnostic trouble code SSU 523795.10 is triggered. Alarm level: CAUTION.

LX26156,00001BD –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the function of the electro-hydraulic steering valve

OK: GO TO 5. CAUTION: Stay well clear of the front wheels and prevent access to the danger area, as the steering (front wheels) moves of its own accord!

NOT OK: GO TO 3.

• Engage parking lock • Start the engine. • If the steering wheel is actuated manually, the process is interrupted. Access address SSU030: SSU030 Input value at electro-hydraulic steering valve—Specification Input value left:—Value ............................................................................................ 60% Input value right:—Value .......................................................................................... 40%

– – –1/1

TM4726 (01NOV03)

211-SSU-52

6020 to 6920S tractors 022204

PN=986

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the AutoTrac resume switch:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 53 for AutoTrac Resume Switch (S123), see 245-SSU.

LX1025922 –UN–07OCT03

AutoTrac resume switch S123—AutoTrac resume switch

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for AutoTrac Resume Switch (S123), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for AutoTrac Resume Switch (S123), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for AutoTrac Resume Switch (S123) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do a Circuit/Harness Test for AutoTrac Resume Switch (S123), see 245-SSU.

211-SSU-53

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=987

SSU Diagnostic Trouble Codes

SSU 523795.12 — Error Identification at Electro-Hydraulic Steering Valve

211 SSU 54

The electro-hydraulic steering valve can send error information to the SSU controller. Diagnostic trouble code SSU 523795.12 can be triggered for a number of different reasons. • Short circuit in 5-volt power supply to

electro-hydraulic steering valve. • Open circuit Alarm level: CAUTION.

LX26156,0000199 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Is diagnostic trouble code SSU 523810.01 also present? ❒ If system voltage (ELX) is disrupted, then diagnostic trouble codes SSU 523795.12 and SSU 523810.01 are triggered, whereby diagnostic trouble code SSU 523810.01 must be dealt with first.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Deal with diagnostic trouble code SSU 523810.01 NOT OK: GO TO 2 – – –1/1

2 Checking the function of the electro-hydraulic steering valve

OK: GO TO 5. CAUTION: Stay well clear of the front wheels and prevent access to the danger area, as the steering (front wheels) moves of its own accord!

NOT OK: GO TO 3

• Engage parking lock • Start the engine. • If the steering wheel is actuated manually, the process is interrupted. Access address SSU030: SSU030 Input value at electro-hydraulic steering valve—Specification Input value left:—Value ............................................................................................ 60% Input value right:—Value .......................................................................................... 40%

– – –1/1

TM4726 (01NOV03)

211-SSU-54

6020 to 6920S tractors 022204

PN=988

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the AutoTrac resume switch:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 55 for AutoTrac Resume Switch (S123), see 245-SSU.

LX1025922 –UN–07OCT03

AutoTrac resume switch S123—AutoTrac resume switch

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for AutoTrac Resume Switch (S123), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for AutoTrac Resume Switch (S123), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for AutoTrac Resume Switch (S123) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do a Circuit/Harness Test for AutoTrac Resume Switch (S123), see 245-SSU.

211-SSU-55

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=989

SSU Diagnostic Trouble Codes

SSU 523795.13 — Electro-Hydraulic Steering Valve, Calibration Error

211 SSU 56

If excessive free-travel is detected during calibration (play at the steering cylinder and/or valve), diagnostic

trouble code SSU 523795.13 is triggered. Alarm level: Information.

LX26156,000019A –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Calibrating with front axle raised

Raise the front axle, delete the diagnostic trouble code and calibrate the SSU controller.

OK: Diagnosis completed.

Before raising the front axle, comply with the warning instructions; see: Use Proper Lifting Equipment in Section 210, Group 05, and Support Machine Properly in Section 210, Group 05.

NOT OK: If there is a mechanical or hydraulic problem at the steering cylinder or steering valve, see Reference 260-15-040, Checking the Steering Valve and Reference 260-10-010, Steering Check.

Is calibration with raised front axle completed without any diagnostic trouble codes?

– – –1/1

TM4726 (01NOV03)

211-SSU-56

6020 to 6920S tractors 022204

PN=990

SSU Diagnostic Trouble Codes

SSU 523810.01 — Abrupt Change in the SSU System Voltage (ELX)

If there is an abrupt change (jump) in the ELX voltage, diagnostic trouble code SSU 523810.01 is triggered. Alarm level: CAUTION.

211 SSU 57

LX26156,000019C –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2 Check fuses F06_14 and F14_15

OK: GO TO 1.2

Are the two fuses OK?

NOT OK: Replace the fuses as needed and perform an operational test.

1.3 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Checking the system voltage (BCU system voltage)

Access address BCU 32:

OK: Diagnosis completed.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-57

6020 to 6920S tractors 022204

PN=991

SSU Diagnostic Trouble Codes 3 Additional checks and assessment of intermittent faults

211 SSU 58

If the type of error indicates a loose contact or a blown fuse:

OK: Diagnosis completed.

• For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

SSU 523821.02 — SSU Controller, Incorrect Input Value (Tractor Serial Number)

If there is an incorrect entry for the tractor serial number in address SSU248, diagnostic trouble code

SSU 523821.02 is triggered. Alarm level: CAUTION.

LX26156,000019B –19–30JUL03–1/1

Diagnostics

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the tractor serial number

Access address SSU248:

OK: Diagnosis completed.

Tractor serial number—Specification Serial number—Status ............................................................................. 000000-999999

NOT OK: Write the correct tractor serial number, and do an operational check.

– – –1/1

TM4726 (01NOV03)

211-SSU-58

6020 to 6920S tractors 022204

PN=992

SSU Diagnostic Trouble Codes

SSU 523824.03 — Steering Input Device SID 2, Voltage Too High

Diagnostic trouble code SSU 523824.03 is triggered if the power supply for steering input device SID 2 is

over 5.25 volts for longer than 320 ms. Alarm level: Information.

211 SSU 59

LX26156,000019D –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the power supply for steering input device SID 2

Access address SSU006:

OK: GO TO 5.

SSU006 Power supply for steering input device SID 2—Specification Power supply:—Voltage ...................................................... between 4.75 and 5.25 volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-59

6020 to 6920S tractors 022204

PN=993

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 60

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-60

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=994

SSU Diagnostic Trouble Codes

SSU 523824.04 — Steering Input Device SID 2, Voltage Too Low

Diagnostic trouble code SSU 523824.04 is triggered if the power supply (for SID) is less than 4.75 volts for longer than 320 ms. This indicates that the circuit is

open. Alarm level: Information.

211 SSU 61

LX26156,000019E –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. OK: GO TO 2. – – –1/1

2 Checking the power supply for steering input device SID 2

Access address SSU006:

OK: GO TO 5.

SSU006 Power supply for steering input device SID 1—Specification Switch ignition ON:—Voltage ................................................ between 4.75 V and 5.25 V

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-61

6020 to 6920S tractors 022204

PN=995

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 62

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-62

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=996

SSU Diagnostic Trouble Codes

SSU 523824.05 — Steering Input Device SID 2, Current Too Low

Diagnostic trouble code SSU 523824.05 is generated if less than 4 mA flow to steering input device SID 2 for

longer than 320 ms. Alarm level: Information.

211 SSU 63

LX26156,000019F –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 240-10-045, SE35-Automatic steering system (AutoTrac)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the current at steering input device SID 2

Access address SSU034:

OK: GO TO 5.

SSU034 Current at steering input device SID 2—Specification Switch ignition ON:—Current .................................................. between 4 mA and 20 mA

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-63

6020 to 6920S tractors 022204

PN=997

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 64

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-64

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=998

SSU Diagnostic Trouble Codes

SSU 523824.06 — Steering Input Device SID 2, Current Too High

Diagnostic trouble code SSU 523824.06 is generated if more than 20 mA flow to steering input device SID 2

for longer than 320 ms. Alarm level: Information.

211 SSU 65

LX26156,00001A0 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 240-10-045, SE35-Automatic steering system (AutoTrac)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the current at steering input device SID 2

Access address SSU034:

OK: GO TO 5.

SSU034 Current at steering input device SID 2—Specification Switch ignition ON:—Current .................................................. between 4 mA and 20 mA

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-65

6020 to 6920S tractors 022204

PN=999

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211 SSU 66

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-66

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1000

SSU Diagnostic Trouble Codes

SSU 523824.10 — The Signals from Steering Input Devices SID 2 and SID 1 are Unequal

Diagnostic trouble code SSU 523824.10 is triggered if the values received from steering input device SID 1 (address SSU007) and steering input device SID 2 (address SSU008) are different by more than 20

counts. This indicates a problem in steering input device SID2. Alarm level: CAUTION.

211 SSU 67

LX26156,00001A1 –19–30JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 240-10-045, SE35-Automatic steering system (AutoTrac)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-67

6020 to 6920S tractors 022204

PN=1001

SSU Diagnostic Trouble Codes 2 Checking the counts of steering input device SID 1 and SID 2 (B138) 211 SSU 68

• Start the engine. • Access addresses SSU007 and SSU008. SSU007 - Counts of steering input device SID 1 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

OK: If the values do NOT differ from each other by more than 20 counts, GO TO 5. NOT OK: GO TO 3.

SSU008 - Counts of steering input device SID 2 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000 – Slowly turn the steering wheel to the left and right, at the same time checking whether the values deviate by more than 20 counts.

– – –1/1

3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

TM4726 (01NOV03)

211-SSU-68

6020 to 6920S tractors 022204

PN=1002

SSU Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

SSU 523824.14 — Malfunction at Steering Input Device SID 2

Diagnostic trouble code SSU 523824.14 is triggered if the values received by the SSU controller (signals from

steering input device SID 2) are faulty. Alarm level: Information.

LX26156,00001A3 –19–31JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 240-10-045, SE35-Automatic steering system (AutoTrac)

– – –1/1

TM4726 (01NOV03)

211-SSU-69

6020 to 6920S tractors 022204

PN=1003

211 SSU 69

SSU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 SSU 70

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the counts of steering input device SID 2 (B138)

• Start the engine. • Access addresses SSU007 and SSU008.

OK: If the values do NOT differ, GO TO 5.

SSU007 - Counts of steering input device SID 1 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

NOT OK: GO TO 3.

SSU008 - Counts of steering input device SID 2 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000 – Slowly turn the steering wheel several times to the right and left. Note the values with the wheel at left full-lock, then turn the wheel to right full-lock and note the values there. The values should be the same in both cases.

– – –1/1

TM4726 (01NOV03)

211-SSU-70

6020 to 6920S tractors 022204

PN=1004

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 71 for Steering Input Device (B138), see 245-SSU.

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

211-SSU-71

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1005

SSU Diagnostic Trouble Codes

SSU 523826.00 — Signal from the Wheel Angle Sensor (WAS) on Channel 1 Too High

211 SSU 72

If the voltage at signal line 987 of the wheel angle sensor (WAS) channel 1 is over 4.5 volts for longer than 320 ms, diagnostic trouble code SSU 523826.00

is triggered. Alarm level: Information.

LX26156,00001A4 –19–31JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the channel 1 signal from the wheel angle sensor (WAS)

Access address SSU009:

OK: GO TO 5.

SSU009 Channel 1 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ......................................................................... 3.5 (+-0.4) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 1.0 (+-0.4) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 2.0-2.2 (+-0.4) volts

NOT OK: GO TO 3

– – –1/1

TM4726 (01NOV03)

211-SSU-72

6020 to 6920S tractors 022204

PN=1006

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 73 for Wheel Angle Sensor (B139), see 245-SSU.

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-73

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1007

SSU Diagnostic Trouble Codes

SSU 523826.01 — Signal from the Wheel Angle Sensor (WAS) on Channel 1 Too Low

211 SSU 74

If the voltage at the signal lines of the wheel angle sensor (WAS) channel 1 is under 0.5 volts for longer than 320 ms, diagnostic trouble code SSU 523826.01

is triggered. This indicates that the circuit is open. Alarm level: Information.

LX26156,00001A5 –19–31JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the channel 1 signal from the wheel angle sensor (WAS)

Access address SSU009:

OK: GO TO 5.

SSU009 Channel 1 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ......................................................................... 3.5 (+-0.4) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 1.0 (+-0.4) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 2.0-2.2 (+-0.4) volts

NOT OK: GO TO 3

– – –1/1

TM4726 (01NOV03)

211-SSU-74

6020 to 6920S tractors 022204

PN=1008

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 75 for Wheel Angle Sensor (B139), see 245-SSU.

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-75

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1009

SSU Diagnostic Trouble Codes

SSU 523826.02 — Wheel Angle Sensor (WAS), Fault During Calibration

211 SSU 76

Diagnostic trouble code SSU 523826.02 is triggered if false signals are sent to the SSU controller while the

wheel angle sensor (WAS) is being calibrated. Alarm level: CAUTION.

LX26156,00001B6 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-76

6020 to 6920S tractors 022204

PN=1010

SSU Diagnostic Trouble Codes 2 Checking the channel 1 and 2 signals from the wheel angle sensor (WAS)

Access SSU901 - Channel 1 and 2 signals from the wheel angle sensor (WAS) or addresses SSU009 and SSU010:

OK: GO TO 5. NOT OK: GO TO 3

SSU009 Channel 1 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ......................................................................... 3.5 (+-0.4) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 1.0 (+-0.4) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 2.0-2.2 (+-0.4) volts

211 SSU 77

SSU010 Channel 2 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ....................................................................... 1.75 (+-0.2) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 0.5 (+-0.2) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 1.0-1.1 (+-0.2) volts

– – –1/1

3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

TM4726 (01NOV03)

211-SSU-77

6020 to 6920S tractors 022204

PN=1011

SSU Diagnostic Trouble Codes 4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 78

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

SSU 523826.07 — SSU Controller Cannot Detect any Movement at Wheel Angle Sensor (WAS)

If, despite a steering movement being made, the SSU controller fails to detect a signal from the wheel angle sensor (WAS), or the signal it does receive is too low, diagnostic trouble code 523826.07 is triggered. Alarm level: Information.

LX24888,00005EF –19–29SEP03–1/1

TM4726 (01NOV03)

211-SSU-78

6020 to 6920S tractors 022204

PN=1012

SSU Diagnostic Trouble Codes Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

211 SSU 79

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the channel 1 signal from the wheel angle sensor (WAS)

Access SSU901 - Channel 1 and 2 signals from the wheel angle sensor (WAS) or addresses SSU009 and SSU010: SSU009 Channel 1 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ......................................................................... 3.5 (+-0.4) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 1.0 (+-0.4) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 2.0-2.2 (+-0.4) volts

OK: If channels 1 and 2 of the wheel angle sensor (WAS) provide correct values, GO TO 5. NOT OK: GO TO 3.

SSU010 Channel 2 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ....................................................................... 1.75 (+-0.2) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 0.5 (+-0.2) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 1.0-1.1 (+-0.2) volts

– – –1/1

TM4726 (01NOV03)

211-SSU-79

6020 to 6920S tractors 022204

PN=1013

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 80

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-80

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1014

SSU Diagnostic Trouble Codes

SSU 523826.10 — Signal from Wheel Angle Sensor (WAS) Not Recognized by Steering Identification Device (SID)

If a movement is detected by the wheel angle sensor (WAS) but not by the steering input device (SID),

211 SSU 81

diagnostic trouble code SSU 523826.10 is triggered. Alarm level: CAUTION.

LX26156,00001B0 –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-SSU-81

6020 to 6920S tractors 022204

PN=1015

SSU Diagnostic Trouble Codes 2 Checking the signals

211 SSU 82

• Start the engine. • Access addresses SSU007, SSU008, SSU009, SSU010 or template SSU900 Signals from Wheel Angle Sensor (WAS) and Steering Input Device (SID). • Turn the steering wheel to right full-lock and left full-lock and check whether the values from the wheel angle sensor (WAS) and steering input device (SID) change accordingly. • NONE of the values should change unless the steering wheel is turned. SSU007 - Counts of steering input device SID 1 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000

OK: GO TO 5. NOT OK: If the values from the steering input device (SID) are not correct: GO TO 3, if the values from the wheel angle sensor (WAS) are not correct: GO TO 6.

SSU008 - Counts of steering input device SID 2 (B138), status—Specification Move the steering wheel to the right, the value increases:—Number of counts ................................................................ 000 - 999 Move the steering wheel to the left, the value decreases:—Number of counts ............................................................... 999 - 000 SSU009 Channel 1 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ......................................................................... 3.5 (+-0.4) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 1.0 (+-0.4) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 2.0-2.2 (+-0.4) volts SSU010 Channel 2 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ....................................................................... 1.75 (+-0.2) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 0.5 (+-0.2) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 1.0-1.1 (+-0.2) volts

– – –1/1

TM4726 (01NOV03)

211-SSU-82

6020 to 6920S tractors 022204

PN=1016

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of steering input device SID 1 and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and SSU do an Operational Check 83 for Steering Input Device (B138), see 245-SSU.

LX1025921 –UN–07OCT03

Steering input device (SID) B138—Steering input device (SID)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Steering Input Device (B138), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Steering Input Device (B138) and Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and do an Operational Check for Steering Input Device (B138) and Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

TM4726 (01NOV03)

211-SSU-83

6020 to 6920S tractors 022204

PN=1017

SSU Diagnostic Trouble Codes 6 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 7. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 84

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

7 Checking the circuit of the wheel angle sensor (WAS)

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

SSU 523826.14 — Channel 1 Signal from the Wheel Angle Sensor (WAS) Incorrect in Relation to Channel 2 Signal

The wheel angle sensor (WAS) consists of two separate sensors. The signal voltage at sensor 2 is 1/2 that of the signal voltage at sensor 1. If this difference

is off by 0.2 volts, diagnostic trouble code SSU 523826.14 is triggered. Alarm level: CAUTION.

LX26156,00001BC –19–05AUG03–1/1

TM4726 (01NOV03)

211-SSU-84

6020 to 6920S tractors 022204

PN=1018

SSU Diagnostic Trouble Codes Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

211 SSU 85

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the signals

• Start the engine. • Access addresses SSU009, SSU010 or template SSU901 - Channel 1 and 2 signals from the wheel angle sensor (WAS). • Turn the steering wheel to right full-lock and left full-lock and check whether the values from channel 2 of the wheel angle sensor (WAS) are still 1/2 of those from channel 1.

OK: GO TO 5. NOT OK: GO TO 3.

SSU009 Channel 1 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ......................................................................... 3.5 (+-0.4) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 1.0 (+-0.4) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 2.0-2.2 (+-0.4) volts SSU010 Channel 2 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ....................................................................... 1.75 (+-0.2) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 0.5 (+-0.2) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 1.0-1.1 (+-0.2) volts – – –1/1

TM4726 (01NOV03)

211-SSU-85

6020 to 6920S tractors 022204

PN=1019

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 86

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-86

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1020

SSU Diagnostic Trouble Codes

SSU 524003.00 — Signal from the Wheel Angle Sensor (WAS) on Channel 2 Too High

If the voltage at signal line 986 of channel 2 of the wheel angle sensor (WAS) is over 4.5 volts for longer than 320 ms, diagnostic trouble code SSU 524003.00

is triggered. Alarm level: Information.

211 SSU 87

LX26156,00001BB –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the channel 2 signal from the wheel angle sensor (WAS)

Access address SSU010:

OK: GO TO 5.

SSU010 Channel 2 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ....................................................................... 1.75 (+-0.2) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 0.5 (+-0.2) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 1.0-1.1 (+-0.2) volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-87

6020 to 6920S tractors 022204

PN=1021

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 88

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-88

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1022

SSU Diagnostic Trouble Codes

SSU 524003.01 — Signal from the Wheel Angle Sensor (WAS) on Channel 2 Too Low

If the voltage at signal line 986 of channel 2 of the wheel angle sensor (WAS) is under 0.5 volts for longer than 320 ms, diagnostic trouble code SSU 524003.01

is triggered. This indicates that the circuit is open. Alarm level: Information.

211 SSU 89

LX26156,00001BA –19–05AUG03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 240-10-045, SE35-Automatic steering system (AutoTrac)

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the channel 2 signal from the wheel angle sensor (WAS)

Access address SSU010:

OK: GO TO 5.

SSU010 Channel 2 signal from the wheel angle sensor (WAS)—Specification Start the engine, turn the steering wheel to left full-lock:—Voltage ....................................................................... 1.75 (+-0.2) volts Start the engine, turn the steering wheel to right full-lock:—Voltage ...................................................................... 0.5 (+-0.2) volts Start the engine, steering set for straight ahead:—Voltage .................................................................. 1.0-1.1 (+-0.2) volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-SSU-89

6020 to 6920S tractors 022204

PN=1023

SSU Diagnostic Trouble Codes 3 Initial component test

Perform a visual inspection of the wheel angle sensor (WAS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211 SSU 90

LX1025920 –UN–07OCT03

Wheel angle sensor (WAS) B139—Wheel angle sensor (WAS)

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Wheel Angle Sensor (B139), see 245-SSU.

OK: GO TO 5. NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Wheel Angle Sensor (B139) in 245-SSU. • For back-up, see also additional references for circuit checks: – Reference 245-SSU-100, Test Procedure in the Case of Occasional SSU Circuit Problems (SSU Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and do an Operational Check for Wheel Angle Sensor (B139), see 245-SSU.

211-SSU-90

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1024

Group TCU

TCU Diagnostic Trouble Codes TCU 304019.05 — Fault at Clutch Pedal Sensor

Diagnostic trouble code TCU 304019.05 is saved if the position of the clutch pedal switch does not correspond to the position of the clutch pedal (voltage of clutch

pedal potentiometer transmitted as CAN BUS message from the user interface controller UIC). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BAB –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective clutch pedal potentiometer (B65). – Diagnostic trouble codes UIC 305141.12, UIC 305142.04 and UIC 305143.03 take priority. • Defective clutch pedal switch (S72). • A faulty wire connection: – between transmission enable relay K02/1, the clutch pedal switch and transmission control unit (TCU) (cable 664 or 646). – between the clutch pedal switch and transmission control unit (TCU) (cable 646). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Clutch Actuation Mechanism” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Clutch Actuation Mechanism” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-1

6020 to 6920S tractors 022204

PN=1025

211 TCU 1

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 TCU 2

1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

2 Checking the clutch pedal switch

• Access address TCU 07.

OK: GO TO 3.

Do this check with the reverse drive lever in its position for neutral:

NOT OK: GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU.

TCU 07 –– Status, clutch pedal switch (S72)—Specification Pedal declutched:—Status .......................................................................................... XX1 Pedal clutched:—Status .............................................................................................. XX0

– – –1/1

3 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 2.1 – Check channel 1 of the Hall-type potentiometer: • Access address UIC 18: UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Pedal declutched:—Minimum voltage .................................................................. 0.5 volts Pedal clutched:—Maximum voltage ..................................................................... 4.5 volts

OK: GO TO 4. NOT OK: GO TO: Circuit/Harness test for clutch pedal potentiometer (B65); see Technical Manual, section 245, group UIC.

2.1 – Check channel 2 of the Hall-type potentiometer: • Access address UIC 19: UIC 19 –– Voltage, clutch pedal potentiometer (B65; channel 2)—Specification Pedal declutched:—Minimum voltage ................................................................ 0.25 volts Pedal clutched:—Maximum voltage ................................................................... 2.25 volts

– – –1/1

TM4726 (01NOV03)

211-TCU-2

6020 to 6920S tractors 022204

PN=1026

TCU Diagnostic Trouble Codes 4 Checking the point at which the clutch pedal trips

Access address UIC 18 . Slowly press the clutch down fully. At the moment when the switch can be heard to trip, voltage at the clutch pedal switch should be: UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Point at which the clutch pedal switch trips:—Voltage range ............................................................... between 3.6 and 3.9 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO "Check the circuit of the clutch pedal potentiometer and the clutch pedal switch for loose, poor or slid-back contacts". NOT OK: Check the installation of the clutch pedal potentiometer and switch (see relevant passage in Repair Manual).

– – –1/1

TCU 304020.02 — Faulty Transmission Enable Signal

Diagnostic trouble code TCU 304020.02 is saved if the 12-volt signal from the transmission enable relay does not correspond to the position of the reverse drive

lever (transmitted by the UIC). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BAC –19–01NOV03–1/1

TM4726 (01NOV03)

211-TCU-3

6020 to 6920S tractors 022204

PN=1027

211 TCU 3

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 TCU 4

• Defective transmission enable relay K02/1. – Diagnostic trouble code UIC 305189.02 takes priority. • A faulty wire connection: – at the relay/ground connection between enable relay K02/1 and the user interface controller (UIC) (cable 263). – at the relay, switch and positive lead between transmission enable relay K02/1 and the transmission control unit (TCU) (cable 652). – at the signal lead between transmission enable relay K02/1 and the transmission control unit (TCU) (cables 664 or 646). – at the positive lead for the range clutches C1 - C4 and disk brake BG (cable 664). • A faulty reverse drive lever S80 (UIC diagnostic trouble codes take priority). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: If no other priority diagnostic trouble codes are saved: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

TM4726 (01NOV03)

211-TCU-4

6020 to 6920S tractors 022204

PN=1028

TCU Diagnostic Trouble Codes 2 Checking transmission enable relay K02/1 in Diagnostic Mode

• Engine off.

OK: GO TO 3

NOTE: With the reverse drive lever in its neutral position, the correct display (“X11”) must stay on the screen for longer than 5 seconds. The display must be watched for at least 5 seconds, as some of the faults at relay K02/1 take 5 seconds to appear on the screen. The relay is then de-activated after approx. 5 seconds.

NOT OK: GO TO: Circuit/harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, Section 245, Group TCU.

• Access address UIC 11. UIC 11 –– Status, transmission enable relay K02/1—Specification Reverse drive lever in position for corner park (relay not activated):—Status .............................................................................. X10 Reverse drive lever in position for neutral (relay activated by UIC via ground cable 263):—Status ........................................................................................ X11

– – –1/1

3 Checking transmission enable signal from relay K02/1 and clutch-pedal switch (S72) in Diagnostic Mode

Engine OFF, ignition ON.

OK: GO TO 4.

• Access address TCU 07.

NOT OK: GO TO: Circuit/harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, Section 245, Group TCU.

• Do this check with the reverse drive lever in its position for neutral: TCU 07 –– Status, clutch pedal switch (S72) and transmission enable signal from relay K02/1—Specification Pedal declutched:—Status .......................................................................................... X11 Pedal clutched:—Status .............................................................................................. X10

– – –1/1

TM4726 (01NOV03)

211-TCU-5

6020 to 6920S tractors 022204

PN=1029

211 TCU 5

TCU Diagnostic Trouble Codes 4 Checking the reverse drive lever

NOTE: If there is a problem at transmission enable relay K02/1, all the positions of the reverse drive lever appear in address UIC39 as faults (“ERR”).

OK: Diagnosis completed. NOT OK: GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

211 TCU 6

LX1024145 –UN–29NOV00

1—Power zero (forward) 2—Power zero (reverse) 3—Forward travel 4—Reverse travel 5—Corner park lock 6—Center park lock 7—Neutral 8—Reverse drive lever IMPORTANT: It is NOT possible to check diagnostic address UIC 39 while the "come-home" mode is activated. IMPORTANT: For diagnosis with the basic informator or performance monitor: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved and address UIC 39 shows “PCE” (center park lock position) in both the forward and reverse ranges.

NOTE: A fault in any range is displayed as “Err”. • Ignition ON. • Access address UIC 39. UIC 39 –– Status, reverse drive lever (S80)—Specification Lever in range 1 (Power Zero forward):—Status ....................................................................................................... POF Lever in range 2 (Power Zero reverse):—Status ......................................................................................................... POr Lever in range 3 (forward):—Status ................................................................................ F Lever in range 4 (reverse):—Status ................................................................................. r Lever in range 5 (corner park lock position):—Status ....................................................................................................... PCO Lever in range 6 (center park lock position):—Status ....................................................................................................... PCE Lever in range 7 (neutral position):— Status ......................................................................................................................... nEU

– – –1/1

TM4726 (01NOV03)

211-TCU-6

6020 to 6920S tractors 022204

PN=1030

TCU Diagnostic Trouble Codes

TCU 304024.04 — Transmission Oil Temperature Sender, Short to Ground

Diagnostic trouble code TCU 304024.04 is saved when the transmission control unit registers an unlikely temperature and therefore indicates that there is a

short to ground in the sender circuit. The diagnostic trouble code triggers the alarm level: “Information”.

211 TCU 7

LX12234,0000BAD –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective transmission oil temperature sender (internal short circuit). • A grounded circuit in the lead between the sender for transmission oil temperature and the transmission control unit (cable 642). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-7

6020 to 6920S tractors 022204

PN=1031

TCU Diagnostic Trouble Codes 2 Checking the transmission oil temperature sender

• Access address TCU 19:

OK: • Diagnosis completed.

TCU 19 –– Voltage, transmission oil temperature sender—Specification Oil temperature in volts:—Voltage range .......................................... from 0.5 to 3.0 volts

211 TCU 8

• Type of error indicates a loose contact, GO TO: Circuit/harness test for oil temperature sender; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for oil temperature sender; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304032.03 — Clutch Pedal Switch, Shorted Circuit

Diagnostic trouble code TCU 304032.03 is saved if the circuit of the clutch pedal switch is shorted to the power supply for the forward and reverse solenoids

(battery voltage). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BAE –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-8

6020 to 6920S tractors 022204

PN=1032

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective clutch pedal switch S27 (internal short circuit). • A faulty wire connection (shorted circuit): – at the lead between the clutch pedal switch and transmission control unit (cable 646). – at the positive lead of the CF and CR direction clutches (cable 646). Additional references:

211 TCU 9

• Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Clutch Actuation Mechanism” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Clutch Actuation Mechanism” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-9

6020 to 6920S tractors 022204

PN=1033

TCU Diagnostic Trouble Codes 2 Checking the clutch pedal switch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Access address TCU 07. • Do this check with the reverse drive lever in its position for neutral: 211 TCU 10

TCU 07 –– Status, clutch pedal switch (S72)—Specification Pedal declutched:—Status .......................................................................................... XX1 Pedal clutched:—Status .............................................................................................. XX0

• Type of error indicates a loose contact, GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU. NOT OK: GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU.

– – –1/1

TCU 304033.03 — Transmission Enable Signal, Shorted Circuit

Diagnostic trouble code TCU 304033.03 is saved if the circuit of the transmission enable relay is shorted to the power supply for the range elements (battery

voltage). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BAF –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-10

6020 to 6920S tractors 022204

PN=1034

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective transmission enable relay K02/1 (stuck in switched position). – Diagnostic trouble code UIC 305189.02 takes priority. • A faulty wire connection (shorted circuit): – at the signal lead between transmission enable relay K02/1 and the transmission control unit (TCU) (cables 664 or 646). – at the positive lead for the range clutches C1 - C4 and disk brake BG (cable 664). Additional references:

211 TCU 11

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: If no other priority diagnostic trouble codes are saved: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

TM4726 (01NOV03)

211-TCU-11

6020 to 6920S tractors 022204

PN=1035

TCU Diagnostic Trouble Codes 2 Checking transmission enable signal from relay K02/1 in Diagnostic Mode 211 TCU 12

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Access address TCU 07: TCU 07 –– Status, transmission enable signal from relay K02/1—Specification Put the reverse drive lever in corner park lock position:—Status .................................................................................................. X0X Reverse drive lever in neutral:—Status ...................................................................... X1X

• Type of error indicates a loose contact, GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU. NOT OK: GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU.

– – –1/1

TCU 304040.03 — Transmission Oil Temperature Sender, Short or Open Circuit

Diagnostic trouble code TCU 304040.03 is saved when the transmission control unit registers an unlikely temperature and therefore indicates that there is an

open or a short circuit to the supply voltage (battery voltage) in the sender circuit. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BB0 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-12

6020 to 6920S tractors 022204

PN=1036

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective transmission oil temperature sender (internal short circuit). • A shorted or open circuit in the leads between the sender for transmission oil temperature and the transmission control unit (cable 641 and/or 642).

211 TCU 13

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-13

6020 to 6920S tractors 022204

PN=1037

TCU Diagnostic Trouble Codes 2 Checking the transmission oil temperature sender

• Access address TCU 19:

OK: • Diagnosis completed.

TCU 19 –– Voltage, transmission oil temperature sender—Specification Oil temperature in volts:—Voltage range .......................................... from 0.5 to 3.0 volts

211 TCU 14

• Type of error indicates a loose contact, GO TO: Circuit/harness test for oil temperature sender; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for oil temperature sender; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304048.04 — Transmission Input Speed Sender, Grounded Circuit

Diagnostic trouble code TCU 304048.04 is saved when there is a short to ground in the sender circuit. The

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB1 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-14

6020 to 6920S tractors 022204

PN=1038

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Defective transmission input speed sender B61 (internal short circuit). • A grounded circuit in the lead between the transmission input speed sender and the transmission control unit (cable 675).

211 TCU 15

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Input Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Input Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-15

6020 to 6920S tractors 022204

PN=1039

TCU Diagnostic Trouble Codes 2 Checking the sending unit for transmission input speed

OK: • Diagnosis completed.

Compare the value at transmission input speed sender B61 with the engine speed displayed on the basic informator (the value of crankshaft speed sender B72 as transmitted by the ECU):

• Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

• Start the engine. 211 TCU 16

• Access address TCU 45. • Do this test while the engine is running. • The value displayed at the diagnostic address should be the same as that shown on the basic informator: TCU 45 –– Speed, transmission input speed sender (B61)—Specification Transmission input speed (engine speed) in rpm:—rpm ......................................................... 0 to max. transm. input speed

NOT OK: GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304049.04 — Transmission Output Speed Sender, Grounded Circuit at Channel 1

Diagnostic trouble code TCU 304049.04 is saved when there is a short to ground in channel 1 of the sender’s

circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB2 –19–01OCT03–1/1

TM4726 (01NOV03)

211-TCU-16

6020 to 6920S tractors 022204

PN=1040

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective transmission output speed sender B63 (internal short circuit). • A grounded circuit in the lead between the transmission output speed sender and the transmission control unit (cable 681).

211 TCU 17

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-17

6020 to 6920S tractors 022204

PN=1041

TCU Diagnostic Trouble Codes 2 Checking the sending unit for transmission output speed

211 TCU 18

Diagnostics with Service ADVISOR:

OK: Diagnosis completed.

• Start the engine. • Access template TCU905 - Sending unit for transmission output speed (B63). • Do this check while the tractor is in motion: – The display of channels 1 and 2 should alternate between “0” and “1”: TCU 011 –– Status, transmission output speed sender (B63)—Specification Signal from channel 1 present:—Status ..................................................................... 1XX Signal from channel 2 present:—Status ..................................................................... X1X

– Doubling travel speed results in a doubling of the output value in address TCU 47. TCU 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

Diagnosis with the basic informator or performance monitor: • Start the engine. NOTE: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 47. • Do this check while the tractor is in motion. • Doubling travel speed results in a doubling of the output value in address UIC 47. UIC 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

– – –1/1

TCU 304050.04 — Hydrostatic Speed Sender, Grounded Circuit at Channel 1

Diagnostic trouble code TCU 304050.04 is saved when there is a short to ground in channel 1 of the sender’s

circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB3 –19–01OCT03–1/1

TM4726 (01NOV03)

211-TCU-18

6020 to 6920S tractors 022204

PN=1042

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective hydrostatic speed sender B62 (internal short circuit). • A grounded circuit in the lead between the hydrostatic speed sender and the transmission control unit (cable 689).

211 TCU 19

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Hydrostatic Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “Replacing the Hydrostatic Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-19

6020 to 6920S tractors 022204

PN=1043

TCU Diagnostic Trouble Codes 2 Check the hydrostatic speed sender

CAUTION: During this test, do NOT move the reverse drive lever in the ranges for forward or reverse travel, as this will cause the tractor to move. • Start the engine. • Access addresses TCU010 and TCU 46, or template TCU906 - Hydrostatic speed sender (B62). • Do this check with the engine running and the reverse drive lever in its position for power zero: The displayed hydrostatic speed (negative rotation) should be the same as the set engine speed:

211 TCU 20

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual.

LX1025965 –UN–30OCT03

Ranges of the reverse drive lever 1—Reverse drive lever 2—Power zero 3—Forward travel 4—Reverse travel

• Set engine speed at 1000 rpm: TCU 46 –– Speed and direction of rotation, hydrostatic speed sending unit (B62)—Specification Display showing an engine speed of 1000 rpm:—Speed .......................................................................................... - 1000 rpm • The display of channels 1 and 2 should alternate between “0” and “1”: TCU 010 –– Status, hydrostatic speed sender (B62)—Specification Signal from channel 1 present:—Status ..................................................................... X1X Signal from channel 2 present:—Status ..................................................................... XX1

– – –1/1

TM4726 (01NOV03)

211-TCU-20

6020 to 6920S tractors 022204

PN=1044

TCU Diagnostic Trouble Codes

TCU 304051.04 — Transmission Output Speed Sender, Grounded Circuit at Channel 2

Diagnostic trouble code TCU 304051.04 is saved when there is a short to ground in channel 2 of the sender’s

circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB4 –19–01OCT03–1/1

Diagnostics The following are possible causes: • Defective transmission output speed sender B63 (internal short circuit). • A grounded circuit in the lead between the transmission output speed sender and the transmission control unit (cable 683). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-21

6020 to 6920S tractors 022204

PN=1045

211 TCU 21

TCU Diagnostic Trouble Codes 2 Checking the sending unit for transmission output speed

211 TCU 22

Diagnostics with Service ADVISOR:

OK: Diagnosis completed.

• Start the engine. • Access template TCU905 - Sending unit for transmission output speed (B63). • Do this check while the tractor is in motion: – The display of channels 1 and 2 should alternate between “0” and “1”: TCU 011 –– Status, transmission output speed sender (B63)—Specification Signal from channel 1 present:—Status ..................................................................... 1XX Signal from channel 2 present:—Status ..................................................................... X1X

– Doubling travel speed results in a doubling of the output value in address TCU 47. TCU 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

Diagnosis with the basic informator or performance monitor: • Start the engine. NOTE: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 47. • Do this check while the tractor is in motion. • Doubling travel speed results in a doubling of the output value in address UIC 47. UIC 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

– – –1/1

TCU 304052.04 — Hydrostatic Speed Sender, Grounded Circuit at Channel 2

Diagnostic trouble code TCU 304052.04 is saved when there is a short to ground in channel 2 of the sender’s

circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB5 –19–01OCT03–1/1

TM4726 (01NOV03)

211-TCU-22

6020 to 6920S tractors 022204

PN=1046

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective hydrostatic speed sender B62 (internal short circuit). • A grounded circuit in the lead between the hydrostatic speed sender and the transmission control unit (cable 695).

211 TCU 23

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Hydrostatic Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “Replacing the Hydrostatic Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-23

6020 to 6920S tractors 022204

PN=1047

TCU Diagnostic Trouble Codes 2 Check the hydrostatic speed sender

CAUTION: During this test, do NOT move the reverse drive lever in the ranges for forward or reverse travel, as this will cause the tractor to move. • Start the engine. • Access addresses TCU010 and TCU 46, or template TCU906 - Hydrostatic speed sender (B62). • Do this check with the engine running and the reverse drive lever in its position for power zero: The displayed hydrostatic speed (negative rotation) should be the same as the set engine speed:

211 TCU 24

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual.

LX1025965 –UN–30OCT03

Ranges of the reverse drive lever 1—Reverse drive lever 2—Power zero 3—Forward travel 4—Reverse travel

• Set engine speed at 1000 rpm: TCU 46 –– Speed and direction of rotation, hydrostatic speed sending unit (B62)—Specification Display showing an engine speed of 1000 rpm:—Speed .......................................................................................... - 1000 rpm • The display of channels 1 and 2 should alternate between “0” and “1”: TCU 010 –– Status, hydrostatic speed sender (B62)—Specification Signal from channel 1 present:—Status ..................................................................... X1X Signal from channel 2 present:—Status ..................................................................... XX1

– – –1/1

TM4726 (01NOV03)

211-TCU-24

6020 to 6920S tractors 022204

PN=1048

TCU Diagnostic Trouble Codes

TCU 304056.03 — Transmission Input Speed Sender, Shorted or Open Circuit

Diagnostic trouble code TCU 304056.03 is saved when there is an open or a short circuit to the supply voltage

(battery voltage) in the sender’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB6 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective transmission input speed sender B61 (internal short circuit). • Contact problems at the connections. • Defective line connection between the transmission input speed sender and the TCU. – Open or shorted lead at cable 675 or 671. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Input Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Input Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-25

6020 to 6920S tractors 022204

PN=1049

211 TCU 25

TCU Diagnostic Trouble Codes 2 Checking the sending unit for transmission input speed

OK: • Diagnosis completed.

Compare the value at transmission input speed sender B61 with the engine speed displayed on the basic informator (the value of crankshaft speed sender B72 as transmitted by the ECU):

• Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

• Start the engine. 211 TCU 26

• Access address TCU 45. • Do this test while the engine is running. • The value displayed at the diagnostic address should be the same as that shown on the basic informator: TCU 45 –– Speed, transmission input speed sender (B61)—Specification Transmission input speed (engine speed) in rpm:—rpm ......................................................... 0 to max. transm. input speed

NOT OK: GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304057.03 — Transmission Output Speed Sender, Shorted or Open Circuit at Channel 1

Diagnostic trouble code TCU 304057.03 is saved when there is an open or a short circuit to the supply voltage (battery voltage) at channel 1 of the sender’s circuit.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB7 –19–01OCT03–1/1

TM4726 (01NOV03)

211-TCU-26

6020 to 6920S tractors 022204

PN=1050

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective transmission output speed sender B63 (internal short circuit). • Contact problems at the connections. • A shorted or open circuit in the lead between the transmission output speed sender and the transmission control unit (cable 681). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-27

6020 to 6920S tractors 022204

PN=1051

211 TCU 27

TCU Diagnostic Trouble Codes 2 Checking the sending unit for transmission output speed

211 TCU 28

Diagnostics with Service ADVISOR:

OK: Diagnosis completed.

• Start the engine. • Access template TCU905 - Sending unit for transmission output speed (B63). • Do this check while the tractor is in motion: – The display of channels 1 and 2 should alternate between “0” and “1”: TCU 011 –– Status, transmission output speed sender (B63)—Specification Signal from channel 1 present:—Status ..................................................................... 1XX Signal from channel 2 present:—Status ..................................................................... X1X

– Doubling travel speed results in a doubling of the output value in address TCU 47. TCU 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

Diagnosis with the basic informator or performance monitor: • Start the engine. NOTE: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 47. • Do this check while the tractor is in motion. • Doubling travel speed results in a doubling of the output value in address UIC 47. UIC 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

– – –1/1

TCU 304058.03 — Hydrostatic Speed Sender, Shorted or Open Circuit at Channel 1

Diagnostic trouble code TCU 304058.03 is saved when there is an open or a short circuit to the supply voltage (battery voltage) at channel 1 of the sender’s circuit.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB8 –19–01OCT03–1/1

TM4726 (01NOV03)

211-TCU-28

6020 to 6920S tractors 022204

PN=1052

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective hydrostatic speed sender B62 (internal short circuit). • Contact problems at the connections. • A shorted or open circuit in the lead between the hydrostatic speed sender and the transmission control unit (cable 689).

211 TCU 29

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Hydrostatic Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “Replacing the Hydrostatic Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-29

6020 to 6920S tractors 022204

PN=1053

TCU Diagnostic Trouble Codes 2 Check the hydrostatic speed sender

CAUTION: During this test, do NOT move the reverse drive lever in the ranges for forward or reverse travel, as this will cause the tractor to move. • Start the engine. • Access addresses TCU010 and TCU 46, or template TCU906 - Hydrostatic speed sender (B62). • Do this check with the engine running and the reverse drive lever in its position for power zero: The displayed hydrostatic speed (negative rotation) should be the same as the set engine speed:

211 TCU 30

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual.

LX1025965 –UN–30OCT03

Ranges of the reverse drive lever 1—Reverse drive lever 2—Power zero 3—Forward travel 4—Reverse travel

• Set engine speed at 1000 rpm: TCU 46 –– Speed and direction of rotation, hydrostatic speed sending unit (B62)—Specification Display showing an engine speed of 1000 rpm:—Speed .......................................................................................... - 1000 rpm • The display of channels 1 and 2 should alternate between “0” and “1”: TCU 010 –– Status, hydrostatic speed sender (B62)—Specification Signal from channel 1 present:—Status ..................................................................... X1X Signal from channel 2 present:—Status ..................................................................... XX1

– – –1/1

TM4726 (01NOV03)

211-TCU-30

6020 to 6920S tractors 022204

PN=1054

TCU Diagnostic Trouble Codes

TCU 304059.03 — Transmission Output Speed Sender, Shorted or Open Circuit at Channel 2

Diagnostic trouble code TCU 304059.03 is saved when there is an open or a short circuit to the supply voltage (battery voltage) at channel 2 of the sender’s circuit.

211 TCU 31

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BB9 –19–01OCT03–1/1

Diagnostics The following are possible causes: • Supply voltage of transmission output speed sender is faulty (fuse F04/15): – Defective positive lead to sender (cable 572). – Defective ground lead to sender (cable 680). • Defective transmission output speed sender B63 (internal short circuit). • Contact problems at the connections. • A shorted or open circuit in the lead between the transmission output speed sender and the transmission control unit (cable 683). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-31

6020 to 6920S tractors 022204

PN=1055

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 TCU 32

– – –1/1

2 Checking the sending unit for transmission output speed

Diagnostics with Service ADVISOR: • Start the engine. • Access template TCU905 - Sending unit for transmission output speed (B63). • Do this check while the tractor is in motion: – The display of channels 1 and 2 should alternate between “0” and “1”: TCU 011 –– Status, transmission output speed sender (B63)—Specification Signal from channel 1 present:—Status ..................................................................... 1XX Signal from channel 2 present:—Status ..................................................................... X1X

– Doubling travel speed results in a doubling of the output value in address TCU 47. TCU 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

OK: Diagnosis completed. Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

Diagnosis with the basic informator or performance monitor: • Start the engine. NOTE: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 47. • Do this check while the tractor is in motion. • Doubling travel speed results in a doubling of the output value in address UIC 47. UIC 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

– – –1/1

TM4726 (01NOV03)

211-TCU-32

6020 to 6920S tractors 022204

PN=1056

TCU Diagnostic Trouble Codes

TCU 304060.03 — Hydrostatic Speed Sender, Shorted or Open Circuit at Channel 2

Diagnostic trouble code TCU 304060.03 is saved when there is an open or a short circuit to the supply voltage (battery voltage) at channel 2 of the sender’s circuit.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 TCU 33

LX12234,0000BBA –19–01OCT03–1/1

Diagnostics The following are possible causes: • Supply voltage of the hydrostatic speed sender is faulty (fuse F04/15): – Defective positive lead to sender (cable 572). – Defective ground lead to sender (cable 680). • Defective hydrostatic speed sender B62 (internal short circuit). • Contact problems at the connections. • A shorted or open circuit in the lead between the transmission output speed sender and the transmission control unit (cable 695). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Hydrostatic Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “Replacing the Hydrostatic Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-33

6020 to 6920S tractors 022204

PN=1057

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

211 TCU 34

– – –1/1

TM4726 (01NOV03)

211-TCU-34

6020 to 6920S tractors 022204

PN=1058

TCU Diagnostic Trouble Codes 2 Check the hydrostatic speed sender

CAUTION: During this test, do NOT move the reverse drive lever in the ranges for forward or reverse travel, as this will cause the tractor to move. • Start the engine. • Access addresses TCU010 and TCU 46, or template TCU906 - Hydrostatic speed sender (B62). • Do this check with the engine running and the reverse drive lever in its position for power zero: The displayed hydrostatic speed (negative rotation) should be the same as the set engine speed:

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual.

LX1025965 –UN–30OCT03

Ranges of the reverse drive lever 1—Reverse drive lever 2—Power zero 3—Forward travel 4—Reverse travel

• Set engine speed at 1000 rpm: TCU 46 –– Speed and direction of rotation, hydrostatic speed sending unit (B62)—Specification Display showing an engine speed of 1000 rpm:—Speed .......................................................................................... - 1000 rpm • The display of channels 1 and 2 should alternate between “0” and “1”: TCU 010 –– Status, hydrostatic speed sender (B62)—Specification Signal from channel 1 present:—Status ..................................................................... X1X Signal from channel 2 present:—Status ..................................................................... XX1

– – –1/1

TM4726 (01NOV03)

211-TCU-35

6020 to 6920S tractors 022204

PN=1059

211 TCU 35

TCU Diagnostic Trouble Codes

TCU 304064.02 — Implausible Drop in Speed at Transmission Input Speed Signal

211 TCU 36

Diagnostic trouble code TCU 304064.02 is saved if the TCU detects that the transmission input speed has dropped suddenly and inexplicably to 0 rpm. The

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BBB –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Electrically defective transmission input speed sender (B61): – Priority diagnostic trouble codes TCU 304048.04 and TCU 304056.03 must be processed first. • Mechanically defective transmission input speed sender (B61). • Incorrect installation of transmission input speed sender (sender’s position). • Problem in transmitting the speed signal due to dirt on the tip of the sender or mechanical damage to the sender’s gearwheel. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Input Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Input Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-36

6020 to 6920S tractors 022204

PN=1060

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active and 211 no priority diagnostic TCU codes exist: GO TO 2. 37

1.2 Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the sending unit for transmission input speed

OK: • Diagnosis completed.

Compare the value at transmission input speed sender B61 with the engine speed displayed on the basic informator (the value of crankshaft speed sender B72 as transmitted by the ECU):

• Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

• Start the engine. • Access address TCU 45. • Do this test while the engine is running. • The value displayed at the diagnostic address should be the same as that shown on the basic informator: TCU 45 –– Speed, transmission input speed sender (B61)—Specification Transmission input speed (engine speed) in rpm:—rpm ......................................................... 0 to max. transm. input speed

NOT OK: GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304069.02 — Implausible Drop in Speed at the PLC’s Transmission Output Speed Signal

Diagnostic trouble code TCU 304069.02 is saved if the TCU detects that the transmission output speed of the PLC has dropped suddenly and inexplicably to 0 rpm.

The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BBC –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-37

6020 to 6920S tractors 022204

PN=1061

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 38

• Electrically defective transmission output speed sender (B84): – Diagnostic trouble codes TCU 304070.10, PLC 328010.31 or PLC 328012.31 take priority. • The PLC’s transmission output speed sender (B84) is mechanically defective. • Defective line connection (cable 696) between the PLC and TCU. • The PLC’s transmission output speed sender is incorrectly installed (sender’s position). • Problem in transmitting the speed signal due to dirt on the tip of the sender or mechanical damage to the sender’s gearwheel. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Sending Unit for Transmission Output Speed (B84) on Tractors with AutoPowr/IVT Transmission” on 6420 and 6620 tractors (Repair Manual, Section 40, Group 30). • “Replacing the PLC’s Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the transmission output speed sender (B84)

See: Reference 245-PLC-102 , Circuit Test on Sender for Transmission Output Speed (B84) in Section 245, Group PLC of the Technical Manual.

OK: GO TO 3. NOT OK: Replace the sender and carry out an operational check. – – –1/1

TM4726 (01NOV03)

211-TCU-38

6020 to 6920S tractors 022204

PN=1062

TCU Diagnostic Trouble Codes 3 Checking the line connection between the PLC and TCU

OK: • Check the connections for loose, widened, slid-back or corroded contacts.

Check cable 696 (amplified speed signal from PLC): • for an open circuit. • for a grounded circuit. • for a shorted circuit.

• Check that the sender is installed properly (sender’s position).

Lead 696 (amplified speed signal from PLC) W08 (wiring harness - cab) From

To

X382-pin 29 (PLC)

X332-pin 65 (TCU)

• Check the sender’s gearwheel for signs of mechanical damage. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TCU 304070.10 — Transmission Output Speed Sender of PLC is Defective

Diagnostic trouble code TCU 304070.10 is saved if the PLC reports via the CAN BUS that a transmission

output speed sender is defective. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BBD –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-39

6020 to 6920S tractors 022204

PN=1063

211 TCU 39

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 40

• Electrically defective transmission output speed sender (B84): – Diagnostic trouble codes PLC 328010.31 and PLC 328012.31 take priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Sending Unit for Transmission Output Speed (B84) on Tractors with AutoPowr/IVT Transmission” on 6420 and 6620 tractors (Repair Manual, Section 40, Group 30). • “Replacing the PLC’s Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no PLC diagnostic trouble codes exist: GO TO 2.

PLC diagnostic trouble codes take priority.

– – –1/1

2 Checking the transmission output speed (B84)

See: Reference 245-PLC-102 , Circuit Test on Sender for Transmission Output Speed (B84) in Section 245, Group PLC of the Technical Manual.

OK: • Check the connections for loose, widened, slid-back or corroded contacts. • Check that the sender is installed properly (sender’s position). NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-TCU-40

6020 to 6920S tractors 022204

PN=1064

TCU Diagnostic Trouble Codes

TCU 304072.11 — Transmission Input Speed and Engine Speed Do Not Match

Diagnostic trouble code TCU 304072.11 is stored if the transmission input speed registered directly by the TCU does not match the engine speed that is available

at the engine control unit (ECU) via CAN BUS. This diagnostic trouble code sets off a “CAUTION” alarm.

211 TCU 41

LX12234,0000BBE –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Defective crankshaft speed sender (B72). – ECU diagnostic trouble codes ECU 000637.02, ECU 000637.08 and ECU 000637.10 take priority. • Transmission input speed sender (B61) is mechanically or electrically defective. – Diagnostic trouble codes TCU 304048.04 and TCU 304056.03 and TCU 304064.02 take priority. • Incorrect installation of transmission input speed sender (sender’s position). • Problem in transmitting the speed signal due to dirt on the tip of the sender or mechanical damage to the sender’s gearwheel. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Input Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Input Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-41

6020 to 6920S tractors 022204

PN=1065

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 TCU 42

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

1.2 Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the sending unit for transmission input speed

OK: • Diagnosis completed.

Compare the value at transmission input speed sender B61 with the engine speed displayed on the basic informator (the value of crankshaft speed sender B72 as transmitted by the ECU):

• Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

• Start the engine. • Access address TCU 45. • Do this test while the engine is running. • The value displayed at the diagnostic address should be the same as that shown on the basic informator: TCU 45 –– Speed, transmission input speed sender (B61)—Specification Transmission input speed (engine speed) in rpm:—rpm ......................................................... 0 to max. transm. input speed

NOT OK: GO TO: Circuit/harness test for transmission input speed sender (B61); see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304073.08 — Transmission Output Speed Sender, Speed in Channel 1 Lower than in Channel 2

Diagnostic trouble code TCU 304073.08 is saved if a difference in frequency is detected between the two output signals of the transmission output speed

sender. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BBF –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-42

6020 to 6920S tractors 022204

PN=1066

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Mechanically defective transmission output speed sender (B63). • A defect at the signal leads of channel 1 (cable 681) or channel 2 (cable 683) . – Diagnostic trouble codes TCU 304049.04, TCU 304051.04, TCU 304057.03 and TCU 304059.03 take priority. • Incorrect installation of transmission output speed sender (sender’s position). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the circuit of transmission output speed sender (B63)

Check the lines for channel 1 and channel 2 from the sender to the TCU. See Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

OK: Replace the transmission output speed sender (B63) and carry out an operational test. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-TCU-43

6020 to 6920S tractors 022204

PN=1067

211 TCU 43

TCU Diagnostic Trouble Codes

TCU 304074.08 — Hydrostatic Speed Sender, Speed in Channel 1 Lower than in Channel 2

211 TCU 44

Diagnostic trouble code TCU 304074.08 is saved if a difference in frequency is detected between the two output signals of the hydrostatic speed sender. The

diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BC0 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Mechanically defective hydrostatic speed sender (B62). • A defect at the signal leads of channel 1 (cable 689) or channel 2 (cable 695) . – Diagnostic trouble codes TCU 304050.04, TCU 304052.04, TCU 304058.03 and TCU 304060.03 take priority. • Incorrect installation of hydrostatic speed sender (sender’s position). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Hydrostatic Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “Replacing the Hydrostatic Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

TM4726 (01NOV03)

211-TCU-44

6020 to 6920S tractors 022204

PN=1068

TCU Diagnostic Trouble Codes 2 Checking the circuit of hydrostatic speed sender (B62)

Check the lines for channel 1 and channel 2 from the sender to the TCU. See Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual.

OK: Replace the hydrostatic speed sender and carry out an operational test. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TCU 304075.08 — Transmission Output Speed Sender, Speed in Channel 2 Lower than in Channel 1

Diagnostic trouble code TCU 304075.08 is saved if a difference in frequency is detected between the two output signals of the transmission output speed

sender. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BC1 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Mechanically defective transmission output speed sender (B63). • A defect at the signal leads of channel 1 (cable 681) or channel 2 (cable 683) . – Diagnostic trouble codes TCU 304049.04, TCU 304051.04, TCU 304057.03 and TCU 304059.03 take priority. • Incorrect installation of transmission output speed sender (sender’s position). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-45

6020 to 6920S tractors 022204

PN=1069

211 TCU 45

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 211 TCU 46

1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the circuit of transmission output speed sender (B63)

Check the lines for channel 1 and channel 2 from the sender to the TCU. See Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

OK: Replace the transmission output speed sender (B63) and carry out an operational test. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TCU 304076.08 — Hydrostatic Speed Sender, Speed in Channel 2 Lower than in Channel 1

Diagnostic trouble code TCU 304076.08 is saved if a difference in frequency is detected between the two output signals of the hydrostatic speed sender. The

diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BC2 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-46

6020 to 6920S tractors 022204

PN=1070

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Mechanically defective hydrostatic speed sender (B62). • A defect at the signal leads of channel 1 (cable 689) or channel 2 (cable 695) . – Diagnostic trouble codes TCU 304050.04, TCU 304052.04, TCU 304058.03 and TCU 304060.03 take priority. • Incorrect installation of hydrostatic speed sender (sender’s position). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Hydrostatic Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “Replacing the Hydrostatic Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the circuit of hydrostatic speed sender (B62)

Check the lines for channel 1 and channel 2 from the sender to the TCU. See Circuit/harness test for hydrostatic speed sender (B62); see Section 245, Group TCU in the Technical manual.

OK: Replace the hydrostatic speed sender and carry out an operational test. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-TCU-47

6020 to 6920S tractors 022204

PN=1071

211 TCU 47

TCU Diagnostic Trouble Codes

TCU 304077.07 — Transmission Input Speed, Hydrostatic Speed and Transmission Output Speed do not Match

211 TCU 48

Diagnostic trouble code TCU 304077.07 is stored if with power flowing through the transmission the registered ratio between the transmission input speed and hydrostatic speed does not match the actual

transmission output speed. This implies a problem with the transmission. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BC3 –19–01NOV03–1/1

TM4726 (01NOV03)

211-TCU-48

6020 to 6920S tractors 022204

PN=1072

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Incorrect input value in address TCU 44: – Diagnostic trouble code TCU 304140.12 takes priority. • Mechanical defect at one of the speed senders (diagnostic trouble codes that indicate a defective sender should take priority): – Transmission input speed sender (B61): TCU 304064.02 and TCU 304072.11. – Transmission output speed sender (B63): TCU 304073.08,TCU 304075.08, TCU 304146.11 and/or TCU 304151.11. – Hydrostatic speed sending unit (B62): TCU 304074.08 and/or TCU 304076.08. • Hydraulic problem, caused by: – Contaminated filter (diagnostic trouble code TCU 304176.00 takes priority). – Incorrect transmission oil pressure (diagnostic trouble code TCU 304177.01 takes priority). – Faulty filter bypass circuit (cold-weather starting) (diagnostic trouble codes TCU 304178.07 or TCU 304179.07 takes priority). – Problem at additional consumers (rear PTO, differential lock and/or front-wheel drive clutch). • Incorrect amperage applied to direction clutches: – TCU diagnostic trouble codes that indicate a defective proportional solenoid valve should take priority. • Slippage at transmission, caused by: – Overloading of the transmission. – An electrical problem at a solenoid valve or proportional solenoid valve (TCU diagnostic trouble codes that indicate a defective solenoid valve should take priority): – Hydraulic problem. – A mechanical problem at the solenoid valves or clutches (clutch is slipping). IMPORTANT: If while the tractor is in motion the transmission control unit (TCU) detects a condition that could result in damage to the hydrostatic unit or transmission, it interrupts the internal power supply to the transmission (VPS1), thus preventing operation of hydrostatic unit and clutches. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-49

6020 to 6920S tractors 022204

PN=1073

211 TCU 49

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 TCU 50

1.2 Diagnostic trouble codes that have priority must be processed first.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic trouble codes exist, GO TO 2.

– – –1/1

2 Checking the input value at address TCU 44

• Access address TCU 44:

OK: GO TO 3.

TCU 44 –– Input, tractor type—Specification Input for 6420 tractors with Stage I engine to 97/68/EC (ECU Level 4):— Status .................................................................................................................... Input for 6320 and 6420 tractors with Stage II engine to 97/68/EC (ECU Level 11):—Status ........................................................................................................... Input for 6620 tractors:—Status ............................................................................ Input for 6820 and 6920 tractors:— Status ....................................................................................................................

NOT OK: Modify setting, confirm and carry out an operational test. 051001

051002 051004 051003

– – –1/1

TM4726 (01NOV03)

211-TCU-50

6020 to 6920S tractors 022204

PN=1074

TCU Diagnostic Trouble Codes 3 Checking the hydrostatic speed sending unit (B62)

OK: GO TO 4. CAUTION: During this test, do NOT move the reverse drive lever in the ranges for forward or reverse travel, as this will cause the tractor to move. • Start the engine. • Access addresses TCU010 and TCU 46, or template TCU906 - Hydrostatic speed sender (B62). • Do this check with the engine running and the reverse drive lever in its position for power zero: The displayed hydrostatic speed (negative rotation) should be the same as the set engine speed:

NOT OK: Check that the sender is installed properly (sender’s position). IF OK: If the sender is installed properly and no other diagnostic trouble code relating to the senders have been saved: Replace the hydrostatic speed sender and carry out an operational check.

LX1025965 –UN–30OCT03

Ranges of the reverse drive lever 1—Reverse drive lever 2—Power zero 3—Forward travel 4—Reverse travel

• Set engine speed at 1000 rpm: TCU 46 –– Speed and direction of rotation, hydrostatic speed sending unit (B62)—Specification Display showing an engine speed of 1000 rpm:—Speed .......................................................................................... - 1000 rpm • The display of channels 1 and 2 should alternate between “0” and “1”: TCU 010 –– Status, hydrostatic speed sender (B62)—Specification Signal from channel 1 present:—Status ..................................................................... X1X Signal from channel 2 present:—Status ..................................................................... XX1

– – –1/1

TM4726 (01NOV03)

211-TCU-51

6020 to 6920S tractors 022204

PN=1075

211 TCU 51

TCU Diagnostic Trouble Codes 4 Checking the transmission output speed (B63).

211 TCU 52

Diagnostics with Service ADVISOR: • Start the engine. • Access template TCU905 - Sending unit for transmission output speed (B63). • Do this check while the tractor is in motion: – The display of channels 1 and 2 should alternate between “0” and “1”: TCU 011 –– Status, transmission output speed sender (B63)—Specification Signal from channel 1 present:—Status ..................................................................... 1XX Signal from channel 2 present:—Status ..................................................................... X1X

OK: If test is OK, or if the tractor cannot move: GO TO 5. NOT OK: GO TO: Circuit/harness test for transmission output speed sender (B63); see Section 245, Group TCU in the Technical manual.

– Doubling travel speed results in a doubling of the output value in address TCU 47. TCU 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

Diagnosis with the basic informator or performance monitor: • Start the engine. NOTE: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 47. • Do this check while the tractor is in motion. • Doubling travel speed results in a doubling of the output value in address UIC 47. UIC 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

– – –1/1

TM4726 (01NOV03)

211-TCU-52

6020 to 6920S tractors 022204

PN=1076

TCU Diagnostic Trouble Codes 5 Preliminary test on hydraulic system

5.1 - Check transmission pressure:

OK: GO TO 5.2

• Start the engine.

NOT OK: Refer to diagnostics for erroneous system pressure (diagnostic trouble code TCU 304177.01, Section 211, Group TCU).

• Access address TCU 05 or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. • Do this test while the engine is running (1800 rpm). TCU 05 –– Status, transmission oil pressure switch (S74)—Specification When pressurized, the switch is CLOSED:—Status ....................................................................................................... X0X

5.2 - Check the oil filter:

OK: GO TO 5.3

• Operate engine at 1800 rpm for 10 - 15 seconds with oil temperature above 40°C (104°F).

NOT OK: Replace the filter and carry out an operational check.

• Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, switch for transmission oil filter (S73)—Specification Switch closed (filter unrestricted):— Status .......................................................................................................................... XX1

5.3 - Check that filter by-pass valve (cold-weather starting) is operating properly:

OK: GO TO 6.

• Engine speed: 1800 rpm.

NOT OK: Refer to diagnostics for erroneous signal from filter by-pass valve (cold-weather starting) (diagnostic trouble codes TCU 304178.07 or 304179.07, Section 211, Group TCU).

• Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, switch at filter by-pass valve (cold-weather starting) (B87)— Specification Engine running (switch is OPEN):— Status with oil temperature below +5°C (41°F)........................................................................................................................... 0XX Engine running (switch is CLOSED when pressurized):—Status with oil temperature over +10°C (+/- 5°C), 50°F (+/- 9°F) ....................................................................................................................... 1XX

– – –1/1

6 Initial tests for diagnostic trouble code TCU304077.07

• 6.1 Calibrating the transmission: – Do a calibration (see Reference 245-TCU-001, Calibration and Input Addresses). Calibration with Service ADVISOR:Perform “Calibrate AutoPowr/IVT transmission - TCU020” via “Interactive Tests/Calibration” in the “Readings” menu. – If calibration cannot be carried out, make a note of the error report. • 6.2 - Test drive the tractor (to isolate the problem): – Once the tests have been completed, the checklist in DTAC solution 58908 must be sent to the relevant After-Sales Service station together with the service report and test result table. See Checklist for Diagnostic Trouble Code TCU304077.07 in Reference 253-15-001, AutoPowr/IVT Transmission — Test Result Table.

OK: GO TO 7. NOT OK: Calibration and/or test-drive not possible: GO TO 7.

– – –1/1

TM4726 (01NOV03)

211-TCU-53

6020 to 6920S tractors 022204

PN=1077

211 TCU 53

TCU Diagnostic Trouble Codes 7 Pressure test for transmission and other consumers

IMPORTANT: Always do ALL the pressure tests in the test result table, otherwise you may identify only a secondary problem and not the initial one. Before checking system pressure, lube oil pressure, reduced system pressure (pressure for other consumers), the transmission clutches and other consumers, see Reference 253-15-001, AutoPowr/IVT Transmission — Test Result Table. Once the tests have been completed, the entire test result table in DTAC solution 58908 must be sent to the relevant After-Sales Service station.

211 TCU 54

OK: Send the test result table and checklist to the relevant After-Sales Service station (see DTAC solution 58908). NOT OK: Send the test result table and checklist to the relevant After-Sales Service station (see DTAC solution 58908).

For test ports, see: • Reference 253-15-00, AutoPowr/IVT Transmission — Test Ports (6420 and 6620). • Reference 253-15-006, AutoPowr/IVT Transmission — Test Ports (6820 and 6920). For test procedure, see: • Reference 253-15-010, AutoPowr/IVT Transmission • Reference 253-15-011, AutoPowr/IVT Transmission Pressure (Pressure for Other Consumers). • Reference 253-15-013, AutoPowr/IVT Transmission • Reference 253-15-014, AutoPowr/IVT Transmission Clutch. • Reference 253-15-015, AutoPowr/IVT Transmission Clutch. • Reference 253-15-016, AutoPowr/IVT Transmission Clutch. • Reference 253-15-017, AutoPowr/IVT Transmission Clutch. • Reference 253-15-018, AutoPowr/IVT Transmission Disk Brake. • Reference 253-15-019, AutoPowr/IVT Transmission Forward Clutch (CF) • Reference 253-15-020, AutoPowr/IVT Transmission Reverse Clutch (CR)

— Checking System Pressure. — Checking Reduced System — Checking Lube Oil Pressure. — Checking Pressure at the C1 — Checking Pressure at the C2 — Checking Pressure at the C3 — Checking Pressure at the C4 — Checking Pressure at the BG — Checking Pressure at the — Checking Pressure at the

– – –1/1

TCU 304079.07 — Amperage at Proportional Solenoids of Hydrostatic Unit does not Match the Registered Speed

Diagnostic trouble code TCU 304079.07 is saved if amperage at the proportional solenoids of the hydrostatic unit does not match the registered ratio between the transmission input speed and the speed

of the hydrostatic unit. This implies a problem with the hydrostatic unit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BC4 –19–01NOV03–1/1

TM4726 (01NOV03)

211-TCU-54

6020 to 6920S tractors 022204

PN=1078

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • Incorrect input value in address TCU 44: – Diagnostic trouble code TCU 304140.12 takes priority. • Overloading of the hydrostatic unit: – Ask the operator (if a distinct whistling noise can be heard from the hydrostatic unit before it cuts out suddenly, this indicates overloading). • Mechanical defect at one of the speed senders (diagnostic trouble codes that indicate a defective sender should take priority): – Transmission input speed sender (B61): TCU 304064.02 and TCU 304072.11. – Hydrostatic speed sending unit (B62): TCU 304074.08 and/or TCU 304076.08. • Hydraulic problem, caused by: – Contaminated filter (diagnostic trouble code TCU 304176.00 takes priority). – Incorrect transmission oil pressure (diagnostic trouble code TCU 304177.01 takes priority). – Faulty filter bypass circuit (cold-weather starting) (diagnostic trouble codes TCU 304178.07 or TCU 304179.07 takes priority). – Problem at additional consumers (rear PTO, differential lock and/or front-wheel drive clutch). • Malfunctioning transmission as a result of wrongly actuated range clutch, leading to excessive powering of the hydrostatic unit, caused by: – Contaminated oil. – Electrically defective solenoid valve (diagnostic trouble codes that indicate a defective solenoid valve should take priority). – Mechanically defective solenoid. • Defective hydrostatic unit, caused by: – An electrical problem at a proportional solenoid valve (TCU diagnostic trouble codes that indicate a defective proportional solenoid valve should take priority): – A hydraulic problem at the hydrostatic unit (defective high-pressure range - pressure-limiting valve). – A mechanical problem (defective hydrostatic drive, hydrostatic controller (control valve/cylinder), variable pump or constant-speed motor). IMPORTANT: If while the tractor is in motion the transmission control unit (TCU) detects a condition that could result in damage to the hydrostatic unit or transmission, it interrupts the internal power supply to the transmission (VPS1), thus preventing operation of hydrostatic unit and clutches. Additional references: • • • •

Electrical information: Reference 210-15-001, General References - Summary. Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). Reference 245-UIC-200, Theory of Operation (User Interface Controller). Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-55

6020 to 6920S tractors 022204

PN=1079

211 TCU 55

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 TCU 56

1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first. 1.3 The operator’s statement rules out overloading of the hydrostatic unit. – – –1/1

2 Checking the input value at address TCU 44

• Access address TCU 44:

OK: GO TO 3.

TCU 44 –– Input, tractor type—Specification Input for 6420 tractors with Stage I engine to 97/68/EC (ECU Level 4):— Status .................................................................................................................... Input for 6320 and 6420 tractors with Stage II engine to 97/68/EC (ECU Level 11):—Status ........................................................................................................... Input for 6620 tractors:—Status ............................................................................ Input for 6820 and 6920 tractors:— Status ....................................................................................................................

NOT OK: Modify setting, confirm and carry out an operational test. 051001

051002 051004 051003

– – –1/1

TM4726 (01NOV03)

211-TCU-56

6020 to 6920S tractors 022204

PN=1080

TCU Diagnostic Trouble Codes 3 Preliminary test on hydraulic system

3.1 - Check transmission pressure:

OK: GO TO 3.2

• Start the engine.

NOT OK: Refer to diagnostics for erroneous system pressure (diagnostic trouble code TCU 304177.01, Section 211, Group TCU).

• Access address TCU 05 or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. • Do this test while the engine is running (1800 rpm). TCU 05 –– Status, transmission oil pressure switch (S74)—Specification When pressurized, the switch is CLOSED:—Status ....................................................................................................... X0X

3.2 - Check the oil filter:

OK: GO TO 3.3

• Operate engine at 1800 rpm for 10 - 15 seconds with oil temperature above 40°C (104°F).

NOT OK: Replace the filter and carry out an operational check.

• Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, switch for transmission oil filter (S73)—Specification Switch closed (filter unrestricted):— Status .......................................................................................................................... XX1

3.3 - Check the filter by-pass circuit (cold-weather starting):

OK: GO TO 4.

• Engine speed: 1800 rpm.

NOT OK: Refer to diagnostics for erroneous signal from filter by-pass valve (cold-weather starting) (diagnostic trouble codes TCU 304178.07 or 304179.07, Section 211, Group TCU).

• Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, switch at filter by-pass valve (cold-weather starting) (B87)— Specification Engine running (switch is OPEN):— Status with oil temperature below +5°C (41°F)........................................................................................................................... 0XX Engine running (switch is CLOSED when pressurized):—Status with oil temperature over +10°C (+/- 5°C), 50°F (+/- 9°F) ....................................................................................................................... 1XX

– – –1/1

TM4726 (01NOV03)

211-TCU-57

6020 to 6920S tractors 022204

PN=1081

211 TCU 57

TCU Diagnostic Trouble Codes 4 Initial tests for diagnostic trouble code TCU304079.07

211 TCU 58

• 4.1 Calibrating the transmission: NOTE: Calibration may be performed successfully even although there is a problem in the high-pressure range of the hydrostatic unit. During calibration, the hydrostatic unit is checked in its zero-load condition only. This does not reveal how the hydrostatic unit will function under load.

OK: GO TO 5. NOT OK: Calibration and/or test-drive not possible: GO TO 5.

– Do a calibration (see Reference 245-TCU-001, Calibration and Input Addresses). Calibration with Service ADVISOR:Perform “Calibrate AutoPowr/IVT transmission - TCU020” via “Interactive Tests/Calibration” in the “Readings” menu. – If calibration cannot be carried out, make a note of the error report. • 4.2 - Test drive the tractor (to isolate the problem): – Once the tests have been completed, the checklist in DTAC solution 58908 must be sent to the relevant After-Sales Service station together with the service report and test result table. See Checklist for Diagnostic Trouble Code TCU304079.07 in Reference 253-15-001, AutoPowr/IVT Transmission — Test Result Table.

– – –1/1

TM4726 (01NOV03)

211-TCU-58

6020 to 6920S tractors 022204

PN=1082

TCU Diagnostic Trouble Codes 5 Check the amperage at the hydrostatic unit

NOTE: Proportional solenoid valves are used to actuate the hydrostatic control valve. By making an input at the address TCU 049, it is possible to cause these proportional solenoid valves to operate at different amperages. Taking engine speed into account, and with zero load, it is possible to move the swashplate through all its possible angles (function of the proportional solenoid valves). However, this does not reveal how the hydrostatic unit will function under load (high-pressure range).

211 TCU 59

• Reverse drive lever in corner park position. • Start the engine. • Access address TCU 49. Using Service ADVISOR, go to “Setup Controller” in the “Readings” menu. • Key in value XXX for the relevant proportional solenoid valve at address TCU 49, and confirm (see table for value). • Access address TCU 42 (amperage of proportional solenoid 1), TCU 43 (amperage of proportional solenoid 2) and TCU 46 (hydrostatic speed), or template TCU 901 Proportional Solenoid Test (Y1, Y2) for AutoPowr/IVT transmission. • Adjust engine speed (see table for values). • Write the hydrostatic speed of address TCU 46 in the test result log: TCU 46 –– Speed and direction of rotation, hydrostatic speed sending unit (B62)—Specification Display varies depending on input value at address TCU 49 and on engine speed:—Speed (rpm) ............................................................................................... XXXX

Test result log Model:

Serial Number:

Hours

40 km/h 25 mph

50 km/h 31 mph

Engine speed setting for 6320, 6420, 6520 and 6620 tractors: Speed A: 1083 rpm Speed B: 1896 rpm Engine speed setting for 6820 and 6920 tractors: Speed A: 1046 rpm Speed B: 1829 rpm Amperage (mA value) Input value for addr. TCU 49 Proportional solenoid 1 (Positive direction of rotation)

Desired value:

Address TCU 42

000010

50 mA

000014

400 mA

000019

900 mA

Proportional solenoid 2 (Negative direction of rotation)

Engine speed setting Actual Value

Address TCU 43

000020

50 mA

000024

400 mA

000029

900 mA

Speed A (rpm)

Speed B (rpm)

Hydrostatic output speed (rpm) (Addr. TCU 46) (~0)

(~0)

Hydrostatic output speed (rpm) (Addr. TCU 46) (~0)

(~0)

– – –1/2

TM4726 (01NOV03)

211-TCU-59

6020 to 6920S tractors 022204

PN=1083

TCU Diagnostic Trouble Codes Result of test: 50 mA: Hydrostatic speed less than 50 rpm. 400 mA: Hydrostatic speed more than 50 rpm, but less than engine speed. 900 mA: Hydrostatic speed more than/same as engine speed. Negative rotation of the hydrostatic unit is indicated by "-". Positive rotation is indicated when no plus or negative sign appears.

211 TCU 60

NOTE: If while the tractor is in motion the transmission control unit (TCU) detects a condition that could result in damage to the hydrostatic unit or transmission, it interrupts the internal power supply to the transmission (VPS1), thus preventing operation of hydrostatic unit and clutches.

OK: GO TO 6. NOT OK: • Problem with amperages (shown in addresses TCU 42 and TCU 43): Refer to circuit test for proportional solenoid valve(s) 1 and/or 2 in Section 245, Group TCU). • Output speed values in address TCU 46 not OK: Problem in the low-pressure range of the hydrostatic unit: GO TO 6.

–19– –2/2

6 Pressure test for transmission and other consumers

IMPORTANT: Always do ALL the pressure tests in the test result table, otherwise you may identify only a secondary problem and not the initial one. Before checking system pressure, lube oil pressure, reduced system pressure (pressure for other consumers), the transmission clutches and other consumers, see Reference 253-15-001, AutoPowr/IVT Transmission — Test Result Table. Once the tests have been completed, the entire test result table in DTAC solution 58908 must be sent to the relevant After-Sales Service station. For test ports, see:

OK: Send the test result table and checklist to the relevant After-Sales Service station (see DTAC solution 58908). NOT OK: Send the test result table and checklist to the relevant After-Sales Service station (see DTAC solution 58908).

• Reference 253-15-005, AutoPowr/IVT Transmission — Test Ports (6420 and 6620). • Reference 253-15-006, AutoPowr/IVT Transmission — Test Ports (6820 and 6920). For test procedure, see: • Reference 253-15-010, AutoPowr/IVT Transmission • Reference 253-15-011, AutoPowr/IVT Transmission Pressure (Pressure for Other Consumers). • Reference 253-15-013, AutoPowr/IVT Transmission • Reference 253-15-014, AutoPowr/IVT Transmission Clutch. • Reference 253-15-015, AutoPowr/IVT Transmission Clutch. • Reference 253-15-016, AutoPowr/IVT Transmission Clutch. • Reference 253-15-017, AutoPowr/IVT Transmission Clutch. • Reference 253-15-018, AutoPowr/IVT Transmission Disk Brake. • Reference 253-15-019, AutoPowr/IVT Transmission Forward Clutch (CF) • Reference 253-15-020, AutoPowr/IVT Transmission Reverse Clutch (CR)

— Checking System Pressure. — Checking Reduced System — Checking Lube Oil Pressure. — Checking Pressure at the C1 — Checking Pressure at the C2 — Checking Pressure at the C3 — Checking Pressure at the C4 — Checking Pressure at the BG — Checking Pressure at the — Checking Pressure at the

– – –1/1

TM4726 (01NOV03)

211-TCU-60

6020 to 6920S tractors 022204

PN=1084

TCU Diagnostic Trouble Codes

TCU 304080.02 — Failure in Warning Light Circuit

Diagnostic trouble code TCU 304080.02 is stored if the TCU detects a deviation in signal in the warning light’s circuit (the signal does not correspond to the warning sent via the CAN BUS). This indicates a 12-volt

warning light circuit that is open, shorted to the power supply (battery voltage), or shorted to ground. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BC5 –19–01NOV03–1/1

Diagnostics The following are possible causes: • Defective line connection between the TCU and the basic informator (cable 551). – Short circuit. – Open circuit. – Grounded circuit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-BIF-200, Basic Informator - Theory of Operation. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-61

6020 to 6920S tractors 022204

PN=1085

211 TCU 61

TCU Diagnostic Trouble Codes 2 Checking the warning light’s circuit (cable 551)

211 TCU 62

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-004, SE2 Instrument Panel. • Reference 240-10-035, SE26-Transmission Control Unit (TCU). For component location and pin arrangement see cab wiring harness W08 and cowl harness W09. – – –1/1

TCU 304081.05 — C1 Solenoid Valve, Open Circuit

Diagnostic trouble code TCU 304081.05 is stored if the transmission control unit registers resistance at the solenoid valve that does not correspond with the

switch status of the C1 range clutch. This indicates that the solenoid valve’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BC6 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C1). • An open circuit (ground cable 656 and/or positive cable 664). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304082.05, TCU 304083.05, TCU 304084.05 and TCU 304085.05 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-62

6020 to 6920S tractors 022204

PN=1086

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active 211 (tractor’s function is TCU impaired), GO TO: 63 Circuit/harness test for C1 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304082.05 — C2 Solenoid Valve, Open Circuit

Diagnostic trouble code TCU 304082.05 is stored if the transmission control unit registers resistance at the solenoid valve that does not correspond with the

switch status of the C2 range clutch. This indicates that the solenoid valve’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BC7 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C2). • An open circuit (ground cable 657 and/or positive cable 664). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304081.05, TCU 304083.05, TCU 304084.05 and TCU 304085.05 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-63

6020 to 6920S tractors 022204

PN=1087

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C2 solenoid valve; see Section 245, Group TCU in the Technical manual.

211 TCU 64

– – –1/1

TCU 304083.05 — C3 Solenoid Valve, Open Circuit

Diagnostic trouble code TCU 304083.05 is stored if the transmission control unit registers resistance at the solenoid valve that does not correspond with the

switch status of the C3 range clutch. This indicates that the solenoid valve’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BC8 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C3). • An open circuit (ground cable 658 and/or positive cable 664). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304081.05, TCU 304082.05, TCU 304084.05 and TCU 304085.05 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-64

6020 to 6920S tractors 022204

PN=1088

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active 211 (tractor’s function is TCU impaired), GO TO: 65 Circuit/harness test for C3 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304084.05 — C4 Solenoid Valve, Open Circuit

Diagnostic trouble code TCU 304084.05 is stored if the transmission control unit registers resistance at the solenoid valve that does not correspond with the

switch status of the C4 range clutch. This indicates that the solenoid valve’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BC9 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C4). • An open circuit (ground cable 659 and/or positive cable 664). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304081.05, TCU 304082.05, TCU 304083.05 and TCU 304085.05 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-65

6020 to 6920S tractors 022204

PN=1089

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C4 solenoid valve; see Section 245, Group TCU in the Technical manual.

211 TCU 66

– – –1/1

TCU 304085.05 — BG Solenoid Valve, Open Circuit

Diagnostic trouble code TCU 304085.05 is stored if the transmission control unit registers resistance at the solenoid valve that does not correspond with the

switch status of the BG disk brake. This indicates that the solenoid valve’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BCA –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (BG). • An open circuit (ground cable 654 and/or positive cable 664). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304081.05, TCU 304082.05, TCU 304083.05 and TCU 304084.05 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-66

6020 to 6920S tractors 022204

PN=1090

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for BG solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304086.05 — Park Lock Solenoid Valve, Open Circuit

Diagnostic trouble code TCU 304086.05 is stored if the transmission control unit registers resistance at the solenoid valve that does not correspond with the

switch status of the park lock. This indicates that the solenoid valve’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BCB –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (Y15-1). • An open circuit (ground cable 647 and/or positive cable 608). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-67

6020 to 6920S tractors 022204

PN=1091

211 TCU 67

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

211 TCU 68

– – –1/1

2 Checking the operation of the park lock

• Start the engine.

OK: • Diagnosis completed.

• Access address PLC 12. • Do with test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in corner park position:—Voltage range (no pressure exists) .................................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral:—Voltage range (pressure exists) .............................. between 2.0 and 4.8 volts

• Type of error indicates a loose contact, GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU. NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU.

– – –1/1

TCU 304088.05 — Proportional Solenoid Y1 (Hydrostatic Control Valve), Open Circuit

Diagnostic trouble code TCU 304088.05 is stored if the transmission control unit registers resistance at the proportional solenoid valve that does not correspond with the commanded operating position of the

hydrostatic unit. This indicates that the proportional solenoid’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BCC –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-68

6020 to 6920S tractors 022204

PN=1092

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective proportional solenoid valve (Y1). • An open circuit (ground cable 601 and/or positive cable 652). • A general problem with the VPS1 power supply (positive cable) to the proportional solenoid valves (diagnostic trouble code TCU 304089.05 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references:

211 TCU 69

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

2 Checking proportional solenoid valve Y1

• Start the engine.

OK: • Diagnosis completed.

• Access address TCU 42. • Put the reverse drive lever in corner park lock position: TCU 42 –– Amperage, proportional solenoid valve Y1—Specification Amperage in mA:—Status ........................................................................................... 050

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve Y1; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve Y1; see Section 245, Group TCU in the Technical manual.

– – –1/1

TM4726 (01NOV03)

211-TCU-69

6020 to 6920S tractors 022204

PN=1093

TCU Diagnostic Trouble Codes

TCU 304089.05 — Proportional Solenoid Y2 (Hydrostatic Control Valve), Open Circuit

211 TCU 70

Diagnostic trouble code TCU 304089.05 is stored if the transmission control unit registers resistance at the proportional solenoid valve that does not correspond with the commanded operating position of the

hydrostatic unit. This indicates that the proportional solenoid’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BCD –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective proportional solenoid valve (Y2). • An open circuit (ground cable 609 and/or positive cable 652). • A general problem with the VPS1 power supply (positive cable) to the proportional solenoid valves (diagnostic trouble code TCU 304088.05 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-70

6020 to 6920S tractors 022204

PN=1094

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve Y2

• Start the engine.

OK: • Diagnosis completed.

• Access address TCU 43. • Put the reverse drive lever in corner park lock position: TCU 43 –– Amperage, proportional solenoid valve Y2—Specification Amperage in mA:—Status ........................................................................................... 050

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve Y2; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve Y2; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304090.05 — Proportional Valve for Forward Clutch (CF), Open Circuit

Diagnostic trouble code TCU 304090.05 is stored if the transmission control unit registers resistance at the proportional solenoid valve that does not correspond with the switch status of the CF forward clutch. This

indicates that the proportional solenoid’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BCE –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-71

6020 to 6920S tractors 022204

PN=1095

211 TCU 71

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 72

• A defective proportional valve (CF). • An open circuit (ground cable 661 and/or positive cable 646). • A general problem with the power supply (positive cable) to the range clutches (diagnostic trouble code TCU 304091.05 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-72

6020 to 6920S tractors 022204

PN=1096

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve (CF) of the forward clutch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Reverse drive lever in corner park position. • Access address TCU 36. • Reverse drive lever in position for neutral: TCU 36 –– Amperage, CF Proportional Solenoid Valve for Forward Clutch— Specification Display with reverse drive lever in position for neutral:—Status ........................................................................................ 025

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve (CF) of the forward clutch; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve (CF) of the forward clutch; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304091.05 — Proportional Valve for Reverse Clutch (CR), Open Circuit

Diagnostic trouble code TCU 304091.05 is stored if the transmission control unit registers resistance at the proportional solenoid valve that does not correspond with the switch status of the CR reverse clutch. This

indicates that the proportional solenoid’s circuit is open. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BCF –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-73

6020 to 6920S tractors 022204

PN=1097

211 TCU 73

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 74

• A defective proportional valve (CR). • An open circuit (ground cable 663 and/or positive cable 646). • A general problem with the power supply (positive cable) to the range clutches (diagnostic trouble code TCU 304090.05 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-74

6020 to 6920S tractors 022204

PN=1098

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve (CR) of the reverse clutch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Reverse drive lever in corner park position. • Access address TCU 37. • Reverse drive lever in position for neutral: TCU 37 –– Amperage, CR Proportional Solenoid Valve for Reverse Clutch— Specification Display with reverse drive lever in position for neutral:—Status ........................................................................................ 025

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve (CR) of the reverse clutch; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve (CR) of the reverse clutch; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304097.04 — C1 Solenoid Valve, Grounded Circuit

Diagnostic trouble code TCU 304097.04 is stored if the TCU registers resistance at the solenoid valve that does not correspond with the switch status of the C1 range clutch and a drop in voltage can also be

detected at the solenoid valve. This indicates a short to ground in the solenoid valve’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD0 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-75

6020 to 6920S tractors 022204

PN=1099

211 TCU 75

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 76

• A defective solenoid valve (C1). • A grounded circuit in the monitored (selectable) ground lead (cable 656). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304098.04, TCU 304099.04, TCU 304100.04 and TCU 304101.04 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C1 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304098.04 — C2 Solenoid Valve, Grounded Circuit

Diagnostic trouble code TCU 304098.04 is stored if the TCU registers resistance at the solenoid valve that does not correspond with the switch status of the C2 range clutch and a drop in voltage can also be

detected at the solenoid valve. This indicates a short to ground in the solenoid valve’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD1 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-76

6020 to 6920S tractors 022204

PN=1100

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C2). • A grounded circuit in the monitored (selectable) ground lead (cable 657). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304097.04, TCU 304099.04, TCU 304100.04 and TCU 304101.04 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references:

211 TCU 77

• Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C2 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304099.04 — C3 Solenoid Valve, Grounded Circuit

Diagnostic trouble code TCU 304099.04 is stored if the TCU registers resistance at the solenoid valve that does not correspond with the switch status of the C3 range clutch and a drop in voltage can also be

detected at the solenoid valve. This indicates a short to ground in the solenoid valve’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD2 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-77

6020 to 6920S tractors 022204

PN=1101

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 78

• A defective solenoid valve (C3). • A grounded circuit in the monitored (selectable) ground lead (cable 658). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304097.04, TCU 304098.04, TCU 304100.04 and TCU 304101.04 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C3 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304100.04 — C4 Solenoid Valve, Grounded Circuit

Diagnostic trouble code TCU 304100.04 is stored if the TCU registers resistance at the solenoid valve that does not correspond with the switch status of the C4 range clutch and a drop in voltage can also be

detected at the solenoid valve. This indicates a short to ground in the solenoid valve’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD3 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-78

6020 to 6920S tractors 022204

PN=1102

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C4). • A grounded circuit in the monitored (selectable) ground lead (cable 659). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304097.04, TCU 304098.04, TCU 304099.04 and TCU 304101.04 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references:

211 TCU 79

• Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C4 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304101.04 — BG Solenoid Valve, Grounded Circuit

Diagnostic trouble code TCU 304101.04 is stored if the TCU registers resistance at the solenoid valve that does not correspond with the switch status of the BG disk brake and a drop in voltage can also be detected

at the solenoid valve. This indicates a short to ground in the solenoid valve’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD4 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-79

6020 to 6920S tractors 022204

PN=1103

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 80

• A defective solenoid valve (BG). • A grounded circuit in the monitored (selectable) ground lead (cable 654). • A general problem with the power supply (positive cable) to the range elements (diagnostic trouble codes TCU 304097.04, TCU 304098.04, TCU 304099.04 and TCU 304100.04 are saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for BG solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304102.04 — Park Lock Solenoid Valve, Grounded Circuit

Diagnostic trouble code TCU 304102.04 is stored if the TCU registers resistance at the solenoid valve that does not correspond with the switch status of the park lock and a drop in voltage can also be detected at the

solenoid valve. This indicates a short to ground in the solenoid valve’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD5 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-80

6020 to 6920S tractors 022204

PN=1104

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (Y15-1). • A grounded circuit in the monitored (selectable) ground lead (cable 647).

211 TCU 81

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-81

6020 to 6920S tractors 022204

PN=1105

TCU Diagnostic Trouble Codes 2 Checking the operation of the park lock

• Start the engine.

OK: • Diagnosis completed.

• Access address PLC 12. • Do with test with the engine running and the reverse drive lever in the positions for corner park and neutral.

211 TCU 82

PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in corner park position:—Voltage range (no pressure exists) .................................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral:—Voltage range (pressure exists) .............................. between 2.0 and 4.8 volts

• Type of error indicates a loose contact, GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU. NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU.

– – –1/1

TCU 304104.04 — Proportional Solenoid Y1 (Hydrostatic Control Valve), Grounded Circuit

Diagnostic trouble code TCU 304104.04 is stored if the TCU registers resistance at the proportional solenoid valve that does not correspond with the commanded operating position of the hydrostatic unit and a drop in

voltage can also be detected at the proportional solenoid valve. This indicates a short to ground in the proportional solenoid’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD6 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective proportional solenoid valve Y1. • A grounded circuit in the monitored (selectable) ground lead (cable 601). • A general problem with the VPS1 power supply (positive cable 652) to the proportional solenoid valves (diagnostic trouble code TCU 304105.04 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-82

6020 to 6920S tractors 022204

PN=1106

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

211 TCU 83

– – –1/1

2 Checking proportional solenoid valve Y1

• Start the engine.

OK: • Diagnosis completed.

• Access address TCU 42. • Put the reverse drive lever in corner park lock position: TCU 42 –– Amperage, proportional solenoid valve Y1—Specification Amperage in mA:—Status ........................................................................................... 050

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve Y1; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve Y1; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304105.04 — Proportional Solenoid Y2 (Hydrostatic Control Valve), Grounded Circuit

Diagnostic trouble code TCU 304105.04 is stored if the TCU registers resistance at the proportional solenoid valve that does not correspond with the commanded operating position of the hydrostatic unit and a drop in

voltage can also be detected at the proportional solenoid valve. This indicates a short to ground in the proportional solenoid’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD7 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-83

6020 to 6920S tractors 022204

PN=1107

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 84

• A defective proportional solenoid valve Y2. • A grounded circuit in the monitored (selectable) ground lead (cable 609). • A general problem with the VPS1 power supply (positive cable 652) to the proportional solenoid valves (diagnostic trouble code TCU 304104.04 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

2 Checking proportional solenoid valve Y2

• Start the engine.

OK: • Diagnosis completed.

• Access address TCU 43. • Put the reverse drive lever in corner park lock position: TCU 43 –– Amperage, proportional solenoid valve Y2—Specification Amperage in mA:—Status ........................................................................................... 050

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve Y2; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve Y2; see Section 245, Group TCU in the Technical manual.

– – –1/1

TM4726 (01NOV03)

211-TCU-84

6020 to 6920S tractors 022204

PN=1108

TCU Diagnostic Trouble Codes

TCU 304106.04 — Proportional Valve for Forward Clutch (CF), Grounded Circuit

Diagnostic trouble code TCU 304106.04 is stored if the TCU registers resistance at the proportional solenoid valve that does not correspond with the switch status of the CF forward clutch and a drop in voltage can

also be detected at the proportional solenoid valve. This indicates a short to ground in the proportional solenoid’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

211 TCU 85

LX12234,0000BD8 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective proportional valve (CF). • A grounded circuit in the monitored (selectable) ground lead (cable 661). • A general problem with the power supply (positive cable) to the range clutches (diagnostic trouble code TCU 304107.04 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-85

6020 to 6920S tractors 022204

PN=1109

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve (CF) of the forward clutch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Reverse drive lever in corner park position. • Access address TCU 36.

211 TCU 86

• Reverse drive lever in position for neutral: TCU 36 –– Amperage, CF Proportional Solenoid Valve for Forward Clutch— Specification Display with reverse drive lever in position for neutral:—Status ........................................................................................ 025

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve (CF) of the forward clutch; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve (CF) of the forward clutch; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304107.04 — Proportional Valve for Reverse Clutch (CR), Grounded Circuit

Diagnostic trouble code TCU 304107.04 is stored if the TCU registers resistance at the proportional solenoid valve that does not correspond with the switch status of the CR reverse clutch and a drop in voltage can

also be detected at the proportional solenoid valve. This indicates a short to ground in the proportional solenoid’s 12-volt circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BD9 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-86

6020 to 6920S tractors 022204

PN=1110

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective proportional valve (CR). • A grounded circuit in the monitored (selectable) ground lead (cable 663). • A general problem with the power supply (positive cable) to the range clutches (diagnostic trouble code TCU 304106.04 is saved as well). – Diagnostic trouble code TCU 304020.02 or TCU 304132.02 takes priority. Additional references:

211 TCU 87

• Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-87

6020 to 6920S tractors 022204

PN=1111

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve (CR) of the reverse clutch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Reverse drive lever in corner park position. • Access address TCU 37.

211 TCU 88

• Reverse drive lever in position for neutral: TCU 37 –– Amperage, CR Proportional Solenoid Valve for Reverse Clutch— Specification Display with reverse drive lever in position for neutral:—Status ........................................................................................ 025

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve (CR) of the reverse clutch; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve (CR) of the reverse clutch; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304113.03 — C1 Solenoid Valve, Shorted Circuit

Diagnostic trouble code TCU 304113.03 is stored if the transmission control unit registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the C1 range clutch. This

indicates a short to the power supply (battery voltage) in the solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BDA –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-88

6020 to 6920S tractors 022204

PN=1112

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C1). • A shorted circuit at the ground lead (cable 656).

211 TCU 89

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C1 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304114.03 — C2 Solenoid Valve, Shorted Circuit

Diagnostic trouble code TCU 304114.03 is stored if the transmission control unit registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the C2 range clutch. This

indicates a short to the power supply (battery voltage) in the solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BDB –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-89

6020 to 6920S tractors 022204

PN=1113

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 90

• A defective solenoid valve (C2). • A shorted circuit at the ground lead (cable 657). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C2 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304115.03 — C3 Solenoid Valve, Shorted Circuit

Diagnostic trouble code TCU 304115.03 is stored if the transmission control unit registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the C3 range clutch. This

indicates a short to the power supply (battery voltage) in the solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BDC –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-90

6020 to 6920S tractors 022204

PN=1114

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (C3). • A shorted circuit at the ground lead (cable 658).

211 TCU 91

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C3 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304116.03 — C4 Solenoid Valve, Shorted Circuit

Diagnostic trouble code TCU 304116.03 is stored if the transmission control unit registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the C4 range clutch. This

indicates a short to the power supply (battery voltage) in the solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BDD –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-91

6020 to 6920S tractors 022204

PN=1115

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 92

• A defective solenoid valve (C4). • A shorted circuit at the ground lead (cable 659). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for C4 solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304117.03 — BG Solenoid Valve, Shorted Circuit

Diagnostic trouble code TCU 304117.03 is stored if the transmission control unit registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the BG disk brake. This

indicates a short to the power supply (battery voltage) in the solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BDE –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-92

6020 to 6920S tractors 022204

PN=1116

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective solenoid valve (BG). • A shorted circuit at the ground lead (cable 654).

211 TCU 93

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired), GO TO: Circuit/harness test for BG solenoid valve; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304118.03 — Park Lock Solenoid Valve, Shorted Circuit

Diagnostic trouble code TCU 304118.03 is stored if the transmission control unit registers resistance and voltage at the solenoid valve that does not correspond with the switch status of the park lock. This indicates a

short to the power supply (battery voltage) in the solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BDF –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-93

6020 to 6920S tractors 022204

PN=1117

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU 94

• A defective solenoid valve (Y15-1). • A shorted circuit at the ground lead (cable 647). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-94

6020 to 6920S tractors 022204

PN=1118

TCU Diagnostic Trouble Codes 2 Checking the operation of the park lock

• Start the engine.

OK: • Diagnosis completed.

• Access address PLC 12. • Do with test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in corner park position:—Voltage range (no pressure exists) .................................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral:—Voltage range (pressure exists) .............................. between 2.0 and 4.8 volts

• Type of error indicates a loose contact, GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU. NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU.

– – –1/1

TCU 304120.03 — Proportional Solenoid Y1 (Hydrostatic Control Valve), Shorted Circuit

Diagnostic trouble code TCU 304120.03 is stored if the transmission control unit registers resistance and voltage at the proportional solenoid valve that does not correspond with the commanded operating position of the hydrostatic unit. This indicates a general problem

with battery voltage or that the proportional solenoid’s circuit is shorted to power supply (battery voltage). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE0 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective proportional solenoid valve Y1. • A shorted circuit at the ground lead (cable 601). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-95

6020 to 6920S tractors 022204

PN=1119

211 TCU 95

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

211 TCU 96

– – –1/1

2 Checking proportional solenoid valve Y1

• Start the engine.

OK: • Diagnosis completed.

• Access address TCU 42. • Put the reverse drive lever in corner park lock position: TCU 42 –– Amperage, proportional solenoid valve Y1—Specification Amperage in mA:—Status ........................................................................................... 050

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve Y1; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve Y1; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304121.03 — Proportional Solenoid Y2 (Hydrostatic Control Valve), Shorted Circuit

Diagnostic trouble code TCU 304121.03 is stored if the transmission control unit registers resistance and voltage at the proportional solenoid valve that does not correspond with the commanded operating position of the hydrostatic unit. This indicates a general problem

with battery voltage or that the proportional solenoid’s circuit is shorted to power supply (battery voltage). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE1 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-96

6020 to 6920S tractors 022204

PN=1120

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A defective proportional solenoid valve Y2. • A shorted circuit at the ground lead (cable 609).

211 TCU 97

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

2 Checking proportional solenoid valve Y2

• Start the engine.

OK: • Diagnosis completed.

• Access address TCU 43. • Put the reverse drive lever in corner park lock position: TCU 43 –– Amperage, proportional solenoid valve Y2—Specification Amperage in mA:—Status ........................................................................................... 050

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve Y2; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve Y2; see Section 245, Group TCU in the Technical manual.

– – –1/1

TM4726 (01NOV03)

211-TCU-97

6020 to 6920S tractors 022204

PN=1121

TCU Diagnostic Trouble Codes

TCU 304122.03 — Proportional Valve for Forward Clutch (CF), Shorted Circuit

211 TCU 98

Diagnostic trouble code TCU 304122.03 is stored if the transmission control unit registers resistance and voltage at the proportional solenoid valve that does not correspond with the switch status of the CF forward

clutch. This indicates a short to the power supply (battery voltage) in the proportional solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE2 –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • A defective proportional valve (CF). • A shorted circuit at the ground lead (cable 661). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-98

6020 to 6920S tractors 022204

PN=1122

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve (CF) of the forward clutch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Reverse drive lever in corner park position. • Access address TCU 36. • Reverse drive lever in position for neutral: TCU 36 –– Amperage, CF Proportional Solenoid Valve for Forward Clutch— Specification Display with reverse drive lever in position for neutral:—Status ........................................................................................ 025

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve (CF) of the forward clutch; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve (CF) of the forward clutch; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304123.03 — Proportional Valve for Reverse Clutch (CR), Shorted Circuit

Diagnostic trouble code TCU 304123.03 is stored if the transmission control unit registers resistance and voltage at the proportional solenoid valve that does not correspond with the switch status of the CR reverse

clutch. This indicates a short to the power supply (battery voltage) in the proportional solenoid’s circuit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE3 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-99

6020 to 6920S tractors 022204

PN=1123

211 TCU 99

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU ,100

• A defective proportional valve (CR). • A shorted circuit at the ground lead (cable 663). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (tractor’s function is impaired): GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-100

6020 to 6920S tractors 022204

PN=1124

TCU Diagnostic Trouble Codes 2 Checking proportional solenoid valve (CR) of the reverse clutch

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Reverse drive lever in corner park position. • Access address TCU 37. • Reverse drive lever in position for neutral: TCU 37 –– Amperage, CR Proportional Solenoid Valve for Reverse Clutch— Specification Display with reverse drive lever in position for neutral:—Status ........................................................................................ 025

• Type of error indicates a loose contact, GO TO: Circuit/harness test for proportional solenoid valve (CR) of the reverse clutch; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO: Circuit/harness test for proportional solenoid valve (CR) of the reverse clutch; see Section 245, Group TCU in the Technical manual.

– – –1/1

TCU 304128.00 — System Voltage Too High

Diagnostic trouble code TCU 304128.00 is saved if the operating voltage of the transmission control unit

(battery voltage) is more than 16 volts. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE4 –19–01AUG01–1/1

Diagnostics

NOTE: The following are possible causes: • Tractor has been jump-started. • Defective alternator. • Defective battery. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-101

6020 to 6920S tractors 022204

PN=1125

211 TCU ,101

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 1.2

211 TCU ,102 1.2

OK: GO TO 2.

Perform a visual inspection of he alternator and battery:

NOT OK: Repair as needed and carry out an operational test.

• Check all components for visible damage. • Check all relevant connectors of the supply circuit for bad, loose, widened or corroded contacts:

– – –1/1

2 Check alternator D+ voltage

• Access address BIF 032:

OK: Diagnosis completed.

BIF 32 –– Voltage, Alternator D+ Voltage—Specification Engine running in low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: Check alternator, refer to "Alternator Checks", Section 240, Group 15.

– – –1/1

TCU 304129.01 — System Voltage Too Low

Diagnostic trouble code TCU 304129.01 is saved if the operating voltage of the transmission control unit

(battery voltage) is less than 9 volts. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE5 –19–01NOV03–1/1

TM4726 (01NOV03)

211-TCU-102

6020 to 6920S tractors 022204

PN=1126

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • • • • • •

Defective battery. Defective alternator G02. Drive belt is defective or slipping. High current requirements. High resistance in wiring harness. Defective lead connection to the transmission control unit (cable 052).

211 TCU ,103

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2

OK: GO TO 2.

Perform a visual inspection of he alternator and battery:

NOT OK: Recondition as required and carry out an operational test.

• Check all components for visible damage. • Check all relevant connectors of the supply circuit for bad, loose, widened or corroded contacts. • Make sure that the drive belt is installed correctly and check for signs of it slipping. • Check ground connections between battery/engine and cab. – Check mounting surfaces for corrosion / paint and loose mounting bolts.

– – –1/1

TM4726 (01NOV03)

211-TCU-103

6020 to 6920S tractors 022204

PN=1127

TCU Diagnostic Trouble Codes 2 Checking the voltage at the tractor’s battery

211 TCU ,104

• Access address BCU 032 :

OK: GO TO 4

BCU032 –– Voltage, Voltage at Tractor’s Battery (BCU Operating Voltage)— Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks" Section 240, Group 15.

OK: Diagnosis completed.

• Check battery, refer to "Battery Checks", Section 240, Group 15. NOT OK: Recondition as required and carry out an operational test. – – –1/1

4 Checking the TCU’s operating voltage circuit (cables 052 and 050)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (TCU). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TCU 304132.02 — Fault in the Internal Transmission Power Supply (VPS)

Diagnostic trouble code TCU 304132.02 is stored if the 12-volt circuit for internal transmission power supply is open, shorted to the power supply (battery voltage), or

shorted to ground. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE6 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-104

6020 to 6920S tractors 022204

PN=1128

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Faulty transmission enable relay K208. • Faulty line connections (cables 608, 652, 646 or 664). – Open circuit. – Short circuit. – Short to ground (fuse F05/05 is overloaded or blown). • Faulty transmission enable signal. • Faulty TCU.

211 TCU ,105

NOTE: When ignition is ON, the internal transmission power supply (VPS1) provides 12 volts to the following components: • Proportional solenoids Y1 and Y2 of hydrostatic unit control valves (lead 652). • TCU-monitored park-lock solenoid valve Y15-1 (lead 608). • TCU self-identification current (lead 608). • Power supply circuit for transmission enable relay K208 (lead 652). • Power supply for range elements C1, C2, C3, C4 and BG (lead 664) with reverse drive lever in neutral (transmission enable relay K208 tripped). • Power supply for direction clutches (lead 646) with reverse drive lever in neutral (transmission enable relay K02/1 tripped) and the clutch pedal not depressed. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-105

6020 to 6920S tractors 022204

PN=1129

TCU Diagnostic Trouble Codes

211 TCU ,106

2 Checking the control voltage and power supply (cable 652) for transmission enable relay K02/1 (from transmission control unit)

• Engine OFF, ignition ON.

OK: • Diagnosis completed.

• Access address UIC 11: UIC 11 –– Status, power supply (cable 652) for transmission enable relay K02/1— Specification Internal transmission power supply (VPS) present:—Status ............................................................................................... X1X

• Type of error indicates a loose contact, GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU. NOT OK: GO TO: Circuit/Harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, section 245, group TCU.

– – –1/1

TCU 304136.02 — Control Unit, Incorrect Software Version

Diagnostic trouble code TCU 304136.02 is stored if the TCU’s software does not match the existing

transmission hardware. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE7 –19–01AUG01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the transmission control unit (TCU) and calibrate the transmission. – – –1/1

TM4726 (01NOV03)

211-TCU-106

6020 to 6920S tractors 022204

PN=1130

TCU Diagnostic Trouble Codes

TCU 304137.02 — Control Unit, Internal Fault

Diagnostic trouble code TCU 304137.02 is saved when the transmission control unit registers an EEPROM

error. The diagnostic trouble code triggers the alarm level: “Information”.

211 TCU ,107

LX12234,0000BE8 –19–01AUG01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the transmission control unit (TCU) and calibrate the transmission. – – –1/1

TCU 304138.02 — Control Unit, Internal Fault

Diagnostic trouble code TCU 304138.02 is saved when an electronic malfunction is registered in the control

unit. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BE9 –19–01AUG01–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-TCU-107

6020 to 6920S tractors 022204

PN=1131

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (diagnostic trouble code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the transmission control unit (TCU) and calibrate the transmission.

211 TCU ,108

– – –1/1

TCU 304139.11 — Control Unit Connected to Wrong Wiring Harness Connector

Diagnostic trouble code TCU 304139.11 is saved when the transmission control unit detects an erroneous signal in the circuit of the control unit identification.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BEA –19–01NOV03–1/1

Diagnostics The following are possible causes: • Wrong control unit connected to TCU connector X332. • Open circuit at lead 608. • A problem in the VPS1 internal transmission power supply (lead 652): – Diagnostic trouble codes TCU 304020.02 and/or TCU 304132.02 take priority. • Defective user interface controller (UIC). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-108

6020 to 6920S tractors 022204

PN=1132

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. TCU ,109

– – –1/1

2 Checking the circuit

2.1 - Check the circuit

OK: Diagnosis completed.

• Access address TCU 06: NOT OK: GO TO 2.2 TCU 06 –– Status, control unit identification—Specification 12 volts at pin 41 (correct control unit connected):—Status .................................................................................................... X1X

2.2 - Check the controller:

OK: If the correct controller is connected, GO TO 2.3.

Check the control unit connected to TCU connector X332 (is the correct control unit connected?).

NOT OK: Connect the correct control unit to connector X332 and test its functionality.

2.3 - Check the connecting lead:

OK: Replace the controller and carry out an operational test.

• Ignition OFF. TCU –– plug X332 (W08)—Specification Self-identification circuit:—Continuity ........................ between pins 41 and 58 (lead 608)

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit. For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TCU 304140.12 — Control Unit, Wrong Input Value

Diagnostic touble code TCU 304140.12 is saved when the transmission control unit registers a false setting/input in the tractor model address. The

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BEB –19–01SEP02–1/1

TM4726 (01NOV03)

211-TCU-109

6020 to 6920S tractors 022204

PN=1133

TCU Diagnostic Trouble Codes Diagnosis Additional References: 211 TCU ,110

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the input address

• Access address TCU 44:

OK: Diagnosis completed.

TCU 44 –– Input, tractor type—Specification Input for 6420 tractors with Stage I engine to 97/68/EC (ECU Level 4):— Status .................................................................................................................... Input for 6320 and 6420 tractors with Stage II engine to 97/68/EC (ECU Level 11):—Status ........................................................................................................... Input for 6620 tractors:—Status ............................................................................ Input for 6820 and 6920 tractors:— Status ....................................................................................................................

051001

NOT OK: Modify setting, confirm and carry out an operational test.

051002 051004 051003

– – –1/1

TCU 304146.11 — Transmission Output Speed does Not Match Transmission Output Speed at PLC

Diagnostic trouble code TCU 304146.11 is saved if a difference in frequency is detected between the output signals of the transmission output speed sender. The transmission output speed that is registered directly by

the TCU does not match with the amplified signal from the PLC’s transmission output speed sender. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BEC –19–01OCT03–1/1

TM4726 (01NOV03)

211-TCU-110

6020 to 6920S tractors 022204

PN=1134

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: • The PLC’s transmission output speed sender (B84) is mechanically defective. • The PLC’s transmission output speed sender (B84) is electrically defective. – Diagnostic trouble codes PLC 328010.31 and PLC 328012.31 take priority. • The PLC’s transmission output speed sender is incorrectly installed (sender’s position). • The TCU’s transmission output speed sender (B63) is mechanically defective. • The TCU’s transmission output speed sender is incorrectly installed (sender’s position). • Defective line between the PLC and TCU (cable 696, amplified speed signal). • A problem transmitting the speed signal, due to dirt or a defect at the transmitting gearwheel.

211 TCU ,111

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Sending Unit for Transmission Output Speed (B84) on Tractors with AutoPowr/IVT Transmission” on 6420 and 6620 tractors (Repair Manual, Section 40, Group 30). • “Replacing the PLC’s Transmission Speed Sending Unit (B84)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble code PLC 328010.31 or PLC 328012.31 takes priority.

– – –1/1

TM4726 (01NOV03)

211-TCU-111

6020 to 6920S tractors 022204

PN=1135

TCU Diagnostic Trouble Codes 2 Checking the TCU’s transmission output speed sender (B63)

211 TCU ,112

Diagnostics with Service ADVISOR:

OK: GO TO 3

• Start the engine. • Access template TCU905 - Sending unit for transmission output speed (B63). • Do this check while the tractor is in motion: – The display of channels 1 and 2 should alternate between “0” and “1”:

NOT OK: Replace the sender with a new one and carry out an operational test.

TCU 011 –– Status, transmission output speed sender (B63)—Specification Signal from channel 1 present:—Status ..................................................................... 1XX Signal from channel 2 present:—Status ..................................................................... X1X

– Doubling travel speed results in a doubling of the output value in address TCU 47. TCU 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

Diagnosis with the basic informator or performance monitor: • Start the engine. NOTE: The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 47. • Do this check while the tractor is in motion. • Doubling travel speed results in a doubling of the output value in address UIC 47. UIC 47–– Speed, transmission output speed sender (B63)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

– – –1/1

3 Checking the PLC’s transmission output speed (B84)

See Reference 245-PLC-102, Circuit test for transmission output speed sender (B84).

OK: GO TO 4. NOT OK: Replace the sender with a new one and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-TCU-112

6020 to 6920S tractors 022204

PN=1136

TCU Diagnostic Trouble Codes 4 Checking the line connection between the PLC and TCU

OK: • Check the connections for loose, widened, slid-back or corroded contacts.

Check lead 696 (amplified speed signal): • for an open circuit. • for a grounded circuit. • for a shorted circuit. Cable 696 (amplified speed signal from PLC) W08 — Cab wiring harness From

To

X382-pin 29 (PLC)

X332-pin 65 (TCU)

• Check that the sender is installed properly (sender’s position). • Check the sender’s gearwheel for signs of mechanical damage. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TCU 304147.11 — Park Lock Solenoid Valve of PLC is Defective

Diagnostic trouble code TCU 304147.11 is saved if the PLC reports via the CAN BUS that park lock solenoid

valve (Y15-2) is defective. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BED –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-113

6020 to 6920S tractors 022204

PN=1137

211 TCU ,113

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU ,114

• A defective park lock solenoid valve Y15-2: – Diagnostic trouble code PLC 328020.31 or PLC 328021.31 is also stored and takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 PLC diagnostic trouble code(s) take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: If diagnostic trouble code is active and no PLC diagnostic trouble code(s) exist, GO TO: Reference 245-PLC-101, Circuit test for park lock solenoid valve (Y15-2).

– – –1/1

TCU 304149.12 — Park Lock Engaged during Power Zero

Diagnostic trouble code TCU 304149.12 is stored if the TCU detects that the park lock is engaged, even although “power zero” is commanded by the user

interface controller at the same time. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BEE –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-114

6020 to 6920S tractors 022204

PN=1138

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • Electrically faulty park lock solenoid valves Y15-1 and Y15-2: – Diagnostic trouble codes TCU 304086.05, TCU 304102.04, TCU 304118.03 and TCU 304147.11 and/or PLC 328020.31 and PLC 328021.31 take priority. • Defective park lock oil pressure sender B90: – Diagnostic trouble codes PLC 328016.31 and PLC 328017.31 take priority. • Problem in the hydraulic circuit of the park lock control block. – Mechanically faulty park lock solenoid valves Y15-1 and Y15-2. – Hydraulic problem. Additional references:

211 TCU ,115

• Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-115

6020 to 6920S tractors 022204

PN=1139

TCU Diagnostic Trouble Codes 2 Checking the park lock pressure sender

2.1 Check the basic setting (neutral position) of the park lock’s pressure sender:

OK: GO TO 2.2

• Access address PLC 12.

NOT OK: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC.

PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Park lock’s pressure sender (B90) not under pressure, with ignition ON:— Voltage (neutral range) ......................................................... between 0.3 and 0.75 volts

211 TCU ,116

2.2 Checking the operation of the park lock: • Start the engine. • Access address PLC 12. • Do with test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in position for corner park (with engine running):—Voltage (no pressure exists) ..................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral (with engine running):—Voltage (pressure exists) ...................................................................... between 2.0 and 4.8 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC. NOT OK: GO TO 3.

– – –1/1

3 Checking the park lock solenoid valve Y15-1

• Start the engine.

OK: GO TO 4.

• Access address TCU 38.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group UIC.

• Do with test with the engine running and the reverse drive lever in the positions for corner park and neutral. TCU 38 –– Status, park lock solenoid valve Y15-1 —Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... XX0 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. XX1

– – –1/1

4 Checking the park lock solenoid valve Y15-2

• Ignition ON (engine OFF).

OK: GO TO 5.

• Access address PLC 16:

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-2); see Technical Manual, section 245, group PLC.

PLC 16 — Status, solenoid valve Y15-2—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... 000 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. 010

– – –1/1

TM4726 (01NOV03)

211-TCU-116

6020 to 6920S tractors 022204

PN=1140

TCU Diagnostic Trouble Codes 5 Checking pressure at the park lock control block

• Connect pressure test kit FKM10470 to the test port for measuring system power at the park lock control block. See Reference 253-15-021, AutoPowr/IVT Transmission — Checking Park Lock Pressure. • Start the engine.

OK: Pressure exists, but voltage in address PLC 12 is not to specification: Replace the park lock’s pressure sender (B90) and repeat the test.

• Access address PLC 12. NOT OK: If pressure is not to specification: GO TO 6.

• Run the engine at 1800 rpm. Park lock pressure and values on the display in diagnostic address PLC 12— Specification Reverse drive lever in position for neutral:—Park lock control block, pressure .................................................................................. 2000 kPa (20 bar; 290 psi) Voltage in address PLC 12 ..................................................... between 2.0 and 4.8 volts Reverse drive lever in corner park position:—Park lock control block, pressure .............................................................................................. 0 kPa (0 bar; 0 psi) Voltage in address PLC 12 ................................................... between 0.3 and 0.75 volts

– – –1/1

6 Problem in the park lock control block

Check the control block’s components for mechanical defects. • Solenoid valves Y15-1 and Y15-2, and check-valve.

OK: Check the control block for signs of damage. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TCU 304150.00 — Power Zero Signal is Transmitted by the UIC for Too Long

Diagnostic trouble code TCU 304150.00 is saved when the transmission control unit receives the power zero signal from the user interface controller via the CAN

BUS for more than 5 minutes. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000C6F –19–01SEP02–1/1

TM4726 (01NOV03)

211-TCU-117

6020 to 6920S tractors 022204

PN=1141

211 TCU ,117

TCU Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 TCU ,118

• A defective reverse drive lever (S80). • A problem at the signal leads (leads 206, 207, 209, 214, 219, 225 and/or 268) between the reverse drive lever and the UIC. Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

TM4726 (01NOV03)

211-TCU-118

6020 to 6920S tractors 022204

PN=1142

TCU Diagnostic Trouble Codes

TCU 304151.11 — Transmission Output Speed does Not Match Transmission Output Speed at PLC (CAN BUS Value)

Diagnostic trouble code TCU 304151.11 is saved when there is a difference in frequency between the signal sent by transmission output speed sender B63 (the TCU’s sender) and B84 (the PLC’s sender). The diagnostic trouble code triggers the alarm level: “CAUTION”. NOTE: The following are possible causes: • The PLC’s transmission output speed sender (B84) is mechanically defective. • The PLC’s transmission output speed sender (B84) is electrically defective. – Diagnostic trouble codes PLC 328010.31 and PLC 328012.31 take priority. • The PLC’s transmission output speed sender is incorrectly installed (sender’s position). • The TCU’s transmission output speed sender (B63) is mechanically defective. • The TCU’s transmission output speed sender is incorrectly installed (sender’s position). • Defective line between the PLC and TCU (cable 696, amplified speed signal). • A problem transmitting the speed signal, due to dirt or a defect at the transmitting gearwheel.

NOTE: Go through the procedure for diagnostic trouble code TCU 304146.11 (Transmission Output Speed does Not Match Transmission Output Speed at PLC).

211 TCU ,119

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing the Transmission Speed Sending Unit” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Transmission Speed Sending Unit” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • “Replacing the Sending Unit for Transmission Output Speed (B84) on Tractors with AutoPowr/IVT Transmission” on 6420 and 6620 tractors (Repair Manual, Section 40, Group 30). • “Replacing the PLC’s Transmission Speed Sending Unit (B84)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

LX12234,0000BEF –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-119

6020 to 6920S tractors 022204

PN=1143

TCU Diagnostic Trouble Codes

TCU 304152.00 — Transmission Oil Temperature Very High

211 TCU ,120

Diagnostic trouble code TCU 304152.00 is saved when the transmission oil temperature is more than 100°C

(212°C). This diagnostic trouble code triggers the alarm level: “Stop Engine”.

LX12234,0000BF0 –19–01NOV03–1/1

Diagnostics The following are possible causes: • Severe loading of the hydraulic system or transmission. • Transmission oil level is too low. • Oil filter or cooling passages are blocked. – The diagnostic trouble code for a contaminated filter (TCU 304176.00) takes priority. • Defective LTC coolant pump M24. • Defective thermostat in the oil cooler by-pass circuit of the transmission oil circuit. • Defective oil cooler. • Defective transmission oil temperature sender (erroneous valid/maximum temperature range). • Faulty transmission air pump (rapid heating of the oil and severe loss of performance caused by excess oil in the transmission case). • A damaged transmission. • A fault in the hydraulic system or brake system. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 230-20-001, Fuel, Air Intake and Cooling Systems, Cold-Weather Starting Aids - Description of Components — Summary of References. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 270-20-001, PFC Hydraulic System — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-TCU-120

6020 to 6920S tractors 022204

PN=1144

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 - Operational check on LTC coolant pump M24: The M24 coolant pump (for function and location, see reference 230-20-030, Description of Coolant Circuit) is controlled via the basic control unit (BCU): • Pump is switched on when engine speed exceeds 1000 rpm. • Pump is switched off engine speed drops below 900 rpm.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2 TCU ,121 OK: If pressure build-up can be perceived: GO TO 1.3 NOT OK: If pressure build-up cannot be perceived: GO TO 10.

Test: Check the condition of the coolant hose between the pump and the intercooler when engine speed is approx. 900 rpm, and again at 1050 rpm. Pressure build-up at the pump can be perceived from approx. 1000 rpm, when the coolant hose becomes more solid.

1.3 - Visual check: Perform a visual inspection of the transmission system (cooling system): • • • • • • • •

Check and clean side panels, front cover and screens (if equipped). Check for signs of damage at the oil cooling system. Check the system for oil leaks. Check the oil hoses and pipes for kinks and dents. Check the oil level in the transmission (see Operator’s Manual). Check filter. Faulty viscous fan drive. Check that the oil has the correct viscosity.

OK: No visual damage of cooling system recognizable: GO TO 2. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

2 Checking the transmission oil temperature sender

Temperature check:

OK: If the temperature shown on the gauge is realistic, GO TO 3.

• Access address TCU 21: TCU 21 –– Status, transmission oil temperature sender (displayed in °C)— Specification Transmission oil temperature:— Temperature range .................................................... -50°C to +120°C (-58°F to +248°F) Temperature-alarm threshold ..................................................................... 101°C (214°F)

NOT OK: If the temperature shown on the gauge is not realistic, see procedure for diagnostic trouble code TCU 304024.04 (Transmission Oil Temperature Sender, Short to Ground). – – –1/1

TM4726 (01NOV03)

211-TCU-121

6020 to 6920S tractors 022204

PN=1145

TCU Diagnostic Trouble Codes 3 Checking that the thermostat in the transmission oil circuit is operating properly 211 TCU ,122

At temperatures in excess of 55°C (131°F), the oil cooler inlet line should have the same noticeably hotter temperature as the transmission oil circuit (to check the temperature of the transmission oil, call up address TCU 21). Thermostat, temperature range—Specification Thermostat starts to open:— Temperature ................................................................................................. 55°C (131°F) Thermostat fully open:—Temperature ......................................................... 70°C (158°F)

OK: GO TO 4. NOT OK: Replace the thermostat and carry out an operational test.

– – –1/1

4 Isolate or identify the cause of the overheating

Ask the operator: • How does the machine function? • When does the fault occur? • During what type of work does the fault occur? – Fault comes along with unusual noise? – Fault occurs during work with special implement? (Does the implement comply fully with technical specifications?) • Does the tractor comply fully with technical specifications?

OK: Problem identified in the transmission circuit: GO TO 7. OK: Problem identified in hydraulic circuit: GO TO 8. OK: Problem identified in brake circuit: GO TO 9. NOT OK: Problem (cause) cannot be identified: GO TO 5. – – –1/1

5 Checking the cooling system/oil cooler

• Check the pressure at the oil cooler: – See Reference 253-15-012, AutoPowr/IVT Transmission — Checking Oil Cooler Pressure. • Check the fan drive: – See Reference 230-15-090, Checking the Viscous Fan Drive.

OK: GO TO 6. NOT OK: Recondition as required and carry out an operational test. – – –1/1

6 Operational checks Isolate or identify the cause of the overheating: for hydraulic/transmission • Reference 253-10-001, AutoPowr/IVT Transmission — Operational Checkout system • Reference 270-10-010, Hydraulic System Load Check. • Reference 270-10-020, Hitch Control - Operational Check. • Reference 270-10-040, SCV - Operational Checks.

OK: No problem identified during check: Do the system checks: GO TO 7. NOT OK: Problem in the transmission circuit: GO TO 7. NOT OK: Problem identified in the hydraulic circuit: GO TO 8.

– – –1/1

7 System check for AutoPowr/IVT transmission

Reference 253-15-002, AutoPowr/IVT Transmission — Checking the Transmission Oil Circuit.

TM4726 (01NOV03)

211-TCU-122

OK: GO TO 8. NOT OK: Recondition as required and carry out an operational test. – – –1/1

6020 to 6920S tractors 022204

PN=1146

TCU Diagnostic Trouble Codes 8 System check for PFC hydraulic system

See Reference 270-15-012, Checking the PFC Hydraulic System.

OK: GO TO 9. NOT OK: Recondition as required and carry out an operational test. – – –1/1

9 Checking the brake system

Actuate the brakes several times during a test-drive, then check the brake housing for overheating.

OK: Diagnosis completed.

See Reference 260-15-001, Steering and Brakes, Tests and Adjustment - Summary of References

NOT OK: Recondition as required and carry out an operational test. – – –1/1

10 Checking the LTC coolant pump M24

• Check 20-amp fuse F03/09 and 30-amp fuse F22 between the battery and the pump. • Check the relay (K02/3) for the LTC coolant pump. • Check the setting in address BCU 34. For input values, see: Address BCU 034 –– Basic Functions, LTC Coolant Pump Control Function, Section 245, Group BCU in the Technical Manual. • Check control lead 373, positive lead 382 and ground lead 310 of the LTC coolant pump.

OK: Repair the LTC coolant pump (M24) as needed and carry out an operational test. NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-025, SE16I - Basic Control Unit (BCU) (Intercooler). For component location and pin arrangement see starting aid wiring harness W03 and cab wiring harness W08.

– – –1/1

TCU 304153.13 — Control Unit Not Calibrated

Diagnostic trouble code TCU 304153.13 is stored if the TCU has not been calibrated yet, is incorrectly calibrated or if calibration has not been completed. All

the calibratable values in the memory are replaced by basic settings defined at the factory. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BF1 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-123

6020 to 6920S tractors 022204

PN=1147

211 TCU ,123

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU ,124

• • • •

A new control unit has not yet been calibrated. Calibration has been aborted. Calibration has been carried out incorrectly. Fault in the transmission, calibration cannot be carried out.

Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes. 1.2 Priority diagnostic trouble codes that indicate damage to the transmission must be processed first.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: If the diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF) and there are no priority diagnostic codes: Calibrate the transmission. See Reference 245-TCU-001, Calibration and Input Addresses.

– – –1/1

TM4726 (01NOV03)

211-TCU-124

6020 to 6920S tractors 022204

PN=1148

TCU Diagnostic Trouble Codes

TCU 304154.00 — INFORMATION FOR OPERATOR: Transmission Input Speed Too High

Diagnostic trouble code TCU 304154.00 is stored if the TCU detects an excessively high transmission input speed (engine speed). Speed (travel speed) should be reduced. The diagnostic trouble code triggers the alarm level: “CAUTION”.

• A defect in the engine control unit’s monitoring circuit: – ECU diagnostic trouble codes must be processed first. Additional references:

NOTE: If an excessive speed is displayed that cannot be accounted for by the way the tractor is being driven, the following is a possible cause:

• Reference 245-TCU-200, Theory of Operation (Transmission Control Unit).

• A mechanical defect at transmission input speed sender B61: – Diagnostic trouble codes TCU 304064.02 and TCU 304072.11 take priority.

211 TCU ,125

• Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

LX12234,0000BF2 –19–01AUG01–1/1

TCU 304155.00 — INFORMATION FOR OPERATOR: Transmission Output Speed Too High

Diagnostic trouble code TCU 304155.00 is saved when the transmission control unit registers an excessive travel speed for the tractor. Travel speed should be reduced. The diagnostic trouble code triggers the alarm level: “CAUTION”.

• A mechanical defect at transmission output speed sender B63: – Diagnostic trouble codes TCU 304064.02, TCU 304146.11 and/or TCU 304151.11 take priority.

NOTE: If an excessive speed is displayed that cannot be accounted for by the way the tractor is being driven, the following is a possible cause:

LX12234,0000BF3 –19–01AUG01–1/1

TM4726 (01NOV03)

211-TCU-125

6020 to 6920S tractors 022204

PN=1149

TCU Diagnostic Trouble Codes

TCU 304156.01 — INFORMATION FOR THE OPERATOR: Transmission Warm-up Routine is Active

211 TCU ,126

Diagnostic trouble code TCU 304156.01 is stored if the transmission control unit (TCU) detects that the transmission oil is too cold for the tractor to operate. The transmission is in its first warm-up phase (warming via engine). For information for the operator, this diagnostic trouble code generates diagnostic trouble code UIC 305057.01 or UIC 305058.01 and triggers the alarm level: “Information”.

although the transmission oil is obviously warm already, this indicates that the transmission oil temperature sender is defective (deal with the TCU diagnostic trouble codes).

NOTE: If the tractor goes through its warm-up routine every time the engine is restarted, even

LX12234,0000C7E –19–01SEP02–1/1

TCU 304157.01 — INFORMATION FOR THE OPERATOR: Transmission Warm-up Routine is Active

Diagnostic trouble code TCU 304157.01 is stored if the transmission control unit (TCU) detects that the transmission oil is too cold for the tractor to operate. The transmission is in its second warm-up phase (warming via engine and hydrostatic unit). For information for the operator, this diagnostic trouble code generates diagnostic trouble code UIC 305057.01 or UIC 305058.01 and triggers the alarm level: “Information”.

although the transmission oil is obviously warm already, this indicates that the transmission oil temperature sender is defective (deal with the TCU diagnostic trouble codes).

NOTE: If the tractor goes through its warm-up routine every time the engine is restarted, even

LX12234,0000C7F –19–01SEP02–1/1

TM4726 (01NOV03)

211-TCU-126

6020 to 6920S tractors 022204

PN=1150

TCU Diagnostic Trouble Codes

TCU 304160.09 — Engine Control Unit has Stopped Transmitting Data

Diagnostic trouble code TCU 304160.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the transmission control unit. Reception of CAN messages that are required for operation of the TCU is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”. Diagnostic trouble code TCU 304160.09

does not necessarily have any real meaning. It is often stored by accident when work is done in the diagnostic mode. You only need to attend to this diagnostic trouble code if it is stored in conjunction with diagnostic trouble codes in the user interface controller (UIC) that also refer to a problem in transmitting data to the engine control unit (UIC 305051.09, 305052.09, 305053.09, 305055.09 and 305056.09).

LX12234,0000BF4 –19–01NOV03–1/1

TM4726 (01NOV03)

211-TCU-127

6020 to 6920S tractors 022204

PN=1151

211 TCU ,127

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 TCU ,128

• Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09 and/or UIC 305056.09). • Defective 29-bit CAN BUS connection or power supply to the transmission control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305054.09, UIC 305190.09 and/or SIC 334003.09). • A general problem with the 29-bit CAN BUS (diagnostic trouble codes TCU 304161.09 and TCU 304166.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: • A fault in the ECU’s monitoring circuit. – ECU diagnostic trouble codes take priority. • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-128

6020 to 6920S tractors 022204

PN=1152

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and TCU no priority diagnostic ,129 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-TCU-129

6020 to 6920S tractors 022204

PN=1153

TCU Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply) 211 TCU ,130

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ..................................................... 12 volts at Pin E3 Positive (lead 032) ............................................................ 12 volts at Pin B1 and Pin B2 Positive, ELX (lead 992) ...................................................................... 12 volts at Pin G2 Ground (lead 050) ........................................................................... at Pin C2 and Pin C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-TCU-130

6020 to 6920S tractors 022204

PN=1154

TCU Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 TCU ,131

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the TCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X332 68-pin plug for TCU—Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 45 Lead 052 (positive, BAT) ........ 12 volts at pins 23 and 68 Lead 050 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X332 68-pin plug for TCU

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TM4726 (01NOV03)

211-TCU-131

6020 to 6920S tractors 022204

PN=1155

TCU Diagnostic Trouble Codes

TCU 304161.09 — User Interface Controller has Stopped Transmitting Data

211 TCU ,132

Diagnostic trouble code TCU 304161.09 is saved when there is a problem in transferring data between the user interface controller (UIC) and the transmission control unit. Reception of CAN messages that are

required for operation of the TCU is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BF5 –19–01NOV03–1/1

Diagnostics The following are possible causes: • UIC fuse F04/14 is blown. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – If diagnostic trouble code ECU 000898.09 is stored as well, this indicates a general problem in transferring data to/from the user interface controller. • A fault in the UIC’s monitoring circuit. – UIC diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the transmission control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305054.09, UIC 305190.09 and/or SIC 334003.09). • A general problem with the 29-bit CAN BUS (diagnostic trouble codes TCU 304160.09 and TCU 304166.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective user interface controller (UIC). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-132

6020 to 6920S tractors 022204

PN=1156

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

UIC diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and TCU no priority diagnostic ,133 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check fuse F04/14.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-TCU-133

6020 to 6920S tractors 022204

PN=1157

TCU Diagnostic Trouble Codes 2 Checking the UIC plug (29-bit CAN BUS connection and power supply) 211 TCU ,134

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-TCU-134

6020 to 6920S tractors 022204

PN=1158

TCU Diagnostic Trouble Codes 3 Checking the TCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X332 68-pin plug for TCU—Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 45 Lead 052 (positive, BAT) ........ 12 volts at pins 23 and 68 Lead 050 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X332 68-pin plug for TCU

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TCU 304166.09 — Park Lock Controller has Stopped Transmitting Data

Diagnostic trouble code TCU 304166.09 is saved when there is a problem in transferring data between the park lock controller (PLC) and the transmission control unit. Reception of CAN messages that are required for

operation of the TCU is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BF6 –19–01NOV03–1/1

TM4726 (01NOV03)

211-TCU-135

6020 to 6920S tractors 022204

PN=1159

211 TCU ,135

TCU Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 TCU ,136

• PLC fuses F05/3 and F05/4 are blown. • Defective 29-bit CAN BUS connection or power supply to the park lock controller causes an intermittent problem in transferring data. • A fault in the PLC’s monitoring circuit. – PLC diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the transmission control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305054.09, UIC 305190.09 and/or SIC 334003.09). • A general problem with the 29-bit CAN BUS (diagnostic trouble codes TCU 304160.09 and TCU 304161.09 are saved as well). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective park lock controller (PLC). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-136

6020 to 6920S tractors 022204

PN=1160

TCU Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

PLC diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and TCU no priority diagnostic ,137 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check fuses F05/3 and F05/4.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-TCU-137

6020 to 6920S tractors 022204

PN=1161

TCU Diagnostic Trouble Codes 2 Checking the PLC plug (29-bit CAN BUS connection and power supply) 211 TCU ,138

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

X382 45-pin plug for PLC—Specification Power supply:—Lead 682 (positive, ELX) ...................................... 12 volts at pin 45 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 330 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X382 45-pin plug for PLC

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 330):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 330):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: • Reference 240-10-037, SE28-Electronic park lock For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TM4726 (01NOV03)

211-TCU-138

6020 to 6920S tractors 022204

PN=1162

TCU Diagnostic Trouble Codes 3 Checking the TCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X332 68-pin plug for TCU—Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 45 Lead 052 (positive, BAT) ........ 12 volts at pins 23 and 68 Lead 050 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X332 68-pin plug for TCU

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TCU 304176.00 — Dirty Transmission Oil Filter

Diagnostic trouble code TCU 304176.00 is stored if dirt is registered at the transmission oil filter. The sender for the transmission oil filter is open when transmission

oil is at a temperature in excess of 40°C (104° F). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BF7 –19–01SEP02–1/1

TM4726 (01NOV03)

211-TCU-139

6020 to 6920S tractors 022204

PN=1163

211 TCU ,139

TCU Diagnostic Trouble Codes Diagnosis

NOTE: The following are possible causes: 211 TCU ,140

• • • •

A dirty oil filter. A fault at pressure switch (S73) in the transmission oil filter’s circuit. A fault in the pressure switch’s connecting line. A defect at the filter by-pass valve (cold-weather starting): – Diagnostic trouble code TCU 304178.07 must be processed first. Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-017, AutoPowr/IVT Transmission — Description of System Pressure Control Block • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

OK: GO TO 2.

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Repair as needed and carry out an operational test.

1.2 Visual inspection of transmission/hydraulic filter circuit: ❒ Check oil filter for external damages. ❒ Fault occurred after oil service? • Does the oil have the correct viscosity? ❒ Check condition of hydraulic oil and remedy fault if necessary. • Water in oil (milky). • Filter failure (dirty). • Metal Particles (mechanical failure)

– – –1/1

TM4726 (01NOV03)

211-TCU-140

6020 to 6920S tractors 022204

PN=1164

TCU Diagnostic Trouble Codes 2 Check the transmission oil filter

2.1

OK: Display: XX1, GO TO 2.2.

• Access address TCU 05. • Do this test while the engine is off. TCU 05 –– Status, transmission oil filter switch (S73)—Specification Engine off:—Status (no pressure = switch closed) .............................................................................................................. XX1

2.2

NOT OK: Display: XX0, check circuit: GO TO: Circuit/harness test for transmission oil filter switch S73; see Section 245, Group TCU in the Technical manual.

OK: Diagnosis completed.

• Operate engine at 1800 rpm for 10 - 15 seconds with oil temperature above 40°C (104°F). • Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, transmission oil filter switch (S73)—Specification Switch closed (filter unrestricted):— Status .......................................................................................................................... XX1

Type of error indicates a loose contact: GO TO: Circuit/harness test for transmission oil filter switch S73; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO 3.

– – –1/1

3 Replacing filter

Change the transmission and hydraulic oil filter and repeat test.

OK: Diagnosis completed. NOT OK: GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-TCU-141

6020 to 6920S tractors 022204

PN=1165

211 TCU ,141

TCU Diagnostic Trouble Codes 4 Checking the oil filter circuit

Possible causes for an incorrect oil filter warning signal:

OK: Diagnosis completed.

• Defective transmission oil filter switch (S73). NOTE: The transmission oil filter sender is normally closed and should open as pressure increases. 211 TCU ,142

NOT OK: Repair as needed and repeat the test.

Specifications, transmission oil filter switch (S73)—Specification Opening pressure of switch S73 as pressure increases:—Pressure ............................. 1435––1565 kPa (14.35––15.65 bar; 208––227 psi) Closing pressure of switch S73 as pressure decreases:—Pressure ............................. 1185––1315 kPa (11.85––13.15 bar; 172––191 psi)

• Filter by-pass valve open when the filter is not blocked: NOTE: The oil filter relief valve is activated (opened) by a restricted oil filter (increased difference pressure before oil filter opens relief valve and the oil channel to the filter restriction switch) Specifications, filter by-pass valve—Specification Max. differential pressure:—Differential pressure ............................................................................ max. 360 kPa (3.6 bar; 52 psi)

– Filter relief valve sticking OPEN (pressure channel to the restriction switch is open during regular tractor operation). – Defective filter by-pass valve spring. • A restricted control oil channel in the filter by-pass valve is falsely implying an incorrect pressure differential. – – –1/1

TCU 304177.01 — Transmission Oil Pressure Too Low

Diagnostic trouble code TCU 304177.01 is stored if the TCU fails to register any transmission oil pressure (system pressure). The sender for transmission oil

pressure is open at a transmission input speed (engine speed) in excess of 512 rpm. This diagnostic trouble code sets off a “stop engine” alarm.

LX12234,0000BF8 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-142

6020 to 6920S tractors 022204

PN=1166

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: • A dirty oil filter. – Diagnostic trouble code TCU 304176.00 must be processed first. • A fault at pressure switch (S74). • A fault in the pressure switch’s connecting line. • System pressure too low: – A faulty transmission oil pump. – A fault on the intake side (primary hydraulic oil filter screen is blocked). Additional references:

211 TCU ,143

• Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-017, AutoPowr/IVT Transmission — Description of System Pressure Control Block • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • 270-20-190, Primary Hydraulic Oil Filter — Description

– – –1/1

1 Preliminary test

1.1

OK: GO TO 2.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

NOT OK: Repair as needed and repeat the test.

1.2 Visual inspection of the transmission circuit: ❒ ❒ ❒ ❒

Check Check Check Check

transmission oil level. for leaks. filter. the oil hoses and pipes for kinks and dents. – – –1/1

TM4726 (01NOV03)

211-TCU-143

6020 to 6920S tractors 022204

PN=1167

TCU Diagnostic Trouble Codes 2 Checking the transmission oil pressure and filter

2.1 - Check transmission oil pressure: • Access address TCU 05 or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. • Do this test while the engine is off and again when the engine is on (with speed set at 1800 rpm):

211 TCU ,144

TCU 05 –– Status, transmission oil pressure switch (S74)—Specification Engine off (switch is OPEN and under zero-pressure):—Status .............................................................................................. X1X Engine running (switch is CLOSED):— Status .......................................................................................................................... X0X

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission oil pressure switch S74; see Section 245, Group TCU in the Technical manual. NOT OK: GO TO 2.2.

2.2 - Check the oil filter:

OK: GO TO 3

• Operate engine at 1800 rpm for 10 - 15 seconds with oil temperature above 40°C (104°F).

NOT OK: Change filter and repeat test.

• Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, transmission oil filter switch (S73)—Specification Switch closed (filter unrestricted):— Status .......................................................................................................................... XX1

– – –1/1

3 Checking system pressure

3.1 - Check system pressure at filter by-pass valve for cold-weather starting:

OK: GO TO 5.

• Start the engine.

NOT OK: GO TO 3.2.

• Warm the transmission oil to 15 °C (59 °F). • Set engine speed to: 1800 rpm. • Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. TCU 05 –– Status, switch at filter by-pass valve (cold-weather starting)— Specification Engine running (switch is CLOSED when pressurized):—Status when oil temperature is over +30 °C, 86° F .............................................................................. 1XX 3.2 - Check system pressure: See Reference 253-15-010, AutoPowr/IVT Transmission — Checking System Pressure.

OK: Check the circuits of the transmission oil pressure sender and the sender for the filter by-pass valve (cold-weather starting). NOT OK: GO TO 4.

– – –1/1

TM4726 (01NOV03)

211-TCU-144

6020 to 6920S tractors 022204

PN=1168

TCU Diagnostic Trouble Codes 4 Isolating the problem

4.1 - Check the components that are dependent on system pressure

OK: GO TO 4.2

While observing system pressure, switch the following components on and off one after the other: rear PTO, front PTO1, differential lock and FWD. Engage and disengage the park lock.

NOT OK: Repair as needed and repeat the test. 211 TCU ,145

If pressure falls after any of these are switched on or off, there must be excessive leakage in the system affected. See the following references: • • • • •

Reference Reference Reference Reference Reference Pressure.

256-15-004, 256-15-005, 256-15-003, 256-15-002, 253-15-021,

Checking Pressure at the Rear PTO. Checking Pressure at the Front PTO. Checking Pressure at the Hydraulic Differential Lock. Checking Pressure at the Front-Wheel Drive Clutch. AutoPowr/IVT Transmission — Checking Park Lock

4.2 - Reasons for problems with system pressure: • Defective transmission oil pump drive. • Transmission oil pump or suction circuit is damaged (check the primary hydraulic oil filter screen).

NOT OK: Repair as needed and repeat the test.

1

If equipped – – –1/1

5 Checking transmission oil pressure switch (S74)

NOTE: The transmission oil pressure switch is normally open and should close as pressure increases: Specifications, transmission oil pressure switch (S74)—Specification Closing pressure of switch S74 as pressure increases:—Pressure .............................. between 1435––1565 kPa (14.35–– 15.65 bar; 208––227 psi) Opening pressure of switch S74 as pressure decreases:—Pressure ............................... between 1185––1315 kPa (11.85–– 13.15 bar; 172––191 psi)

OK: GO TO: Circuit/harness test for transmission oil pressure switch S74; see Section 245, Group TCU in the Technical manual. NOT OK: Repair as needed and repeat the test.

– – –1/1

TCU 304178.07 — Filter By-pass Valve (Cold-weather Starting) is Closed by Mistake

Diagnostic trouble code TCU 304178.07 is stored if under the following conditions a sender circuit for the filter by-pass valve (cold-weather starting) is closed: - Transmission input speed (engine speed) is over 900 rpm and transmission oil temperature in below -5 °C

(23 °F). - The engine is OFF. The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BF9 –19–01APR02–1/1

TM4726 (01NOV03)

211-TCU-145

6020 to 6920S tractors 022204

PN=1169

TCU Diagnostic Trouble Codes Diagnostics

NOTE: The following are possible causes: 211 TCU ,146

• • • •

Faulty pressure switch B87 (switch is closed all the time). A fault in the pressure switch’s connecting line. A faulty thermal element (wax cartridge) in the filter by-pass valve (cold-weather starting). Filter by-pass valve (cold-weather starting): – Spring defective. – Valve stuck closed. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-017, AutoPowr/IVT Transmission — Description of System Pressure Control Block • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-TCU-146

6020 to 6920S tractors 022204

PN=1170

TCU Diagnostic Trouble Codes 2 Checking the filter by-pass valve (cold-weather starting)

2.1 - Check with the engine OFF:

OK: GO TO 2.2

• Access address TCU 05.

NOT OK: GO TO: Circuit/harness test for switch on filter by-pass valve (cold-weather starting) (B87); see Section 245, Group TCU in the Technical manual.

• Do this test while the engine is off. TCU 05 –– Status, switch at filter by-pass valve (cold-weather starting)— Specification Engine off (switch is OPEN and under zero-pressure):—Status .............................................................................................. 0XX

2.2 - Check with the engine running: • Start the engine. • Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. • Do this test while the engine is running (with speed set at 1800 rpm): TCU 05 –– Status, switch at filter by-pass valve (cold-weather starting) (B87)— Specification Engine running (switch is OPEN):— Status when oil temperature is below +5 °C (41 °F) .................................................................................................................... 0XX Engine running (switch is CLOSED when pressurized):—Status when oil temperature is over +30 °C, 86° F .............................................................................. 1XX

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for switch on filter by-pass valve (cold-weather starting) (B87); see Section 245, Group TCU in the Technical manual. NOT OK: GO TO 3.

– – –1/1

3 Checking the circuit of the switch (B87) for the filter by-pass valve (cold-weather starting)

See: Circuit/harness test for switch on filter by-pass valve (cold-weather starting) (B87); see Section 245, Group TCU in the Technical manual.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test. – – –1/1

4 Checking the filter by-pass valve (cold-weather starting)

Reasons for problems with the filter by-pass valve (cold-weather starting) (depending on circuit):

OK: Diagnosis completed.

• A faulty thermal element in the filter by-pass valve (cold-weather starting). • Filter by-pass valve (cold-weather starting): – Spring defective. – Stuck closed.

NOT OK: Repair as needed and repeat the test.

– – –1/1

TM4726 (01NOV03)

211-TCU-147

6020 to 6920S tractors 022204

PN=1171

211 TCU ,147

TCU Diagnostic Trouble Codes

TCU 304179.07 — Filter By-pass Valve (Cold-weather Starting) is Opened by Mistake

211 TCU ,148

Diagnostic trouble code TCU 304179.07 is stored if the filter by-pass valve (cold-weather starting) is open while transmission input speed (engine speed) is in

excess of 900 rpm and transmission oil temperature is over +30 °C (86 °F). The diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000BFA –19–01APR02–1/1

Diagnostics

NOTE: The following are possible causes: • Incorrect transmission oil pressure (not sufficient to close the pressure switch): – Diagnostic trouble code TCU 304177.01 must be processed first. • Faulty pressure switch B87 (switch is open all the time). • A fault in the pressure switch’s connecting line. • A faulty thermal element (wax cartridge) in the filter by-pass valve (cold-weather starting). • Filter by-pass valve (cold-weather starting) is stuck open. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 10). • “AutoPowr/IVT Transmission, Input Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 10). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-017, AutoPowr/IVT Transmission — Description of System Pressure Control Block • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-148

6020 to 6920S tractors 022204

PN=1172

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. TCU ,149

– – –1/1

2 Checking the filter by-pass valve (cold-weather starting)

• Start the engine.

OK: • Diagnosis completed.

• Access addresses TCU 05 and TCU 21 (oil temperature shown in °C) or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. • Do this test while the engine is off and again when the engine is on (with speed set at 1800 rpm):

• Type of error indicates a loose contact: GO TO 4. NOT OK: GO TO 3.

TCU 05 –– Status, switch at filter by-pass valve (cold-weather starting) (B87)— Specification Engine off (switch is OPEN and under zero-pressure):—Status .............................................................................................. 0XX Engine running (switch is OPEN):— Status when oil temperature is below +5 °C (41 °F) .................................................................................................................... 0XX Engine running (switch is CLOSED when pressurized):—Status when oil temperature is over +30 °C, 86° F .............................................................................. 1XX

– – –1/1

3 Checking system pressure

• Access address TCU 05 or template TCU 900 - Transmission Oil Circuit for AutoPowr/IVT Transmission. • Do this test while the engine is running (with speed set at 1800 rpm): TCU 05 –– Status, transmission oil pressure switch (S74)—Specification Engine running (switch is CLOSED):— Status .......................................................................................................................... X0X

OK: GO TO 4. NOT OK: See procedure for diagnostic trouble code TCU 304177.01, Section 211, Group TCU.

– – –1/1

4 Checking the circuit of the switch (B87) for the filter by-pass valve (cold-weather starting)

See: Circuit/harness test for switch on filter by-pass valve (cold-weather starting) (B87); see Section 245, Group TCU in the Technical manual.

OK: GO TO 5. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

211-TCU-149

6020 to 6920S tractors 022204

PN=1173

TCU Diagnostic Trouble Codes 5 Checking the filter by-pass valve (cold-weather starting)

Reasons for problems with the filter by-pass valve (cold-weather starting) (depending on circuit):

NOT OK: Repair as needed and repeat the test.

• A faulty thermal element in the filter by-pass valve (cold-weather starting). • Filter by-pass valve (cold-weather starting) is stuck open.

211 TCU ,150

– – –1/1

TCU 304196.19 — Data Transmitted by Engine Control Unit is Incomplete (Engine Speed)

Diagnostic trouble code TCU 304196.19 is stored if the engine control unit (ECU) does not register any engine speed and so cannot provide the CAN BUS with any data. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the engine control unit (ECU) and triggers the alarm level: “Information”.

LX12234,0000BFB –19–01SEP01–1/1

Diagnosis Additional References: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the ECU diagnostic trouble code(s).

– – –1/1

TM4726 (01NOV03)

211-TCU-150

6020 to 6920S tractors 022204

PN=1174

TCU Diagnostic Trouble Codes

TCU 304200.19 — Data Transmitted by User Interface Controller is Incomplete (Desired Acceleration)

Diagnostic trouble code TCU 304200.19 is stored if the user interface controller (UIC) does not register any data for determining desired acceleration and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000BFC –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TCU 304202.19 — Data Transmitted by User Interface Controller is Incomplete (Clutch Torque)

Diagnostic trouble code TCU 304202.19 is stored if the user interface controller (UIC) does not register any data for determining clutch torque and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000BFD –19–01AUG01–1/1

TM4726 (01NOV03)

211-TCU-151

6020 to 6920S tractors 022204

PN=1175

211 TCU ,151

TCU Diagnostic Trouble Codes Diagnostics Additional references: 211 TCU ,152

• Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TCU 304204.19 — Data Transmitted by User Interface Controller is Incomplete (Desired Transmission Ratio)

Diagnostic trouble code TCU 304204.19 is stored if the user interface controller (UIC) does not register any data for determining desired transmission ratio and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000BFE –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-152

6020 to 6920S tractors 022204

PN=1176

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

211 TCU ,153

– – –1/1

TCU 304206.19 — Data Transmitted by User Interface Controller is Incomplete (Park Lock Condition)

Diagnostic trouble code TCU 304206.19 is stored if the user interface controller (UIC) does not register any data for determining park lock condition and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000BFF –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TM4726 (01NOV03)

211-TCU-153

6020 to 6920S tractors 022204

PN=1177

TCU Diagnostic Trouble Codes

TCU 304208.19 — Data Transmitted by User Interface Controller is Incomplete (Direction of Travel)

211 TCU ,154

Diagnostic trouble code TCU 304208.19 is stored if the user interface controller (UIC) does not register any data for determining direction of travel and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C00 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TCU 304212.19 — Data Transmitted by User Interface Controller is Incomplete (Clutch Pedal Sensor)

Diagnostic trouble code TCU 304212.19 is stored if the user interface controller (UIC) does not register the status of the clutch pedal sensor and so cannot provide the CAN BUS with any data. A transmitted replacement value generates this diagnostic trouble

code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C01 –19–01AUG01–1/1

TM4726 (01NOV03)

211-TCU-154

6020 to 6920S tractors 022204

PN=1178

TCU Diagnostic Trouble Codes Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit).

211 TCU ,155

• Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TCU 304216.19 — Data Transmitted by User Interface Controller is Incomplete (Park Lock Activation)

Diagnostic trouble code TCU 304216.19 is stored if the user interface controller (UIC) does not register any data for determining park lock activation and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C02 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-155

6020 to 6920S tractors 022204

PN=1179

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

211 TCU ,156

– – –1/1

TCU 304228.19 — Data Transmitted by Park Lock Controller is Incomplete (Transmission Output Speed)

Diagnostic trouble code TCU 304228.19 is stored if the park lock controller (PLC) cannot determine the frequency of transmission output speed and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the park lock controller (PLC) and sets off an “information” alarm.

LX12234,0000C03 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the PLC diagnostic trouble code(s).

– – –1/1

TM4726 (01NOV03)

211-TCU-156

6020 to 6920S tractors 022204

PN=1180

TCU Diagnostic Trouble Codes

TCU 304230.19 — Data Transmitted by Park Lock Controller is Incomplete (Park Lock Pressure Sender)

Diagnostic trouble code TCU 304230.19 is stored if the park lock controller (PLC) does not register the status of the park lock pressure sender and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the park lock controller (PLC) and sets off an “information” alarm.

LX12234,0000C04 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the PLC diagnostic trouble code(s).

– – –1/1

TCU 304232.19 — Data Transmitted by Park Lock Controller is Incomplete (Transmission Output Speed)

Diagnostic trouble code TCU 304232.19 is stored if the park lock controller (PLC) does not register any data for determining the speed range of the transmission output speed and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement

value generates this diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the park lock controller (PLC) and sets off an “information” alarm.

LX12234,0000C05 –19–01AUG01–1/1

TM4726 (01NOV03)

211-TCU-157

6020 to 6920S tractors 022204

PN=1181

211 TCU ,157

TCU Diagnostic Trouble Codes Diagnostics Additional references: 211 TCU ,158

• Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the PLC diagnostic trouble code(s).

– – –1/1

TCU 304234.19 — Data Transmitted by Park Lock Controller is Incomplete (State of Transmission Output Speed Sender)

Diagnostic trouble code TCU 304234.19 is stored if the park lock controller (PLC) does not register the status (monitored condition) of the transmission output speed sender and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value

generates this diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the park lock controller (PLC) and sets off an “information” alarm.

LX12234,0000C06 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-158

6020 to 6920S tractors 022204

PN=1182

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the PLC diagnostic trouble code(s).

211 TCU ,159

– – –1/1

TCU 304236.19 — Data Transmitted by Park Lock Controller is Incomplete (Park Lock Solenoid Valve Y15-2)

Diagnostic trouble code TCU 304236:19 is stored if the park lock controller (PLC) does not register the status of the park lock solenoid valve (Y15-2) and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the park lock controller (PLC) and sets off an “information” alarm.

LX12234,0000C07 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the PLC diagnostic trouble code(s).

– – –1/1

TM4726 (01NOV03)

211-TCU-159

6020 to 6920S tractors 022204

PN=1183

TCU Diagnostic Trouble Codes

TCU 304240.19 — Data Transmitted by User Interface Controller is Incomplete (Status of "Come-Home" Mode)

211 TCU ,160

Diagnostic trouble code TCU 304240.19 is stored if the user interface controller (UIC) does not register the status (actual state) of the "come-home" mode and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C08 –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TCU 304241.19 — Data Transmitted by User Interface Controller is Incomplete (Desired Acceleration during a Change of Direction)

Diagnostic trouble code TCU 304241.19 is stored if the user interface controller (UIC) does not register any data for determining desired acceleration during a change of direction and so cannot provide the requisite data to the CAN BUS either. A transmitted

replacement value generates this diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C09 –19–01AUG01–1/1

TM4726 (01NOV03)

211-TCU-160

6020 to 6920S tractors 022204

PN=1184

TCU Diagnostic Trouble Codes Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit).

211 TCU ,161

• Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TCU 304243.19 — Data Transmitted by User Interface Controller is Incomplete (Transmission Shift Monitor)

Diagnostic trouble code TCU 304243.19 is stored if the user interface controller (UIC) does not register any data for determining the shift ranges and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C0A –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-TCU-161

6020 to 6920S tractors 022204

PN=1185

TCU Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

211 TCU ,162

– – –1/1

TCU 304244.19 — Data Transmitted by User Interface Controller is Incomplete (Change of Direction of Travel)

Diagnostic trouble code TCU 304244.19 is stored if the user interface controller (UIC) does not register any data for determining a change of direction of travel and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this

diagnostic trouble code in the TCU. In its “active” state, this diagnostic trouble code also generates a diagnostic trouble code at the user interface controller (UIC) and sets off an “information” alarm.

LX12234,0000C0B –19–01AUG01–1/1

Diagnostics Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: Deal with the UIC diagnostic trouble code(s).

– – –1/1

TM4726 (01NOV03)

211-TCU-162

6020 to 6920S tractors 022204

PN=1186

Group TEC

TEC Diagnostic Trouble Codes TEC 000158.00 — TEC Power Supply (Unswitched Power) Too High

If battery voltage (unswitched power) rises above 17 volts for longer than 2 seconds, diagnostic trouble

code TEC 000158.00 is triggered. Alarm level: Stop.

211 TEC 1

LX26156,000017F –19–09JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Remove/Install the Alternator, (Section 40, Group 15 in the Repair manual) • “Replacing Fuses of 60-amp GreenStar Power Outlet Socket” • “Replacing Relay of 60-amp GreenStar Power Outlet Socket”. – – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Checking the system voltage (BCU system voltage)

Access address BCU 32:

OK: GO TO 4.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15.

OK: GO TO 4.

• Check battery, refer to "Battery Checks", Section 240, Group 15.

NOT OK: Recondition as required.

– – –1/1

TM4726 (01NOV03)

211-TEC-1

6020 to 6920S tractors 022204

PN=1187

TEC Diagnostic Trouble Codes 4 Additional checks and assessment of intermittent faults

211 TEC 2

Type of error indicates a loose contact:

OK: Diagnosis completed.

• For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TEC 000158.01 — TEC Power Supply (Unswitched Power) Too Low

If battery voltage (unswitched power) drops below 9 volts, diagnostic trouble code TEC 000158.01 is

triggered. Alarm level: Stop.

LX26156,000017E –19–09JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Remove/Install the Alternator, (Section 40, Group 15 in the Repair manual) • “Replacing Fuses of 60-amp GreenStar Power Outlet Socket” • “Replacing Relay of 60-amp GreenStar Power Outlet Socket”. – – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

1.2 Perform a visual inspection of the battery, the alternator and the drive belt.

OK: GO TO 1.3.

❒ Check for visual signs of damage. ❒ Ensure that the belt tensioner and the belt are correctly installed, check for signs of slipping. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

1.3 Check fuse F03/14

OK: GO TO 2.

Is the fuse OK?

NOT OK: Replace the fuse as needed and perform an operational test. – – –1/1

TM4726 (01NOV03)

211-TEC-2

6020 to 6920S tractors 022204

PN=1188

TEC Diagnostic Trouble Codes 2 Checking the system voltage (BCU system voltage)

Access address BCU 32:

OK: GO TO 4.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running at low idle:—Voltage .................................. between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 3.

– – –1/1

3 Checking the charging system

• Check alternator, refer to "Alternator Checks", Section 240, Group 15. • Check battery, refer to "Battery Checks", Section 240, Group 15.

OK: Check all relevant connectors of the system voltage circuit for bad, loose, widened or corroded contacts. NOT OK: Recondition as required.

– – –1/1

4 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TEC 000628.12 — TEC Controller is Connected to the Wrong Harness Connector

Diagnostic trouble code TEC 000628.12 is saved when the tractor equipment interface controller detects an

erroneous signal in the circuit of the controller identification. Alarm level: CAUTION.

LX26156,0000183 –19–28JUL03–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-TEC-3

6020 to 6920S tractors 022204

PN=1189

211 TEC 3

TEC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: No operator error, GO TO 1.2

Make sure that the diagnostic trouble code was not generated due to an operator error. 211 TEC 4

1.2

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Operator error: Diagnosis completed.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2. – – –1/1

2 Checking the circuit

• Make sure that the plug is connected to the correct harness. • Harness identification is ascertained via line 228; check that the contact is good; check for continuity.

OK: GO TO 3. NOT OK: Recondition as required.

– – –1/1

3 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TEC 000639.12 — Tractor CAN BUS Fault

Diagnostic trouble code TEC 000639.12 is saved if the data received by the TEC controller from the CAN BUS are faulty or incomplete. This indicates a problem

in the 29-bit CAN BUS. Alarm level: Information.

LX26156,000016D –19–08JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-TEC-4

6020 to 6920S tractors 022204

PN=1190

TEC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2 Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: The diagnostic trouble code is active and 211 additional diagnostic TEC trouble codes are saved 5 from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

– – –1/1

2 Check the 29-bit CAN BUS

Do the 29-bit CAN BUS - Check, (Section 213, Group 40).

OK: GO TO 3. NOT OK: Recondition as required.

– – –1/1

3 Additional checks and assessment of intermittent faults

See Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required. – – –1/1

TEC 298751.31 — Fault in the Power Supply to Components at the Implement BUS or Fault in System Voltage (ELX)

If the difference between system voltage (ELX) and the power supply to the implement BUS is greater than 6 volts, diagnostic trouble code TEC 298751.31 is

triggered. Alarm level: CAUTION.

LX26156,000017A –19–09JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing Fuses of 60-amp GreenStar Power Outlet Socket” • “Replacing Relay of 60-amp GreenStar Power Outlet Socket”.

– – –1/1

TM4726 (01NOV03)

211-TEC-5

6020 to 6920S tractors 022204

PN=1191

TEC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 TEC 6

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: GO TO 2.

1.2 Check fuse F17

NOT OK: Replace the fuse as needed and perform an operational test.

LX1025924 –UN–08OCT03

Is the fuse OK?

– – –1/1

2 Checking the power supply to the components at the implement BUS

Access address TEC006:

OK: GO TO 4.

TEC 006 –– Check the power supply to the components at the implement BUS— Specification Switch the ignition ON, first four digits!— Voltage .................................................................. between 06.50XXXX and 17.50XXXX volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-TEC-6

6020 to 6920S tractors 022204

PN=1192

TEC Diagnostic Trouble Codes 3 Preliminary test

Perform a visual inspection of implement BUS (K46) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and TEC do a Circuit/Harness Test 7 for Relay (K46; Power Supply to Components at Implement BUS), see 245-TEC.

LX1025925 –UN–08OCT03

Relays K46/K47 Relays K46 and K47

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Relay (K46; Power Supply to Components at Implement BUS), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Relay (K46; Power Supply to Components at Implement BUS) in 245-TEC. • For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-TEC-7

6020 to 6920S tractors 022204

PN=1193

TEC Diagnostic Trouble Codes

TEC 298752.31 — Fault in the Power Supply to the Components at the Implement BUS

211 TEC 8

The power supply to the components installed at the implement BUS is switched via a relay. If, with relay K46 switched on, the power supply to the components installed on the implement BUS is too low (less than 6 volts), or, with relay K46 switched off, a power supply

is detected, then diagnostic trouble code 298752.31 is triggered. This indicates damage either at the harness or at relay K46. Alarm level: Information.

LX26156,000017B –19–09JUL03–1/1

Diagnostics Additional references: • “Replacing Fuses of 60-amp GreenStar Power Outlet Socket” • “Replacing Relay of 60-amp GreenStar Power Outlet Socket”.

– – –1/1

TM4726 (01NOV03)

211-TEC-8

6020 to 6920S tractors 022204

PN=1194

TEC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Diagnostic trouble code TEC 298786.04 must be treated first. Is diagnostic trouble code TEC 298786.04 also active?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. TEC 9 OK: Deal with diagnostic trouble code TEC 298786.04 NOT OK: GO TO 1.3

OK: GO TO 2.

1.3 Check fuse F17

NOT OK: Replace the fuse as needed and perform an operational test.

LX1025924 –UN–08OCT03

Is the fuse OK?

– – –1/1

2 Checking the power supply to the components at the implement BUS

Access address TEC006:

OK: GO TO 5.

TEC 006 –– Check the power supply to the components at the implement BUS— Specification Switch the ignition ON, first four digits!— Voltage .................................................................. between 06.50XXXX and 17.50XXXX volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-TEC-9

6020 to 6920S tractors 022204

PN=1195

TEC Diagnostic Trouble Codes 3 Preliminary test

Perform a visual inspection of implement BUS (K46) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do a Circuit/Harness Test for Relay (K46; Power Supply to Components at Implement BUS), see 245-TEC.

211 TEC 10

LX1025925 –UN–08OCT03

Relays K46/K47 Relays K46 and K47

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Relay (K46; Power Supply to Components at Implement BUS), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Relay (K46; Power Supply to Components at Implement BUS) in 245-TEC. • For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-TEC-10

6020 to 6920S tractors 022204

PN=1196

TEC Diagnostic Trouble Codes

TEC 298753.31 — Fault in the Power Supply to the Implement BUS

The power supply to the implement BUS is switched via a relay. If, with relay K47 switched on, the power supply is too low (less than 6 volts), or, with the relay switched off, a power supply is detected, then

diagnostic trouble code 298753.31 is triggered. This indicates damage either at the harness or at relay K47. Alarm level: Information.

LX26156,0000179 –19–09JUL03–1/1

Diagnostics Additional references: • “Replacing Fuses of 60-amp GreenStar Power Outlet Socket” • “Replacing Relay of 60-amp GreenStar Power Outlet Socket”.

– – –1/1

TM4726 (01NOV03)

211-TEC-11

6020 to 6920S tractors 022204

PN=1197

211 TEC 11

TEC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 TEC 12 1.2 Diagnostic trouble code TEC 298786.04 must be treated first. Is diagnostic trouble code TEC 298786.04 also active?

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: Deal with diagnostic trouble code TEC 298786.04 NOT OK: GO TO 1.3

OK: GO TO 2.

1.3 Check fuse F16

NOT OK: Replace the fuse as needed and perform an operational test.

LX1025924 –UN–08OCT03

Is the fuse OK?

– – –1/1

2 Checking the power supply to the implement BUS

Access address TEC006:

OK: GO TO 5.

TEC 006 –– Checking the power supply to the implement BUS—Specification Switch the ignition ON, last four digits!— Voltage .................................................................. between XXXX06.50 and XXXX17.50 volts

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-TEC-12

6020 to 6920S tractors 022204

PN=1198

TEC Diagnostic Trouble Codes 3 Preliminary test

Perform a visual inspection of relay (K47; power supply to components at the implement BUS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or 211 contacts as required and TEC do a Circuit/Harness Test 13 for Relay (K47; Power Supply to Implement BUS), see 245-TEC.

LX1025925 –UN–08OCT03

Relays K46/K47 Relays K46 and K47

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Relay (K47; Power Supply to Implement BUS), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact: • Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Relay (K47; Power Supply to Implement BUS) in 245-TEC. • For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

OK: Diagnosis completed. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-TEC-13

6020 to 6920S tractors 022204

PN=1199

TEC Diagnostic Trouble Codes

TEC 298754.31 — Fault in the Power Supply to the Implement BUS or Fault in System Voltage (ELX)

211 TEC 14

If the difference between system voltage (ELX) and the power supply to the implement BUS is greater than 6 volts, diagnostic trouble code TEC 298754.31 is

triggered. Alarm level: CAUTION.

LX26156,0000178 –19–09JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Replacing Fuses of 60-amp GreenStar Power Outlet Socket” • “Replacing Relay of 60-amp GreenStar Power Outlet Socket”.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Check fuse F16

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

OK: GO TO 2. NOT OK: Replace the fuse as needed and perform an operational test.

LX1025924 –UN–08OCT03

Is the fuse OK?

– – –1/1

TM4726 (01NOV03)

211-TEC-14

6020 to 6920S tractors 022204

PN=1200

TEC Diagnostic Trouble Codes 2 Checking the power supply to the implement BUS

Access address TEC006:

OK: GO TO 5.

TEC 006 –– Checking the power supply to the implement BUS—Specification Switch the ignition ON, last four digits!— Voltage .................................................................. between XXXX06.50 and XXXX17.50 volts

NOT OK: GO TO 3.

– – –1/1

3 Preliminary test

Perform a visual inspection of relay (K47; power supply to components at the implement BUS) and of the connector associated with it:

OK: If there are no visible signs of damage, GO TO 4. NOT OK: Recondition the circuit, sub-assemblies or contacts as required and do a Circuit/Harness Test for Relay (K47; Power Supply to Implement BUS), see 245-TEC.

LX1025925 –UN–08OCT03

Relays K46/K47 Relays K46 and K47

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts; also check the lines.

– – –1/1

4 Checking the circuit

Do a Circuit/Harness Test for Relay (K47; Power Supply to Implement BUS), see 245-ATC.

OK: GO TO 5. NOT OK: Recondition as required.

– – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• Before doing a check of the connections, see summary of wiring layout in Circuit/Harness Test for Relay (K47; Power Supply to Implement BUS) in 245-TEC. • For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test.

211-TEC-15

6020 to 6920S tractors

– – –1/1

TM4726 (01NOV03)

022204

PN=1201

211 TEC 15

TEC Diagnostic Trouble Codes

TEC 298786.04 — TEC Controller System Voltage (Unswitched Power) is Missing

211 TEC 16

Diagnostic trouble code TEC 298786.04 is triggered if no system voltage (unswitched battery power) is

present at the controller (TEC). Alarm level: CAUTION.

LX26156,0000174 –19–09JUL03–1/1

Diagnostics

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2.

1.2 Check fuse F03_14

OK: GO TO 1.3.

Is the fuse OK?

NOT OK: Replace the fuse as needed and perform an operational test.

1.3 Perform a visual inspection of the battery and the alternator.

OK: GO TO 2.

❒ Check for visual signs of damage. ❒ Check the electrical connections for bad, loose, widened or corroded contacts.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

2 Checking the voltage at the tractor’s battery

• Address TEC 004 indicates status only (1= voltage present, 0= voltage not present). • Access address TEC004:

OK: Status = 1, voltage present: GO TO 5.

TEC 004 –– Voltage, voltage at tractor’s battery (TEC operating voltage)— Specification Switch ignition ON—Status ............................................................................. XXX1XXXX

NOT OK: GO TO 3.

– – –1/1

TM4726 (01NOV03)

211-TEC-16

6020 to 6920S tractors 022204

PN=1202

TEC Diagnostic Trouble Codes 3 Check system voltage in BCU

Access address BCU 32:

OK: GO TO 5.

BCU 32 –– Voltage, system voltage (BCU operating voltage)—Specification Ignition ON; engine OFF:—Voltage .................................... between 11.2 and 12.7 volts Engine running in low idle (over 512 rpm):—Voltage .................................................................... between 11.2 and 15.4 volts Engine running at 1500 rpm:—Voltage............................... between 12.5 and 15.4 volts

NOT OK: GO TO 4.

211 TEC 17

– – –1/1

4 Checking the charging system

Check the following components:

OK: GO TO 5.

• Check alternator, refer to "Alternator Checks"; see Technical Manual, Section 240, Group 15. • Check battery, refer to "Battery Checks"; see Technical Manual, Section 240, Group 15.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

5 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TEC 298803.04 — TEC Controller System Voltage (ELX) is Missing

This diagnostic trouble code is triggered if battery voltage (unswitched power) is more than 9 volts, no warning light is flashing and the ELX voltage is missing

for longer than 1.3 seconds. Alarm level: Information.

LX26156,0000177 –19–09JUL03–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

211-TEC-17

6020 to 6920S tractors 022204

PN=1203

TEC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO TO 1.2.

211 TEC 18 1.2 Check fuse F04_13

OK: GO TO 2.

Is the fuse OK?

NOT OK: Replace the fuses as needed and perform an operational test. – – –1/1

2 Checking the system voltage (ELX)

• Address TEC 004 indicates status only (1= voltage present, 0= voltage not present). • Access address TEC004: TEC 004 –– Check voltage, system voltage (ELX)—Specification Switch ignition ON—Status ............................................................................. XXXX1XXX

OK: Status = 1, voltage present: Diagnosis completed. NOT OK: GO TO 3. – – –1/1

3 Additional checks and assessment of intermittent faults

Type of error indicates a loose contact:

OK: Diagnosis completed.

• For back-up, see also additional references for circuit checks: – Reference 245-TEC-100, Test Procedure in the Case of Occasional TEC Circuit Problems (TEC Beep Mode). – Reference 210-15-046, Troubleshooting Unsolved Problems.

NOT OK: Recondition as required and carry out an operational test. – – –1/1

TEC 298804.31 — TEC Controller, Internal Fault (Shut-Off Process)

Once the ignition is switched off, the TEC controller starts its shut-off process. If this process takes too long, diagnostic trouble code TEC 298804.31 is

triggered. Alarm level: CAUTION.

LX26156,000017C –19–09JUL03–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-TEC-18

6020 to 6920S tractors 022204

PN=1204

TEC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active 211 (code is regenerated after TEC it has been deleted and 19 the ignition switched ON/OFF): Replace the TEC controller.

– – –1/1

TEC 298805.31 — TEC Controller, Internal Fault (EEPROM)

If a fault occurs when the internal module (EEPROM) intervenes, diagnostic trouble code TEC 298805.31 is

triggered. Alarm level: CAUTION.

LX26156,000017D –19–09JUL03–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the TEC controller.

– – –1/1

TM4726 (01NOV03)

211-TEC-19

6020 to 6920S tractors 022204

PN=1205

TEC Diagnostic Trouble Codes

211 TEC 20

TM4726 (01NOV03)

211-TEC-20

6020 to 6920S tractors 022204

PN=1206

Group UIC

UIC Diagnostic Trouble Codes UIC 305005.02 — Controller, Internal Fault

Diagnostic trouble code UIC 305005.02 is stored when the user interface controller registers an EEPROM

error. This diagnostic trouble code triggers the alarm level: “Information”.

211 UIC 1

LX12234,0000ADE –19–01AUG01–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the user interface controller (UIC) with a new one.

– – –1/1

UIC 305006.02 — Controller, Internal Fault

Diagnostic trouble code UIC 305006.02 is saved when an electronic malfunction is registered in the controller.

This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000ADF –19–01AUG01–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-UIC-1

6020 to 6920S tractors 022204

PN=1207

UIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): Replace the user interface controller (UIC) with a new one.

211 UIC 2

– – –1/1

UIC 305007.12 — Set-Up Error in BCU

Diagnostic trouble code UIC 305007.12 is saved when the basic control unit sends false/no tractor data to the user interface controller via the CAN BUS. This

diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000C68 –19–23JUL02–1/1

Diagnostics The following are possible causes: • Wrong input in the BCU. • Wrong UIC installed. • Communication problem between BCU and UIC (CAN BUS problem). – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: Diagnostic trouble code BIF 000639.02 takes priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-BCU-001, Calibration and Input Addresses (Basic Functions).

– – –1/1

TM4726 (01NOV03)

211-UIC-2

6020 to 6920S tractors 022204

PN=1208

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2. UIC 3

1.2

OK: If BIF 000639.02 is not stored, GO TO 2.

Are other diagnostic trouble codes saved that indicate a general problem in the 29-bit CAN BUS (BIF 000639.02)?

NOT OK: BIF 000639.02 - 29 BIT CAN BUS, open circuit (section 211, group BIF) takes priority.

– – –1/1

2 Check BCU input value

Access address BCU 77: BCU 77 –– Basic functions, vehicle control function—Specification Input Values:—Tractor models 6420 6920 (except 6420S and 6920S) with 40 km/h (25 mph) transmission .......................................................................................... Tractor models 6420S and 6920S with 40 km/h (25 mph) transmission .................................................................................... Tractor models 6420 - 6920 (except 6420S and 6920S) with 50 km/h (31 mph) transmission ......................................................................................................... Tractor models 6420S and 6920S with 50 km/h (31 mph) transmission ....................................................................................

OK: Wrong UIC was installed. Install correct UIC.

86 87

NOT OK: Enter parameter in BCU and delete diagnostic trouble code.

88 89 – – –1/1

UIC 305008.31 — INFORMATION FOR OPERATOR: Anti-jack-knife Control Activated

Diagnostic trouble code UIC 305008.31 is generated if the UIC has activated the anti-jack-knife control in response to a change in ratio of the front and rear axle operating speeds (front-wheel drive disengaged). This

diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000AE0 –19–01AUG01–1/1

TM4726 (01NOV03)

211-UIC-3

6020 to 6920S tractors 022204

PN=1209

UIC Diagnostic Trouble Codes

UIC 305009.04 — Defective Solenoid Valve in Anti-jack-knife Control

211 UIC 4

Diagnostic trouble code UIC 305009.04 is stored if the commanded state of UIC (anti-jack-knife control activated or not) does not correspond to the actual

state of the solenoid valve. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000AE1 –19–01NOV03–1/1

Diagnostics The following are possible causes: • • • •

An incorrect entry in address UIC32. A defective solenoid valve (Y31). Defective/bad ground connection (cable 310) via ground point XGND45 to XGND1. Defective line connections: – Ground lead (cable 310). – Positive lead between solenoid valve Y31 and UIC (cable 717). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Changing the Preload Valve” on 6420 and 6620 tractors (Repair Manual, Section 60, Group 35). • “Changing the Preload Valve” on 6820 and 6920 tractors (Repair Manual, Section 60, Group 30). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-001,Steering and Brakes, Tests and Adjustments - Summary of References. • Reference 260-20-080, Description of Air Brake System.

– – –1/1

TM4726 (01NOV03)

211-UIC-4

6020 to 6920S tractors 022204

PN=1210

UIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2. UIC 5

– – –1/1

2 Checking input address UIC032

See Address UIC032 — Input address for anti-jack-knife control, 245-UIC.

OK: GO TO 3 NOT OK: Modify setting, confirm and carry out an operational test. – – –1/1

3 Checking the operation of the anti-jack-knife control

OK: • Diagnosis completed.

For test purposes, the anti-jack-knife control may be activated as follows: 1. Via input address UIC 49 (test conditions: reverse drive lever in corner park position and engine OFF): • Input value in address UIC 049: 100000 2. Braking sharply from a speed in excess of 2.5 km/h (1.6 mph). For diagnosis with the basic informator or performance monitor:The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved.

• Type of error indicates a loose contact, GO TO: Circuit/harness test for air brake solenoid valve (Y31) (for tractors up to serial no. 398790); see Technical Manual, Section 245, Group UIC.

Access address UIC 10: UIC 10 –– Status, solenoid valve in anti-jack-knife control (Y31)—Specification Anti-jack-knife control is not active:— Status .......................................................................................................................... XX1 Anti-jack-knife control is active:—Status ..................................................................... XX0

NOT OK: GO TO: Circuit/harness test for air brake solenoid valve (Y31) (for tractors up to serial no. 398790); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305010.07 — Fault at Brake Pedal Sensor

Diagnostic trouble code UIC 305010.07 is stored if the output signal of the brake pedal potentiometer does not match the shift status of the brake pedal switch.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000AE3 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-5

6020 to 6920S tractors 022204

PN=1211

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 6

• Incorrect brake pedal setting. • A general problem with the power supply to the brake pedal sensor unit (B88): – Incorrect 5-volt power supply to the brake pedal potentiometer (deal with diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 first). – Incorrect 12-volt power supply to the brake pedal switch (fuse F03/07, cable 273). • Defective brake pedal sensor unit (B88). – Defective brake pedal switch. – Defective brake pedal potentiometer (deal with diagnostic trouble codes UIC 305044.04, UIC 305045.03; UIC 305046.04 and/or UIC 305047.03 first). • Defective line connection between the brake pedal sensor unit and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-6

6020 to 6920S tractors 022204

PN=1212

UIC Diagnostic Trouble Codes 2 Checking the brake pedal switches

• Access address UIC 12.

OK: GO TO 3.

UIC 12 –– Status, left and right brake pedal switches (B88)—Specification Neither brake pedal activated:—Status ...................................................................... 0X0 Left brake pedal activated:—Status ............................................................................ 1X0 Right brake pedal activated:—Status .......................................................................... 0X1

NOT OK: GO TO: Circuit/Harness test for brake pedal switch (B88); see Technical Manual, 211 section 245, group UIC. UIC 7

– – –1/1

3 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 3.1 – Circuit of the left brake pedal potentiometer: • Access address UIC 27. UIC 27 –– Voltage, left brake pedal potentiometer (B88)—Specification Left brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Left brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts 3.2 – Circuit of the right brake pedal potentiometer: • Access address UIC 28.

OK: GO TO 4. NOT OK: • Defective circuit, GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC. • If voltage range is too high or too low, GO TO: Adjusting the brake pedals. See: Reference 260-15-070, Adjusting the Brake Pedals and Switches.

UIC 28 –– Voltage, right brake pedal potentiometer (B88)—Specification Right brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range ............................................................................................... 0.9 -1.1 volts Right brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

– – –1/1

TM4726 (01NOV03)

211-UIC-7

6020 to 6920S tractors 022204

PN=1213

UIC Diagnostic Trouble Codes 4 Checking the point at which the brake pedal switch trips

OK: • Diagnosis completed.

4.1 Switch point, left brake pedal switch: • Access address UIC 27. • Slowly press the left brake pedal all the way down.

211 UIC 8

• At the moment when the switch can be heard to trip, voltage at the brake pedal switch should be: UIC 27 –– Voltage, left brake pedal potentiometer (B88)—Specification Point at which the brake pedal switch trips:—Voltage range ............................................................... between 1.5 and 1.7 volts 4.2 Switch point, right brake pedal switch:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC. Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

• Access address UIC 28. NOT OK: Adjusting the brake pedals. See: Reference 260-15-070, Adjusting the Brake Pedals and Switches.

• Slowly press the right brake pedal all the way down. • At the moment when the switch can be heard to trip, voltage at the brake pedal switch should be: UIC 28 –– Voltage, right brake pedal potentiometer (B88)—Specification Point at which the brake pedal switch trips:—Voltage range ............................................................... between 1.5 and 1.7 volts

– – –1/1

UIC 305011.11 — Front-Wheel Drive Speed and Transmission Output Speed Do Not Match

Diagnostic trouble code UIC 305011.11 is stored if with front-wheel drive engaged and transmission oil temperature over 10°C (50°F) the registered ratio between front-wheel drive speed and transmission

output speed is incorrect. This diagnostic trouble code deactivates the front-wheel drive and triggers the following alarm level: “CAUTION”.

LX12234,0000AE5 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-8

6020 to 6920S tractors 022204

PN=1214

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective FWD-axle speed sender (B89): – An electrical or mechanical defect. • A defect at the TCU’s transmission output speed sender B63: – TCU diagnostic trouble codes that indicate a defect at the TCU’s transmission output speed sender B63 should take priority (TCU 304049.04, TCU 304057.03, TCU 304146.11 and TCU 304151.11). • Defective transmission oil temperature sender: – If there is a defect at the transmission oil temperature sender, the transmission warm-up routine must be carried out every time the engine is restarted, even if the transmission oil is warm already (TCU diagnostic trouble codes that indicate a defect at the transmission oil temperature sender (TCU 304024.04 or TCU 304040.03) should take priority). • A defect at the front-wheel drive clutch: – Clutch is slipping due to the tractor being overloaded. – A defect at the Y03 solenoid valve of the front-wheel drive clutch (diagnostic trouble code BCU 302086.31 should take priority). – A mechanical problem at the clutch. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Front-Wheel Drive Clutch — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 56, Group 10). • “Front-Wheel Drive Clutch — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 56, Group 10). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 256-10-001, Drive Systems — Operational Check. • Reference 256-15-002, Checking Pressure at the Front-Wheel Drive Clutch. • Information on the front-wheel drive clutch: Reference 256-20-001, Drive Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-UIC-9

6020 to 6920S tractors 022204

PN=1215

211 UIC 9

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 UIC 10

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

1.2 Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the front-wheel drive speed sender

For diagnosis with the basic informator or performance monitor:The main (key) switch must be at “IGN” for at least 8 seconds before the diagnostic mode is activated. If the diagnostic mode was activated previously, the tractor cannot be moved. • Access address UIC 46.

NOTE: Doubling travel speed results in a doubling of the output value in address UIC 46.

OK: • Type of error indicates a loose contact, GO TO: Circuit/Harness test for front-wheel drive axle speed sender (B89); see Technical Manual, section 245, group UIC. • Type of error indicates a defective front-wheel drive clutch: GO TO 3.

• Do this check while the tractor is in motion with the front-wheel drive engaged: UIC 46 –– Speed, front-wheel drive axle speed sender (B89)—Specification Display should vary with travel speed:— rpm ....................................................................................................................... 0 - 8000

NOT OK: GO TO: Circuit/Harness test for front-wheel drive axle speed sender (B89); see Technical Manual, section 245, group UIC.

– – –1/1

3 Checking the front-wheel drive clutch

• Do an operational check on the front-wheel drive clutch: Reference 256-10-001, Drive Systems — Operational Check. • Reference 256-15-002, Checking Pressure at the Front-Wheel Drive Clutch. • Check the Y03 solenoid valve of the front-wheel drive clutch for a mechanical defect. • Check the disk pack. • Check the front-wheel drive clutch mechanism (belleville springs).

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

UIC 305012.00 — INFORMATION FOR OPERATOR: Engine Speed Too High

Diagnostic trouble code UIC 305012.00 is generated if the user interface controller detects an excessively high engine speed. Speed (travel speed) should be reduced. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as

information for the operator; it triggers the alarm level: “Information”. Excessive speed is indicated, when there is NO weight pushing from behind to account for it: Deal with the ECU diagnostic trouble codes.

LX12234,0000AE6 –19–01AUG01–1/1

TM4726 (01NOV03)

211-UIC-10

6020 to 6920S tractors 022204

PN=1216

UIC Diagnostic Trouble Codes

UIC 305015.11 — Park Lock Does Not Engage

Diagnostic trouble code UIC 305015.11 is stored if the park lock does not engage, even although the UIC commands “park position” and the tractor’s travel

speed is such that engagement is permitted. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 UIC 11

LX12234,0000AE7 –19–01APR02–1/1

Diagnostics The following are possible causes: • Defective park lock pressure sender B90: – Diagnostic trouble codes PLC 328016.31 and PLC 328017.31 take priority. • Fault at park lock solenoid valve Y15-1 (monitored by TCU) or Y15-2 (monitored by PLC): – TCU diagnostic trouble codes: TCU 304086.05, TCU 304102.04, TCU 304118.03 and/or TCU 304147.11 should take priority. – PLC diagnostic trouble codes: PLC 328020.31 or PLC 328021.31 should take priority. • Problem in the hydraulic circuit of the park lock control block. – Mechanically faulty park lock solenoid valves Y15-1 and/or Y15-2. – Hydraulic problem. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-11

6020 to 6920S tractors 022204

PN=1217

UIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

211 UIC 12

– – –1/1

2 Checking the park lock pressure sender

2.1 Check the basic setting (neutral position) of the park lock’s pressure sender:

OK: GO TO 2.2

• Access address PLC 12.

NOT OK: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC.

PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Park lock’s pressure sender (B90) not under pressure, with ignition ON:— Voltage (neutral range) ......................................................... between 0.3 and 0.75 volts

2.2 Checking the operation of the park lock: • Start the engine. • Access address PLC 12. • Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in position for corner park (with engine running):—Voltage (no pressure exists) ..................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral (with engine running):—Voltage (pressure exists) ...................................................................... between 2.0 and 4.8 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC. NOT OK: GO TO 3.

– – –1/1

3 Checking the park lock solenoid valve Y15-1

• Start the engine.

OK: GO TO 4.

• Access address TCU 38.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group UIC.

• Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. TCU 38 –– Status, park lock solenoid valve Y15-1—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... XX0 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. XX1

– – –1/1

TM4726 (01NOV03)

211-UIC-12

6020 to 6920S tractors 022204

PN=1218

UIC Diagnostic Trouble Codes 4 Checking the park lock solenoid valve Y15-2

• Ignition ON (engine OFF).

OK: GO TO 5.

• Access address PLC 16.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-2); see Technical Manual, Section 245, Group PLC.

PLC 16 — Status, solenoid valve Y15-2—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... 000 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. 010

– – –1/1

5 Check Transmission Oil Pressure

• Access address TCU 05.

OK: GO TO 7.

• Do this test while the engine is running (1800 rpm).

NOT OK: GO TO 6.

TCU 05 –– Status, transmission oil pressure sender (S74)—Specification When pressurized, the switch is CLOSED:—Status ....................................................................................................... X0X

– – –1/1

6 Checking system pressure

See Reference 253-15-010, AutoPowr/IVT Transmission — Checking System Pressure.

OK: Check the transmission oil pressure sender (S74) (for the functional schematic of the circuit, refer to SE26; for the position of the components, refer to W28). NOT OK: Refer to diagnostics for erroneous system pressure (diagnostic trouble code TCU 304177.01, Section 211, Group TCU).

– – –1/1

TM4726 (01NOV03)

211-UIC-13

6020 to 6920S tractors 022204

PN=1219

211 UIC 13

UIC Diagnostic Trouble Codes 7 Checking pressure at the park lock control block

• Connect pressure test kit FKM10470 to the test port for measuring system power at the park lock control block. See Reference 253-15-021, AutoPowr/IVT Transmision — Checking Park Lock Pressure. • Start the engine.

211 UIC 14

OK: Pressure exists, but voltage in address PLC 12 is not to specification: Replace the park lock’s speed sender (B90) and repeat the test.

• Access address PLC 12. NOT OK: If pressure is not to specification: GO TO 8.

• Run engine at 1800 rpm. Park lock pressure and values on the display in diagnostic address PLC 12— Specification Reverse drive lever in position for neutral:—Park lock control block, pressure .................................................................................. 2000 kPa (20 bar; 290 psi) Voltage in address PLC 12 ..................................................... between 2.0 and 4.8 volts Reverse drive lever in corner park position:—Park lock control block, pressure .............................................................................................. 0 kPa (0 bar; 0 psi) Voltage in address PLC 12 ................................................... between 0.3 and 0.75 volts

– – –1/1

8 Problem in the park lock control block

Check the control block’s components for mechanical defects. • Solenoid valve Y15-1. • Solenoid valve Y15-2. • Check-valve.

OK: Check the control block for signs of damage. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

UIC 305016.11 — UIC Detects Travel Speed even although the Park Lock is Engaged

Diagnostic trouble code UIC 305016.11 is stored if a travel speed signal is present, even although the “park position” is commanded and the UIC has received

confirmation that the park lock is engaged. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000AEA –19–01FEB04–1/1

TM4726 (01NOV03)

211-UIC-14

6020 to 6920S tractors 022204

PN=1220

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A mechanical defect at the TCU’s transmission output speed sender B63: – Diagnostic trouble codes TCU 304146.11 and/or 304151.11 take priority. • Fault at park lock solenoid valve Y15-1 (monitored by TCU) or Y15-2 (monitored by PLC): – TCU diagnostic trouble codes: TCU 304086.05, TCU 304102.04, TCU 304118.03 and/or TCU 304147.11 should take priority. – PLC diagnostic trouble codes: PLC 328020.31 or PLC 328021.31 should take priority. • Defective park lock pressure sender B90: – Diagnostic trouble codes PLC 328016.31 and PLC 328017.31 take priority. • A defect at the park lock control block. – Mechanically faulty park lock solenoid valves Y15-1 and Y15-2. – Hydraulic problem. – A defect at the park lock’s operating mechanism or pawl. Additional references:

211 UIC 15

• Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-15

6020 to 6920S tractors 022204

PN=1221

UIC Diagnostic Trouble Codes 2 Checking the park lock pressure sender

2.1 Check the basic setting (neutral position) of the park lock’s pressure sender:

OK: GO TO 2.2

• Access address PLC 12.

NOT OK: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC.

PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Park lock’s pressure sender (B90) not under pressure, with ignition ON:— Voltage (neutral range) ......................................................... between 0.3 and 0.75 volts

211 UIC 16

2.2 Checking the operation of the park lock: • Start the engine. • Access address PLC 12. • Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in position for corner park (with engine running):—Voltage (no pressure exists) ..................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral (with engine running):—Voltage (pressure exists) ...................................................................... between 2.0 and 4.8 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC. NOT OK: GO TO 3.

– – –1/1

3 Checking the park lock solenoid valve Y15-1

• Start the engine.

OK: GO TO 4.

• Access address TCU 38.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group TCU.

• Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. TCU 38 –– Status, park lock solenoid valve Y15-1—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... XX0 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. XX1

– – –1/1

4 Checking the park lock solenoid valve Y15-2

• Ignition ON (engine OFF).

OK: GO TO 5.

• Access address PLC 16.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-2); see Technical Manual, Section 245, Group PLC.

PLC 16 — Status, solenoid valve Y15-2—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... 000 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. 010

– – –1/1

TM4726 (01NOV03)

211-UIC-16

6020 to 6920S tractors 022204

PN=1222

UIC Diagnostic Trouble Codes 5 Checking transmission oil pressure

• Access address TCU 05.

OK: GO TO 7.

• Do this test while the engine is running.

NOT OK: GO TO 6.

TCU 05 –– Status, transmission oil pressure sender (S74)—Specification When pressurized, the switch is CLOSED:—Status ....................................................................................................... X0X

211 UIC 17

– – –1/1

6 Checking system pressure

See Reference 253-15-010, AutoPowr/IVT Transmission — Checking System Pressure.

OK: Check the transmission oil pressure sender (S74) (for the functional schematic of the circuit, refer to SE26; for the position of the components, refer to W28). NOT OK: Refer to diagnostics for erroneous system pressure (diagnostic trouble code TCU 304177.01, Section 211, Group TCU).

– – –1/1

7 Checking pressure at the park lock control block

• Connect pressure test kit FKM10470 to the test port for measuring system power at the park lock control block. See Reference 253-15-021, AutoPowr/IVT Transmision — Checking Park Lock Pressure. • Start the engine.

OK: Pressure exists, but voltage in address PLC 12 is not to specification: Replace the park lock’s speed sender (B90) and repeat the test.

• Access address PLC 12. NOT OK: If pressure is not to specification: GO TO 8.

• Run engine at 1800 rpm. Park lock pressure and values on the display in diagnostic address PLC 12— Specification Reverse drive lever in position for neutral:—Park lock control block, pressure .................................................................................. 2000 kPa (20 bar; 290 psi) Voltage in address PLC 12 ..................................................... between 2.0 and 4.8 volts Reverse drive lever in corner park position:—Park lock control block, pressure .............................................................................................. 0 kPa (0 bar; 0 psi) Voltage in address PLC 12 ................................................... between 0.3 and 0.75 volts

– – –1/1

TM4726 (01NOV03)

211-UIC-17

6020 to 6920S tractors 022204

PN=1223

UIC Diagnostic Trouble Codes 8 Problem in the park lock control block

Check the control block’s components for mechanical defects.

OK: Check the control block for signs of damage.

• Solenoid valves Y15-1 and Y15-2, and check-valve. • A defect at the park lock’s operating mechanism. • A defect at the park lock’s pawl.

NOT OK: Recondition as required and carry out an operational test.

211 UIC 18

– – –1/1

UIC 305021.04 — Cruise Control Potentiometer, Signal Voltage Too Low

Diagnostic trouble code 305021.04 is saved if the user interface controller measures a voltage of less than 0.5 volts at the signal input of the potentiometer. This indicates that the potentiometer’s circuit is open. This

diagnostic trouble code restricts engine speed to a maximum of 1650 rpm and triggers the alarm level: “Information”.

LX12234,0000AEB –19–01NOV03–1/1

Diagnostics The following are possible causes: • A defective cruise control potentiometer (A19). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 289). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • “Replacing the Cruise Control Potentiometer on Tractors with AutoPowr/IVT Transmission”, Repair Manual, Section 40, Group 25 (6320-6620). • “Replacing the Cruise Control Potentiometer on Tractors with AutoPowr/IVT Transmission”, Repair Manual, Section 40, Group 25 (6820-6920).

– – –1/1

TM4726 (01NOV03)

211-UIC-18

6020 to 6920S tractors 022204

PN=1224

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active and 211 no priority diagnostic UIC codes exist: GO TO 2. 19

1.2 Priority diagnostic trouble codes must be processed first.

– – –1/1

2 Checking the cruise control potentiometer (A19)

NOTE: Slowly turn the AutoPowr selector through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. • Access address UIC 25. UIC 25 –– Voltage, cruise control potentiometer (A19)—Specification Right to end-position:—Minimum voltage ............................................................ 0.5 volts Right to detent position:—Voltage range .................................................... 0.9 - 1.1 volts Left to end-position:—Maximum voltage ..................................................... 3.9 - 4.1 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cruise control potentiometer (A19); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for cruise control potentiometer (A19); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305022.03 — Cruise Control Potentiometer, Signal Voltage Too High

Diagnostic trouble code 305022.03 is saved if the user interface controller measures a voltage in excess of 4.5 volts at the signal input of the potentiometer. This indicates a short in or a problem with the ground

connection in the potentiometer’s circuit. This diagnostic trouble code restricts engine speed to a maximum of 1650 rpm and triggers the alarm level: “Information”.

LX12234,0000AEC –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-19

6020 to 6920S tractors 022204

PN=1225

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 20

• Short circuit at the signal lead between the AutoPowr selector and UIC (cable 289). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components: – Diagnostic trouble code UIC 305179.02 takes priority. • A defective cruise control potentiometer (A19). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • “Replacing the Cruise Control Potentiometer on Tractors with AutoPowr/IVT Transmission”, Repair Manual, Section 40, Group 25 (6320-6620). • “Replacing the Cruise Control Potentiometer on Tractors with AutoPowr/IVT Transmission”, Repair Manual, Section 40, Group 25 (6820-6920).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-20

6020 to 6920S tractors 022204

PN=1226

UIC Diagnostic Trouble Codes 2 Checking the cruise control potentiometer (A19)

NOTE: Slowly turn the AutoPowr selector through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. • Access address UIC 25. UIC 25 –– Voltage, cruise control potentiometer (A19)—Specification Right to end-position:—Minimum voltage ............................................................ 0.5 volts Right to detent position:—Voltage range .................................................... 0.9 - 1.1 volts Left to end-position:—Maximum voltage ..................................................... 3.9 - 4.1 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for cruise control potentiometer (A19); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for cruise control potentiometer (A19); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305027.04 — AutoPowr Selector, Signal Voltage Too Low

Diagnostic trouble code UIC 305027.04 is saved if the user interface controller measures a voltage of less than 0.5 volts at the signal input of the AutoPowr selector. This indicates that the potentiometer’s circuit

is open. This diagnostic trouble code activates engine load control, de-activates ECO mode and triggers the alarm level: “Information”.

LX12234,0000AED –19–01NOV03–1/1

Diagnostics The following are possible causes: • A defective AutoPowr selector (B83). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 265). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-21

6020 to 6920S tractors 022204

PN=1227

211 UIC 21

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 UIC 22

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

1.2 Priority diagnostic trouble codes must be processed first.

– – –1/1

2 Check the AutoPowr selector

NOTE: Slowly turn the AutoPowr selector through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. • Access address UIC 24. UIC 24 –– Voltage, AutoPowr selector (B83)—Specification Position 5:—Voltage range ......................................................................... 0.9 - 1.1 volts Position 1 (to detent position):—Voltage range ........................................................................................................... 3.9 - 4.1 volts Position 0:—Maximum voltage ............................................................................. 4.5 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for AutoPowr selector (B83); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for AutoPowr selector (B83); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305028.03 — AutoPowr Selector, Signal Voltage Too High

Diagnostic trouble code UIC 305028.03 is saved if the user interface controller measures a voltage in excess of 4.5 volts at the signal input of the AutoPowr selector. This indicates a short in or a problem with the

ground connection in the potentiometer’s circuit. This diagnostic trouble code activates engine load control, de-activates ECO mode and triggers the alarm level: “Information”.

LX12234,0000AEE –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-22

6020 to 6920S tractors 022204

PN=1228

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Short circuit at the signal lead between the AutoPowr selector and UIC (cable 265). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components: – Diagnostic trouble code UIC 305179.02 takes priority. • A defective AutoPowr selector (B83).

211 UIC 23

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

2 Check the AutoPowr selector

NOTE: Slowly turn the AutoPowr selector through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. • Access address UIC 24. UIC 24 –– Voltage, AutoPowr selector (B83)—Specification Position 5:—Voltage range ......................................................................... 0.9 - 1.1 volts Position 1 (to detent position):—Voltage range ........................................................................................................... 3.9 - 4.1 volts Position 0:—Maximum voltage ............................................................................. 4.5 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for AutoPowr selector (B83); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for AutoPowr selector (B83); see Technical Manual, Section 245, Group UIC.

– – –1/1

TM4726 (01NOV03)

211-UIC-23

6020 to 6920S tractors 022204

PN=1229

UIC Diagnostic Trouble Codes

UIC 305029.02 — Operator Presence (Seat) Switch, Faulty Signal

211 UIC 24

Diagnostic trouble code UIC 305029.02 is stored if the UIC receives an output signal from the seat switch (operator is present) without interruption for over 25.5 hours. This diagnostic trouble code triggers the alarm

level: “information” and the tractor can only be driven by selecting a direction of travel and actuating the brake or clutch.

LX12234,0000AEF –19–01APR02–1/1

Diagnostics The following are possible causes: • A defective operator presence (seat) switch (S40) • Short circuit at the signal lead between the operator presence (seat) switch and UIC (cable 907). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-24

6020 to 6920S tractors 022204

PN=1230

UIC Diagnostic Trouble Codes 2 Checking the seat switch

• Access address UIC 10.

OK: • Diagnosis completed.

UIC 10 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ................................................................................ X1X Operator not sitting on seat:—Status .......................................................................... X0X

• Type of error indicates a loose contact, GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual. NOT OK: GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual.

– – –1/1

UIC 305030.12 — Accelerator Pedal Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio

Diagnostic trouble code UIC 305030.12 is saved when the user interface controller recognizes a discrepancy between the output signals of the Hall-type

potentiometers (the voltage at channel 1 must be double the value of channel 2). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000AF0 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-25

6020 to 6920S tractors 022204

PN=1231

211 UIC 25

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 26

• A defect at the signal leads of channel 1 (cable 296) or channel 2 (cable 295). – A defective signal lead from channel 1 (cable 296) produces additional UIC diagnostic trouble codes (UIC 305032.04 or UIC 305033.03 takes priority). • A defective accelerator pedal potentiometer (B79). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Speed Control Linkage (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 30, Group 05). • “Speed Control Linkage (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 30, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-26

6020 to 6920S tractors 022204

PN=1232

UIC Diagnostic Trouble Codes 2 Checking the accelerator pedal potentiometer

NOTE: Slowly move the accelerator pedal’s potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 2.1 - Check channel 1 of the Hall-type potentiometer: Access address UIC 22: UIC 22 –– Voltage, accelerator pedal potentiometer (B79; channel 1)— Specification Accelerator pedal at minimum setting:— Voltage range .............................................................................................. 0.7 - 1.2 volts Accelerator pedal at maximum setting:— Voltage range .............................................................................................. 3.5 - 4.3 volts 2.2 - Check channel 2 of the Hall-type potentiometer:

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for accelerator pedal potentiometer (B79); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for accelerator pedal potentiometer (B79); see Technical Manual, Section 245, Group UIC.

Access address UIC 23: UIC 23 –– Voltage, accelerator pedal potentiometer (B79; channel 2)— Specification Accelerator pedal at minimum setting:— Voltage range ............................................................................................ 0.35 - 0.6 volts Accelerator pedal at maximum setting:— Voltage range .......................................................................................... 1.75 - 2.15 volts

– – –1/1

UIC 305032.04 — Accelerator Pedal Potentiometer, Voltage at Channel 1 Too Low

Diagnostic trouble code UIC 305032.04 is saved when the user interface controller measures a voltage of less than 0.5 volts at the signal input of channel 1 of the

Hall-type potentiometer. This indicates that the potentiometer’s circuit is open. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000AF1 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-27

6020 to 6920S tractors 022204

PN=1233

211 UIC 27

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 28

• A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead from channel 1 (cable 296). • A defective accelerator pedal potentiometer (B79). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Speed Control Linkage (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 30, Group 05). • “Speed Control Linkage (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 30, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-28

6020 to 6920S tractors 022204

PN=1234

UIC Diagnostic Trouble Codes 2 Checking the accelerator pedal potentiometer

NOTE: Slowly move the accelerator pedal’s potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. Check channel 1 of the Hall-type potentiometer: Access address UIC 22: UIC 22 –– Voltage, accelerator pedal potentiometer (B79; channel 1)— Specification Accelerator pedal at minimum setting:— Voltage range .............................................................................................. 0.7 - 1.2 volts Accelerator pedal at maximum setting:— Voltage range .............................................................................................. 3.5 - 4.3 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for accelerator pedal potentiometer (B79); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for accelerator pedal potentiometer (B79); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305033.03 — Accelerator Pedal Potentiometer, Voltage at Channel 1 Too High

Diagnostic trouble code 305033.03 is saved when the user interface controller measures a voltage in excess of 4.5 volts at the signal input of channel 1 of the Hall-type potentiometer. This indicates a short in or a

problem with the ground connection in the potentiometer’s circuit. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000AF2 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-29

6020 to 6920S tractors 022204

PN=1235

211 UIC 29

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 30

• Short circuit at the signal lead of channel 1 between the potentiometer and the UIC (cable 296). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components: – Diagnostic trouble code UIC 305179.02 takes priority. • A defective accelerator pedal potentiometer (B79). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Speed Control Linkage (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 30, Group 05). • “Speed Control Linkage (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 30, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-30

6020 to 6920S tractors 022204

PN=1236

UIC Diagnostic Trouble Codes 2 Checking the accelerator pedal potentiometer

NOTE: Slowly move the accelerator pedal’s potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. Check channel 1 of the Hall-type potentiometer: Access address UIC 22: UIC 22 –– Voltage, accelerator pedal potentiometer (B79; channel 1)— Specification Accelerator pedal at minimum setting:— Voltage range .............................................................................................. 0.7 - 1.2 volts Accelerator pedal at maximum setting:— Voltage range .............................................................................................. 3.5 - 4.3 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/harness test for accelerator pedal potentiometer (B79); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for accelerator pedal potentiometer (B79); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305035.12 — Hand Throttle Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio

Diagnostic trouble code UIC 305035.12 is saved when the user interface controller recognizes a discrepancy between the output signals of the Hall-type

potentiometers (the voltage at channel 1 must be double the value of channel 2). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000AF3 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-31

6020 to 6920S tractors 022204

PN=1237

211 UIC 31

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 32

• A defect at the signal leads of channel 1 (cable 287) or channel 2 (cable 286). – A defective signal lead from channel 1 (cable 287) produces additional UIC diagnostic trouble codes (UIC 305037.04 or UIC 305038.03 takes priority). • A defective hand throttle potentiometer (B78). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Speed Control Linkage (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 30, Group 05). • “Speed Control Linkage (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 30, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-32

6020 to 6920S tractors 022204

PN=1238

UIC Diagnostic Trouble Codes 2 Checking the hand throttle potentiometer

OK: • Diagnosis completed.

NOTE: Slowly move the hand throttle’s potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 2.1 - Check channel 1 of the Hall-type potentiometer: • Access address UIC 20. UIC 20 –– Voltage, hand throttle potentiometer (B78; channel 1)—Specification Hand throttle at minimum setting:— Voltage range .............................................................................................. 0.5 - 0.8 volts Hand throttle at maximum setting:— Voltage range .............................................................................................. 3.7 - 4.0 volts 2.2 - Check channel 2 of the Hall-type potentiometer:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for hand throttle potentiometer (B78); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for hand throttle potentiometer (B78); see Technical Manual, Section 245, Group UIC.

• Access address UIC 21. UIC 21 –– Voltage, hand throttle potentiometer (B78; channel 2)—Specification Hand throttle at minimum setting:— Voltage range ............................................................................................ 0.25 - 0.4 volts Hand throttle at maximum setting:— Voltage range ............................................................................................ 1.85 - 2.0 volts

– – –1/1

UIC 305037.04 — Hand Throttle Potentiometer, Voltage at Channel 1 Too Low

Diagnostic trouble code UIC 305037.04 is saved when the user interface controller measures a voltage of less than 0.5 volts at the signal input of channel 1 of the

potentiometer. This indicates that the potentiometer’s circuit is open. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000AF4 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-33

6020 to 6920S tractors 022204

PN=1239

211 UIC 33

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 34

• A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 287). • A defective hand throttle potentiometer (B78). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Speed Control Linkage (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 30, Group 05). • “Speed Control Linkage (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 30, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-34

6020 to 6920S tractors 022204

PN=1240

UIC Diagnostic Trouble Codes 2 Checking the hand throttle potentiometer

OK: • Diagnosis completed.

NOTE: Slowly move the hand throttle’s potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. Check channel 1 of the Hall-type potentiometer: • Access address UIC 20. UIC 20 –– Voltage, hand throttle potentiometer (B78; channel 1)—Specification Hand throttle at minimum setting:— Voltage range .............................................................................................. 0.5 - 0.8 volts Hand throttle at maximum setting:— Voltage range .............................................................................................. 3.7 - 4.0 volts

• Type of error indicates a loose contact, GO TO: Circuit/harness test for hand throttle potentiometer (B78); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for hand throttle potentiometer (B78); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305038.03 — Hand Throttle Potentiometer, Voltage at Channel 1 Too High

Diagnostic trouble code UIC 305038.03 is saved when the user interface controller measures a voltage in excess of 4.5 volts at the signal input of channel 1 of the potentiometer. This indicates a short in or a

problem with the ground connection in the potentiometer’s circuit. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B68 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-35

6020 to 6920S tractors 022204

PN=1241

211 UIC 35

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 36

• Short circuit at the signal lead between the potentiometer and the UIC (cable 287). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components: – Diagnostic trouble code UIC 305179.02 takes priority. • A defective hand throttle potentiometer (B78). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Speed Control Linkage (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 30, Group 05). • “Speed Control Linkage (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 30, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-36

6020 to 6920S tractors 022204

PN=1242

UIC Diagnostic Trouble Codes 2 Checking the hand throttle potentiometer

OK: • Diagnosis completed.

NOTE: Slowly move the hand throttle’s potentiometer through its full range. Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. Check channel 1 of the Hall-type potentiometer: • Access address UIC 20. UIC 20 –– Voltage, hand throttle potentiometer (B78; channel 1)—Specification Hand throttle at minimum setting:— Voltage range .............................................................................................. 0.5 - 0.8 volts Hand throttle at maximum setting:— Voltage range .............................................................................................. 3.7 - 4.0 volts

• Type of error indicates a loose contact, GO TO: Circuit/harness test for hand throttle potentiometer (B78); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for hand throttle potentiometer (B78); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305039.11 — Fault at Clutch Pedal Sensor

Diagnostic trouble code UIC 305039.11 is stored if the position of the clutch pedal switch (transmitted as a CAN message by the TCU) does not correspond to the

position of the clutch pedal (output signal of clutch pedal potentiometer B65). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B69 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-37

6020 to 6920S tractors 022204

PN=1243

211 UIC 37

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 38

• Defective clutch pedal potentiometer (B65). – Diagnostic trouble codes UIC 305141.12, UIC 305142.04 and UIC 305143.03 take priority. • A defective circuit of clutch pedal switch (S72). – Defective switch or line connection (cable 664 and/or 646). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Clutch Actuation Mechanism” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Clutch Actuation Mechanism” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-38

6020 to 6920S tractors 022204

PN=1244

UIC Diagnostic Trouble Codes 2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 2.1 – Check channel 1 of the Hall-type potentiometer: • Access address UIC 18. UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Pedal declutched:—Voltage range .............................................................. 0.7 - 1.0 volts Pedal clutched:—Voltage range .................................................................. 4.1 - 4.4 volts

OK: GO TO 3. NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

2.2 – Check channel 2 of the Hall-type potentiometer: • Access address UIC 19. UIC 19 –– Voltage, clutch pedal potentiometer (B65; channel 2)—Specification Pedal declutched:—Voltage range ............................................................ 0.35 - 0.5 volts Pedal clutched:—Voltage range ................................................................ 2.05 - 2.2 volts

– – –1/1

3 Checking the clutch pedal switch

• Access address TCU 07.

OK: GO TO 4.

• Do this check with the reverse drive lever in its position for neutral:

NOT OK: GO TO: Circuit/harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, Section 245, Group TCU.

TCU 07 –– Status, clutch pedal switch (S72)—Specification Pedal declutched:—Status .......................................................................................... XX1 Pedal clutched:—Status .............................................................................................. XX0

– – –1/1

4 Checking the point at which the clutch pedal switch trips

Access address UIC 18. Slowly press the clutch down fully. At the moment when the switch can be heard to trip, voltage at the clutch pedal switch should be: UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Point at which the clutch pedal switch trips:—Voltage range ............................................................... between 3.6 and 3.9 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: Check the clutch pedal potentiometer and the clutch pedal switch for loose, poor or slid-back contacts. NOT OK: Check the installation of the clutch pedal potentiometer and switch (see relevant passage in Repair Manual).

– – –1/1

TM4726 (01NOV03)

211-UIC-39

6020 to 6920S tractors 022204

PN=1245

211 UIC 39

UIC Diagnostic Trouble Codes

UIC 305044.04 — Left Brake Signal Potentiometer, Voltage Too Low

211 UIC 40

Diagnostic trouble code UIC 305044.04 is stored if the user interface controller measures a voltage of less than 0.9 volts at the signal input of the potentiometer

of the left brake pedal. This indicates that the potentiometer’s circuit is open. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B6A –19–01APR02–1/1

Diagnostics The following are possible causes: • Defective brake pedal sensor unit (B88). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the brake pedal’s potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 278). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-070, Adjusting the Brake Pedals and Switches.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-40

6020 to 6920S tractors 022204

PN=1246

UIC Diagnostic Trouble Codes 2 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check the potentiometer on the left brake:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for 211 brake pedal potentiometer UIC (B88); see Technical 41 Manual, Section 245, Group UIC.

• Access address UIC 27. UIC 27 –– Voltage, left brake pedal potentiometer (B88)—Specification Left brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Left brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

NOT OK: GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305045.03 — Left Brake Signal Potentiometer, Voltage Too High

Diagnostic trouble code UIC 305045.03 is saved if the user interface controller measures a voltage in excess of 4.5 volts at the signal input of the potentiometer of the left brake pedal. This indicates a short in or a

problem with the ground connection in the potentiometer’s circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B6B –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-41

6020 to 6920S tractors 022204

PN=1247

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 42

• Short circuit at the signal lead between the potentiometer and the UIC (cable 278). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components (cable 243): – Diagnostic trouble code UIC 305179.02 takes priority. • Defective brake pedal sensor unit (B88). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-070, Adjusting the Brake Pedals and Switches.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-42

6020 to 6920S tractors 022204

PN=1248

UIC Diagnostic Trouble Codes 2 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check the potentiometer on the left brake:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for 211 brake pedal potentiometer UIC (B88); see Technical 43 Manual, Section 245, Group UIC.

• Access address UIC 27. UIC 27 –– Voltage, left brake pedal potentiometer (B88)—Specification Left brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Left brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

NOT OK: GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305046.04 — Right Brake Pedal Potentiometer, Voltage Too Low

Diagnostic trouble code UIC 305046.04 is stored if the user interface controller measures a voltage of less than 0.9 volts at the signal input of the potentiometer

of the right brake pedal. This indicates that the potentiometer’s circuit is open. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B6C –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-43

6020 to 6920S tractors 022204

PN=1249

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 44

• Defective brake pedal sensor unit (B88). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the brake pedal’s potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 276). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-070, Adjusting the Brake Pedals and Switches.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-44

6020 to 6920S tractors 022204

PN=1250

UIC Diagnostic Trouble Codes 2 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check the potentiometer on the right brake:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for 211 brake pedal potentiometer UIC (B88); see Technical 45 Manual, Section 245, Group UIC.

• Access address UIC 28. UIC 28 –– Voltage, right brake pedal potentiometer (B88)—Specification Right brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Right brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

NOT OK: GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305047.03 — Right Brake Pedal Potentiometer, Voltage Too High

Diagnostic trouble code UIC 305047.03 is saved if the user interface controller measures a voltage in excess of 4.5 volts at the signal input of the potentiometer of the right brake pedal. This indicates a short in or a

problem with the ground connection in the potentiometer’s circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B6D –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-45

6020 to 6920S tractors 022204

PN=1251

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 46

• Short circuit at the signal lead between the potentiometer and the UIC (cable 276). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components (cable 243): – Diagnostic trouble code UIC 305179.02 takes priority. • Defective brake pedal sensor unit (B88). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-070, Adjusting the Brake Pedals and Switches.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-46

6020 to 6920S tractors 022204

PN=1252

UIC Diagnostic Trouble Codes 2 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check the potentiometer on the right brake:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for 211 brake pedal potentiometer UIC (B88); see Technical 47 Manual, Section 245, Group UIC.

• Access address UIC 28. UIC 28 –– Voltage, right brake pedal potentiometer (B88)—Specification Right brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Right brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

NOT OK: GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305050.12 — Speed Wheel, Output Signals do Not Match

Diagnostic trouble code UIC 305050.12 is stored if the UIC detects an incorrect combination of signals at the output channels (channels 1 and 2) of the speed

wheel. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B6E –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-47

6020 to 6920S tractors 022204

PN=1253

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 48

• A defective speed wheel. • Defective line connection between the speed wheel and the UIC. – Intermittent interruptions in the power supply (ground cable 050 and/or positive cable 672). – Defective signal leads (cable 238 or 249). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Speed Control Lever” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Speed Control Lever” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-48

6020 to 6920S tractors 022204

PN=1254

UIC Diagnostic Trouble Codes 2 Checking the speed wheel

NOTE: Four combinations of individual signals from the Hall-type switches are produced by the speed wheel and displayed in diagnostic address UIC 08. Changes in the positions of the Hall-type switches (i.e. combinations of individual signals) can be detected at the speed wheel thanks to a detent function. • Access address UIC 08. UIC 08 –– Status, speed wheel (INCREASE in speed)—Specification Dependent on position of wheel:—Status (combination 1) ............................................................................................................ Speed wheel one detent position forward:—Status (combination 2) ................................................................................ Speed wheel one detent position forward:—Status (combination 3) ................................................................................ Speed wheel one detent position forward:—Status (combination 4) ................................................................................ Speed wheel one detent position forward:—Status (combination 1) ................................................................................ UIC 08 –– Status, speed wheel (DECREASE in speed)—Specification Dependent on position of wheel:—Status (combination 1) ............................................................................................................ Speed wheel one detent position back:— Status (combination 2) ................................................................................................ Speed wheel one detent position back:— Status (combination 3) ................................................................................................ Speed wheel one detent position back:— Status (combination 4) ................................................................................................ Speed wheel one detent position back:— Status (combination 1) ................................................................................................

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Circuit/Harness test for 211 speed wheel; see UIC Technical Manual, section 49 245, group UIC.

0X0 0X1 1X1

NOT OK: GO TO: Circuit/Harness test for speed wheel; see Technical Manual, section 245, group UIC.

1X0 0X0

0X0 1X0 1X1 0X1 0X0

– – –1/1

UIC 305051.09 — Engine Control Unit has Stopped Transmitting Data (Engine Temperature)

Diagnostic trouble code UIC 305051.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the user interface controller. Reception of the CAN message regarding

engine temperature is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B6F –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-49

6020 to 6920S tractors 022204

PN=1255

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 50

• Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09 and/or UIC 305056.09). • A fault in the ECU’s monitoring circuit (faulty coolant temperature sender B56). – ECU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-50

6020 to 6920S tractors 022204

PN=1256

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and UIC no priority diagnostic 51 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check ECU fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-51

6020 to 6920S tractors 022204

PN=1257

UIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply) 211 UIC 52

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-UIC-52

6020 to 6920S tractors 022204

PN=1258

UIC Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 UIC 53

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ......................................................... 2.5 -2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-UIC-53

6020 to 6920S tractors 022204

PN=1259

UIC Diagnostic Trouble Codes

UIC 305052.09 — Engine Control Unit has Stopped Transmitting Data (Engine Load/Maximum Injection Rate)

211 UIC 54

Diagnostic trouble code UIC 305052.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the user interface controller. Reception of the CAN message regarding

maximum engine load is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B70 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-54

6020 to 6920S tractors 022204

PN=1260

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09 and/or UIC 305056.09). • A fault in the ECU’s monitoring circuit. – ECU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-55

6020 to 6920S tractors 022204

PN=1261

211 UIC 55

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 UIC 56

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check ECU fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-56

6020 to 6920S tractors 022204

PN=1262

UIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

211 UIC 57

X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-UIC-57

6020 to 6920S tractors 022204

PN=1263

UIC Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

211 UIC 58

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-UIC-58

6020 to 6920S tractors 022204

PN=1264

UIC Diagnostic Trouble Codes

UIC 305053.09 — Engine Control Unit has Stopped Transmitting Data (Engine Speed)

Diagnostic trouble code UIC 305053.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the user interface controller. Reception of the CAN message regarding

engine speed is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

211 UIC 59

LX12234,0000B71 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-59

6020 to 6920S tractors 022204

PN=1265

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 60

• Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09 and/or UIC 305056.09). • A fault in the ECU’s monitoring circuit (faulty crankshaft speed sender B72). – ECU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-60

6020 to 6920S tractors 022204

PN=1266

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and UIC no priority diagnostic 61 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check ECU fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-61

6020 to 6920S tractors 022204

PN=1267

UIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply) 211 UIC 62

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-UIC-62

6020 to 6920S tractors 022204

PN=1268

UIC Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 UIC 63

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-UIC-63

6020 to 6920S tractors 022204

PN=1269

UIC Diagnostic Trouble Codes

UIC 305054.09 — Transmission Control Unit has Stopped Transmitting Data (Transmission Oil Temperature)

211 UIC 64

Diagnostic trouble code UIC 305054.09 is saved when there is a problem in transferring data between the transmission control unit (TCU) and the user interface controller. Reception of the CAN message regarding

transmission oil temperature is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B72 –19–01NOV03–1/1

Diagnostics The following are possible causes: • Blown TCU fuse(s) F04/15 and/or F05/5. • Defective 29-bit CAN BUS connection or power supply to the transmission control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305190.09 and/or SIC 334003.09). • A fault in the TCU’s monitoring circuit (faulty transmission oil temperature sender). – TCU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective transmission control unit (TCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-64

6020 to 6920S tractors 022204

PN=1270

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

TCU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and UIC no priority diagnostic 65 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check TCU fuses F04/15 and/or F05/5.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-65

6020 to 6920S tractors 022204

PN=1271

UIC Diagnostic Trouble Codes 2 Checking the TCU plug (29-bit CAN BUS connection and power supply) 211 UIC 66

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

X332 68-pin plug for TCU—Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 45 Lead 052 (positive, BAT) ........ 12 volts at pins 23 and 68 Lead 050 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X332 68-pin plug for TCU

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TM4726 (01NOV03)

211-UIC-66

6020 to 6920S tractors 022204

PN=1272

UIC Diagnostic Trouble Codes 3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

UIC 305055.09 — Engine Control Unit has Stopped Transmitting Data (Engine Load/Current Injection Rate)

Diagnostic trouble code UIC 305055.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the user interface controller. Reception of the CAN message regarding

current engine load is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B73 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-67

6020 to 6920S tractors 022204

PN=1273

211 UIC 67

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 68

• Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09 and/or UIC 305056.09). • A fault in the ECU’s monitoring circuit. – ECU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-68

6020 to 6920S tractors 022204

PN=1274

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and UIC no priority diagnostic 69 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check ECU fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-69

6020 to 6920S tractors 022204

PN=1275

UIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply) 211 UIC 70

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-UIC-70

6020 to 6920S tractors 022204

PN=1276

UIC Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 UIC 71

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-UIC-71

6020 to 6920S tractors 022204

PN=1277

UIC Diagnostic Trouble Codes

UIC 305056.09 — Engine Control Unit has Stopped Transmitting Data (Engine Speed)

211 UIC 72

Diagnostic trouble code UIC 305056.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the user interface controller. Reception of the CAN message regarding

engine speed is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B74 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-72

6020 to 6920S tractors 022204

PN=1278

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09, UIC 305055.09 and/or UIC 305060.09). • A fault in the ECU’s monitoring circuit (faulty crankshaft speed sender B72). – ECU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-73

6020 to 6920S tractors 022204

PN=1279

211 UIC 73

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 UIC 74

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check ECU fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-74

6020 to 6920S tractors 022204

PN=1280

UIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

211 UIC 75

X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-UIC-75

6020 to 6920S tractors 022204

PN=1281

UIC Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

211 UIC 76

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-UIC-76

6020 to 6920S tractors 022204

PN=1282

UIC Diagnostic Trouble Codes

UIC 305057.01 — INFORMATION FOR OPERATOR: Transmission Warm-up Routine is Active

Diagnostic trouble code UIC 305057.01 is generated if the transmission control unit (TCU) detects that the transmission oil is too cold for the tractor to operate. The transmission is in its warm-up routine. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the

operator; it triggers the alarm level: “Information”. If the tractor goes through its warm-up routine every time the engine is restarted, even although the transmission oil is obviously warm already, this indicates that the transmission oil temperature sender is defective (deal with the TCU diagnostic trouble codes).

LX12234,0000B75 –19–01AUG01–1/1

UIC 305058.01 — INFORMATION FOR OPERATOR: Transmission Warm-up Routine Cannot be Activated, Park Lock should be Engaged

Diagnostic trouble code UIC 305058.01 is generated if the transmission control unit (TCU) detects that the transmission oil is too cold for the tractor to operate. However, the transmission’s warm-up routine cannot be activated until the reverse drive lever has been

moved to its park lock position. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B76 –19–01AUG01–1/1

UIC 305059.09 — Basic Control Unit has Stopped Transmitting Data (Status of Front-Wheel Drive)

Diagnostic trouble code UIC 305059.09 is saved when there is a problem in transferring data between the basic control unit (BCU) and the user interface controller. Reception of the CAN message regarding

the current status of the front-wheel drive is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B77 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-77

6020 to 6920S tractors 022204

PN=1283

211 UIC 77

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 78

• BCU fuse F03/01 is blown. • Defective 29-bit CAN BUS connection or power supply to the basic control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the basic control unit (SFA 324081.09 and/or SIC 334002.09). • A fault in the BCU’s monitoring circuit for front-wheel drive. – BCU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective basic control unit (BCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-78

6020 to 6920S tractors 022204

PN=1284

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and UIC no priority diagnostic 79 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check BCU fuse F03/1.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-79

6020 to 6920S tractors 022204

PN=1285

UIC Diagnostic Trouble Codes 2 Checking the BCU plug (29-bit CAN BUS connection and power supply) 211 UIC 80

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. X483/2 45-pin plug for basic control unit (BCU)— Specification Power supply:—Lead 571 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1

LX1025886 –UN–28NOV01

X483/2 45-pin plug for basic control unit (BCU) X483/1 68-pin plug for basic control unit (BCU)— Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X483/1 68-pin plug for basic control unit (BCU)

• Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm). • Reference 240-10-022, SE16F - Basic Control Unit (BCU) (Speed Sensor and Radar) (AutoPowr/IVT Transmission). – – –1/2

TM4726 (01NOV03)

211-UIC-80

6020 to 6920S tractors 022204

PN=1286

UIC Diagnostic Trouble Codes • Reference 240-10A-051, SE16F - Basic Control Unit (BCU) (Speed Sensor and Radar) (PowrQuad Plus or AutoQuad Transmissions). For component location and pin arrangement, see cab wiring harness W08.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

UIC 305060.09 — Engine Control Unit has Stopped Transmitting Data (Torque Characteristics)

Diagnostic trouble code UIC 305060.09 is saved when there is a problem in transferring data between the engine control unit (ECU) and the user interface controller. Reception of the CAN message regarding

activated torque curve is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000C6A –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-81

6020 to 6920S tractors 022204

PN=1287

211 UIC 81

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 82

• Blown ECU fuse(s) F04/1 and/or F04/2. • Defective 29-bit CAN BUS connection or power supply to the engine control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the engine control unit (UIC 305051.09, UIC 305052.09, UIC 305053.09 and/or UIC 305055.09). • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a general problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-ECU-201, Theory of Operation, Engine Control Unit (ECU Level 4 with Bosch VP44 Injection Pump). • Reference 245-ECU-203, Theory of Operation (Stage II Engines to 97/68/EC; Level 11 with AutoPowr/IVT Transmission) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-82

6020 to 6920S tractors 022204

PN=1288

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic 211 trouble code is active and UIC no priority diagnostic 83 codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check ECU fuses F04/1 and/or F04/2.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-83

6020 to 6920S tractors 022204

PN=1289

UIC Diagnostic Trouble Codes 2 Checking the ECU plug (29-bit CAN BUS connection and power supply) 211 UIC 84

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/2

TM4726 (01NOV03)

211-UIC-84

6020 to 6920S tractors 022204

PN=1290

UIC Diagnostic Trouble Codes 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 UIC 85

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15. –19– –2/2

3 Checking the UIC plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

211-UIC-85

6020 to 6920S tractors 022204

PN=1291

UIC Diagnostic Trouble Codes

UIC 305062.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Release the Clutch Pedal

211 UIC 86

Diagnostic trouble code UIC 305062.31 is generated when the "Come-Home" mode is active (connector K201 plugged into the "COME HOME" position). The operator is informed that he should release the clutch pedal to gain access to the next stage of the

come-home function. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B78 –19–01AUG01–1/1

UIC 305063.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Move Reverse Drive Lever To Neutral or Park Position

Diagnostic trouble code UIC 305063.31 is generated when the "Come-Home" mode is active (connector K201 plugged into the "COME HOME" position). The operator is informed that he should move the revere drive lever to its neutral or park position to gain access

to the next stage of the come-home function. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B79 –19–01AUG01–1/1

UIC 305064.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Depress the Clutch Pedal Fully

Diagnostic trouble code UIC 305064.31 is generated when the "Come-Home" mode is active (connector K201 plugged into the "COME HOME" position). The operator is informed that he should depress the clutch pedal fully to gain access to the next stage of the

come-home function. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B7A –19–01AUG01–1/1

UIC 305065.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Select a Direction of Travel

Diagnostic trouble code UIC 305065.31 is generated when the "Come-Home" mode is active (connector K201 plugged into the "COME HOME" position). The operator is informed that he should select a direction of travel to gain access to the next stage of the

come-home function. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B7B –19–01AUG01–1/1

TM4726 (01NOV03)

211-UIC-86

6020 to 6920S tractors 022204

PN=1292

UIC Diagnostic Trouble Codes

UIC 305066.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Press Clutch Pedal to Stop

Diagnostic trouble code UIC 305066.31 is generated when the "Come-Home" mode is active (connector K201 plugged into the "COME HOME" position). The operator is informed that he should depress the clutch

211 UIC 87

pedal if he wants to stop the tractor. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B7C –19–01AUG01–1/1

UIC 305067.31 — Tractor in "Come Home" Mode - INFORMATION FOR OPERATOR: Restart

Diagnostic trouble code UIC 305067.31 is generated when the "Come-Home" mode is active (connector K201 plugged into the "COME HOME" position). The operator is informed that he should restart the tractor if

he wants to re-activate the come-home function. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000B7D –19–01AUG01–1/1

UIC 305070.19 — Transmission Control Unit is Transmitting Incomplete Data (Transmission Output Speed)

Diagnostic trouble code UIC 305070.19 is stored if the transmission control unit (TCU) does not register any transmission output speed and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates this diagnostic trouble

code in the UIC. In its “active” state, this fault also generates a diagnostic trouble code at the transmission control unit (TCU) and triggers the alarm level: “Information”.

LX12234,0000B7E –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-87

6020 to 6920S tractors 022204

PN=1293

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC 88

• The transmission output speed sender (B63) is defective: – TCU diagnostic trouble codes take priority. • Defective transmission control unit (TCU). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 TCU diagnostic trouble code(s) that indicate(s) a defect at the transmission output speed sender (B63) should take priority.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: If no TCU diagnostic trouble codes are saved, GO TO: Reference 245-TCU-107, Circuit test for transmission output speed sender (B63). NOT OK: Deal with the TCU diagnostic trouble code(s).

– – –1/1

TM4726 (01NOV03)

211-UIC-88

6020 to 6920S tractors 022204

PN=1294

UIC Diagnostic Trouble Codes

UIC 305075.04 — Potentiometer on the left brake pedal, set-up error

Diagnostic trouble code UIC 305075.04 is stored if the voltage at the signal input of the left brake pedal potentiometer indicates that a brake pedal is incorrectly adjusted. The diagnostic trouble code will be generated if the following voltage conditions exist for more than 10 minutes: • The voltage at the signal input of the left brake pedal potentiomenter is below 0.6 volts or above 1.4 volts

with a voltage of 1.4 volts at the signal input of the right brake pedal potentiomenter. • A steady voltage of 1.3 volts (+/- 0.05 volts) is received at the input signal of the left brake pedal potentiomenter. The diagnostic trouble code triggers the alarm level: “CAUTION”.

211 UIC 89

LX12234,0000C6D –19–01SEP02–1/1

Diagnostics The following are possible causes: • Brake pedal adjusted incorrectly. • Defective brake pedal sensor unit (B88). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-070, Adjusting the Brake Pedals and Switches.

– – –1/1

TM4726 (01NOV03)

211-UIC-89

6020 to 6920S tractors 022204

PN=1295

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 UIC 90

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

1.2 Priority diagnostic trouble codes must be processed first.

– – –1/1

2 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check the potentiometer on the left brake:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

• Access address UIC 27. UIC 27 –– Voltage, left brake pedal potentiometer (B88)—Specification Left brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Left brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

NOT OK: • If voltage range is too high or too low, GO TO: Reference 260-15-070, Adjusting the Brake Pedals and Switches. • Defective circuit, GO TO: Circuit/harness test for brake pedal potentiometers (B88) in Section 245, Group UIC. – – –1/1

UIC 305076.04 — Right Brake Pedal Potentiometer, Adjustment Error

Diagnostic trouble code UIC 305076.04 is stored if the voltage at the signal input of the right brake pedal potentiometer indicates that a brake pedal is incorrectly adjusted. The diagnostic trouble code will be generated if the following voltage conditions exist for more than 10 minutes: • The voltage at the signal input of the right brake pedal potentiomenter is below 0.6 volts or above 1.4

volts with a voltage of 1.4 volts at the signal input of the left brake pedal potentiomenter. • A steady voltage of 1.3 volts (+/- 0.05 volts) is received at the input signal of the right brake pedal potentiomenter. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000C6C –19–01SEP02–1/1

TM4726 (01NOV03)

211-UIC-90

6020 to 6920S tractors 022204

PN=1296

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Brake pedal adjusted incorrectly. • Defective brake pedal sensor unit (B88). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. Additional references:

211 UIC 91

• Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 260-15-070, Adjusting the Brake Pedals and Switches.

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-91

6020 to 6920S tractors 022204

PN=1297

UIC Diagnostic Trouble Codes 2 Checking the brake pedal potentiometer

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check the potentiometer on the right brake:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for brake pedal potentiometer (B88); see Technical Manual, Section 245, Group UIC.

• Access address UIC 28.

211 UIC 92

UIC 28 –– Voltage, right brake pedal potentiometer (B88)—Specification Right brake pedal not activated:— Minimum voltage .................................................................................................. 0.9 volts Voltage range .............................................................................................. 0.9 - 1.1 volts Right brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts

NOT OK: • If voltage range is too high or too low, GO TO: Reference 260-15-070, Adjusting the Brake Pedals and Switches. • Defective circuit, GO TO: Circuit/harness test for brake pedal potentiometers (B88) in Section 245, Group UIC. – – –1/1

UIC 305129.12 — Potentiometer of Speed Control Lever, Voltages at Channel 1 and Channel 2 not in the Correct Ratio

Diagnostic trouble code UIC 305129.12 is saved when the user interface controller recognizes a discrepancy between the output signals of the potentiometer (the

voltage at channel 1 must be double the value of channel 2). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B7F –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-92

6020 to 6920S tractors 022204

PN=1298

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective speed control lever potentiometer (B67). • A defect at the signal leads of channel 1 (cable 247) or channel 2 (cable 248) . – A defective channel 1 (cable 247) produces additional UIC diagnostic trouble codes (UIC 305131.04 or UIC 305132.03 takes priority). Additional references:

211 UIC 93

• Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Speed Control Lever” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Speed Control Lever” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-93

6020 to 6920S tractors 022204

PN=1299

UIC Diagnostic Trouble Codes 2 Checking the speed control lever’s potentiometer

OK: • Diagnosis completed.

NOTE: Slowly move the potentiometer through its full range (set speeds 1 and 2). Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 2.1 - Check channel 1 of the Hall-type potentiometer:

211 UIC 94

• Access address UIC 16. UIC 16 –– Voltage, speed control lever’s potentiometer (B67; channel 1)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.5 - 0.95 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage .................................................................................... 2.25 - 2.75 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ............................................................. 4.0 - 4.5 volts

• Type of error indicates a loose contact, GO TO: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC.

2.2 - Check channel 2 of the Hall-type potentiometer: • Access address UIC 17. UIC 17 –– Voltage, speed control lever’s potentiometer (B67; channel 2)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.25 - 0.5 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage ........................................................................................ 1.1 - 1.4 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ........................................................... 2.0 - 2.25 volts

– – –1/1

UIC 305131.04 — Speed Control Lever’s Potentiometer, Voltage at Channel 1 Too Low

Diagnostic trouble code UIC 305131.04 is saved when the user interface controller measures a voltage of less than 0.5 volts at the signal input of channel 1 of the

potentiometer. This indicates that the potentiometer’s circuit is open. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B80 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-94

6020 to 6920S tractors 022204

PN=1300

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Defective speed control lever potentiometer (B67). • A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 247). Additional references:

211 UIC 95

• Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Speed Control Lever” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Speed Control Lever” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-95

6020 to 6920S tractors 022204

PN=1301

UIC Diagnostic Trouble Codes 2 Checking the speed control lever’s potentiometer

NOTE: Slowly move the potentiometer through its full range (set speeds 1 and 2). Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. Check channel 1 of the Hall-type potentiometer:

211 UIC 96

• Access address UIC 16. UIC 16 –– Voltage, speed control lever’s potentiometer (B67; channel 1)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.5 - 0.95 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage .................................................................................... 2.25 - 2.75 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ............................................................. 4.0 - 4.5 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact, GO TO: Stromkreis/Kabelbaum-Test fu¨r Hall-Potentiometer des Geschwindigkeitshebels (B67), Technisches Handbuch, Abschnitt 245, Gruppe UIC. NOT OK: WEITER MIT: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305132.03 — Speed Control Lever’s Potentiometer, Voltage at Channel 1 Too High

Diagnostic trouble code UIC 305132.03 is saved when the user interface controller measures a voltage in excess of 4.5 volts at the signal input of channel 1 of the potentiometer. This indicates a short in or a

problem with the ground connection in the potentiometer’s circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B81 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-96

6020 to 6920S tractors 022204

PN=1302

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Short circuit at the signal lead between the potentiometer and the UIC (cable 247). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components: – Diagnostic trouble code UIC 305179.02 takes priority. • Defective speed control lever potentiometer (B67).

211 UIC 97

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Speed Control Lever” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Speed Control Lever” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-97

6020 to 6920S tractors 022204

PN=1303

UIC Diagnostic Trouble Codes 2 Checking the speed control lever’s potentiometer

OK: • Diagnosis completed.

NOTE: Slowly move the potentiometer through its full range (set speeds 1 and 2). Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. Check channel 1 of the Hall-type potentiometer:

211 UIC 98

• Access address UIC 16. UIC 16 –– Voltage, speed control lever’s potentiometer (B67; channel 1)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.5 - 0.95 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage .................................................................................... 2.25 - 2.75 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ............................................................. 4.0 - 4.5 volts

• Type of error indicates a loose contact, GO TO: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC. NOT OK: GO TO: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305135.02 — Neutral Switch and a Park Lock Switch are Actuated Simultaneously for Too Long a Period

Diagnostic trouble code UIC 305135.02 is stored if the UIC detects a problem at the reverse drive lever. The output signals of the neutral switch and of the switch for corner park or centre park are being received

simultaneously for too long a period of time. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B82 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-98

6020 to 6920S tractors 022204

PN=1304

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal leads (cables 207, 206 and/or 268) between the reverse drive lever and the UIC.

211 UIC 99

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305136.02 — Reverse Drive Lever, Faulty Signals

Diagnostic trouble code UIC 305136.02 is stored if the UIC receives an incorrect combination of signals from the reverse drive lever (neutral, park lock, direction or

move switches). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B83 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-99

6020 to 6920S tractors 022204

PN=1305

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,100

• A defective reverse drive lever (S80). • A problem at the signal leads (cables 206, 207, 209, 214, 219, 225 and/or 268) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305137.02 — Power-Zero Switch, Move Switch and either the Forward or Reverse Switch are Activated Simultaneously for Too Long a Period

Diagnostic trouble code UIC 305137.02 is stored if the UIC detects a problem at the reverse drive lever. The output signals of the power-zero switch, move switch and either the forward or reverse switch are received

simultaneously for too long a period of time. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B84 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-100

6020 to 6920S tractors 022204

PN=1306

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal leads (cables 214, 225, 209 and/or 219) between the reverse drive lever and the UIC.

211 UIC ,101

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305138.11 — Park Lock cannot be Disengaged

Diagnostic trouble code UIC 305138.11 is stored if there is a park lock engagement signal at the UIC, even although the reverse drive lever is not in "Park".

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B85 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-101

6020 to 6920S tractors 022204

PN=1307

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,102

• Diagnostic trouble code UIC 305138.11 may be stored as a follow-on fault: – caused by a transmission problem (TCU diagnostic trouble codes that indicate a problem with the transmission enable signal from relay K02/1 or problems at the transmission sub-assemblies (solenoid valve, clutch, sending units etc.) should take priority). – caused by a problem at reverse drive lever S80 (UIC diagnostic trouble codes that inidicate a problem at the reverse drive lever should take priority). • A defective park lock solenoid valve Y15-1 (monitored by TCU): – Diagnostic trouble codes TCU 304086.05, TCU 304102.04, TCU 304118.03 and TCU 304147.11 must be processed first. • A defective park lock solenoid valve Y15-2 (monitored by PLC): – Diagnostic trouble codes PLC 328020.31 and PLC 328021.31 must be processed first. • Defective park lock pressure sender B90: – Diagnostic trouble codes PLC 328016.31 and PLC 328017.31 take priority. • Problem in the hydraulic circuit of the park lock control block. – Mechanically faulty park lock solenoid valves Y15-1 and Y15-2. – Hydraulic problem. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 15). • “AutoPowr/IVT Transmission, Output Housing — Reconditioning (Summary of References)” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 15). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-102

6020 to 6920S tractors 022204

PN=1308

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: If no other priority diagnostic trouble codes are saved: GO TO 2.

Diagnostic trouble codes that have priority must be processed first.

– – –1/1

2 Checking the park lock pressure sender

2.1 Check the basic setting (neutral position) of the park lock’s pressure sender:

OK: GO TO 2.2

• Access address PLC 12.

NOT OK: GO TO: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC.

PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Park lock’s pressure sender (B90) not under pressure, with ignition ON:— Voltage (neutral range) ......................................................... between 0.3 and 0.75 volts

2.2 Checking the operation of the park lock: • Start the engine. • Access address PLC 12. • Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. PLC 12 –– voltage, park lock’s pressure sender (B90)—Specification Reverse drive lever in position for corner park (with engine running):—Voltage (no pressure exists) ..................................................................... between 0.3 and 0.75 volts Reverse drive lever in position for neutral (with engine running):—Voltage (pressure exists) ...................................................................... between 2.0 and 4.8 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: Circuit/Harness test for park lock’s pressure sender (B90); see Technical Manual, section 245, group PLC. NOT OK: GO TO 3.

– – –1/1

3 Checking the park lock solenoid valve Y15-1

• Start the engine.

OK: GO TO 4.

• Access address TCU 38.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-1); see Technical Manual, section 245, group UIC.

• Do this test with the engine running and the reverse drive lever in the positions for corner park and neutral. TCU 38 –– Status, park lock solenoid valve Y15-1—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... XX0 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. XX1

– – –1/1

TM4726 (01NOV03)

211-UIC-103

6020 to 6920S tractors 022204

PN=1309

211 UIC ,103

UIC Diagnostic Trouble Codes 4 Checking the park lock solenoid valve Y15-2

• Ignition ON (engine OFF).

OK: GO TO 5.

• Access address PLC 16.

NOT OK: GO TO: Circuit/Harness test for park lock solenoid valve (Y15-2); see Technical Manual, Section 245, Group PLC.

PLC 16 — Status, solenoid valve Y15-2—Specification Reverse drive lever in corner park position:—Status (park lock ON, solenoid valve de-activated) ...................................................................................................... 000 Reverse drive lever in position for neutral:—Status (park lock OFF, solenoid valve activated) ............................................................................................. 010

211 UIC ,104

– – –1/1

5 Checking pressure at the park lock control block

• Connect pressure test kit FKM10470 to the test port for measuring system power at the park lock control block. See Reference 253-15-021, AutoPowr/IVT Transmision — Checking Park Lock Pressure. • Start the engine.

OK: Pressure OK, but voltage in address PLC 12 is not to specification: Replace the park lock’s speed sender (B90) and repeat the test.

• Access address PLC 12. NOT OK: If pressure is not to specification: GO TO 6.

• Run engine at 1800 rpm. Park lock pressure and values on the display in diagnostic address PLC 12— Specification Reverse drive lever in position for neutral:—Park lock control block, pressure .................................................................................. 2000 kPa (20 bar; 290 psi) Voltage in address PLC 12 ..................................................... between 2.0 and 4.8 volts Reverse drive lever in corner park position:—Park lock control block, pressure .............................................................................................. 0 kPa (0 bar; 0 psi) Voltage in address PLC 12 ................................................... between 0.3 and 0.75 volts

– – –1/1

6 Problem in the park lock control block

Check the control block’s components for mechanical defects. • Solenoid valve Y15-1. • Solenoid valve Y15-2. • Check-valve.

OK: Check the control block for signs of damage. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

211-UIC-104

6020 to 6920S tractors 022204

PN=1310

UIC Diagnostic Trouble Codes

UIC 305139.02 — INFORMATION FOR OPERATOR: Direction of Travel is Preselected without there being a Valid Signal indicating Operator Presence

Diagnostic trouble code UIC 305139.02 is stored if a direction of travel has been activated, even although there is not any valid signal to indicate that the

211 UIC ,105

operator is present (operator on seat, clutch or brake pedals depressed). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B86 –19–01APR02–1/1

Diagnostics The following are possible causes: • • • •

Operator error: Operator not on seat and direction of travel is activated. A defective operator presence (seat) switch (S40) Open circuit at the signal lead between the operator presence (seat) switch and UIC (cable 907). A defective reverse drive lever (S80).

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-105

6020 to 6920S tractors 022204

PN=1311

UIC Diagnostic Trouble Codes 2 Checking the seat switch

• Access address UIC 10.

OK: GO TO 3.

UIC 10 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ................................................................................ X1X Operator not sitting on seat:—Status .......................................................................... X0X

NOT OK: GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual.

211 UIC ,106

– – –1/1

3 Checking the reverse drive lever

See Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

OK: • Diagnosis completed. • Type of error indicates a loose contact: Check the reverse drive lever and the seat switch for loose, poor or slid-back contacts. NOT OK: Recondition as required and carry out an operational test. – – –1/1

UIC 305140.02 — INFORMATION FOR OPERATOR: Power Zero is Preselected without there being a Valid Signal indicating Operator Presence

Diagnostic trouble code UIC 305140.02 is stored if power zero has been activated, even although there is not any valid signal to indicate that the operator is

present (operator on seat, clutch or brake pedals depressed). This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B87 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-106

6020 to 6920S tractors 022204

PN=1312

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • • • •

Operator error: Operator not on seat and power zero is activated. A defective operator presence (seat) switch (S40) Open circuit at the signal lead between the operator presence (seat) switch and UIC (cable 907). A defective reverse drive lever (S80).

211 UIC ,107

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-BCU-200, Theory of Operation of the Basic Control Unit (Basic Functions). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Checking the seat switch

• Access address UIC 10.

OK: GO TO 3.

UIC 10 –– Status, seat switch (S40)—Specification Operator sitting on seat:—Status ................................................................................ X1X Operator not sitting on seat:—Status .......................................................................... X0X

NOT OK: GO TO: Circuit/Harness Test for Seat Switch (S40); see Section 245, Group UIC in the Technical Manual.

– – –1/1

TM4726 (01NOV03)

211-UIC-107

6020 to 6920S tractors 022204

PN=1313

UIC Diagnostic Trouble Codes 3 Checking the reverse drive lever

OK: • Diagnosis completed.

See Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

• Type of error indicates a loose contact: Check the reverse drive lever and the seat switch for loose, poor or slid-back contacts.

211 UIC ,108

NOT OK: Recondition as required and carry out an operational test. – – –1/1

UIC 305141.12 — Clutch Pedal Potentiometer, Voltages at Channel 1 and Channel 2 not in the Correct Ratio

Diagnostic trouble code UIC 305141.12 is saved when the user interface controller recognizes a discrepancy between the output signals of the potentiometer (the

voltage at channel 1 must be double the value of channel 2). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B88 –19–01NOV03–1/1

Diagnostics The following are possible causes: • A defect at the signal leads of channel 1 (cable 254) or channel 2 (cable 217) . – A defective channel 1 (cable 254) produces additional UIC diagnostic trouble codes (UIC 305142.04 or UIC 305143.03 takes priority). • Defective clutch pedal potentiometer (B65). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Clutch Actuation Mechanism” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Clutch Actuation Mechanism” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-108

6020 to 6920S tractors 022204

PN=1314

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

OK: Diagnostic trouble code is not active: Diagnosis completed.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

NOT OK: Diagnostic trouble code is active and 211 no priority diagnostic UIC codes exist: GO TO 2. ,109

1.2 Priority diagnostic trouble codes must be processed first.

– – –1/1

2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

2.1 - Check channel 1 of the Hall-type potentiometer:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

• Access address UIC 18. UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Pedal declutched:—Voltage range .............................................................. 0.7 - 1.0 volts Pedal clutched:—Voltage range .................................................................. 4.1 - 4.4 volts 2.2 - Check channel 2 of the Hall-type potentiometer: • Access address UIC 19. UIC 19 –– Voltage, clutch pedal potentiometer (B65; channel 2)—Specification Pedal declutched:—Voltage range ............................................................ 0.35 - 0.5 volts Pedal clutched:—Voltage range ................................................................ 2.05 - 2.2 volts

NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305142.04 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too Low

Diagnostic trouble code UIC 305142.04 is saved when the user interface controller measures a voltage of less than 0.5 volts at the signal input of channel 1 of the

potentiometer. This indicates that the potentiometer’s circuit is open. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B89 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-109

6020 to 6920S tractors 022204

PN=1315

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,110

• A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead (cable 254). • Defective clutch pedal potentiometer (B65). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Clutch Actuation Mechanism” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Clutch Actuation Mechanism” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-110

6020 to 6920S tractors 022204

PN=1316

UIC Diagnostic Trouble Codes 2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check channel 1 of the Hall-type potentiometer:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

• Access address UIC 18. UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Pedal declutched:—Voltage range .............................................................. 0.7 - 1.0 volts Pedal clutched:—Voltage range .................................................................. 4.1 - 4.4 volts

NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305143.03 — Clutch Pedal Potentiometer, Voltage at Channel 1 Too High

Diagnostic trouble code UIC 305143.03 is saved when the user interface controller measures a voltage in excess of 4.5 volts at the signal input of channel 1 of the potentiometer. This indicates a short in or a

problem with the ground connection in the potentiometer’s circuit. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B8A –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-111

6020 to 6920S tractors 022204

PN=1317

211 UIC ,111

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,112

• Short circuit at the signal lead between the potentiometer and the UIC (cable 254). • A defective ground connection between the potentiometer and UIC (cable 241). • Short circuit in the power supply circuit of the 5-volt components: – Diagnostic trouble code UIC 305179.02 takes priority. • Defective clutch pedal potentiometer (B65). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Clutch Actuation Mechanism” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Clutch Actuation Mechanism” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 1.2

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 2.

Priority diagnostic trouble codes must be processed first.

– – –1/1

TM4726 (01NOV03)

211-UIC-112

6020 to 6920S tractors 022204

PN=1318

UIC Diagnostic Trouble Codes 2 Checking the clutch pedal potentiometer

NOTE: Slowly press the clutch down fully. An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer.

OK: • Diagnosis completed.

Check channel 1 of the Hall-type potentiometer:

• Type of error indicates a loose contact, GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

• Access address UIC 18. UIC 18 –– Voltage, clutch pedal potentiometer (B65; channel 1)—Specification Pedal declutched:—Voltage range .............................................................. 0.7 - 1.0 volts Pedal clutched:—Voltage range .................................................................. 4.1 - 4.4 volts

NOT OK: GO TO: Circuit/harness test for clutch pedal potentiometer (B65); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305144.02 — Switches on Reverse Drive Lever are Actuated Simultaneously

Diagnostic trouble code UIC 305144.02 is stored if the UIC receives an incorrect combination of signals from the reverse drive lever (neutral, park lock, direction,

power zero or move switches). The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B8B –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-113

6020 to 6920S tractors 022204

PN=1319

211 UIC ,113

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,114

• A defective reverse drive lever (S80). • A problem at the signal leads (cables 206, 207, 209, 214, 219, 225 and/or 268) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305145.02 — No Switch Signal from Reverse Drive Lever

Diagnostic trouble code UIC 305145.02 is stored if the UIC is not receiving any switch signal (status) from the

reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B8C –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-114

6020 to 6920S tractors 022204

PN=1320

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A general problem in the 12-volt power supply circuit. – Fuse F04/14 is blown (cable 672). – Defective/bad ground connection (cable 050) to XGND4. • A defective reverse drive lever (S80). • Defective line connection between the reverse drive lever and the UIC. – Defective signal lead (cables 206, 207, 209, 214, 219, 225 and/or 268). Additional references:

211 UIC ,115

• Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305146.02 — Move Switch or Power Zero Switch has been Opened by Mistake

Diagnostic trouble code UIC 305146.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal from the move switch or power-zero

switch is no longer being received. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B8D –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-115

6020 to 6920S tractors 022204

PN=1321

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,116

• A defective reverse drive lever (S80). • A problem at the signal leads (cables 225 and/or 214) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305147.02 — Forward and Reverse Switches Actuated At Same Time

Diagnostic trouble code UIC 305147.02 is stored if the UIC detects a problem at the reverse drive lever. The output signals from the forward and reverse switches

are being received simultaneously. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B8F –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-116

6020 to 6920S tractors 022204

PN=1322

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal leads (cables 209 and/or 219) between the reverse drive lever and the UIC.

211 UIC ,117

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305148.02 — Forward Switch or Reverse Switch has been Opened by Mistake

Diagnostic trouble code UIC 305148.02 is stored if the UIC detects a problem at the reverse drive lever. The output signals from the forward or reverse switches are

no longer being received. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B8E –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-117

6020 to 6920S tractors 022204

PN=1323

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,118

• A defective reverse drive lever (S80). • A problem at the signal leads (cables 209 and/or 219) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305149.02 — Fault at Neutral Switch or Power Zero Switch

Diagnostic trouble code UIC 305149.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal received from the neutral switch or

power-zero switch does not correspond to the position of the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B90 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-118

6020 to 6920S tractors 022204

PN=1324

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal leads (cables 207 and/or 214) between the reverse drive lever and the UIC.

211 UIC ,119

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305150.02 — Fault at Park Lock Switch

Diagnostic trouble code UIC 305150.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal received from the park lock switch does

not correspond to the position of the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B91 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-119

6020 to 6920S tractors 022204

PN=1325

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,120

• A defective reverse drive lever (S80). • A problem at the signal leads (cables 206 and/or 268) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305151.02 — Fault at Neutral Switch

Diagnostic trouble code UIC 305151.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal received from the neutral switch does not

correspond to the position of the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B93 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-120

6020 to 6920S tractors 022204

PN=1326

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal lead (cable 207) between the reverse drive lever and the UIC.

211 UIC ,121

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305152.02 — Fault at Move Switch

Diagnostic trouble code UIC 305152.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal received from the move switch does not

correspond to the position of the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B94 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-121

6020 to 6920S tractors 022204

PN=1327

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,122

• A defective reverse drive lever (S80). • A problem at the signal lead (cable 225) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305153.02 — Fault at Reverse Switch

Diagnostic trouble code UIC 305153.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal received from the reverse switch does

not correspond to the position of the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B95 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-122

6020 to 6920S tractors 022204

PN=1328

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal lead (cable 219) between the reverse drive lever and the UIC.

211 UIC ,123

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305154.02 — Fault at Forward Switch

Diagnostic trouble code UIC 305154.02 is stored if the UIC detects a problem at the reverse drive lever. The output signal received from the forward switch does

not correspond to the position of the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B96 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-123

6020 to 6920S tractors 022204

PN=1329

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,124

• A defective reverse drive lever (S80). • A problem at the signal lead (cable 209) between the reverse drive lever and the UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305155.02 — Forward or Reverse Switch is Actuated Simultaneously with the Park Lock Switch

Diagnostic trouble code UIC 305155.02 is stored if the UIC detects a problem at the reverse drive lever. An output signal from the forward switch or reverse switch

is being received simultaneously with the signal from the park lock switch. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B97 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-124

6020 to 6920S tractors 022204

PN=1330

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • A defective reverse drive lever (S80). • A problem at the signal leads (cables 209, 219, 206 and/or 268) between the reverse drive lever and the UIC.

211 UIC ,125

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active, GO TO: Reference 245-UIC-101, Circuit test for reverse drive lever (S80).

– – –1/1

UIC 305157.02 — Fault in Set Speed Range 2

Diagnostic trouble code UIC 305157.02 is stored if the UIC detects a problem at the speed control lever: • The switch signal for set speed range 2 is not being received, even although the speed control lever is in the top speed range.

• The switch signal for set speed range 1 is being received, even although the speed control lever is in the top speed range. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B98 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-125

6020 to 6920S tractors 022204

PN=1331

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,126

• Defective speed control lever potentiometer (B67). • Defective switchboard (S108). • A problem at the signal leads between speed control lever/switchboard (S108) and the UIC (cable 964). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Speed Control Lever” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Speed Control Lever” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check the Hall-type switch for set speeds

• Access address UIC 07:

OK: GO TO 3.

UIC 07 –– Status, Hall-type switch for set speeds 1 and 2—Specification Speed control lever in set speed 1:— Status .......................................................................................................................... 1X0 Speed control lever in set speed 2:— Status .......................................................................................................................... 0X1

NOT OK: GO TO: Circuit/Harness test for Hall-type switch for speed control lever (S108); see Technical Manual, section 245, group UIC.

– – –1/1

TM4726 (01NOV03)

211-UIC-126

6020 to 6920S tractors 022204

PN=1332

UIC Diagnostic Trouble Codes 3 Checking the speed control lever’s potentiometer

OK: • Diagnosis completed.

NOTE: Slowly move the potentiometer through its full range (set speeds 1 and 2). Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 3.1 - Check channel 1 of the Hall-type potentiometer: • Access address UIC 16. UIC 16 –– Voltage, speed control lever’s potentiometer (B67; channel 1)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.5 - 0.95 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage .................................................................................... 2.25 - 2.75 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ............................................................. 4.0 - 4.5 volts 3.2 - Check channel 2 of the Hall-type potentiometer: • Access address UIC 17. UIC 17 –– Voltage, speed control lever’s potentiometer (B67; channel 2)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.25 - 0.5 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage ........................................................................................ 1.1 - 1.4 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ........................................................... 2.0 - 2.25 volts

• Type of error indicates a loose contact: Check the Hall-type 211 potentiometer and/or the UIC Hall-type switch for loose, ,127 poor or slid-back contacts (see: Circuit/Harness test for Hall-type potentiometer for speed control lever (B67) and/or Circuit/Harness test for Hall-type switch for speed control lever (S108); see Technical Manual, section 245, group UIC). NOT OK: GO TO: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305158.02 — Fault in Set Speed Range 1

Diagnostic trouble code UIC 305158.02 is stored if the UIC detects a problem at the speed control lever: • The switch signal for set speed range 1 is not being received, even although the speed control lever is in the bottom speed range.

• The switch signal for set speed range 2 is being received, even although the speed control lever is in the bottom speed range. The diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B99 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-127

6020 to 6920S tractors 022204

PN=1333

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,128

• • • •

Defective speed control lever potentiometer (B67). Defective switchboard (S108). A problem at the signal leads between speed control lever/switchboard (S108) and the UIC (cable 964). A general problem with the power supply to the 5-volt components: – Diagnostic trouble codes UIC 305179.02 and/or UIC 305180.04 take priority. • Defective line connection between the potentiometer and the UIC. – Power supply interrupted (ground cable 241 and/or positive cable 243). – Defective signal lead. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Speed Control Lever” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Speed Control Lever” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

2 Check the Hall-type switch for set speeds

• Access address UIC 07:

OK: GO TO 3.

UIC 07 –– Status, Hall-type switch for set speeds 1 and 2—Specification Speed control lever in set speed 1:— Status .......................................................................................................................... 1X0 Speed control lever in set speed 2:— Status .......................................................................................................................... 0X1

NOT OK: GO TO: Circuit/Harness test for Hall-type switch for speed control lever (S108); see Technical Manual, section 245, group UIC.

– – –1/1

TM4726 (01NOV03)

211-UIC-128

6020 to 6920S tractors 022204

PN=1334

UIC Diagnostic Trouble Codes 3 Checking the speed control lever’s potentiometer

NOTE: Slowly move the potentiometer through its full range (set speeds 1 and 2). Do not exceed the maximum voltage or go below the minimum voltage (see below). An acoustic signal or sudden voltage change while the clutch is actuated indicates a defective potentiometer. 3.1 - Check channel 1 of the Hall-type potentiometer: • Access address UIC 16. UIC 16 –– Voltage, speed control lever’s potentiometer (B67; channel 1)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.5 - 0.95 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage .................................................................................... 2.25 - 2.75 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ............................................................. 4.0 - 4.5 volts 3.2 - Check channel 2 of the Hall-type potentiometer: • Access address UIC 17. UIC 17 –– Voltage, speed control lever’s potentiometer (B67; channel 2)— Specification Speed control lever at minimum position in set speed 1:—Minimum voltage ............................................................ 0.25 - 0.5 volts Speed control lever in mid-range: (maximum position of set speed 1/minimum position of set speed 2)— Mid-range voltage ........................................................................................ 1.1 - 1.4 volts Speed control lever at maximum position in set speed 2:—Maximum voltage ........................................................... 2.0 - 2.25 volts

OK: • Diagnosis completed. • Type of error indicates a loose contact: Check the Hall-type 211 potentiometer and/or the UIC Hall-type switch for loose, ,129 poor or slid-back contacts (see: Circuit/Harness test for Hall-type potentiometer for speed control lever (B67) and/or Circuit/Harness test for Hall-type switch for speed control lever (S108); see Technical Manual, section 245, group UIC). NOT OK: GO TO: Circuit/harness test for Hall-type potentiometer for speed control lever (B67); see Technical Manual, Section 245, Group UIC.

– – –1/1

UIC 305160.02 — Faulty Power Supply to Reverse Drive Lever

Diagnostic trouble code UIC 305160.02 is stored if the UIC detects a problem at the 12-volt power supply to

the reverse drive lever. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000B9A –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-129

6020 to 6920S tractors 022204

PN=1335

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,130

• A general problem in the 12-volt power supply circuit of the reverse drive lever. – Fuse F04/14 is blown (cable 672). – Defective/bad ground connection to XGND4 (cable 050). • Power supply interrupted (ground cable 050 and/or positive cable 672). • A defective reverse drive lever (S80). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • “Reconditioning the Reverser Control” on 6420 and 6620 tractors (Repair Manual, Section 53, Group 05). • “Reconditioning the Reverser Control” on 6820 and 6920 tractors (Repair Manual, Section 53, Group 05). • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-130

6020 to 6920S tractors 022204

PN=1336

UIC Diagnostic Trouble Codes 2 Checking the power supply

2.1 Power supply for user interface controller/reverse drive lever: Access address UIC 29: UIC 29 –– Voltage, System Voltage (UIC Operating Ignition ON; engine OFF:—Voltage .................................... Engine running in low idle (over 512 rpm):—Voltage .................................................................... Engine running at 1500 rpm:—Voltage...............................

Voltage)—Specification between 11.2 and 12.7 volts between 11.2 and 15.4 volts between 12.5 and 15.4 volts

2.2 Power supply for reverse drive lever:

OK: Check the power supply circuit of the reverse drive lever, GO TO 2.2. NOT OK: A general problem with the power supply to the user interface controller: GO TO 3.

OK: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: GO TO 3.

LX1017898 –UN–10OCT97

Use multimeter JT05791A to check the power supply: Power supply for reverse drive lever at plug X323 (W09)—Specification between pin H (cable 050) and pin F (cable 672):—Voltage ............................................................................................ 12 volts

– – –1/1

3 Checking the power supply circuit for reverse drive lever/user interface controller

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-036, SE27-Transmission Shift (User Interface Controller). For component location and pin arrangement see cab wiring harness W08 and cowl harness W09.

– – –1/1

TM4726 (01NOV03)

211-UIC-131

6020 to 6920S tractors 022204

PN=1337

211 UIC ,131

UIC Diagnostic Trouble Codes

UIC 305170.19 — Transmission Control Unit and Park Lock Controller are Transmitting Incomplete Data (Transmission Output Speed)

211 UIC ,132

Diagnostic trouble code UIC 305170.19 is stored if the transmission control unit (TCU) and park lock controller (PLC) do not register any transmission output speed and so cannot provide the requisite data to the CAN BUS either. A transmitted replacement value generates

this diagnostic trouble code in the UIC. In its “active” state, this fault also generates a diagnostic trouble code at the TCU and/or PLC. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B9B –19–01APR02–1/1

Diagnostics The following are possible causes: • A faulty transmission output speed sender (B63). – Deal with the TCU diagnostic trouble codes. • A faulty transmission output speed sender (B84). – Deal with the PLC diagnostic trouble codes. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

TM4726 (01NOV03)

211-UIC-132

6020 to 6920S tractors 022204

PN=1338

UIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 1.2 UIC ,133

1.2 TCU diagnostic trouble code(s) that indicate(s) a defect at the transmission output speed sender (B63) and PLC diagnostic trouble code(s) that indicate(s) a defect at transmission output speed sender (B84) should take priority.

OK: If no TCU and PLC diagnostic trouble codes are saved, GO TO: Reference 245-TCU-107, Circuit test for transmission output speed sender (B63) and/or Reference 245-PLC-102, Circuit test for transmission output speed sender (B84). NOT OK: Deal with the TCU or PLC diagnostic trouble code(s).

– – –1/1

UIC 305179.02 — 5-Volt Power Supply is Faulty

Diagnostic trouble code UIC 305179.02 is stored if the UIC detects more than 5 incorrect output signals from the 5-volt components (Hall-type potentiometers for brake pedal, clutch pedal, speed control lever, accelerator pedal and hand throttle, plus the

potentiometers for cruise control and AutoPowr selection). This indicates a problem in the 5-volt power supply. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B9C –19–01SEP02–1/1

TM4726 (01NOV03)

211-UIC-133

6020 to 6920S tractors 022204

PN=1339

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,134

• An open circuit in the harness. • Defective power supply circuit between the UIC and the 5-volt components. – Power supply interrupted (ground cable 241 and/or positive cable 243). • Defective UIC. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-134

6020 to 6920S tractors 022204

PN=1340

UIC Diagnostic Trouble Codes 2 Checking the 5-volt power supply circuit (positive cable 243 and ground cable 241)

The following components are powered by the 5-volt power supply circuit: • Brake pedal potentiometer B88 (harness W09). • Clutch pedal potentiometer B65 (harness W13). • Speed control lever potentiometer B67 (harness W11 with shift console or W12 with Command Arm). • Accelerator pedal potentiometer B79 (harness W08). • Hand throttle potentiometer B78 (harness W11 with shift console or W12 with Command Arm). • Cruise control potentiometer A19 (harness W08). • AutoPowr selector potentiometer B83 (harness W08).

OK: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as 211 required and carry out an UIC operational test. ,135

NOTE: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked. For circuit diagram, see: • Reference 240-10-026, SE16J - BCU (Control Unit for Brakes and Handbrake) • Reference 240-10-036, SE27-Transmission Shift (User Interface Controller). For component location and pin arrangement, see: • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

UIC 305180.04 — 5-Volt Power Supply Too Low

Diagnostic trouble code UIC 305180.04 is stored if the UIC registers a voltage under 4.8 volts at the positive line of the power supply for the 5-volt components (Hall-type potentiometers for brake pedal, clutch pedal, speed control lever, accelerator pedal and hand

throttle, plus the potentiometers for cruise control and AutoPowr selection). This indicates a short to ground. This diagnostic trouble code triggers the alarm level: “Information”.

LX12234,0000B9D –19–01SEP02–1/1

TM4726 (01NOV03)

211-UIC-135

6020 to 6920S tractors 022204

PN=1341

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,136

• A fault in the 5-volt power supply circuit (ground cable 241 and/or positive cable 243) Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-136

6020 to 6920S tractors 022204

PN=1342

UIC Diagnostic Trouble Codes 2 Checking the 5-volt power supply circuit (positive cable 243 and ground cable 241)

The following components are powered by the 5-volt power supply circuit: • Brake pedal potentiometer B88 (harness W09). • Clutch pedal potentiometer B65 (harness W13). • Speed control lever potentiometer B67 (harness W11 with shift console or W12 with Command Arm). • Accelerator pedal potentiometer B79 (harness W08). • Hand throttle potentiometer B78 (harness W11 with shift console or W12 with Command Arm). • Cruise control potentiometer A19 (harness W08). • AutoPowr selector potentiometer B83 (harness W08).

OK: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as 211 required and carry out an UIC operational test. ,137

NOTE: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked. For circuit diagram, see: • Reference 240-10-026, SE16J - BCU (Control Unit for Brakes and Handbrake) • Reference 240-10-036, SE27-Transmission Shift (User Interface Controller). For component location and pin arrangement, see: • Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. • Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

– – –1/1

UIC 305184.01 — INFORMATION FOR OPERATOR: Engine Has Stopped - Reverse Drive Lever Still in Position for a Direction of Travel

Diagnostic trouble code UIC 305184.01 is generated if the engine has shut down while the ignition is still switched on and the reverse drive lever is still in the position for a direction of travel. To restart, the reverse drive lever must first be moved to the position for

neutral or corner park. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”.

LX12234,0000BA1 –19–01AUG01–1/1

UIC 305185.01 — Fault at Transmission

Diagnostic trouble code UIC 305185.01 is stored if the UIC cannot detect any tractor movement, even although all the preconditions for it are met. In its “active” state, this fault also generates a diagnostic

trouble code at the transmission control unit (TCU) or park lock controller (PLC) and sets off an “information” alarm.

LX12234,0000BA2 –19–01APR02–1/1

TM4726 (01NOV03)

211-UIC-137

6020 to 6920S tractors 022204

PN=1343

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: 211 UIC ,138

• A fault in the monitoring circuit of the transmission control unit (TCU diagnostic trouble codes take priority). • A fault in the monitoring circuit of the park lock controller (PLC diagnostic trouble codes take priority). • A defective hydrostatic unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-PLC-200, Theory of Operation (Park Lock Controller) • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

1.2 Deal with the TCU and PLC diagnostic trouble code(s).

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 1.2

OK: No additional TCU and PLC diagnostic trouble code(s) is/are stored: Check the hydrostatic unit. See procedure for diagnostic trouble code TCU 304079.07 –– Amperage at Proportional Solenoids of Hydrostatic Unit does not Match the Registered Speed. NOT OK: Additionally stored TCU and PLC diagnostic trouble code(s) take(s) priority.

– – –1/1

TM4726 (01NOV03)

211-UIC-138

6020 to 6920S tractors 022204

PN=1344

UIC Diagnostic Trouble Codes

UIC 305189.02 — Fault in Circuit of Transmission Enable Relay

Diagnostic trouble code UIC 305189.02 is stored if the UIC detects a problem in the circuit of the transmission

enable relay K02/1. This diagnostic trouble code triggers the alarm level: “CAUTION”.

211 UIC ,139

LX12234,0000BA3 –19–01NOV03–1/1

Diagnostics The following are possible causes: • Defective transmission enable relay K02/1. • A faulty wire connection: – Cable 263, relay/ground connection between enable relay K02/1 and the user interface controller (UIC). – Cable 652, control voltage and 12-volt power supply of the transmission enable relay K02/1 NOTE: The UIC interrupts ground cable 263 to transmission enable relay K02/1 in the following cases: • A problem has been detected in the transmission monitoring circuit (TCU diagnostic trouble codes take priority). • A problem has been detected in the control voltage and 12-volt power supply of the transmission enable relay K02/1 (TCU diagnostic trouble codes take priority). Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-139

6020 to 6920S tractors 022204

PN=1345

UIC Diagnostic Trouble Codes 2 Checking transmission enable relay K02/1 in Diagnostic Mode 211 UIC ,140

• Engine off.

OK: • Diagnosis completed.

NOTE: With the reverse drive lever in its neutral position, the correct display (“X11”) must stay on the screen for longer than 5 seconds. The display must be watched for at least 5 seconds, as some of the faults at relay K02/1 take 5 seconds to appear on the screen. The relay is then de-activated after approx. 5 seconds. • Access address UIC 11. UIC 11 –– Status, transmission enable relay K02/1—Specification Reverse drive lever in position for corner park (relay not activated):—Status .............................................................................. X10 Reverse drive lever in position for neutral (relay activated by UIC via ground cable 263):—Status ........................................................................................ X11

• Type of error indicates a loose contact, GO TO: Circuit/harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, Section 245, Group TCU. NOT OK: GO TO: Circuit/harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, Section 245, Group TCU.

– – –1/1

UIC 305190.09 — Transmission Control Unit has Stopped Transmitting Data

Diagnostic trouble code UIC 305190.09 is saved when there is a problem in transferring data between the transmission control unit (TCU) and the user interface controller. Reception of the CAN messages regarding direction of travel, clutch switch signal and

transmission input/output speeds is intermittent or non-existent (intermittent reception could be due to a loose wire). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BA4 –19–01NOV03–1/1

TM4726 (01NOV03)

211-UIC-140

6020 to 6920S tractors 022204

PN=1346

UIC Diagnostic Trouble Codes Diagnostics The following are possible causes: • Blown TCU fuse(s) F04/15 and/or F05/5. • A fault in the TCU’s monitoring circuit (faulty transmission input speed sender B61, transmission output speed sender B63 and/or clutch pedal switch S72). – TCU diagnostic trouble codes take priority. • Defective 29-bit CAN BUS connection or power supply to the transmission control unit causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the transmission control unit (UIC 305054.09 and/or SIC 334003.09). • Defective 29-bit CAN BUS connection or power supply to the user interface controller causes an intermittent problem in transferring data. – Other diagnostic trouble codes are saved that indicate a general problem in transferring data to/from the user interface controller (ECU 000898.09 and/or TCU 304161.09). • A general 29-bit CAN BUS problem. – If other diagnostic trouble codes from other control units are saved that indicate a problem in the 29-bit CAN BUS: • Intermittent 29-bit CAN BUS malfunction caused by strong electromagnetic influences. • Defective engine control unit. Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 245-05-007, Electronic Control Units - Location and Allocation. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References). • Reference 245-20-001, Data BUS Systems — Summary of References.

– – –1/1

TM4726 (01NOV03)

211-UIC-141

6020 to 6920S tractors 022204

PN=1347

211 UIC ,141

UIC Diagnostic Trouble Codes 1 Preliminary test

1.1

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. 211 UIC ,142

OK: If the diagnostic trouble code is no longer generated: Diagnosis completed.

ECU diagnostic trouble codes take priority.

NOT OK: Diagnostic trouble code is active and no priority diagnostic codes exist: GO TO 1.3

1.3

OK: GO TO 1.4

Check TCU fuses F04/15 and/or F05/5.

NOT OK: Put in a new fuse.

1.4 - A general 29-bit CAN BUS problem

OK: If no diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: GO TO 2.

1.2

Check whether additional diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS.

NOT OK: If diagnostic trouble codes are saved from other control units that indicate a general problem in the 29-bit CAN BUS: Do the 29-bit CAN BUS - Check (tractors with cab), (Section 213, Group 45).

– – –1/1

TM4726 (01NOV03)

211-UIC-142

6020 to 6920S tractors 022204

PN=1348

UIC Diagnostic Trouble Codes 2 Checking the TCU plug (29-bit CAN BUS connection and power supply)

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test. 211 UIC ,143

X332 68-pin plug for TCU—Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 45 Lead 052 (positive, BAT) ........ 12 volts at pins 23 and 68 Lead 050 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X332 68-pin plug for TCU

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08. – – –1/1

TM4726 (01NOV03)

211-UIC-143

6020 to 6920S tractors 022204

PN=1349

UIC Diagnostic Trouble Codes 3 Checking the UIC plug (29-bit CAN BUS connection and power supply) 211 UIC ,144

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

• Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as required and carry out an operational test.

X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts For circuit diagram, see: LX1025887 –UN–28NOV01

X133 68-pin plug for UIC

• Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

UIC 305207.02 — INFORMATION FOR OPERATOR: Tractor Start-up with Reverse Drive Lever Not in Neutral or Corner Park

Diagnostic trouble code UIC 305207.02 is generated if the reverse drive lever is neither in neutral nor corner park while the tractor is being jump-started. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the

operator; it triggers the alarm level: “Information”. If diagnostic trouble code 305207.02 is generated even though there has been no attempt to jump-start the tractor, this indicates that the neutral start switch (S79) must be defective.

LX12234,0000BA5 –19–01AUG01–1/1

TM4726 (01NOV03)

211-UIC-144

6020 to 6920S tractors 022204

PN=1350

UIC Diagnostic Trouble Codes

UIC 305208.02 — Internal Transmission Power Supply (VPS), Shorted Circuit

Diagnostic trouble code UIC 305208.02 is generated if the UIC detects 12 volts at the monitor input of the internal transmission power supply (VPS1) during its initialization phase (self-check after ignition is switched

on). This diagnostic trouble code is not stored in the controller’s memory but it does trigger the alarm level: “Information”.

LX12234,0000BA6 –19–01NOV03–1/1

Diagnostics

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active (code is regenerated after it has been deleted and the ignition switched ON/OFF): GO TO 2.

– – –1/1

2 Checking internal transmission power supply (VPS)

Engine OFF, ignition ON.

OK: GO TO 3.

• Access address UIC 11.

NOT OK: GO TO: Circuit/harness test for transmission enable signal from relay K02/1 and clutch pedal switch S72; see Technical Manual, Section 245, Group TCU.

UIC 11 –– Status, power supply (cable 652) for transmission enable relay K02/1— Specification Internal transmission power supply (VPS) present:—Status ............................................................................................... X1X

– – –1/1

TM4726 (01NOV03)

211-UIC-145

6020 to 6920S tractors 022204

PN=1351

211 UIC ,145

UIC Diagnostic Trouble Codes 3 Checking the circuit of internal transmission power supply (VPS1; cable 652) 211 UIC ,146

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections.

OK: Diagnosis completed.

Before a detailed circuit check is performed and in the case of occasional circuit problems (loose contacts), all components of the respective circuit must be checked.

NOT OK: Recondition as required and carry out an operational test.

For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit. • Reference 240-10-036, SE27-Transmission Shift (User Interface Controller). For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

UIC 305209.02 — INFORMATION FOR OPERATOR: Reverse Drive Lever is in the Position for Forward or Reverse Travel During Start-up Procedure

Diagnostic trouble code UIC 305209.02 is generated if the reverse drive lever is in the position for forward or reverse travel while the tractor is being started or the ignition is on. This diagnostic trouble code is not stored in the controller’s error memory. It is intended only as information for the operator; it triggers the alarm level: “Information”. If diagnostic trouble code UIC 305209.02

is generated even though the reverse drive lever is not in a direction of travel during start-up: Go through the procedure for diagnostic trouble code UIC 305136.02 (Reverse Drive Lever, Faulty Signals). NOTE: .

LX12234,0000BA7 –19–01AUG01–1/1

UIC 305230.02 — Controller, Internal Fault

Diagnostic trouble code UIC 305230.02 is stored when the user interface controller registers an EEPROM

error. This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BA8 –19–01AUG01–1/1

Diagnostics

– – –1/1

TM4726 (01NOV03)

211-UIC-146

6020 to 6920S tractors 022204

PN=1352

UIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active 211 (code is regenerated after UIC it has been deleted and ,147 the ignition switched ON/OFF): Replace the user interface controller (UIC) with a new one.

– – –1/1

UIC 305240.11 — Controller Connected to Wrong Wiring Harness Connector

Diagnostic trouble code UIC 305240.11 is saved when the user interface controller detects an erroneous signal in the circuit of the control unit identification.

This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BA9 –19–01APR02–1/1

Diagnostics The following are possible causes: • Wrong controller connected to UIC connector X133. • Open circuit at lead 914. • Defective user interface controller (UIC).

– – –1/1

1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO TO 2.

– – –1/1

TM4726 (01NOV03)

211-UIC-147

6020 to 6920S tractors 022204

PN=1353

UIC Diagnostic Trouble Codes 2 Checking the circuit

2.1 - Check the controller:

OK: If the correct controller is connected, GO TO 2.2.

Check the controller connected to UIC connector X133 (is the correct controller connected?).

NOT OK: Connect the correct controller to connector X133 and test its functionality.

211 UIC ,148 2.1 - Check the connecting lead: • Ignition OFF.

OK: Replace the controller and carry out an operational test.

UIC –– Connector X133 (W08)—Specification Check the controller’s identification circuit:—Continuity ..................................................... between pins 28 and 47 (lead 914)

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

UIC 305250.12 — Controller, Wrong Input Value

Diagnostic trouble code UIC 305250.12 is stored if the tractor model setting/input in the UIC does not match the tractor model setting/input in the transmission

control unit (TCU). This diagnostic trouble code triggers the alarm level: “CAUTION”.

LX12234,0000BAA –19–01SEP02–1/1

Diagnostics The following are possible causes: • Incorrect tractor model setting/input at the transmission control unit (TCU). Additional references: • Reference 245-TCU-200, Theory of Operation (Transmission Control Unit). • Reference 245-TCU-001, Calibration and Input Addresses, Transmission Control Unit. • Reference 245-UIC-200, Theory of Operation (User Interface Controller). • Reference 245-UIC-001, Calibration and Input Addresses, User Interface Controller.

– – –1/1

TM4726 (01NOV03)

211-UIC-148

6020 to 6920S tractors 022204

PN=1354

UIC Diagnostic Trouble Codes 1 Preliminary test

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: Diagnostic trouble code is not active: Diagnosis completed. NOT OK: Diagnostic trouble code is active: GO 211 TO 2 UIC ,149

– – –1/1

2 Checking the input addresses in the UIC and TCU

2.1 - Check input address UIC 36:

OK: GO TO 2.2

• Access address UIC 36.

NOT OK: Modify setting, confirm and carry out an operational test.

UIC 36 –– Input, tractor type—Specification Input for 6320 and 6420 tractors:— Status .............................................................................................................................. Input for 6620 tractors:—Status ...................................................................................... Input for 6820 tractors:—Status ...................................................................................... Input for 6920 tractors:—Status ......................................................................................

0 1 2 3

2.2 - Check input address TCU 44:

OK: Diagnosis completed.

• Access address TCU 44: TCU 44 –– Input, tractor type—Specification Input for 6420 tractors with Stage I engine to 97/68/EC (ECU Level 4):— Status .................................................................................................................... Input for 6320 and 6420 tractors with Stage II engine to 97/68/EC (ECU Level 11):—Status ........................................................................................................... Input for 6620 tractors:—Status ............................................................................ Input for 6820 and 6920 tractors:— Status ....................................................................................................................

NOT OK: Modify setting, confirm and carry out an operational test. 051001

051002 051004 051003

– – –1/1

TM4726 (01NOV03)

211-UIC-149

6020 to 6920S tractors 022204

PN=1355

UIC Diagnostic Trouble Codes

211 UIC ,150

TM4726 (01NOV03)

211-UIC-150

6020 to 6920S tractors 022204

PN=1356

Section 212

OBSERVABLE SYMPTOMS Contents Page

Page

Group 20—Engine Engine Observable Symptom Diagnostics . . . .212-20-1

Group 51—Power Reverser Transmission Problem with Power Reverser Transmission . . . . . . . . . . . . . . . . . . . . . . . .212-51-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-51-1

Group 40—Electrical System Control Unit(s) Not Displayed (Tractors with Cab) . . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-1 Diagnosis of observable symptoms . . . . . . . . .212-40-1 Control Unit(s) Not Displayed (Open Operator’s Station and SE Tractors) . . . . .212-40-16 Diagnosis of observable symptoms . . . . . . . .212-40-16 Diagnostic Mode Cannot Be Entered or Connection Problems with Service ADVISOR (Tractors with Cab) . . . . . . . . . .212-40-19 Diagnosis of observable symptoms . . . . . . . .212-40-20 No Access to Diagnostic Mode Possible or Connection Difficulties with Service ADVISOR (Tractors with Open Operator’s Station and SE Tractors with Stage I Engines to 97/68/EC). . . . . . . . . . . . . . . . .212-40-26 Diagnosis of observable symptoms . . . . . . . .212-40-26 No Access to Diagnostic Mode Possible or Connection Difficulties with Service ADVISOR (Tractors with Open Operator’s Station and SE Tractors with Stage II Engines to 97/68/EC, Level 12) . . . . . . . . .212-40-28 Diagnosis of observable symptoms . . . . . . . .212-40-29 Problem with the Battery . . . . . . . . . . . . . . . .212-40-31 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-31 Problem with the Starting Motor . . . . . . . . . .212-40-32 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-32 Problem with the Horn. . . . . . . . . . . . . . . . . .212-40-33 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-33 Problem with the Windshield Wiper . . . . . . . .212-40-34 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-35 Problem with the Windshield Washer . . . . . .212-40-36 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-36 Problem with the Rear Window Wiper . . . . . .212-40-37 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-37 Problem with the Rear Window Washer . . . .212-40-38 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .212-40-38 Group 50—SyncroPlus Transmission Problem with SyncroPlus Transmission. . . . . .212-50-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-50-1 TM4726 (01NOV03)

Group 53—AutoPowr/IVT Transmission Problem with AutoPowr/IVT Transmission . . .212-53-1 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . .212-53-1 Group 55—PowrQuad, PowrQuad Plus and AutoQuad Transmissions Problem with PowrQuad Transmission . . . . . .212-55-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-55-1 Problem with the PowrQuad Plus and AutoQuad Transmissions . . . . . . . . . . . . . . .212-55-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-55-3 Group 56—Drive Systems Problem with the Rear PTO . . . . . . . . . . . . . .212-56-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-56-1 Diagnosis for slippage at rear PTO (when operating under load). . . . . . . . . . . . . . . . . .212-56-3 Problem with the Front PTO . . . . . . . . . . . . . .212-56-5 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . .212-56-5 Diagnosis for symptom: Slippage at front PTO (when operating under load) . . . . . . . .212-56-7 Diagnosis for symptom: Unusual Noise when running or rough front PTO engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212-56-8 Group 60—Steering and Brakes Problem with the Brakes . . . . . . . . . . . . . . . . .212-60-1 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . .212-60-1 Problem with the Steering . . . . . . . . . . . . . . . .212-60-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-60-2 Problem with the Handbrake . . . . . . . . . . . . . .212-60-3 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-60-4 Group 70—Hydraulic System Problem with the Rockshaft. . . . . . . . . . . . . . .212-70-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-70-1 Problem with the Rockshaft’s Remote Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . .212-70-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-70-3

212-1

Continued on next page

6020 to 6920S tractors 022204

PN=1

212

Contents

Page

Group 90—Operator’s Cab Problem with operator’s seat MSG95 . . . . . . .212-90-1 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-90-1 Problem with the Air-Conditioning System. . . .212-90-2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .212-90-2

212

TM4726 (01NOV03)

212-2

6020 to 6920S tractors 022204

PN=2

Group 20

Engine Engine Observable Symptom Diagnostics Additional references: Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram and diagnostic schematic, see: • Reference 240-10A-052, SE23A - Electronic Engine Control (PowrQuad Plus and AutoPowr transmissions), for tractors with cab and Level 1 or Level 12 ECU. • Reference 240-10-034, SE23B - Electronic Engine Control (PowrQuad Plus, AutoQuad and AutoPowr/IVT transmissions), for tractors with cab and ECU Level 4 or Level 11. • Reference 240-10A-021, SE23 - Electronic Engine Control, for tractors with open operator station. • Reference 240-10B-025, SE23 - Electronic Engine Control, for SE-tractors. For component location and pin arrangement, refer to:

•

• • • • •

Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-501, Wiring Harnesses for Tractors with AutoQuad Transmission and Stage II Engine to 97/68/EC — Summary of References. Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References Reference 240-26-503, Wiring Harnesses for Tractors with Open Operator’s Station and Stage II Engine to 97/68/EC — Summary of References. Reference 240-26-504, Wiring Harnesses for SE Tractors with Stage II Engine to 97/68/EC — Summary of References.

• Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad

Symptom

Problem

Solution

Engine Cranks/Won’t Start

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E1 - Engine Cranks/Won’t Start in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E1 - Engine Cranks/Won’t Start in Section 04, Group 150 of CTM170. For engines with a Level 11 ECU, see Level 11 ECU - E1 - Engine Cranks/Won’t Start in Section 04, Group 150 of CTM220.

Continued on next page

TM4726 (01NOV03)

212-20-1

LX25546,000059C –19–01SEP02–1/6

6020 to 6920S tractors 022204

PN=1359

212 20 1

Engine Symptom

Problem

Solution

For engines with a Level 12 ECU, see Level 12 ECU - E1 - Engine Cranks/Won’t Start in Section 04, Group 150 of CTM331.

212 20 2

For engines with a mechanical injection pump, see E1 - Engine Cranks/Won’t Start in Section 04, Group 150 of CTM207. Engine Misfires/Runs Irregularly

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E2 - Engine Misfires/Runs Irregularly in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E2 - Engine Misfires/Runs Irregularly in Section 04, Group 150 of CTM170. For engines with a Level 11 ECU, see Level 11 ECU - E2 - Engine Misfires/Runs Irregularly in Section 04, Group 150 of CTM220. For engines with a Level 12 ECU, see Level 12 ECU - E2 - Engine Misfires/Runs Irregularly in Section 04, Group 150 of CTM331. For engines with a mechanical injection pump, see E2 - Engine Misfires/Runs Irregularly in Section 04, Group 150 of CTM207.

Engine Does Not Develop Full Power

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E3 - Engine Does Not Develop Full Power in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E3 - Engine Does Not Develop Full Power in Section 04, Group 150 of CTM170.

Continued on next page

TM4726 (01NOV03)

212-20-2

LX25546,000059C –19–01SEP02–2/6

6020 to 6920S tractors 022204

PN=1360

Engine Symptom

Problem

Solution

For engines with a Level 11 ECU, see Level 11 ECU - E3 - Engine Does Not Develop Full Power in Section 04, Group 150 of CTM220. For engines with a Level 12 ECU, see Level 12 ECU - E3 - Engine Does Not Develop Full Power in Section 04, Group 150 of CTM331. For engines with a mechanical injection pump, see E3 - Engine Does Not Develop Full Power in Section 04, Group 150 of CTM207. Engine Emits Excessive White Exhaust Smoke

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E4 - Engine Emits Excessive White Exhaust Smoke in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E4 - Engine Emits Excessive White Exhaust Smoke in Section 04, Group 150 of CTM170. For engines with a Level 11 ECU, see Level 11 ECU - E4 - Engine Emits Excessive White Exhaust Smoke in Section 04, Group 150 of CTM220. For engines with a Level 12 ECU, see Level 12 ECU - E4 - Engine Emits Excessive White Exhaust Smoke in Section 04, Group 150 of CTM331. For engines with a mechanical injection pump, see E4 - Engine Emits Excessive White Exhaust Smoke in Section 04, Group 150 of CTM207.

Continued on next page

TM4726 (01NOV03)

212-20-3

LX25546,000059C –19–01SEP02–3/6

6020 to 6920S tractors 022204

PN=1361

212 20 3

Engine Symptom

Problem

Solution

Engine Emits Excessive Black or Gray Smoke

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E5 - Engine Emits Excessive Black or Gray Smoke in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E5 - Engine Emits Excessive Black or Gray Smoke in Section 04, Group 150 of CTM170.

212 20 4

For engines with a Level 11 ECU, see Level 11 ECU - E5 - Engine Emits Excessive Black or Gray Smoke in Section 04, Group 150 of CTM220. For engines with a Level 12 ECU, see Level 12 ECU - E5 - Engine Emits Excessive Black or Gray Smoke in Section 04, Group 150 of CTM331. For engines with a mechanical injection pump, see E5 - Engine Emits Excessive Black or Gray Smoke in Section 04, Group 150 of CTM207. Engine Will Not Crank

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E6 - Engine Will Not Crank in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E6 - Engine Will Not Crank in Section 04, Group 150 of CTM170. For engines with a Level 11 ECU, see Level 11 ECU - E6 - Engine Will Not Crank in Section 04, Group 150 of CTM220.

Continued on next page

TM4726 (01NOV03)

212-20-4

LX25546,000059C –19–01SEP02–4/6

6020 to 6920S tractors 022204

PN=1362

Engine Symptom

Problem

Solution

For engines with a Level 12 ECU, see Level 12 ECU - E6 - Engine Will Not Crank in Section 04, Group 150 of CTM331. For engines with a mechanical injection pump, see E6 - Engine Will Not Crank in Section 04, Group 150 of CTM207. Engine Idles Poorly

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E7 - Engine Idles Poorly in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E7 - Engine Idles Poorly in Section 04, Group 150 of CTM170. For engines with a Level 11 ECU, see Level 11 ECU - E7 - Engine Idles Poorly in Section 04, Group 150 of CTM220. For engines with a Level 12 ECU, see Level 12 ECU - E7 - Engine Idles Poorly in Section 04, Group 150 of CTM331. For engines with a mechanical injection pump, see E7 - Engine Idles Poorly in Section 04, Group 150 of CTM207.

Abnormal Engine Noise

Engine Problem

For engines with a Level 1 ECU, see Level 1 ECU - E8 - Abnormal Engine Noise in Section 04, Group 150 of CTM284. For engines with a Level 4 ECU, see Level 4 ECU - E8 - Abnormal Engine Noise in Section 04, Group 150 of CTM170.

Continued on next page

TM4726 (01NOV03)

212-20-5

LX25546,000059C –19–01SEP02–5/6

6020 to 6920S tractors 022204

PN=1363

212 20 5

Engine Symptom

Problem

Solution

For engines with a Level 11 ECU, see Level 11 ECU - E8 - Abnormal Engine Noise in Section 04, Group 150 of CTM220. For engines with a Level 12 ECU, see Level 12 ECU - E8 - Abnormal Engine Noise in Section 04, Group 150 of CTM331.

212 20 6

For engines with a mechanical injection pump, see E8 - Abnormal Engine Noise in Section 04, Group 150 of CTM207. Excessive Oil Consumption

Engine Problem

See 4.5L/6.8L - L1 - Excessive Oil Consumption in Section 04, Group 150 of CTM104.

Engine Oil Pressure Low

Engine Problem

See 4.5L/6.8L - L2 - Engine Oil Pressure Low in Section 04, Group 150 of CTM104.

Engine Oil Pressure High

Engine Problem

See 4.5L/6.8L - L3 - Engine Oil Pressure High in Section 04, Group 150 of CTM104.

Engine Coolant Temperature Above Normal

Engine Problem

See 4.5L/6.8L - C1 - Engine Coolant Temperature Above Normal in Section 04, Group 150 of CTM104.

Engine Coolant Temperature Below Normal

Engine Problem

See 4.5L/6.8L - C2 - Engine Coolant Temperature Below Normal in Section 04, Group 150 of CTM104.

Coolant in Oil or Oil in Coolant

Engine Problem

See 4.5L/6.8L - C3 - Coolant in Oil or Oil in Coolant in Section 04, Group 150 of CTM104.

LX25546,000059C –19–01SEP02–6/6

TM4726 (01NOV03)

212-20-6

6020 to 6920S tractors 022204

PN=1364

Group 40

Electrical System Control Unit(s) Not Displayed (Tractors with Cab)

Symptom indicates that one or more controller(s) is/are not displayed. If you enter diagnostic mode and find that only the word “ALL” is displayed, or if diagnostic mode cannot be accessed at all, you must go through the procedure for the symptom “Diagnostic Mode Cannot Be Entered”.

212 40 1

LX12234,0000C12 –19–01NOV03–1/1

Diagnosis of observable symptoms The following are possible causes: • Faulty power supply to the control unit: – Blown fuse. – A fault in the lead connection (lead or contact). – Faulty ground connection. • Defective CAN BUS connection to the control unit: – A fault in the lead connection of the communication lines (lead or contact). • Internal problem in the control unit.

– – –1/1

1 Preliminary tests

NOTE: All related codes must be resolved before proceeding. Access the codes.

NOT OK: If no related diagnostic trouble codes are saved: GO TO 2. OK: Recondition as needed, then access control unit.

– – –1/1

TM4726 (01NOV03)

212-40-1

6020 to 6920S tractors 022204

PN=1365

Electrical System 2 Checking the power supply and control unit connection

2.1 - Check the control unit’s fuse:

OK: GO TO 2.2

Summary of control units Control unit

212 40 2

Fuse

ATC

Control unit for ClimaTrac (automatic air-conditioning)

F05/1 (ELX) and F05/14 (BAT)

BCU

Basic control unit

F03/1 (ELX)

BIF

Basic informator

F04/9 (ELX) and F04/10 (BAT).

ECU

Engine control unit (ECU) (Level 1)

F04/1 (IGN)

ECU

Engine control unit (ECU) (Level 4)

F04/1 (IGN) and F04/2 (BAT)

ECU

Engine control unit (Level 11, HPCR)

F04/1 (IGN), F04/2 (BAT) and F04/9 (ELX)

EPC

Control unit for PowrQuad Plus and AutoQuad transmissions

F04/15 (ELX) and F04/16 (BAT).

PLC

Park lock controller

F05/3 (ELX) and F05/4 (BAT).

PRF

Performance monitor

F04/12 (ELX)

SFA

Control unit for front axle and cab suspension

F03/8 (BAT) and F04/9 (ELX)

SIC

Controller for the E-SCVs / E-ICVs

F03/13 (BAT) and F03/15 (ELX)

SSU

AutoTrac (steering system) control unit

F06/14 (BAT) and F06/15 (ELX)

TCU

Control unit for AutoPowr/IVT transmission

F04/15 (ELX) and F05/5 (BAT)

TEC

Control unit for tractor equipment interface

F05/11 (ACC)

UIC

User interface controller

F04/14 (ELX)

2.2 - Check connection of relevant control unit: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • • • •

Check the power supply. Check the 29-bit CAN BUS communication lines (934/935). Check the 29-bit CAN BUS screen lines (930/932) (if equipped). Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

• • • • • • • • • • • • • • •

ATC: GO TO 15. BCU: GO TO 3. BIF: GO TO 4. ECU, Level 1: GO TO 5. ECU, Level 4: GO TO 6. ECU, Level 11 (HPCR): GO TO 14. EPC: GO TO 7. PLC: GO TO 8. PRF: GO TO 9. SFA: GO TO 10. SIC: GO TO 11. SSU: GO TO 16. TCU: GO TO 12. TEC: GO TO 17. UIC: GO TO 13.

NOT OK: Recondition as needed, then access the control unit.

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as needed, then access the control unit.

– – –1/1

TM4726 (01NOV03)

212-40-2

6020 to 6920S tractors 022204

PN=1366

Electrical System 3 Check the connection of Basic Control Unit (BCU) (W08 — Cab Harness)

For circuit diagram, see: • Reference 240-10-024, SE16H - BCU (Power Supply, Acoustic Alarm). • Reference 240-10-022, SE16F - Basic Control Unit (BCU) (Speed Sensor and Radar) (AutoPowr/IVT Transmission). • Reference 240-10A-051, SE16F - Basic Control Unit (BCU) (Speed Sensor and Radar) (PowrQuad Plus or AutoQuad Transmissions). For component location and pin arrangement, see cab wiring harness W08. X483/2 45-pin plug for basic control unit (BCU)— Specification Power supply:—Lead 571 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. IF OK: If only the basic control unit fails to appear on the display: Replace BCU and carry out an operational check. NOT OK: Recondition the 212 faulty lead connection as 40 needed, then access the 3 control unit.

LX1025886 –UN–28NOV01

X483/2 45-pin plug for basic control unit (BCU) X483/1 68-pin plug for basic control unit (BCU)— Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025887 –UN–28NOV01

X483/1 68-pin plug for basic control unit (BCU)

– – –1/1

TM4726 (01NOV03)

212-40-3

6020 to 6920S tractors 022204

PN=1367

Electrical System 4 Check the connection of basic informator (BIF) (W09 — Cowl Harness)

For circuit diagram, see: • Reference 240-10-004, SE2-Basic Informator For component location and pin arrangement, see cowl harness W09. X25 26-pin plug for basic informator—Specification Power supply:—Lead 050 ....................... Ground at pin 3

212 40 4

LX1024131 –UN–14JUN00

X25/X26 26-pin plug for basic informator

X26 26-pin plug for basic informator—Specification Power supply:—Lead 922 (positive, BAT) ...................................... 12 volts at pin 10 Lead 992 (positive, ELX) ...................... 12 volts at pin 14 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 15 CAN- (lead 935) .................................................. at pin 16 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 18 Lead 932+ ............................................. 12 volts at pin 13

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the basic informator fails to appear on the display: Replace BIF and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-4

6020 to 6920S tractors 022204

PN=1368

Electrical System 5 Checking the ECU Level 1 control unit connection (W15 — harness - ECU Level 1)

NOTE: The ECU cannot be accessed via the basic informator if the ECU appears in the basic informator’s display (BIF) as “U00”! For circuit diagram, see:

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

• Reference 240-10A-052, SE23 - Electronic Engine Control For component location and pin arrangement, see wiring harness W15. X218 45-pin plug for engine control unit (ECU) (Level 1)—Specification Power supply:—Lead 622 (positive, IGN) ......................................... 12 volts at pin 1 Lead 050 ................................................ Ground at pin 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 30 CAN- (lead 935) .................................................. at pin 29

IF OK: If only the engine control unit fails to appear on the display: Replace ECU and carry out an operational check. NOT OK: Recondition the 212 faulty lead connection as 40 needed, then access the 5 control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

LX1025886 –UN–28NOV01

X218 45-pin plug for engine control unit (ECU) (Level 1)

– – –1/1

TM4726 (01NOV03)

212-40-5

6020 to 6920S tractors 022204

PN=1369

Electrical System 6 Checking the ECU Level 4 control unit connection (W15 — harness - ECU Level 4)

NOTE: The ECU cannot be accessed via the basic informator if the ECU appears in the basic informator’s display (BIF) as “U00”! For circuit diagram, see: • Reference 240-10A-052, SE23 Electronic Engine Control (PowrQuad Plus and AutoQuad Transmissions). • Reference 240-10-034, SE23B-Electronic Engine Control (AutoPowr/IVT transmission) For component location and pin arrangement, see wiring harness W15. X361 68-pin plug for engine control unit (ECU) (Level 4)—Specification Power supply:—Lead 622 (positive, IGN) ....................................... 12 volts at pin 19 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

212 40 6

LX1025887 –UN–28NOV01

X361 68-pin plug for engine control unit (ECU) (Level 4)

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the engine control unit fails to appear on the display: Replace ECU and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-6

6020 to 6920S tractors 022204

PN=1370

Electrical System 7 Check the connection of EPC controller (W08 — cab harness)

For circuit diagram, see: • Reference 240-10A-053, SE26A Transmission Control (PowrQuad Plus and AutoQuad Transmissions).

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

For component location and pin arrangement, see cab wiring harness W08. X489 (AutoQuad transmission) or X657 (AutoQuad Plus transmission), 68-pin plug for EPC— Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 23 Lead 503 (positive, BAT) ........................ 12 volts at pin 2 Lead 050 .................................... Ground at pins 1 and 24 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines (AutoQuad transmission only):—Lead 930- ........................................................ Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X489 (AQ) or X657 (AQ Plus), 68-pin plug for EPC

IF OK: If only the transmission control unit fails to appear on the display: Replace EPC and carry out an operational check. 212 NOT OK: Recondition the 40 faulty lead connection as 7 needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-7

6020 to 6920S tractors 022204

PN=1371

Electrical System 8 Check the connection of PLC controller (W08 — cab harness)

For circuit diagram, see: • Reference 240-10-037, SE28-Electronic Park Lock (AutoPowr/IVT transmission) For component location and pin arrangement, see cab wiring harness W08. X382 45-pin plug for PLC—Specification Power supply:—Lead 682 (positive, ELX) ...................................... 12 volts at pin 45 Lead 032 (positive, BAT) ...................... 12 volts at pin 23 Lead 330 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

212 40 8

LX1025887 –UN–28NOV01

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the park lock controller fails to appear on the display: Replace PLC and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 330):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 330):— Voltage ........................................................ 2.1 - 2.5 volts

X382 45-pin plug for PLC – – –1/1

9 Check the connection of PRF controller (W19 — cab roof harness)

For circuit diagram, see: • Reference 240-10-028, SE18-Performance Monitor. For component location and pin arrangement, see cab roof wiring harness W19. X486 10-pin plug for PRF (performance monitor)— Specification Power supply:—Lead 971 (positive, ELX) ....................................... 12 volts at pin G Lead 050 ................................................. Ground at pin D 29-bit CAN BUS communication lines:— CAN+ (lead 934) .................................................. at pin H CAN- (lead 935) .................................................... at pin B

LX1025888 –UN–29NOV01

X486 10-pin plug for PRF (performance monitor)

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the performance monitor fails to appear on the display: Replace PRF and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-8

6020 to 6920S tractors 022204

PN=1372

Electrical System 10 Check the connection of SFA controller (W08 — cab harness)

For circuit diagram, see: • Reference 240-10-029, SE20-Front-Wheel Drive Axle with TLS and CSC Cab Suspension.

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

For component location and pin arrangement, see cab wiring harness W08. X485 45-pin plug for the SFA controller— Specification Power supply:—Lead 762 (positive, ELX) ...................................... 12 volts at pin 23 Lead 992 (positive, BAT) ...................... 12 volts at pin 45 Lead 050 ...................................... Ground at pins 1 and 6 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

X485 45-pin plug for the SFA controller

IF OK: If only the front axle/cab suspension controller fails to appear on the display: Replace SFA and carry out an operational check. 212 NOT OK: Recondition the 40 faulty lead connection as 9 needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-9

6020 to 6920S tractors 022204

PN=1373

Electrical System 11 Check the connection of SIC controller (W16 — SIC harness)

For circuit diagram, see: • Reference 240-10-030, SE21-Electronic Actuation of SCVs. For component location and pin arrangement, see wiring harness W16. X456 45-pin plug for SIC controller—Specification Power supply:—Lead 562 (positive, ELX) ...................................... 12 volts at pin 23 Lead 662 (positive, BAT) ........................ 12 volts at pin 2 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21

212 40 10

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the controller for the E-SCVs / E-ICVs fails to appear on the display: Replace SIC and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

LX1025887 –UN–28NOV01

X456 45-pin plug for SIC controller – – –1/1

TM4726 (01NOV03)

212-40-10

6020 to 6920S tractors 022204

PN=1374

Electrical System 12 Check the connection of TCU controller (W08 — cab harness)

For circuit diagram, see: • Reference 240-10-035, SE26-Transmission Control Unit (AutoPowr/IVT transmission).

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

For component location and pin arrangement, see cab wiring harness W08. X332 68-pin plug for TCU—Specification Power supply:—Lead 572 (positive, ELX) ...................................... 12 volts at pin 45 Lead 052 (positive, BAT) ........ 12 volts at pins 23 and 68 Lead 050 ...................................... Ground at pins 1 and 2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 20 Lead 932+ ............................................. 12 volts at pin 43

LX1025887 –UN–28NOV01

IF OK: If only the transmission control unit fails to appear on the display: Replace TCU and carry out an operational check. 212 NOT OK: Recondition the 40 faulty lead connection as 11 needed, then access the control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

X332 68-pin plug for TCU

– – –1/1

TM4726 (01NOV03)

212-40-11

6020 to 6920S tractors 022204

PN=1375

Electrical System 13 Check the connection of UIC controller (W08 — cab harness)

For circuit diagram, see: • Reference 240-10-036, SE27-Transmission Shift (AutoPowr/IVT transmission). For component location and pin arrangement, see cab wiring harness W08. X133 68-pin plug for UIC—Specification Power supply:—Lead 672 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21

212 40 12

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the user interface controller fails to appear on the display: Replace UIC and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

LX1025887 –UN–28NOV01

X133 68-pin plug for UIC – – –1/1

TM4726 (01NOV03)

212-40-12

6020 to 6920S tractors 022204

PN=1376

Electrical System 14 Check the connection of ECU Level 11 (HPCR) (wiring harness W15)

For circuit diagram, see: • Reference 240-10-034, SE23B-Electronic Engine Control For component location and pin arrangement, see wiring harness W15.

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the engine control unit fails to appear on the display: Replace ECU and carry out an operational check. NOT OK: Recondition the 212 faulty lead connection as 40 needed, then access the 13 control unit.

LX1025904 –UN–20SEP02

LX1025905 –UN–20SEP02

X570/1 30-pin plug for engine control unit (ECU)

X570/2 30-pin plug for engine control unit (ECU)

ECU Level 11 (HPCR) –– plug X570/1 (wiring harness W15)—Specification Power supply:—Positive (lead 622) ...................................................... 12 volts at pin E3 Positive (lead 032) ................................................................. 12 volts at pins B1 and B2 Positive, ELX (lead 992) ...................................................................... 12 volts at pin G2 Ground (lead 050) ................................................................................ at pins C2 and C3 ECU Level 11 (HPCR) –– plug X570/2 (wiring harness W15)—Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................. at pin L1 CAN- (lead 935) .................................................................................................. at pin L2

– – –1/1

15 Check the connection of the ClimaTrac controller (ATC) (wiring harness W47)

For circuit diagram, see: • SE10 - Fan, air-conditioning system and ClimaTrac (automatic air-conditioning) For component location and pin arrangement, see wiring harness W47. X597 32-pin plug for ATC—Specification Power supply:—Lead 982 (positive, BAT) ...................................................................................................... 12 volts at pin 20 Lead 203 (positive, ELX) ....................................................................... 12 volts at pin 22 Lead 050 .................................................................................................. Ground at pin 9 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................................................................... at pin 5 CAN- (lead 935) .................................................................................................. at pin 21 29-bit CAN BUS voltage (communication lines)—Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the controller for the ClimaTrac (automating air-conditioning) fails to appear on the display: Replace ATC and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

– – –1/1

TM4726 (01NOV03)

212-40-13

6020 to 6920S tractors 022204

PN=1377

Electrical System 16 Check the connection of steering system unit (SSU) (wiring harness W51)

For circuit diagram, see: • SE35 - AutoTrac (automatic steering system) For component location and pin arrangement, see wiring harness W51.

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. IF OK: If only the AutoTrac controller fails to appear on the display: Replace SSU and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

212 40 14

LX1032237 –UN–04APR03

X631/2 48-pin plug for steering system unit (SSU)—Specification Power supply:—Lead 967 (positive, BAT) .................................................................................................... 12 volts at pin 2L1 Lead 968 (positive, ELX) .................................................................... 12 volts at pin 2M1 Lead 050 .............................................................................................. Ground at pin 2L2 Ground at pin 2M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ............................................................................................... at pin 2A1 CAN- (lead 935) ................................................................................................ at pin 2B1 29-bit CAN BUS voltage (communication lines)—Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):—Voltage .................................................... 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):—Voltage .................................................... 2.1 - 2.5 volts

LX1032236 –UN–04APR03

X631/3 32-pin plug for steering system unit (SSU)—Specification Power supply:—Lead 968 (positive, ELX) .......................................... 12 volts at pin 3H1 Lead 050 ............................................................................................. Ground at pin 3G1 – – –1/1

TM4726 (01NOV03)

212-40-14

6020 to 6920S tractors 022204

PN=1378

Electrical System 17 Check the connection of tractor equipment interface controller (TEC) (wiring harness W39)

For circuit diagram, see: • SE32 - TEC and 60-amp implement BUS socket For component location and pin arrangement, see wiring harness W39. X572 68-pin plug for tractor equipment interface controller (TEC)—Specification Power supply:—Lead 962 (positive, ELX) ...................................... 12 volts at pin 12 Lead 994 (positive, ELX) ...................... 12 volts at pin 19 Lead 311 (positive, ST) ........................ 12 volts at pin 52 Lead 183 (positive, ACC) ..................... 12 volts at pin 54 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 Implement CAN BUS communication lines:— CAN+ (lead 974) ................................................. at pin 58 CAN- (lead 975) .................................................. at pin 59

LX1025887 –UN–28NOV01

X572 68-pin plug for tractor equipment interface controller (TEC)

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. IF OK: If only the interface controller fails to appear on the display: Replace TEC and carry out an operational check. NOT OK: Recondition the 212 faulty lead connection as 40 needed, then access the 15 control unit.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-15

6020 to 6920S tractors 022204

PN=1379

Electrical System

Control Unit(s) Not Displayed (Open Operator’s Station and SE Tractors)

212 40 16

Symptom indicates that one or more controller(s) is/are not displayed. • For tractors with engine control unit (tractors with Stage I engines to 97/68/EC): Check the CAN BUS, see “29-bit CAN BUS - Check (Open Operator’s Station and SE Tractors with Stage I engines to 97/68/EC)”. If you enter diagnostic mode and find that only the word “ALL” is displayed, or if diagnostic mode cannot be accessed at all, you must go through the procedure for the symptom “Diagnostic Mode Cannot Be Entered (Tractors with Open Operator’s Station and SE Tractors with Stage II Engines according to 97/68/EC; Level 12)”.

LX12234,0000C7B –19–01NOV03–1/1

Diagnosis of observable symptoms The following are possible causes: • Faulty power supply to the control unit: – Blown fuse. – A fault in the lead connection (lead or contact). – Faulty ground connection. • Defective CAN BUS connection to the control unit: – A fault in the lead connection of the communication lines (lead or contact). • Internal problem in the control unit.

– – –1/1

TM4726 (01NOV03)

212-40-16

6020 to 6920S tractors 022204

PN=1380

Electrical System 1 Preliminary tests

NOTE: All related codes must be resolved before proceeding. Access the codes.

NOT OK: If no related diagnostic trouble codes are saved: GO TO 2. OK: Recondition as needed, then access control unit.

– – –1/1

2 Checking the power supply and control unit connection

2.1 - Check the control unit’s fuse:

OK: GO TO 2.2

Summary of control units Control unit

Fuse

BCU

Basic control unit

F107 (ELX)

ECU

Engine control unit (Level 12) for tractors with open operator’s station

F104 (ELX) F21/2 (BAT) F21/3 (IGN)

ECU

Engine control unit (Level 12) for SE tractors

F104 (ELX) F025/1 (BAT, 20A) F025/2 (IGN, 10A)

2.2 - Check connection of relevant control unit: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

NOT OK: Recondition as needed, then access the control unit.

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as needed, then access the control unit.

• BCU: GO TO 3. • ECU, Level 12: GO TO 4.

– – –1/1

TM4726 (01NOV03)

212-40-17

6020 to 6920S tractors 022204

PN=1381

212 40 17

Electrical System 3 Check the connection of Basic Control Unit (BCU) (wiring harness W08)

For component location and pin arrangement, see wiring harness W08. Basic control unit (BCU) with 2 connectors: (for tractors up to serial no. 398790). X483/2 45-pin plug for basic control unit (BCU)— Specification Power supply:—Lead 571 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1

212 40 18

LX1025886 –UN–28NOV01

X483/2 45-pin plug for basic control unit (BCU) X483/1 68-pin plug for basic control unit (BCU)— Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 3.1 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 1.9 - 2.5 volts Basic control unit (BCU) with 3 connectors: (for tractors from serial no. 398791).

LX1025887 –UN–28NOV01

X483/1 68-pin plug for basic control unit (BCU)

– – –1/2

TM4726 (01NOV03)

212-40-18

6020 to 6920S tractors 022204

PN=1382

Electrical System X616/2 48-pin plug for basic control unit (BCU)— Specification Power supply:—Lead 112 (positive, BAT) .................................... 12 volts at pin 2L1 Lead 882 (positive, ELX) ................... 12 volts at pin 2M1 Lead 050 ..................................... Ground to pins 2L2 and 2M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ............................................... at pin 2A1 CAN- (lead 935) ................................................ at pin 2B1

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts.

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 3.1 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 1.9 - 2.5 volts

NOT OK: Recondition the 212 faulty lead connection as 40 needed, then access the 19 control unit.

IF OK: If only the basic control unit fails to appear on the display: Replace BCU and carry out an operational check.

LXS50046 –UN–17APR03

–19– –2/2

4 Check the connection of ECU Level 12 (DE10) (wiring harness W15)

For component location and pin arrangement, see wiring harness W08. ECU Level 12 (DE10) –– plug X570 (W15)— Specification Power supply:—Positive (lead 622) .............................................. 12 volts at pin A2 Positive (lead 032) ................................ 12 volts at pin K1 Positive (lead 973) ................................ 12 volts at pin H1 Ground (lead 050) .............................................. at pin J2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................ at pin G1 CAN- (lead 935) .................................................. at pin F1 LX1025904 –UN–20SEP02

X570 30-pin plug for engine control unit (ECU)

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: If only the engine control unit fails to appear on the display: Replace ECU and carry out an operational check. NOT OK: Recondition the faulty lead connection as needed, then access the control unit.

– – –1/1

Diagnostic Mode Cannot Be Entered or Connection Problems with Service ADVISOR (Tractors with Cab)

This symptom indicates that it is not possible to enter the diagnostic mode (access the diagnostic trouble codes or information about the controllers) via the basic informator (BIF), performance monitor (PRF) or Service ADVISOR. LX12234,0000C14 –19–01NOV03–1/1

TM4726 (01NOV03)

212-40-19

6020 to 6920S tractors 022204

PN=1383

Electrical System Diagnosis of observable symptoms The following are possible causes:

212 40 20

• It is impossible to access the diagnostic mode by any means: – Fault in the power supply to active terminating resistor A14 or A62 (fuse F04/13 has blown or diode K09/2 is faulty). – Defective ELX circuit (power supply for active terminating resistor A14 or A62). – Fault at an active terminating resistor (A14 or A62) or at a passive terminating resistor (A15 or A61). – Defective screening of the CAN BUS (screen lines or terminating resistors). – Defective 29-bit CAN BUS communication lines (934 and 935). • Diagnostic mode cannot be entered via the service plug (performance monitor or Service ADVISOR): – Defective power supply to the service plug (fuse F03/14). – Defective CAN BUS connection to the service plug. – Defective performance monitor. • Diagnostic mode cannot be accessed via the basic informator (BIF): – Defective power supply to the basic informator (fuses F04/9 and F04/10). – Defective roll-mode switch (RMS). – Faulty basic informator. • Diagnostic mode cannot be accessed via the performance monitor (PRF): – Performance monitor (incorrect basic setting (CAN/CCD). – Defective power supply to the performance monitor (fuse F04/12). NOTE: For information on how to connect Service ADVISOR to the tractor, see installation instructions MHM767 in the “Publications” tab.

– – –1/1

TM4726 (01NOV03)

212-40-20

6020 to 6920S tractors 022204

PN=1384

Electrical System 1 Preliminary tests

1.1 Is access to the diagnostic mode impossible by any means (neither via the basic informator BIF, nor performance monitor PRF, nor service plug X571)?

OK: No access to diagnostic mode possible by any means: GO TO 1.2 NOT OK: Diagnostic mode cannot be accessed via the basic informator (BIF): GO TO 2. NOT OK: Diagnostic mode cannot be accessed via the performance monitor (PRF): GO TO 3.

212 40 21

NOT OK: Diagnostic mode cannot be accessed via the service plug (performance monitor or Service ADVISOR) and a problem with the diagnostic unit can be ruled out: GO TO 4.

1.2 - Preliminary test for 29-bit CAN BUS: • Check battery voltage. See "Battery Checks", Section 240, Group 15. • Check the power supply to the active 29-bit CAN BUS terminator (A14 or A62): – Fuse F04/13. – Diode K09/2 (3 amp). • Check the power supply for the electronics (ELX circuit): – Fuse F04/6. – ELX relay. See component testing “Relay for power supply to the electronics (K01/2)” – Diode K09/1 (1 amp). For circuit diagram, see SE1-Starting Motor and Charging Circuit:

NOT OK: Repair as needed and go into the diagnostic mode. OK: Check 29-bit CAN BUS. See "Test procedure for 29-BIT CAN BUS", Section 213, Group 40.

• Reference 240-10-001, Sub-System Diagnostics (Cab) — Summary of References For component location and pin arrangement, see cab wiring harness W08.

– – –1/1

TM4726 (01NOV03)

212-40-21

6020 to 6920S tractors 022204

PN=1385

Electrical System 2 Access not possible via the basic informator (BIF)

2.1 - Preliminary test:

OK: GO TO 2.2

• Check fuses F04/9 and F04/10.

NOT OK: Recondition as needed and carry out an operational test.

2.2 - Check the roll-mode switch:

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

Check the roll-mode switch via the performance monitor or Service ADVISOR. Access address BIF005: 212 40 22

BIF 05 –– Status, roll-mode switch (S32)—Specification Roll-mode switch not actuated:—Status ..................................................................... XX0 Roll-mode switch actuated:—Status ........................................................................... XX1 For circuit diagram, see: • Reference 240-10-004, SE2-Basic Informator

NOT OK: • Display in address BIF005 not OK: Recondition the switch or wiring as needed and carry out an operational test. • No access to address BIF005: GO TO 2.3 – – –1/2

TM4726 (01NOV03)

212-40-22

6020 to 6920S tractors 022204

PN=1386

Electrical System 2.3 - Check connection of the basic informator’s control unit: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. – Fuse F04/9 (ELX, lead 992). – Ground connection (lead 050) of performance monitor via collective ground point XGND4 to XGND43 (cab harness W8). • Check the 29-bit CAN BUS communication lines (934/935). • Check the 29-bit CAN BUS screen lines (930/932). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. For circuit diagram, see:

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: Diagnostic mode cannot be accessed via the basic informator (BIF): Replace BIF and carry out an operational check. NOT OK: Repair the faulty connection as needed and carry out an operational test.

• Reference 240-10-004, SE2-Basic Informator For component location and pin arrangement see cab wiring harness W08 and cowl harness W09. X25 26-pin plug for basic informator—Specification Power supply:—Lead 050 ....................... Ground at pin 3

LX1024131 –UN–14JUN00

X25/X26 26-pin plug for basic informator (W09)

X26 26-pin plug for basic informator—Specification Power supply:—Lead 922 (positive, BAT) ...................................... 12 volts at pin 10 Lead 992 (positive, ELX) ...................... 12 volts at pin 14 Lead 050 .................................................. Ground at pin 1 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 15 CAN- (lead 935) .................................................. at pin 16 29-bit CAN BUS screen lines:—Lead 930- ................................... Ground at pin 18 Lead 932+ ............................................. 12 volts at pin 13 29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

–19– –2/2

TM4726 (01NOV03)

212-40-23

6020 to 6920S tractors 022204

PN=1387

212 40 23

Electrical System 3 Access not possible via the performance monitor (PRF)

3.1 - Preliminary test: • Check fuse F04/12. 3.2 - Check connection of the performance monitor’s control unit: Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. – Fuse F04/12 (ELX, lead 971). – Ground connection (lead 050) of performance monitor via collective ground point XGND6 to XGND43 (cab harness W8). • Check the 29-bit CAN BUS communication lines leading to the performance monitor (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts.

212 40 24

OK: Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. IF OK: Diagnostic mode cannot be accessed via the performance monitor (PRF): Replace PRF and carry out an operational check. NOT OK: Repair the faulty connection as needed and carry out an operational test.

For circuit diagram, see: • Reference 240-10-028, SE18-Performance Monitor For component location and pin arrangement, see cab wiring harness W08 and cab roof harness W19. X486 10-pin plug for PRF (performance monitor)— Specification Power supply:—Lead 971 (positive, ELX) ....................................... 12 volts at pin G Lead 050 ................................................. Ground at pin D 29-bit CAN BUS communication lines:— CAN+ (lead 934) .................................................. at pin H CAN- (lead 935) .................................................... at pin B

LX1025888 –UN–29NOV01

X486 10-pin plug for PRF (performance monitor) (W19)

29-bit CAN BUS voltage (communication lines)— Specification between CAN+ (lead 934) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.5 - 2.9 volts between CAN- (lead 935) and a suitable ground connection (lead 050):— Voltage ........................................................ 2.1 - 2.5 volts

– – –1/1

TM4726 (01NOV03)

212-40-24

6020 to 6920S tractors 022204

PN=1388

Electrical System 4 Access not possible via the service plug

4.1 • Can a problem with the performance monitor or Service ADVISOR laptop and diagnostic cable be ruled out? • Is access to diagnostic mode not possible only via the performance monitor?

4.1 - Check the basic (CAN/CCD) setting of the performance monitor: • Hold down the “width (7)” key and “PTO speed (9)” key simultaneously for 8 seconds (CCD or CAN on display). • The “implement (2)” key allows you to change from CCD to CAN and back again.

OK: • If access is not possible only via the performance monitor: GO TO 4.2 • If access to diagnostic mode is not possible via the performance monitor and Service ADVISOR laptop and a problem with the diagnostic unit can be ruled out: GO TO 4.2

OK: Basic setting is at CAN: GO TO 4.2 NOT OK: Basic setting is at CCD: Modify setting and carry out an operational test.

• Use the “set / save” key to store the value in the memory. 4.2 - Check power supply to service plug X571: Ignition ON. Use a multimeter to check the voltage at service plug X571 (service harness W33): Power supply to service plug—Specification between pin B (lead 952) and pin A (lead 050):— Voltage .................................................................. 12 volts

OK: GO TO 4.3 NOT OK: Check the power supply (fuse F03/14): • Positive (lead 952). • Ground (lead 050) via collective ground point XGND6 to XGND43 (W8).

LX1025890 –UN–06DEC01

4.3 - Check the CAN BUS connection at service plug X571: Use a multimeter to check the voltage at service plug X571 (service harness W33): 29-bit CAN BUS voltage (at service plug X571)—Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ................................................................................ 2.5 - 2.9 volts CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ................................................................................ 2.1 - 2.5 volts

OK: Type of error indicates a loose contact: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Check the 29-bit CAN BUS connection from the active terminator A14 or A62 to the service plug. • CAN+ (lead 934). • CAN- (lead 935).

– – –1/1

TM4726 (01NOV03)

212-40-25

6020 to 6920S tractors 022204

PN=1389

212 40 25

Electrical System

No Access to Diagnostic Mode Possible or Connection Difficulties with Service ADVISOR (Tractors with Open Operator’s Station and SE Tractors with Stage I Engines to 97/68/EC)

212 40 26

This symptom indicates that access to the diagnostic mode (accessing diagnostic trouble codes or information on the control units) is not possible via service plug X571 (performance monitor or Service ADVISOR).

LX12234,0000C65 –19–01NOV03–1/1

Diagnosis of observable symptoms The following are possible causes: • Defective power supply to the service plug X571 (SE17). – Fuse F118 blown (on tractors with open operator’s station). – Fuse F116 blown (on SE tractors). – Defective positive lead 142 or ground lead 050. • Incorrect basic setting of performance monitor. • Defective power supply to the basic control unit BCU (power supply to communication lines 934 and 935). – Fuse F107 blown. – Defective positive lead 571 or ground lead 050. • 29-bit CAN BUS communication lines: – Defective 29-bit CAN BUS communication lines (934 and 935) between BCU and service plug X571. – Defective terminator R19 (on tractors with open operator’s station, near plug X483/1 basic control unit (BCU) and on SE tractors, near the service plug). NOTE: For information on how to connect Service ADVISOR to the tractor, see installation instructions MHM767 in the “Publications” tab.

– – –1/1

TM4726 (01NOV03)

212-40-26

6020 to 6920S tractors 022204

PN=1390

Electrical System 1 Preliminary tests

1.1 • Can a problem with the performance monitor or Service ADVISOR laptop and diagnostic cable be ruled out? • Is access to diagnostic mode only possible via the performance monitor, or not possible by any means at all?

1.2 - Check the basic (CAN/CCD) setting of the performance monitor: • Hold down the “width (7)” key and “PTO speed (9)” key simultaneously for 8 seconds (CCD or CAN on display). • The “implement (2)” key allows you to change from CCD to CAN and back again.

OK: • If access is not possible only via the performance monitor: GO TO 1.2 • If no access to diagnostic mode is possible by any means and a problem with the diagnostic unit can be ruled out: GO TO 2.

OK: Basic setting is at CAN or enter: GO TO 2. NOT OK: Basic setting is at CCD: Modify setting and carry out an operational test.

• Use the “set / save” key to store the value in the memory.

– – –1/1

2 Check power supply to service plug X571.

2.1

OK: GO TO 3. • Ignition ON. • Use multimeter JT05791A to check the voltage at service plug X571 (wiring harness W08): Supply voltage—Specification between pin B (lead 142) and pin A (lead 050):— Voltage .................................................................. 12 volts

LX1025890 –UN–06DEC01

NOT OK: Check fuse F118 on tractors with open operator’s station or fuse F116 on SE tractors. IF OK: Fuse is OK: GO TO 2.2

NOTE: The power supply of 12 volts for service plug X571 is present with ignition OFF and ON.

2.2 - Check positive lead 142 and ground lead 050 For circuit diagram (SE1, SE2, SE09 and SE17), see: • Reference 240-10A-001, Sub-System Diagnostics (Open Operator’s Station) — Summary of References. • Reference 240-10B-001, Sub-System Diagnostics (SE Tractor) — Summary of References.

OK: Type of error indicates a loose contact: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as needed and carry out an operational test.

For component location and pin arrangement, see wiring harness W08.

– – –1/1

TM4726 (01NOV03)

212-40-27

6020 to 6920S tractors 022204

PN=1391

212 40 27

Electrical System 3 Checking the CAN-BUS voltage

See reference “29-bit CAN BUS - Check (Open Operator’s Station and SE Tractors with Stage I engines to 97/68/EC)”.

OK: Type of error indicates a loose contact: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as needed and carry out an operational test.

212 40 28

– – –1/1

No Access to Diagnostic Mode Possible or Connection Difficulties with Service ADVISOR (Tractors with Open Operator’s Station and SE Tractors with Stage II Engines to 97/68/EC, Level 12)

This symptom indicates that access to the diagnostic mode (accessing diagnostic trouble codes or information on the control units) is not possible via service plug (performance monitor or Service ADVISOR).

LX12234,0000C7C –19–01NOV03–1/1

TM4726 (01NOV03)

212-40-28

6020 to 6920S tractors 022204

PN=1392

Electrical System Diagnosis of observable symptoms The following are possible causes: • Defective power supply to the service plug X571 (SE17). – Fuse F118 blown (on tractors with open operator’s station). – Fuse F116 blown (on SE tractors). – Defective positive lead 142 or ground lead 050. • Defective power supply to the active terminating resistor (A62): – Fuse F104 blown. – Defective ELX circuit (power supply for A62 terminator). – Defective positive lead 973 or ground lead 050. • 29-bit CAN BUS communication lines: – Defective 29-bit CAN BUS communication lines (934 and 935). – Defective terminator A61 or A62. – Defective CAN BUS connection to the service plug. – Defective screening of the CAN BUS (screen lines or terminators A61 and/or A62). • Defective performance monitor.

212 40 29

NOTE: For information on how to connect Service ADVISOR to the tractor, see installation instructions MHM767 in the “Publications” tab.

– – –1/1

1 Preliminary tests

• Can a problem with the performance monitor or Service ADVISOR laptop and diagnostic cable be ruled out? • Is access to diagnostic mode only possible via the performance monitor, or not possible by any means at all?

OK: • If access is not possible only via the performance monitor: GO TO 1.2 • If no access to diagnostic mode is possible by any means and a problem with the diagnostic unit can be ruled out: GO TO 2.

1.2 - Check the basic (CAN/CCD) setting of the performance monitor: • Hold down the “width (7)” key and “PTO speed (9)” key simultaneously for 8 seconds (CCD or CAN on display). • The “implement (2)” key allows you to change from CCD to CAN and back again.

OK: Basic setting is at CAN: GO TO 2. NOT OK: Basic setting is at CCD: Modify setting and carry out an operational test.

• Use the “set / save” key to store the value in the memory.

– – –1/1

TM4726 (01NOV03)

212-40-29

6020 to 6920S tractors 022204

PN=1393

Electrical System 2 Preliminary test for 29-bit CAN BUS

• Check battery voltage. See "Battery Checks", Section 240, Group 15. • Check the power supply to the active 29-bit CAN BUS terminator (A62): – Fuse F104. • Check the power supply for the electronics (ELX circuit): – Fuse F102. – ELX relay. See component testing “Relay for power supply to the electronics (K101)” – Diode K108. For circuit diagram, see SE1-Starting Motor and Charging Circuit:

NOT OK: Repair as needed and go into the diagnostic mode. OK: GO TO 3.

• Reference 240-10A-001, Sub-System Diagnostics (Open Operator’s Station) — Summary of References. • Reference 240-10B-001, Sub-System Diagnostics (SE Tractor) — Summary of References.

212 40 30

For component location and pin arrangement, see wiring harness W08.

– – –1/1

3 Check power supply to service plug X571

Ignition ON. Use a multimeter to check the voltage at service plug X571: Power supply to service plug—Specification between pin B (lead 142) and pin A (lead 050):— Voltage .................................................................. 12 volts

OK: GO TO 4. NOT OK: Check the power supply (fuse F104): • Positive (lead 142). • Ground (lead 050) to XGND2 (W08).

LX1025890 –UN–06DEC01

– – –1/1

4 Check the 29-bit CAN BUS

See “29-bit CAN BUS - Check (Tractors with Open Operator’s Station and SE Tractors with Stage II Engines according to 97/68/EC, Level 12)”.

OK: Type of error indicates a loose contact: Check the connections for loose, widened, slid-back or corroded contacts. NOT OK: Recondition as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-40-30

6020 to 6920S tractors 022204

PN=1394

Electrical System

Problem with the Battery

No function can be registered with the ignition “on”. The starter motor does not turn, or does not turn fast enough

LX26156,0000087 –19–17APR02–1/1

Diagnostics Additional references: • Electrical Information: Reference 210-15-001, General References - Summary. • Reference 240-10-003, SE1 Starting and Charging Circuit (Cab) • Reference 240-10-003, SE1 Starting and Charging Circuit (Open Operator’s Station)

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Checking that the battery functions properly

See "Battery Checks" , Section 240, Group 15.

OK: Test completed, battery is functioning properly. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-40-31

6020 to 6920S tractors 022204

PN=1395

212 40 31

Electrical System

Problem with the Starting Motor

LX16167,00000C2 –19–01NOV03–1/1

Diagnostics Starting motor (M01) is not functioning properly for at least some of the time. 212 40 32

Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Transmission must be in NEUTRAL or PARK position. If the main (key) switch is turned to the START position, there should be battery voltage present at pin 50 on the starting motor. If the starting motor turns, this voltage drops to 8.5 -10.7 volts. For instructions on how to repair, see Repairing the Starting Motor.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Preliminary test

2.1 Perform a visual inspection of starting motor (M01; on l.h. side of engine block) and of the connector associated with it: ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

2.2 Preliminary test of the starting motor circuit: • Check starting motor relay K01. • Check fuse F04/04.

– – –1/1

TM4726 (01NOV03)

212-40-32

6020 to 6920S tractors 022204

PN=1396

Electrical System 3 Checking the components of the starting motor circuit

Check the components of the starting motor circuit:

OK: On tractors with AutoPowr/IVT transmission, GO TO 4.

• Starting motor (M01) • Main (key) switch (S01)

On all other tractors, GO TO 5.

See component checks for SE1-Starting Motor and Charging Circuit. For instructions on how to repair, see Repairing the Starting Motor.

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

4 Checking the components of the neutral start switch

NOTE: Unplug the neutral start switch from the wiring harness.

OK: If switch is OK, GO TO 5

Perform test on 2-pin plug of multi-function lever. NOT OK: Replace switch and carry out an operational check.

Measure continuity between pin A and pin B on the switch: When the switch is actuated (in park lock or neutral positions), it must close. Neutral start switch—Specification Switch in position for corner park or neutral:—Continuity .................................................................................. A and B closed Switch in position for forward, reverse or center park:—Continuity .............................................................................. A and B open

– – –1/1

5 Checking the starting motor circuit

For circuit diagram, see:

OK: Check all connections for loose, widened, slid-back or corroded contacts.

• Reference 240-10-003, SE1 - Starting and charging circuit For component location and pin arrangement, see engine wiring harness W02, cab wiring harness W08 and/or cowl harness W09:

– – –1/1

Problem with the Horn

LX16167,00000BF –19–01NOV03–1/1

Diagnostics Horn not functioning properly for at least some of the time, horn not making the correct sound. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

212-40-33

6020 to 6920S tractors 022204

PN=1397

212 40 33

Electrical System 1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

212 40 34

– – –1/1

2 Preliminary test

2.1 Perform a visual inspection of horn (H01; behind the front grille) and of the connector associated with it: ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

2.2 Preliminary test of the horn circuit: • Check relay K01/3. • Check fuse F06/01.

– – –1/1

3 Checking the components of the horn circuit

Check the horn (H01) and horn switch (S04). See component checks for SE03 — Horn.

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test. – – –1/1

4 Checking the positive lead and ground lead of the horn circuit

• Check positive lead 903/(262). • Check ground lead 310 (ground point XGND9).

OK: Check all connections for loose, widened, slid-back or corroded contacts.

For circuit diagram, see: • Reference 240-10-005, SE3-Horn For component location and pin arrangement, see engine wiring harness W02, cab wiring harness W08 and/or cowl harness W09:

– – –1/1

Problem with the Windshield Wiper

LX16167,00000C0 –19–01NOV03–1/1

TM4726 (01NOV03)

212-40-34

6020 to 6920S tractors 022204

PN=1398

Electrical System Diagnostics Windshield wiper is not functioning properly for at least some of the time. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Preliminary test

2.1 Perform a visual inspection of wiper motor (M03; under the roof) and of the connector associated with it: ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

2.2 Preliminary test of the windshield wiper: • Check the intermittent-wipe relay K26. • Check fuse F05/09.

– – –1/1

3 Checking the components of the windshield wiper circuit

Check the components of the windshield wiper:

OK: GO TO 4.

• Wiper motor (M03) • Wiper switch (S15) • Windshield switch (S17)

NOT OK: Recondition as required and carry out an operational test.

See component checks for SE11 and SE12 — Wiper/Washer System.

– – –1/1

TM4726 (01NOV03)

212-40-35

6020 to 6920S tractors 022204

PN=1399

212 40 35

Electrical System 4 Checking the windshield wiper circuit

For circuit diagram, see:

OK: Check all connections for loose, widened, slid-back or corroded contacts.

• Reference 240-10-012, SE11-Windshield wiper and washer For component location and pin arrangement, see cab wiring harness W08, cowl wiring harness W09 and cab roof harness W19:

– – –1/1

Problem with the Windshield Washer 212 40 36

LX16167,00000C1 –19–01NOV03–1/1

Diagnostics • Washer pump is pumping, but no water is being delivered. • Washer pump is not functioning properly for at least some of the time. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Preliminary test

2.1 Perform a visual inspection of washer pump (M05; in the fluid reservoir) and of the connector associated with it: ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts. ❒ Check the water level in the fluid reservoir.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

2.2 Preliminary test of the windshield washer: • Check fuse F05/09.

– – –1/1

TM4726 (01NOV03)

212-40-36

6020 to 6920S tractors 022204

PN=1400

Electrical System 3 Checking the components of the windshield washer circuit

Check the components of the windshield washer:

OK: GO TO 4.

• • • •

NOT OK: Recondition as required and carry out an operational test.

Washer pump (M05) Wiper switch (S15) Washer switch (S16) Windshield switch (S17)

See component checks for SE11 and SE12 — Wiper/Washer System.

– – –1/1

4 Checking the windshield washer circuit

For circuit diagram, see:

OK: Check all connections for loose, widened, slid-back or corroded contacts.

• Reference 240-10-012, SE11-Windshield wiper and washer For component location and pin arrangement, see cab wiring harness W08, cowl wiring harness W09 and cab roof harness W19:

– – –1/1

Problem with the Rear Window Wiper

LX16167,00000C4 –19–01NOV03–1/1

Diagnostics Rear window wiper is not functioning properly for at least some of the time. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

TM4726 (01NOV03)

212-40-37

6020 to 6920S tractors 022204

PN=1401

212 40 37

Electrical System 2 Preliminary test

2.1 Perform a visual inspection of wiper motor (M04; under the roof) and of the connector associated with it:

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts. 2.2 Preliminary test of the rear window wiper: • Check fuse F05/09.

212 40 38

– – –1/1

3 Checking the components of the rear window wiper circuit

Check the components of the rear window wiper:

OK: GO TO 4.

• Wiper motor (M04) • Wiper switch (S18) • Rear window switch (S20)

NOT OK: Recondition as required and carry out an operational test.

See component checks for SE11 and SE12 — Wiper/Washer System.

– – –1/1

4 Checking the rear window wiper circuit

For circuit diagram, see:

OK: Check all connections for loose, widened, slid-back or corroded contacts.

• Reference 240-10-013, SE12-Rear window wiper and washer For component location and pin arrangement, see cab wiring harness W08 and/or cab roof harness W19:

– – –1/1

Problem with the Rear Window Washer

LX16167,00000C3 –19–01NOV03–1/1

Diagnostics • Washer pump is pumping, but no water is being delivered. • Washer pump is not functioning properly for at least some of the time. Additional references: • Electrical information: Reference 210-15-001, General References - Summary.

– – –1/1

TM4726 (01NOV03)

212-40-38

6020 to 6920S tractors 022204

PN=1402

Electrical System 1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Preliminary test

2.1 Perform a visual inspection of washer pump (M06; in the fluid reservoir) and of the connector associated with it: ❒ Check for signs of damage or dirt. ❒ Check the electrical connections for bad, loose, widened, slid-back or corroded contacts. ❒ Check the water level in the fluid reservoir.

OK: GO TO 3. NOT OK: Recondition as required and carry out an operational test.

2.2 Preliminary test of the rear window washer: • Check fuse F05/09.

– – –1/1

3 Checking the components of the rear window washer circuit

Check the components of the rear window washer

OK: GO TO 4.

• Washer pump (M06) • Wiper switch (S18) • Rear window switch (S20)

NOT OK: Recondition as required and carry out an operational test.

See component checks for SE11 and SE12 — Wiper/Washer System.

– – –1/1

4 Checking the rear window washer circuit

For circuit diagram, see: • Reference 240-10-013, SE12-Rear window wiper and washer

OK: Check all connections for loose, widened, slid-back or corroded contacts.

For component location and pin arrangement, see cab wiring harness W08, cab roof harness W19, wiper harness W24 and/or wiper switch harness W25: – – –1/1

TM4726 (01NOV03)

212-40-39

6020 to 6920S tractors 022204

PN=1403

212 40 39

Electrical System

212 40 40

TM4726 (01NOV03)

212-40-40

6020 to 6920S tractors 022204

PN=1404

Group 50

SyncroPlus Transmission Problem with SyncroPlus Transmission

Symptoms: • Clutch problem. • Problem with gear and/or range shift. • Park lock does not engage/disengage.

LX12234,0000C61 –19–17APR02–1/1

Diagnostics Additional references: • Reference 250-20-001, SyncroPlus Transmission — Summary of References. • Reference 250-15-013, SyncroPlus Transmission—Layout .of Test Ports and Sending Units For information on how to repair, see • “SyncroPlus Transmission Shift Units—Reconditioning (Summary of References)”. • “SyncroPlus Transmission, Perma Clutch II Module—Reconditioning (Summary of References)”. • “SyncroPlus Transmission, Gear Transmission—Reconditioning (Summary of References)”.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Preliminary transmission test

See reference 250-05-001 , Introductory Checks for Transmission and Hydraulic Diagnosis.

OK: GO TO 3. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

212-50-1

6020 to 6920S tractors 022204

PN=1405

212 50 1

SyncroPlus Transmission 3 Performing an operational check

See reference 250-10-001 , SyncroPlus Transmission—Operational Checkout.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test. – – –1/1

4 Transmission—Doing the system checks

See reference 250-15-001 , SyncroPlus Transmission—System Check.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test.

212 50 2

– – –1/1

TM4726 (01NOV03)

212-50-2

6020 to 6920S tractors 022204

PN=1406

Group 51

Power Reverser Transmission Problem with Power Reverser Transmission

Symptoms: • • • •

Clutch problem. Problem with forward/reverse modulation. Problem with gear and/or range shift. Park lock does not engage/disengage.

LX12234,0000C62 –19–17APR02–1/1

Diagnostics Additional references: • Reference 251-20-001, Power Reverser—Summary of References. • Reference 251-15-014, Power Reverser—Layout of Test Ports and Sending Units For information on how to repair, see • “Power Reverser Shift Units—Reconditioning (Summary of References)” . • “Power Reverser, Power Reverser Module—Reconditioning (Summary of References)” . • “Power Reverser, Gear Transmission—Reconditioning (Summary of References)”.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Preliminary transmission test

See reference 250-05-001 , Introductory Checks for Transmission and Hydraulic Diagnosis.

OK: GO TO 3. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

212-51-1

6020 to 6920S tractors 022204

PN=1407

212 51 1

Power Reverser Transmission 3 Performing an operational check

See reference 251-10-001 , Power Reverser—Operational Checkout.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test. – – –1/1

4 Transmission—Doing the system checks

See reference 251-15-001 , Power Reverser—System Check.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test.

212 51 2

– – –1/1

TM4726 (01NOV03)

212-51-2

6020 to 6920S tractors 022204

PN=1408

Group 53

AutoPowr/IVT Transmission Problem with AutoPowr/IVT Transmission

Symptom: • The tractor does not move.

• More force required on brake pedal on 40-km/h tractors.

LX12234,0000C55 –19–01SEP02–1/1

Diagnosis Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 253-20-001, AutoPowr/IVT Transmission — Operation (Summary of References).

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: GO TO 2.

– – –1/1

TM4726 (01NOV03)

212-53-1

6020 to 6920S tractors 022204

PN=1409

212 53 1

AutoPowr/IVT Transmission 2 Checking the brake pedal sensor

NOTE: Slowly press the brake pedal all the way down. An acoustic signal or sudden voltage change while the potentiometer is actuated indicates a defective potentiometer.

OK: Access the diagnostic trouble codes and process them.

• Unlock the brake pedals. NOT OK: GO TO 3. • Access addresses UIC 27 and UIC 28 or template UIC 900 - Brake Pedal Sensor for AutoPowr/IVT Transmission: • Slowly press the left and right brake pedals all the way down (the point at which the brake pedal switch trips should be audible). UIC 27 –– Voltage, left brake pedal potentiometer (B88)—Specification Left brake pedal not activated:—Valid voltage range ................................................................................................ 0.9 -1.1 volts Left brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts Point at which the brake pedal switch trips:—Voltage range ............................................................... between 1.5 and 1.7 volts

212 53 2

UIC 28 –– Voltage, right brake pedal potentiometer (B88)—Specification Right brake pedal not activated:—valid voltage range ................................................................................................ 0.9 -1.1 volts Right brake pedal activated:—Maximum voltage .................................................................................................................. 4.5 volts Point at which the brake pedal switch trips:—Voltage range ............................................................... between 1.5 and 1.7 volts

– – –1/1

3 Adjusting the brake pedal sensor

See: Reference 260-15-070 , Adjusting the Brake Pedals and Switches.

OK: Diagnosis completed. NOT OK: GO TO: Reference 245-UIC-107 , Circuit Test for Brake Pedal Sensor (B88) in Section 245, Group UIC of the Technical Manual.

– – –1/1

TM4726 (01NOV03)

212-53-2

6020 to 6920S tractors 022204

PN=1410

Group 55

PowrQuad, PowrQuad Plus and AutoQuad Transmissions Problem with PowrQuad Transmission

Symptoms: • • • •

Clutch problem. Problem with forward/reverse modulation. Problem with gear and/or range shift. Park lock does not engage/disengage.

212 55 1 LX12234,0000C63 –19–17APR02–1/1

Diagnostics Additional references: • Reference 255-20-001, PowrQuad, PowrQuad Plus and AutoQuad Transmission—Summary of References • Reference 255-15-002, PowrQuad Transmission—Test Ports For information on how to repair, see • “PowrQuad Transmission Shift Unit—Reconditioning (Summary of References)” for 6120-6620 tractors. • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions—Summary of References for 6120-6620 tractors. • “PowrQuad Transmission Shift Units—Reconditioning (Summary of References)” for 6820-6920 tractors. • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Trasnmissions—Summary of References for 6820-6920 tractors.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

TM4726 (01NOV03)

212-55-1

6020 to 6920S tractors 022204

PN=1411

PowrQuad, PowrQuad Plus and AutoQuad Transmissions 2 Preliminary transmission test

See reference 250-05-001 , Introductory Checks for Transmission and Hydraulic Diagnosis.

OK: GO TO 3. NOT OK: Repair as needed and carry out an operational test. – – –1/1

3 Performing an operational check

See reference 255-10-001 , PowrQuad Transmission—Operational Check.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test.

212 55 2

– – –1/1

4 Transmission—Doing the system checks

See Reference 255-15-001 , PowrQuad Transmission—System Check.

OK: Diagnosis completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

Problem with the PowrQuad Plus and AutoQuad Transmissions

Symptoms: • Problem with the automatic speed-matching or a general problem involving shifting. • Problem with clutch modulation. The symptoms indicate an electrical, hydraulic or mechanical fault in the transmission.

LX12234,0000C52 –19–01SEP02–1/1

TM4726 (01NOV03)

212-55-2

6020 to 6920S tractors 022204

PN=1412

PowrQuad, PowrQuad Plus and AutoQuad Transmissions Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 255-20-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions—Summary of References For information on how to repair, see: • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions—Summary of References (for 6120-6620 tractors). • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions—Summary of References (for 6820-6920S tractors).

212 55 3

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Checking the settings for PowrQuad Plus and AutoQuad transmissions in the EPC and BCU

Access addresses EPC 028, EPC 030, EPC 033, EPC 134, EPC 135, EPC 157, BCU 020, BCU 056 and BCU 057 or template EPC 900 - Settings for PowrQuad Plus and AutoQuad Transmissions and check the input values. For input values, see: • Reference 245-EPC-001, Calibration and Input Addresses for PowrQuad Plus and AutoQuad Transmissions. • Reference 245-BCU-001, Calibration and Input Addresses (Basic Functions).

OK: GO TO 3. NOT OK: Modify setting, confirm and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-55-3

6020 to 6920S tractors 022204

PN=1413

PowrQuad, PowrQuad Plus and AutoQuad Transmissions 3 Check the transmission enable pressure (system pressure)

NOTE: Diagnostic address EPC 13 shows the actual clutch charge pressure at the proportional enable solenoid valve (Y38). The clutch charge pressure is dependent on the position of the clutch pedal and the position of the reverse drive lever. There is only clutch charge pressure if the reverse drive lever is set to the forward or reverse position after a valid engine start (reverse drive lever in neutral) and if the clutch pedal is not actuated. The clutch charge pressure builds up slowly (modulating), depending on the engine speed, until the max. transmission system pressure has been reached. Perform the test only while the engine is running. • Move range shift lever to neutral.

OK: GO TO 4. NOT OK: • System pressure not in OK: See diagnostic procedure for diagnostic trouble code EPC 306051.04 — Transmission Enable Pressure Too Low. • Problem with modulation, GO TO 8.

• Start the engine.

212 55 4

Access address EPC 13: EPC013 — Pressure, sending unit for enable pressure (B105)—Specification Reverse drive lever in neutral position and clutch pedal not pressed:—Minimum pressure .................................................................... approx. 0 kPa (display: XXXX0000) Reverse drive lever in forward or reverse position and clutch pedal not pressed:— Maximum (system) pressure ............................. 1200 kPa (display: XXXX1200) on 6120 - 6320 tractors 1400 kPa (display: XXXX1400) on 6420 -6820 tractors 1750 kPa (display: XXXX1750) on 6920 tractors Slowly press clutch pedal to its maximum (clutch pressure decreases depending on the clutch pedal position):—Pressure range displayed ............. 1200 kPa - 0 kPa on 6120 -6320 tractors 1400 kPa - 0 kPa on 6420 - 6820 tractors 1750 kPa - 0 kPa on 6920 tractors Transmission system pressure 6120 - 6320

6420 - 6820

6920

1200 kPa (12 bars; 174 psi)

1400 kPa (14 bars; 203 psi)

1750 kPa (17.5 bars; 254 psi)

– – –1/1

TM4726 (01NOV03)

212-55-4

6020 to 6920S tractors 022204

PN=1414

PowrQuad, PowrQuad Plus and AutoQuad Transmissions 4 Preliminary test on shift elements and direction clutch/brake

IMPORTANT: Perform the test only while the engine is running and range-shift (gear-shift) lever is in neutral. • Move range shift lever to neutral. • Start the engine. • Access address EPC 14 or template EPC 901 - Transmission Test for PowrQuad Plus and AutoQuad Transmissions. • Move the reverse drive lever to forward (clutch pedal not pressed):

OK: With transmission shifting at zero load, problem cannot be isolated: GO TO 8. NOT OK: • Problem occurs only in one direction of travel (reverse or forward): GO TO 6. • Problem at a shift element occurs in both directions of travel (reverse and forward): GO TO 7.

• Use the hand throttle to set engine speed to 1000 rpm. • Clutch pedal not depressed. • With the reverse drive lever first in forward and then in reverse, go up through the gears from 1st to 4th and check the transmission speed: EPC 14 –– Transmission Speed, Transmission Speed Sender (B104) with reverse drive lever in forward—Specification First gear and reverse drive lever in forward:—Speed (with engine speed at 1000 rpm) ................................................................................................ approx. 566 rpm Second gear and reverse drive lever in forward:—Speed (with engine speed at 1000 rpm) ................................................................................................ approx. 682 rpm Third gear and reverse drive lever in forward:—Speed (with engine speed at 1000 rpm) ................................................................................................ approx. 816 rpm Fourth gear and reverse drive lever in forward:—Speed (with engine speed at 1000 rpm) .............................................................................................. approx. 1000 rpm EPC 14 –– Transmission Speed, Transmission Speed Sender (B104) with reverse drive lever in reverse—Specification First gear and reverse drive lever in reverse:—Speed (with engine speed at 1000 rpm) ................................................................................................ approx. 590 rpm Second gear and reverse drive lever in reverse:—Speed (with engine speed at 1000 rpm) ................................................................................................ approx. 711 rpm Third gear and reverse drive lever in reverse:—Speed (with engine speed at 1000 rpm) ................................................................................................ approx. 850 rpm Fourth gear and reverse drive lever in reverse:—Speed (with engine speed at 1000 rpm) .............................................................................................. approx. 1042 rpm Summary of activated solenoid valves and engaged elements Shift element

Transmission ratio (forward)

Transmission ratio (reverse)

active

B1

1,767

1,696

active

B2

1,466

1,407

B3

1,225

1,176

C4

1.0

0.96

Gear

K1

K2

First gear

active

Second gear

K3

Third gear Fourth gear

active

– – –1/1

TM4726 (01NOV03)

212-55-5

6020 to 6920S tractors 022204

PN=1415

212 55 5

PowrQuad, PowrQuad Plus and AutoQuad Transmissions 5 Test-driving the tractor

Ask the operator or do a test-drive to decide which part of the transmission is at fault.

OK: Problem cannot be identified: Check the direction clutch/brake and the shift elements, GO TO 6. NOT OK: • Problem occurs only in one direction of travel (reverse or forward): GO TO 6. • Problem at a shift element occurs in both directions of travel (reverse and forward): GO TO 7.

212 55 6

– – –1/1

6 Checking the direction clutch/brake

Perform the pressure test at the direction clutch/brake with the engine running, the range shift lever in neutral and the reverse drive lever in the relevant direction (i.e. the direction to be checked).

OK: • Check for mechanical defects at the clutch/brake.

For the test, see: • Reference 255-15-008, PowrQuad Transmission—Checking Pressure at Forward Clutch. • Reference 255-15-009, PowrQuad Transmission—Checking Pressure at Reverse Brake.

• Problem cannot be identified: Check the shift elements, GO TO 7.

For information on how to repair, see: • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions— Summary of References (for 6120-6620 tractors). • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions— Summary of References (for 6820-6920S tractors).

NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-55-6

6020 to 6920S tractors 022204

PN=1416

PowrQuad, PowrQuad Plus and AutoQuad Transmissions 7 Checking the shift elements

Perform the pressure test on the shift elements with the engine running, the range shift lever in neutral and the relevant gear selected for that shift element (i.e. the element to be checked).

OK: • Check for mechanical defects at the shift element.

For the test, see: • Reference 255-15-010, • Reference 255-15-011, • Reference 255-15-012, • Reference 255-15-013,

• Problem cannot be identified: Check the shift elements, GO TO 8.

PowrQuad PowrQuad PowrQuad PowrQuad

Transmission—Checking Transmission—Checking Transmission—Checking Transmission—Checking

Pressure Pressure Pressure Pressure

at at at at

B1 Brake. B2 Brake. B3 Brake. C4 Clutch.

For information on how to repair, see: • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions— Summary of References (for 6120-6620 tractors). • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions— Summary of References (for 6820-6920S tractors).

NOT OK: Recondition as required and carry out an operational test. 212 55 7

– – –1/1

8 Calibrating the transmission

8.1

OK: Test completed.

For information on how to calibrate, see: Address EPC 038 — Calibration Address, calibrating the transmission.

NOT OK: If calibration does not improve the driving characteristics: GO TO 8.2

8.2

OK: Test completed.

If there are problems with modulation: Check the enable proportional solenoid Y38 for signs of mechanical damage. See: • “Removing and Installing the Valves in the Front Valve Housing” for 6120-6620 tractors. • “Removing and Installing the Valves in the Front Valve Housing” for 6820-6920S tractors.

NOT OK: Recondition as required and carry out an operational test.

If there are general problems with the transmission, see: • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions— Summary of References (for 6120-6620 tractors). • Reference 55-10-001, PowrQuad, PowrQuad Plus and AutoQuad Transmissions— Summary of References (for 6820-6920S tractors). – – –1/1

TM4726 (01NOV03)

212-55-7

6020 to 6920S tractors 022204

PN=1417

PowrQuad, PowrQuad Plus and AutoQuad Transmissions

212 55 8

TM4726 (01NOV03)

212-55-8

6020 to 6920S tractors 022204

PN=1418

Group 56

Drive Systems Problem with the Rear PTO

Symptoms:

• Slippage at rear PTO (when operating under load).

• Rear PTO fails to turn. • Rear PTO does not stop turning.

The symptoms indicate an electrical, hydraulic or mechanical fault at the rear PTO.

LX12234,0000C50 –19–12APR02–1/1

Diagnostics Additional references: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 256-20-001, Drive Systems — Summary of References. • Reference 56-30-001, Rear PTO—Summary of References for 6120-6620 tractors. • For 6820-6920S tractors, see Section 56, Group 30 in the relevant Repair manual. – – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: • If the rear PTO fails to turn or does not stop turning, GO TO 2. • GO TO: Diagnosis for slippage at rear PTO (when operating under load).

– – –1/1

TM4726 (01NOV03)

212-56-1

6020 to 6920S tractors 022204

PN=1419

212 56 1

Drive Systems 2 Checking the rear PTO switch

Access address BCU 07 :

OK: GO TO 3.

BCU 07 –– Status, Rear PTO Switch (S21)—Specification Rear PTO disengaged:—Status ............................................................................... XX01 Rear PTO engaged:—Status ................................................................................... XX10

NOT OK: • On tractors with Command Arm, GO TO: Circuit/harness test for rear PTO switch (with Command Arm). • On tractors without Command Arm, GO TO: Circuit/harness test for rear PTO switch.

212 56 2

– – –1/1

3 Checking the rear PTO solenoid

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14. In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Defective solenoid valve. Specifications for the rear PTO solenoid valve (Y04)—Specification Resistance check:—Resistance at solenoid coil .................................................................................... 10 - 12 ohms at 20°C Voltage with rear PTO disengaged:— Voltage .................................................................................................................... 0 volts Voltage with rear PTO engaged:— Voltage .................................................................................................................. 12 volts Amperage check with rear PTO engaged:—Amperage ......................................... 1 - 1.2 amps at 20°C and 12-volt rated voltage

OK: GO TO 4. NOT OK: GO TO: Circuit/harness test for rear PTO solenoid valve (Y04).

– – –1/1

4 Checking the rear PTO’s hydraulic system

Check pressure at the PTO brake and clutch. See reference 256-15-004, Checking Pressure at the Rear PTO and reference 256-15-006 , Drive Systems—Test Result Table. 1. Check pressure when PTO brake engages. 2. Check pressure when PTO clutch engages. 3. Check modulation.

OK: GO TO 5. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-56-2

6020 to 6920S tractors 022204

PN=1420

Drive Systems 5 Checking the rear PTO for signs of mechanical damage

Reasons why the rear PTO fails to turn, even although pressure exists: • • • • •

Solenoid valve is stuck. Modulation valve is stuck. Oil passages in PTO clutch are clogged. A mechanical fault at the PTO. A fault in the drive system.

NOT OK: Repair as needed and carry out an operational test. OK: Diagnosis completed.

Reasons why the rear PTO does not stop turning: • Defective disk brake. • Defective clutch piston. • Defective piston return spring.

212 56 3

See: • Reference 56-30-001 , Rear PTO—Summary of References for 6120-6620 tractors. • For 6820-6920S tractors, see Section 56, Group 30 in the relevant Repair manual.

– – –1/1

Diagnosis for slippage at rear PTO (when operating under load) The symptom indicates an hydraulic or mechanical fault at the PTO.

– – –1/1

1 Checking the amperage at the rear PTO solenoid valve

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14. In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Defective solenoid valve. Specifications for the rear PTO solenoid valve (Y04)—Specification Amperage check with rear PTO engaged:—Amperage ......................................... 1 - 1.2 amps at 20°C and 12-volt rated voltage

OK: GO TO 2. NOT OK: Check the ground connection of the solenoid valve. See:Circuit/harness test for rear PTO solenoid valve (Y04).

– – –1/1

2 Checking the rear PTO’s hydraulic system

Check pressure at the PTO brake and clutch. See reference 256-15-004, Checking Pressure at the Rear PTO and reference 256-15-006 , Drive Systems—Test Result Table. 1. Check pressure when PTO brake engages. 2. Check pressure when PTO clutch engages. 3. Check modulation.

OK: GO TO 3. NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-56-3

6020 to 6920S tractors 022204

PN=1421

Drive Systems 3 Causes of slippage at rear PTO (when operating under load)

• Wear at the PTO clutch. • Leakage or a clogged oil passage in the PTO clutch or at the valve.

OK: Diagnosis completed.

See: • Reference 56-30-001 , Rear PTO—Summary of References for 6120-6620 tractors. • For 6820-6920S tractors, see Section 56, Group 30 in the relevant Repair manual.

NOT OK: Repair as needed and carry out an operational test. – – –1/1

212 56 4

TM4726 (01NOV03)

212-56-4

6020 to 6920S tractors 022204

PN=1422

Drive Systems

Problem with the Front PTO

Symptom: • Front PTO fails to turn. • The front PTO speed fails to appear on the basic informator. • Front PTO does not stop turning.

• Slippage at PTO (when operating under load). • Unusual noises when in operation, or PTO engagement is rough. The symptoms inidcate an electrical, hydraulic or mechanical fault at the front PTO.

LX12234,0000C4F –19–01SEP02–1/1

Diagnosis Additional References: • Electrical information: Reference 210-15-001, General References - Summary. • Reference 256-20-001, Drive Systems — Summary of References. • “Front PTO — Reconditioning (Summary of References)” for 6120-6620 tractors. • “Front PTO — Reconditioning (Summary of References)” for 6820-6920S tractors. – – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: • If the front PTO fails to turn, or if it fails to appear on the basic informator: GO TO 2. • Front PTO will not stop turning: GO TO 3 • GO TO: Diagnosis for slippage at front PTO (when operating under load). • GO TO: Diagnosis for unusual noises when in operation, or PTO engagement is rough

– – –1/1

TM4726 (01NOV03)

212-56-5

6020 to 6920S tractors 022204

PN=1423

212 56 5

Drive Systems 2 Checking the front PTO settings in the BIF and BCU

Check the settings if the front PTO has just been installed for the first time, and every time one of these control units is replaced. Access addresses BCU 023, BCU 027, BCU 030 and BIF 060 or template BCU 900 Settings for Front PTO and check the input values.

OK: GO TO 3. NOT OK: Modify setting, confirm and carry out an operational test.

For input values, see: • Reference 245-BCU-001, Calibration and Input Addresses (Basic Functions). • Address BIF060 — Front PTO control function.

212 56 6

– – –1/1

3 Checking the front PTO switch

Access address BCU 07 :

OK: GO TO 4.

BCU 07 –– Status, Front PTO Switch (S06) —Specification Front PTO disengaged:—Status .............................................................................. 01XX Front PTO engaged:—Status ................................................................................... 10XX

NOT OK: • On tractors with Command Arm: GO TO: Circuit/harness test for front PTO switch S06 (with Command Arm). • On tractors without Command Arm: GO TO: Circuit/harness test for front PTO switch (S06). – – –1/1

4 Checking the front PTO solenoid

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14 . In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective

OK: GO TO 5. NOT OK: GO TO: Circuit/harness test for front PTO solenoid valve (Y01).

Test Data for Front PTO Solenoid Valve (Y01) —Specification Resistance check:—Solenoid resistance .......................... 10 - 12 ohms at 20° C (68° F) Voltage when front PTO is disengaged:—Voltage ............................................................................................. 0 volts Voltage when front PTO is engaged:— Voltage .................................................................................................................. 12 volts Amperage check with front PTO engaged:—Amperage ..................................... 1 -1.2 amps at 20°C (68° F) and 12 volts nominal voltage

– – –1/1

TM4726 (01NOV03)

212-56-6

6020 to 6920S tractors 022204

PN=1424

Drive Systems 5 Checking the front PTO’s hydraulic circuit

Check pressure at the PTO brake and clutch. See reference 256-15-005, Checking Pressure at the Front PTO and reference 256-15-006 , Drive Systems—Test Result Table.

OK: GO TO 6. NOT OK: See Reference 256-15-007 , Front PTO—Adjusting System Pressure. Repair as needed and carry out an operational test.

– – –1/1

6 Checking the front PTO for signs of mechanical damage

Reasons why the front PTO fails to turn, even although pressure exists: • • • • • •

Solenoid valve is stuck. Modulation valve is stuck. Oil passages in PTO clutch are clogged. Mechanical fault at the PTO. Defective disk pack. Fault in the drive system.

NOT OK: Repair as needed and carry out an operational test. OK: Diagnosis completed.

Reasons why the front PTO does not stop turning: • • • •

Defective Defective Defective Defective

disk brake. disk pack in disk brake. clutch piston. spring.

See: • “Front PTO — Reconditioning (Summary of References)” for 6120-6620 tractors. • “Front PTO — Reconditioning (Summary of References)” for 6820-6920S tractors.

– – –1/1

Diagnosis for symptom: Slippage at front PTO (when operating under load) The symptom indicates a hydraulic or mechanical fault at the PTO.

– – –1/1

1 Checking the amperage at the front PTO solenoid valve

NOTE: The amperage and voltage supply can only be checked with test wiring harness DFLX14 . In the following cases the BCU immediately interrupts the power supply: • Harness interrupted (disconnected or defective lead). • Solenoid valve defective Test Data for Front PTO Solenoid Valve (Y01) —Specification Amperage check with front PTO engaged:—Amperage ..................................... 1 -1.2 amps at 20°C (68° F) and 12 volts nominal voltage

OK: GO TO 2. NOT OK: Check Ground Connection of solenoid valve, see: Circuit/harness test for front PTO solenoid valve (Y01).

– – –1/1

TM4726 (01NOV03)

212-56-7

6020 to 6920S tractors 022204

PN=1425

212 56 7

Drive Systems 2 Checking the front PTO’s hydraulic circuit

Check pressure at the PTO brake and clutch. See reference 256-15-005, Checking Pressure at the Front PTO and reference 256-15-006 , Drive Systems—Test Result Table.

OK: GO TO 3. NOT OK: See Reference 256-15-007 , Front PTO—Adjusting System Pressure. Repair as needed and carry out an operational test.

212 56 8

– – –1/1

3 Causes of slippage at front PTO (when operating under load)

• Wear at the PTO clutch. • Leakage or a clogged oil passage in the PTO clutch or at the valve.

OK: Repair as needed and carry out an operational test.

See: • “Front PTO — Reconditioning (Summary of References)” for 6120-6620 tractors. • “Front PTO — Reconditioning (Summary of References)” for 6820-6920S tractors. – – –1/1

Diagnosis for symptom: Unusual Noise when running or rough front PTO engagement The symptom indicates a hydraulic or mechanical fault at the front PTO.

– – –1/1

1 Preliminary Checks

1.1

OK: GO TO 2.

Perform a visual inspection of the front-implement drive system:

NOT OK: Repair as needed and carry out an operational test.

❒ Check for visual signs of damage. ❒ Check that the front-implement drive is not touching any fixed components. ❒ Check the engine’s slow idle speed (900 rpm on tractors with front PTO). 1.2 • Check torque of the screws that hold on the front-implement drive. See “Specifications” in Section 56 of the relevant Repair manual. • For tractors with rough PTO engagement: Check the modulation valve. See “Reconditioning the PTO Modulating Valve” in Section 56 of the relevant Repair manual.

– – –1/1

TM4726 (01NOV03)

212-56-8

6020 to 6920S tractors 022204

PN=1426

Drive Systems 2 Checking the front PTO’s hydraulic circuit

Check pressure at the PTO brake and clutch. See reference 256-15-005, Checking Pressure at the Front PTO and reference 256-15-006 , Drive Systems—Test Result Table.

OK: Check whether the front PTO’s bearings are worn. NOT OK: See Reference 256-15-007 , Front PTO—Adjusting System Pressure. Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-56-9

6020 to 6920S tractors 022204

PN=1427

212 56 9

Drive Systems

212 56 10

TM4726 (01NOV03)

212-56-10

6020 to 6920S tractors 022204

PN=1428

Group 60

Steering and Brakes Problem with the Brakes

Symptoms: • Brake pedals drop to the floor.

• Pressure cannot be sustained. • More force required on brake pedal on 40-km/h tractors with AutoPowr/IVT transmission.

LX12234,0000C57 –19–01SEP02–1/1

Diagnosis Additional References: • Reference 260-20-001, Steering and Brakes, Operation - Summary of References. • Reference 260-15-060, Bleeding the Brakes (Brake Valve, Power-Fill Brakes and MFWD and Disc Brake). • For specifications, see Section 60 in the relevant Repair manual.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of Diagnostic Trouble Codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: • If there is a problem with the braking on 40-km/h tractors with AutoPowr/IVT transmission: GO TO 2.• all other: GO TO 3.

– – –1/1

TM4726 (01NOV03)

212-60-1

6020 to 6920S tractors 022204

PN=1429

212 60 1

Steering and Brakes 2 Checking the setting for front-wheel drive axle and air brakes at address UIC 32

Access address UIC 32 :

OK: GO TO 3

UIC 32 –– Input, front-wheel drive axle and air brakes —Specification Tractor with air brakes and braked front-wheel drive axle:—Status ....................................................................................... Tractor with air brakes and without braked front-wheel drive axle:—Status ........................................................................... Tractor without air brakes and with braked front-wheel drive axle:—Status ........................................................................... Tractor without air brakes and without braked front-wheel drive axle:—Status ...........................................................................

NOT OK: Modify setting, confirm and carry out an operational test.

0 2 1 3

212 60 2

– – –1/1

3 Performing an operational check

For operational check, see: Reference 260-10-020, Brake Check.

OK: Test completed. NOT OK: GO TO 4.

– – –1/1

4 Checking the brake system

See Reference 260-15-050, Checking the Brake System

OK: Test completed.

For bleeding, see: Reference 260-15-060, Bleeding the Brakes (Brake Valve, Power-Fill Brakes and MFWD and Disc Brake).

NOT OK: Repair as needed and carry out an operational test. – – –1/1

Problem with the Steering

Symptoms:

• Steering function is slow or poor.

• Steering is stiff.

LX12234,0000C59 –19–17APR02–1/1

Diagnostics Additional references: • Reference 260-20-001, Steering and Brakes, Operation - Summary of References. • For specifications, see Section 60 in the relevant Repair manual.

– – –1/1

TM4726 (01NOV03)

212-60-2

6020 to 6920S tractors 022204

PN=1430

Steering and Brakes 1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: GO TO 2.

– – –1/1

2 Performing an operational check

For operational check, see: Reference 260-10-010, Steering Check.

OK: Test completed. NOT OK: GO TO 3.

– – –1/1

3 Checking the steering system

See: Reference 260-15-040 , Checking the Leaf Springs on the Steering Valve.

OK: GO TO 4. NOT OK: Repair as needed and carry out an operational test. – – –1/1

4 Checking the hydraulic system

See: • Reference 270-10-010 , Hydraulic System - Load Check. • Reference 270-15-012, Checking the PFC Hydraulic System. • Reference 270-15-020, Checking the PC Hydraulic System.

OK: Test completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

Problem with the Handbrake

Symptoms:

• Problem with the operation of the handbrake.

LX12234,0000C5A –19–17APR02–1/1

TM4726 (01NOV03)

212-60-3

6020 to 6920S tractors 022204

PN=1431

212 60 3

Steering and Brakes Diagnostics Additional references: • Reference 260-20-001, Steering and Brakes, Operation - Summary of References. • For specifications, see Section 60 in the relevant Repair manual.

212 60 4

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: GO TO 2.

– – –1/1

2 Checking and adjusting the handbrake

See Reference 260-15-080 , Handbrake Checks.

OK: Test completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

212-60-4

6020 to 6920S tractors 022204

PN=1432

Group 70

Hydraulic System Problem with the Rockshaft

Rockshaft is not operating properly or not functioning at all.

LX12234,0000C5D –19–17APR02–1/1

Diagnostics Additional references: • Reference 270-20-001, PFC Hydraulic System — Summary of References. • Reference 270-20-002, PC Hydraulic System — Summary of References. • Reference 245-BCU-002 , Calibration and Input Addresses, Hitch Control. • Address BCU 122 — Calibration of Hitch Control, Section 245, Group BCU in the Technical Manual. • For specifications, see Section 70, Group 20 in the relevant Repair manual.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: GO TO 2.

– – –1/1

2 Preliminary hydraulic system test

See reference 250-05-001 , Introductory Checks for Transmission and Hydraulic Diagnosis.

OK: GO TO 3. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

212-70-1

6020 to 6920S tractors 022204

PN=1433

212 70 1

Hydraulic System 3 Performing an operational check

See Reference 270-10-020 , Hitch Control - Operational Check.

OK: Diagnosis completed. NOT OK: If no diagnostic trouble codes were saved during the operational check: GO TO 4.

212 70 2

– – –1/1

4 Checking the pressure and discharge valves

See Reference 270-15-132 , Rockshaft Valve — Checking the Depth to Which Pressure and Discharge Valves are Screwed In.

OK: GO TO 5. NOT OK: Adjust the pressure and discharge valves, and calibrate the hitch control. – – –1/1

5 Checking the stepper motor and rockshaft valve

See: • Reference 270-15-110, Checking the Stepper Motor and Rockshaft Valve. • Reference 270-15-130, Rockshaft Valve — Checking for Leaks. • Reference 270-15-131, Rockshaft Valve — Checking the Pressure Relief Valve.

OK: GO TO 6. NOT OK: Repair as needed and calibrate the rockshaft control. – – –1/1

6 Checking the hydraulic system

See: • Reference 270-10-010 , Hydraulic System - Load Check. • Reference 270-15-012, Checking the PFC Hydraulic System. • Reference 270-15-020, Checking the PC Hydraulic System.

OK: Test completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

Problem with the Rockshaft’s Remote Control

Rockshaft is not operating properly or not functioning at all.

LX12234,0000C5F –19–17APR02–1/1

TM4726 (01NOV03)

212-70-2

6020 to 6920S tractors 022204

PN=1434

Hydraulic System Diagnostics Additional references: • Reference 270-20-001, PFC Hydraulic System — Summary of References. • Reference 270-20-002, PC Hydraulic System — Summary of References. • Reference 245-BCU-002 , Calibration and Input Addresses, Hitch Control. • Address BCU 122 — Calibration of Hitch Control, Section 245, Group BCU in the Technical Manual. • Operational check for the r.h. remote control switch (S23), see Section 245, Group BCU in the Technical Manual. • Operational check for the l.h. remote control switch (S68), see Section 245, Group BCU in the Technical Manual. • For specifications, see Section 70, Group 20 in the relevant Repair manual.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored: GO TO 2.

– – –1/1

2 Checking the settings of the remote control switch at the BCU

Access address BCU 167 .

OK: GO TO 3.

For input values, see address BCU 167 — Input Address for Rockshaft Components, Section 245, Group BCU in the Technical Manual.

NOT OK: Modify setting, confirm and carry out an operational test. – – –1/1

3 Checking the pressure and discharge valves

See Reference 270-15-132 , Rockshaft Valve — Checking the Depth to Which Pressure and Discharge Valves are Screwed In.

OK: Calibrate the hitch control. NOT OK: Adjust the pressure and discharge valves, and calibrate the hitch control.

– – –1/1

TM4726 (01NOV03)

212-70-3

6020 to 6920S tractors 022204

PN=1435

212 70 3

Hydraulic System

212 70 4

TM4726 (01NOV03)

212-70-4

6020 to 6920S tractors 022204

PN=1436

Group 90

Operator’s Cab Problem with operator’s seat MSG95

• • • •

Weight and height cannot be adjusted upwards. Weight and height cannot be adjusted downwards. Suspension collapses after a short time. Suspension can be lowered, but does not pump up from lowest position. • Suspension can be pumped up to its highest position, but then no air comes out. • Suspension can be pumped up and lowered, but it does not return to its original position.

212 90 1

LX26156,0000086 –19–16APR02–1/1

Diagnostics Additional references: • See specifications in Section 90, Group 20 in the relevant Repair manual.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

2 Checking that the operator’s seat functions properly

Reference 290-15-080 , MSG95 Operator’s s Seat Checks

OK: Test completed. NOT OK: Repair as needed and carry out an operational test. – – –1/1

TM4726 (01NOV03)

212-90-1

6020 to 6920S tractors 022204

PN=1437

Operator’s Cab

Problem with the Air-Conditioning System

Air-conditioning system is not operating properly or not functioning at all.

212 90 2

LX24887,0000AB3 –19–15APR02–1/1

Diagnostics CAUTION: Comply with safety regulations when working on the air-conditioning system. See Air-Conditioning System (Summary of References) Additional references: Electrical information: Reference 210-15-001, General References - Summary. Summary of References, Air-Conditioning and Heater Summary of References Reference 290-20-001, Operation of Air-Conditioner/Heater/Air Vents Reference 240-10-011, SE10-Fan and Air Conditioner Reference 240-26-261, W26 — Wiring Harness - Fan and Air Conditioner. Before reconditioning, see Section 90, Group 10 in the relevant Repair manual.

– – –1/1

1 Accessing diagnostic trouble codes

NOTE: Diagnosing the trouble codes associated with this observable symptom may allow it to be rectified; for this reason, diagnose these codes first. NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing Addresses and Diagnostic Trouble Codes.

OK: For information on how to process the relevant diagnostic trouble codes, see Section 211. NOT OK: If no diagnostic trouble code associated with the symptom is stored, GO TO 2.

– – –1/1

TM4726 (01NOV03)

212-90-2

6020 to 6920S tractors 022204

PN=1438

Operator’s Cab 2 Operational check and visual check

2.1 - Operational check:

OK: GO TO 2.2

Do an operational check. See Reference 290-10-002

NOT OK: Repair as needed and carry out an operational test.

2.2 - Visual check:

OK: GO TO 3

• • • • • • • • •

NOT OK: Repair as needed and carry out an operational test.

Check tension of belt (compressor). Cab air filters must be clean. Air ducts must not be obstructed. Check that lines are not damaged. Hoses must not be kinked or trapped. The condenser and evaporator must not be dirty. All the electrical cables must be OK. Note any unusual noises that occur when in operation. Check for oil stains at the condenser, compressor and fittings (leaks).

212 90 3

– – –1/1

3 Checking the air-conditioning system

Check the air-conditioning system. See Reference 290-15-065 , Explanation of Checks

NOT OK: Repair as needed and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

212-90-3

6020 to 6920S tractors 022204

PN=1439

Operator’s Cab

212 90 4

TM4726 (01NOV03)

212-90-4

6020 to 6920S tractors 022204

PN=1440

Section 213

SYSTEM DIAGNOSTICS Contents Page

Group 45—Electronics 29-bit CAN BUS - Check (Tractors with Operator’s Cab) . . . . . . . . . . . . . . . . . . . . . .213-45-1 Circuit test. . . . . . . . . . . . . . . . . . . . . . . . . . . .213-45-1 29-bit CAN BUS - Check (Tractors with Open Operator’s Station and SE Tractors with Stage I Engines according to 97/68/EC) . . .213-45-7 Circuit test. . . . . . . . . . . . . . . . . . . . . . . . . . . .213-45-7 29-bit CAN BUS - Check (Tractors with Open Operator’s Station and SE Tractors with Stage II Engines according to 97/68/EC; Level 12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213-45-11 Circuit test. . . . . . . . . . . . . . . . . . . . . . . . . . .213-45-12 11-bit CAN BUS - Check. . . . . . . . . . . . . . . .213-45-15 Circuit test. . . . . . . . . . . . . . . . . . . . . . . . . . .213-45-15 JDLink System Check . . . . . . . . . . . . . . . . . .213-45-20 Problem with JDLink Machine Messenger . . .213-45-20

TM4726 (01NOV03)

213-1

213

6020 to 6920S tractors 022204

PN=1

Contents

213

TM4726 (01NOV03)

213-2

6020 to 6920S tractors 022204

PN=2

Group 45

Electronics 29-bit CAN BUS - Check (Tractors with Operator’s Cab) General information: Data transfer at the 29-bit CAN BUS takes place via the communication lines CAN+ (lead 934) and CAN(lead 935). The CAN communication lines are further protected by a live wire (lead 932) and a ground wire (lead 930) (these are the screen lines). These lines are twisted together to reduce electro-magnetic interference. Terminating resistors (A14 and A15 or A61 and A62) are located at the beginning and end of the CAN-BUS communication lines. The terminating resistors are required to reduce faults in the communication lines. The terminating resistors A14 and A15 are of a different design: The active terminator A14 has 6 pins and the passive terminator A15 has 4 pins. The terminating resistors A61 and A62 are of the same design. By assigning the pins differently, they are used either as a passive terminator (A61, 4 leads) or an active terminator (A62, 6 leads).

BUS carrier voltage of 2.5 volts. • the CAN BUS screen lines and thus the passive terminator (A15 or A61) with 12 volts. In addition to the power supply via the active terminating resistor, each individual control unit sends a transmitting voltage on the CAN BUS.

NOTE: When ignition is OFF, the 29-bit CAN BUS does not go dead. When the ignition is OFF, the basic informator (BIF) sends a voltage of approx. 0.6 volts on the communication lines (CAN+ and CAN-) of the 29-bit CAN BUS (fuse F04/10).

213 45 1

Instructions for diagnosis: • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 240-10-001, Sub-System Diagnostics (Cab) — Summary of References

The active terminator (A14 or A62) also supplies: • the CAN BUS communication lines with the CAN

LX12234,0000C15 –19–01NOV03–1/1

Circuit test

– – –1/1

TM4726 (01NOV03)

213-45-1

6020 to 6920S tractors 022204

PN=1443

Electronics 1 Check the 29-bit CAN BUS voltage

1.1 - CAN BUS voltage:

OK: GO TO 1.2 1. Ignition ON. 2. Use multimeter JT05791A to check the voltage at service plug X571:

LX1025890 –UN–06DEC01

X571 9-pin service plug (CAN-BUS)

29-bit CAN BUS voltage (service plug X571)— Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ................................... 2.5 - 2.9 volts CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ................................... 2.1 - 2.5 volts

NOT OK: If the measured CAN-BUS voltage is less than it should be: GO TO 2. NOT OK: If the measured CAN-BUS voltage is more than it should be: Check the communication lines for a shorted circuit: • CAN+ (lead 934) • CAN- (lead 935).

IMPORTANT: For the 29-bit CAN BUS to operate properly, the voltage measured by multimeter JT05791A at CAN+ must be at least 0.1 volts more than the voltage at CAN-.

213 45 2 1.2 - Screening voltage:

OK: Test completed.

NOTE: The passive terminator (A15 or A61) is supplied with voltage via the screen lines.

NOT OK: Check the screen lines: • Positive (lead 932) • Ground (lead 930).

LX1025902 –UN–20SEP02

X614 6-pin plug for CAN BUS terminator (29-bit)

LX1024126 –UN–09JUN00

X227 7-pin plug for CAN BUS terminator (29-bit)

1. Pull plug X227 or X614, leading to the passive terminator (A15 or A61), out of cab roof harness (W19). 2. Use multimeter JT05791A to check the voltage at plug X227 or X614: CAN BUS screen (plug X227)—Specification between pin C (lead -930) and pin F (lead +932):—Voltage ........................................................................................... 12 volts CAN BUS screen (plug X614)—Specification between pin A (lead -930) and pin B (lead +932):—Voltage ........................................................................................... 12 volts

– – –1/1

TM4726 (01NOV03)

213-45-2

6020 to 6920S tractors 022204

PN=1444

Electronics 2 Checking the CAN-BUS carrier voltage

NOTE: The main supply of the 29-bit CAN BUS is via the active terminating resistor A14 or A62 (2.5 volt carrier voltage). If there is a problem at the main supply (blown fuse, failed diode or terminating resistor), the CAN BUS is put out of action, although it is not necessarily dead. Every control unit sends an additional transmitting voltage on the CAN BUS. If all the control units are disconnected, the pure carrier voltage (2.5 volts) is sent on the CAN BUS. 2.1 - Preliminary test: Check the power supply to the active terminating resistor (A14 or A62): • Fuse F04/13. • Diode K09/2. 2.2 - Check the carrier voltage: Summary of control units Control unit ATC

Fuse

Control unit for ClimaTrac (automatic air-conditioning)

213 45 3

F05/1 (ELX) and F05/14 (BAT)

BCU

Basic control unit

F03/1 (ELX)

BIF

Basic informator

F04/9 (ELX) and F04/10 (BAT)

ECU

Engine control unit (Level 1)

F04/1 (IGN)

ECU

Engine control unit (Level 4 and Level 11)

F04/1 (IGN) and F04/2 (BAT)

ECU

Engine control unit (Level 12)

F03/2 (ELX) F04/2 (BAT) F04/1 (IGN)

EPC

Control unit for PowrQuad Plus and AutoQuad transmissions

F04/15 (ELX) and F04/16 (BAT)

PLC

Park lock controller

F05/3 (ELX) and F05/4 (BAT).

PRF

Performance monitor

F04/12 (ELX)

SFA

Control unit for front-wheel drive axle and cab suspension

F03/8 (BAT) and F04/9 (ELX)

SIC

Controller for the E-SCVs / E-ICVs

F03/13 (BAT) and F03/15 (ELX)

SSU

AutoTrac (steering system) control unit

F06/14 (BAT) and F06/15 (ELX)

TCU

Control unit for AutoPowr/IVT transmission

F04/15 (ELX) and F05/5 (BAT)

TEC

Control unit for tractor equipment interface

F05/11 (ACC)

UIC

User interface controller

F04/14 (ELX)

1.

– – –1/2

TM4726 (01NOV03)

213-45-3

6020 to 6920S tractors 022204

PN=1445

Electronics OK: GO TO 3. Ignition OFF. 2. Disconnect all the control units on the tractor from the 29-bit CAN BUS (pull out their fuses): 3. Ignition ON. 4. Use multimeter JT05791A to check the voltage at service plug X571:

LX1025890 –UN–06DEC01

X571 9-pin service plug (CAN-BUS)

NOT OK: GO TO 4.

29-bit CAN BUS carrier voltage (at service plug X571)—Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ..................... 2.5 volts (+/- 0.1 volts) CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ..................... 2.5 volts (+/- 0.1 volts)

213 45 4 –19– –2/2

3 Isolate the defective circuit

NOTE: Reconnect each control unit in turn to the 29-bit CAN BUS. Every time you reconnect a control unit, measure the CAN-BUS voltage again. 1. Ignition ON. 2. Reconnect all the control units one after the other to the 29-bit CAN BUS by putting in their fuses. 3. Every time you reconnect a control unit, use multimeter JT05791A to check the voltage at plug X571: 29-bit CAN BUS voltage (service plug X571)—Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ................................................................................ 2.5 - 2.9 volts CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ................................................................................ 2.1 - 2.5 volts

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. NOT OK: Repair the relevant circuit of the control unit as needed and repeat the test.

– – –1/1

TM4726 (01NOV03)

213-45-4

6020 to 6920S tractors 022204

PN=1446

Electronics 4 Check communication lines 934 and 935

4.1 - Check the communication lines for continuity and internal shorts:

OK: GO TO 4.2.

1.

NOT OK: Check the circuit of the communication lines: • CAN+ (lead 934). • CAN- (lead 935).

This test must be carried out with the power off. • Ignition OFF. • Pull the BAT fuse (F04/10) off the basic informator.

LX1025890 –UN–06DEC01

2. Pull out terminating resistor A14 or A62 on cowl harness W9 and replace it with special tool DFLX12 (see Reference 299-05-015, DFLX12—Special Tool for 11-bit and 29-bit CAN BUS). 3. Check the communication lines for continuity and internal shorts (this test cannot be used to check the communication lines for grounds or shorts to external circuits!): Use multimeter JT05791A to check the resistance at service plug X571: 213 45 5

29-bit CAN BUS check (service plug X571)— Specification between pin C (CAN+, lead 934) and pin D (CAN-, lead 935):— Resistor ............................................... 120 ohms (+/- 1%)

NOTE: Special tool—DFLX12 takes a resistance of 120 ohms (+/- 1%). With the CAN BUS main harness plugged in (main line/connections plugged into the various harnesses), this test can be carried out at every CAN BUS interface (i.e. at every control unit connection).

4.2 - Check the communication lines for a short to ground:

OK: No short to ground: GO TO 5.

Check leads 934 and 935 for a short to ground at service plug X571. NOT OK: Repair as needed and repeat the test.

– – –1/1

TM4726 (01NOV03)

213-45-5

6020 to 6920S tractors 022204

PN=1447

Electronics 5 Check the power supply to the active terminating resistor (A14 or A62)

1.

OK: Replace the terminating resistor (A14 or A62) and repeat the test. NOT OK: Check the power supply circuit (fuse F04/13, diode K09/2): • Positive (lead 994). • Ground (lead 050) via collective ground point XGND6 to XGND43. LX1025902 –UN–20SEP02

X615 6-pin plug for CAN BUS terminator (29-bit) 213 45 6

LX1024126 –UN–09JUN00

X270 7-pin plug for CAN BUS terminator (29-bit) Pull plug X270 or X615, leading to the active terminator (A14 or A62), out of cowl harness (W9). 2. Use multimeter JT05791A to check the power supply at plug X270: Power supply to the active terminating resistor (A14) at plug X270—Specification between pin D (lead 994) and pin E (lead 050):—Voltage ............................................................................................. 12 volts Power supply to the active terminating resistor (A62) at plug X615—Specification between pin A (lead 994) and pin C (lead 050):—Voltage ............................................................................................. 12 volts

– – –1/1

TM4726 (01NOV03)

213-45-6

6020 to 6920S tractors 022204

PN=1448

Electronics

29-bit CAN BUS - Check (Tractors with Open Operator’s Station and SE Tractors with Stage I Engines according to 97/68/EC) General information: Data transfer at the 29-bit CAN BUS takes place via the communication lines CAN+ (lead 934) and CAN- (lead 935). These lines are twisted together to reduce electro-magnetic interference. Power supply to communication leads 934 and 935 is via the basic control unit BCU (fuse F107). At the end of the CAN BUS communication lines (close to the 9-pin service plug X571) is an 120-ohm terminating resistor (R19). This terminating resistor is required to reduce faults in the communication lines.

213 45 7

Instructions for diagnosis: • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 240-10A-001, Sub-System Diagnostics (Open Operator’s Station) — Summary of References. • Reference 240-10B-001, Sub-System Diagnostics (SE-Tractor) — Summary of References.

LX12234,0000CB5 –19–04AUG03–1/1

Circuit test

– – –1/1

1 Check the 29-bit CAN BUS voltage

1. Ignition ON. 2. Use multimeter JT05791A to check the voltage at service plug X571: 29-bit CAN BUS voltage (service plug X571)—Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ................................................................................ 2.5 - 3.1 volts CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ................................................................................ 1.9 - 2.5 volts

IMPORTANT: For the 29-bit CAN BUS to operate properly, the voltage measured by multimeter JT05791A at CAN+ must be at least 0.1 volts more than the voltage at CAN-.

OK: GO TO 2. NOT OK: If the measured CAN-BUS voltage is less than it should be: GO TO 3. NOT OK: If the measured CAN-BUS voltage is more than it should be: Check the communication lines for a shorted circuit: • CAN+ (lead 934). • CAN- (lead 935). – – –1/1

TM4726 (01NOV03)

213-45-7

6020 to 6920S tractors 022204

PN=1449

Electronics 2 Check terminator R19

Use multimeter JT05791A to check the resistance of terminator R19 at service plug X571 (cab wiring harness W08): Terminator R19—Specification CAN+, between pin C (lead 934) and pin D (lead 935):—Resistor ..................................................................................... 120 ohms

OK: Test completed. NOT OK: Replace terminator R19 (on tractors with open operator’s station, near plug X483/1 basic control unit (BCU) and on SE tractors, near the service plug) and carry out an operational test.

– – –1/1

213 45 8

3 Preliminary test for 29-bit CAN BUS

• Check battery voltage. See "Battery Checks", Section 240, Group 15. • Check the power supply to the 29-bit CAN BUS communication lines (934 and 935): – Check fuse F107 (10A). • Check power supply to service plug X571. – Check fuse F118 (on tractors with open operator’s station). – Check fuse F116 (10A) (on SE tractors). • Check the power supply for the electronics (ELX circuit, lead 072): – Fuse F102 (30A). – Check ELX relay K101, see component testing “Relay for power supply to the electronics (K01/2)” – Diode K108 (1 amp).

OK: GO TO 4. NOT OK: Recondition as required and carry out an operational test.

– – –1/1

TM4726 (01NOV03)

213-45-8

6020 to 6920S tractors 022204

PN=1450

Electronics 4 Check the connection of Basic Control Unit (BCU) (W08 — cab wiring harness )

Most wiring harness problems are caused by connector problems (contacts loose/bad/slid back) and/or bad ground connections. • Check the power supply. • Check the 29-bit CAN BUS communication lines (934/935). • Check the connections at the plug and control unit for loose, widened, slid-back or corroded contacts. For component location and pin arrangement, see wiring harness W08. Basic control unit (BCU) with 2 connectors: (on tractors up to serial no. 398790). X483/2 45-pin plug for basic control unit (BCU)— Specification Power supply:—Lead 571 (positive, ELX) ...................................... 12 volts at pin 23 Lead 050 .................................................. Ground at pin 1 213 45 9

LX1025886 –UN–28NOV01

X483/2 45-pin plug for basic control unit (BCU) – – –1/2

TM4726 (01NOV03)

213-45-9

6020 to 6920S tractors 022204

PN=1451

Electronics X483/1 68-pin plug for basic control unit (BCU)— Specification 29-bit CAN BUS communication lines:— CAN+ (lead 934) ................................................. at pin 44 CAN- (lead 935) .................................................. at pin 21 Basic control unit (BCU) with 3 connectors: (on tractors from serial no. 398791).

OK: Check communication lines 934 and 935 between the basic control unit (BCU) and service plug X571. NOT OK: Repair the faulty line connection as needed, then access control unit.

213 45 10 LX1025887 –UN–28NOV01

X483/1 68-pin plug for basic control unit (BCU) X616/2 48-pin plug for basic control unit (BCU)— Specification Power supply:—Lead 112 (positive, BAT) .................................... 12 volts at pin 2L1 Lead 882 (positive, ELX) ................... 12 volts at pin 2M1 Lead 050 ..................................... Ground at pins 2L2 and 2M2 29-bit CAN BUS communication lines:— CAN+ (lead 934) ............................................... at pin 2A1 CAN- (lead 935) ................................................ at pin 2B1 LXS50046 –UN–17APR03 –19– –2/2

TM4726 (01NOV03)

213-45-10

6020 to 6920S tractors 022204

PN=1452

Electronics

29-bit CAN BUS - Check (Tractors with Open Operator’s Station and SE Tractors with Stage II Engines according to 97/68/EC; Level 12) General information: Data transfer at the 29-bit CAN BUS takes place via the communication lines CAN+ (lead 934) and CAN- (lead 935). The CAN communication lines are further protected by a live wire (lead 932) and a ground wire (lead 930) (these are the screen lines). These lines are twisted together to reduce electro-magnetic interference. Terminating resistors (A61 and A62) are located at the beginning and end of the CAN-BUS communication lines. The terminating resistors are required to reduce faults in the communication lines. The terminating resistors A61 and A62 are of the same design. By assigning the pins differently, they are used either as a passive terminator (A61, 4 leads) or an active terminator (A62, 6 leads).

213 45 11

The active terminator (A62) also supplies: • the CAN BUS communication lines with the CAN BUS carrier voltage of 2.5 volts. • the CAN BUS screen lines and thus the passive terminator (A61) with 12 volts. In addition to the power supply via the active terminating resistor, each individual control unit sends a transmitting voltage on the CAN BUS. Instructions for diagnosis: • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 240-10A-001, Sub-System Diagnostics (Open Operator’s Station) — Summary of References. • Reference 240-10B-001, Sub-System Diagnostics (SE-Tractor) — Summary of References.

LX12234,0000C79 –19–01NOV03–1/1

TM4726 (01NOV03)

213-45-11

6020 to 6920S tractors 022204

PN=1453

Electronics Circuit test

– – –1/1

1 Check the 29-bit CAN BUS voltage

1.1 - CAN BUS voltage:

OK: GO TO 1.2 1. Ignition ON. 2. Use multimeter JT05791A to check the voltage at service plug X571:

213 45 12

LX1025890 –UN–06DEC01

X571 9-pin service plug (CAN-BUS)

29-bit CAN BUS voltage (service plug X571)— Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ................................... 2.5 - 2.9 volts CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ................................... 2.1 - 2.5 volts

NOT OK: If the measured CAN-BUS voltage is less than it should be: GO TO 2. NOT OK: If the measured CAN-BUS voltage is more than it should be: Check the communication lines for a shorted circuit: • CAN+ (lead 934). • CAN- (lead 935).

IMPORTANT: For the 29-bit CAN BUS to operate properly, the voltage measured by multimeter JT05791A at CAN+ must be at least 0.1 volts more than the voltage at CAN-.

1.2 - Screening voltage:

OK: GO TO 2.

NOTE: The passive terminator (A61) is supplied with voltage via the screen lines.

NOT OK: Check the screen lines: • Positive (lead 932). • Ground (lead 930).

1. Pull plug X614, leading to passive terminator (A61, 4 leads), out of wiring harness W08. 2. Use multimeter JT05791A to check the voltage at plug X614: CAN BUS screen (plug X614)—Specification between pin A (lead -930) and pin B (lead +932):— Voltage .................................................................. 12 volts

IF OK: Screen lines 930 and 932 are OK: Replace the active terminator (A62) and repeat the test.

LX1025902 –UN–20SEP02

X614 6-pin plug for CAN BUS terminator (29-bit)

– – –1/1

TM4726 (01NOV03)

213-45-12

6020 to 6920S tractors 022204

PN=1454

Electronics 2 Checking the CAN-BUS carrier voltage

NOTE: The main supply of the 29-bit CAN BUS is via the active terminating resistor A62 (2.5 volt carrier voltage). If there is a problem at the main supply (blown fuse or terminating resistor), the CAN BUS is put out of action, although it is not necessarily dead. Every control unit sends an additional transmitting voltage on the CAN BUS. If all the control units are disconnected, the pure carrier voltage (2.5 volts) is sent on the CAN BUS.

OK: • No diagnostic trouble code is saved that indicates a problem in the CAN BUS: Diagnosis completed.

Check the power supply to the active terminating resistor (A62, 6 leads):

• Diagnostic trouble codes are saved that indicate a problem in the CAN BUS: GO TO 3.

• Fuse F104.

NOT OK: GO TO 4.

2.1 - Preliminary test:

2.2 - Check the carrier voltage: Summary of control units Control unit

Fuse

BCU

Basic control unit

F107 (ELX) F105 (BAT)

ECU

Engine control unit (Level 12) for tractors with open operator’s station

F104 (ELX) F21/2 (BAT) F21/3 (IGN)

ECU

Engine control unit (Level 12) for SE-tractors

F104 (ELX) F025/1 (BAT, 20A) F025/2 (IGN, 10A)

213 45 13

1. Ignition OFF. 2. Disconnect all the control units on the tractor from the 29-bit CAN BUS (pull out their fuses): 3. Ignition ON. 4. Use multimeter JT05791A to check the voltage at service plug X571:

LX1025890 –UN–06DEC01

X571 9-pin service plug (CAN-BUS)

29-bit CAN BUS carrier voltage (at service plug X571)—Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ..................... 2.5 volts (+/- 0.1 volts) CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ..................... 2.5 volts (+/- 0.1 volts)

– – –1/1

3 Isolate the defective circuit

NOTE: Reconnect each control unit in turn to the 29-bit CAN BUS. Every time you reconnect a control unit, measure the CAN-BUS voltage again. 1. Ignition ON. 2. Reconnect all the control units one after the other to the 29-bit CAN BUS by putting in their fuses. 3. Every time you reconnect a control unit, use multimeter JT05791A to check the voltage at plug X571: 29-bit CAN BUS voltage (service plug X571)—Specification CAN+, between pin C (lead 934) and pin A (lead 050):—Voltage ................................................................................ 2.5 - 2.9 volts CAN-, between pin D (lead 935) and pin A (lead 050):—Voltage ................................................................................ 2.1 - 2.5 volts

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. NOT OK: Repair the relevant circuit of the control unit as needed and repeat the test.

– – –1/1

TM4726 (01NOV03)

213-45-13

6020 to 6920S tractors 022204

PN=1455

Electronics 4 Check communication lines 934 and 935

4.1 - Check the communication lines for continuity and internal shorts:

OK: GO TO 4.2.

1.

NOT OK: Check the circuit of the communication lines: • CAN+ (lead 934). • CAN- (lead 935).

This test must be carried out with the power off. • Ignition OFF.

LX1025890 –UN–06DEC01

2. Pull active terminator (A62, 6 leads) out of wiring harness W08 and replace it with special tool DFLX12 (see Reference 299-05-015, DFLX12—Special Tool for 11-bit and 29-bit CAN BUS). 3. Check the communication lines for continuity and internal shorts (this test cannot be used to check the communication lines for grounds or shorts to external circuits!): Use multimeter JT05791A to check the resistance at service plug X571: 29-bit CAN BUS check (service plug X571)— Specification between pin C (CAN+, lead 934) and pin D (CAN-, lead 935):— Resistor ............................................... 120 ohms (+/- 1%)

213 45 14

4.2 - Check the communication lines for a short to ground:

OK: No short to ground: GO TO 5.

Check leads 934 and 935 for a short to ground at service plug X571. NOT OK: Repair as needed and repeat the test.

– – –1/1

5 Check the power supply to the active terminating resistor (A62)

1. Pull plug X615, leading to active terminator (A62, 6 leads), out of wiring harness W08 (on SE tractors located near diagnostic connector and on tractors with operator’s station located near BCU plug X483/1). 2. Use multimeter JT05791A to check the power supply at plug X615:

LX1025902 –UN–20SEP02

Power supply to the active terminating resistor (A62) at plug X615—Specification between pin A (lead 973) and pin C (lead 050):— Voltage .................................................................. 12 volts

OK: Replace the terminating resistor (A62) and repeat the test. NOT OK: Check the power supply circuit (fuse F104): • Positive (lead 973). • Ground (lead 050) to XGND2.

X615 6-pin plug for CAN BUS terminator (29-bit)

– – –1/1

TM4726 (01NOV03)

213-45-14

6020 to 6920S tractors 022204

PN=1456

Electronics

11-bit CAN BUS - Check General information: Data transfer at the 11-bit CAN BUS takes place via the communication lines CAN+ (lead 944) and CAN(lead 945). The CAN communication lines are further protected by a live wire (lead 942) and a ground wire (lead 940) (these are the screen lines). These lines are twisted together to reduce electro-magnetic interference. Terminating resistors (A17 and A18) are located at the beginning and end of the CAN-BUS communication lines. The terminating resistors are required to reduce faults in the communication lines. The terminating resistors A17 and A18 are of a different design: The active terminator A17 has 6 pins and the passive terminator A18 has 4 pins.

The active terminator (A17) also supplies: • the CAN BUS communication lines with the CAN BUS carrier voltage of 2.5 volts. • the CAN BUS screen lines and thus the passive terminator (A18) with 12 volts. Instructions for diagnosis: • Reference 245-20-001, Data BUS Systems — Summary of References. • Reference 240-10-001, Sub-System Diagnostics (Cab) — Summary of References 213 45 15

LX12234,0000C16 –19–01SEP02–1/1

Circuit test

– – –1/1

TM4726 (01NOV03)

213-45-15

6020 to 6920S tractors 022204

PN=1457

Electronics 1 Check the 11-bit CAN BUS voltage

1.1 - CAN BUS voltage:

OK: GO TO 1.2 1. On the right-hand side of the main frame underneath the panel for the E-ICV, pull plug (X258; leading to passive terminating resistor A18) out of stepper motor harness W32. 2. Ignition ON. 3. Use multimeter JT05791A to check the voltage at plug X258: 11-bit CAN BUS voltage—Specification CAN+, between pin B (lead 944) and pin C (lead 940):—Voltage ................................... 2.5 - 2.9 volts CAN-, between pin G (lead 945) and pin C (lead 940):—Voltage ................................... 2.1 - 2.5 volts

LX1024126 –UN–09JUN00

213 45 16

X258 7-pin plug for CAN BUS terminator (11-bit)

NOT OK: If the measured CAN-BUS voltage is less than it should be: GO TO 2. NOT OK: If the measured CAN-BUS voltage is more than it should be: Check the communication lines for a shorted circuit: • CAN+ (lead 944). • CAN- (lead 945).

IMPORTANT: For the 11-bit CAN BUS to operate properly, the voltage measured by multimeter JT05791A at CAN+ must be at least 0.1 volts more than the voltage at CAN-.

1.2 - Screening voltage:

OK: Test completed.

NOTE: The passive terminator (A18) is supplied with voltage via the screen lines.

NOT OK: Check the screen lines: • Positive (lead 942). • Ground (lead 940).

1. On the right-hand side of the main frame underneath the panel for the E-ICV, pull plug (X258; leading to passive terminating resistor A18) out of stepper motor harness W32. 2. Ignition ON. 3. Use multimeter JT05791A to check the voltage at plug X258: CAN BUS screen (at plug X258)—Specification between pin C (lead -940) and pin F (lead +942):—Voltage ........................................................................................... 12 volts

– – –1/1

TM4726 (01NOV03)

213-45-16

6020 to 6920S tractors 022204

PN=1458

Electronics 2 Checking the CAN-BUS carrier voltage

NOTE: The main supply of the 11-bit CAN BUS is via the active terminating resistor A17 (2.5 volt carrier voltage). Every stepper motor and the control unit for E-SCVs sends an additional transmitting voltage on the CAN BUS. If all the components are disconnected (SIC and stepper motors), the pure carrier voltage (approx. 2.5 volts) is sent on the CAN BUS.

OK: GO TO 3. NOT OK: GO TO 4.

2.1 - Preliminary test: Check the power supply to the active terminating resistor (A17): • Fuse F03/15. 2.2 - Check the carrier voltage:

1. Ignition OFF. 2. On the right-hand side of the main frame underneath the panel for the E-ICV, pull plug (X258; leading to passive terminating resistor A18) out of stepper motor harness W32. 3. Pull out the SIC plug X456 (cab harness W8) and disconnect the stepper motors from the CAN BUS (pull out the relays).

213 45 17

Summary of 11-bit CAN BUS components Component

Power supply

SIC

Controller for the E-SCVs / E-ICVs

Controller plug X456

M12, M13 and M14

E-ICV stepper motors 1, 2 and 3

Relay K02/5

A36 and A37

E-SCV stepper motors 1, 2

Relay K02/6

A38 and A39

E-SCV stepper motors 3, 4

Relay K02/7

LX1024126 –UN–09JUN00

X258 7-pin plug for CAN BUS terminator (11-bit)

4. Ignition ON. 5. Use multimeter JT05791A to check the voltage at plug X258: 11-bit CAN BUS carrier voltage—Specification CAN+, between pin B (lead 944) and pin C (lead 940):—Voltage ..................... 2.5 volts (+/- 0.1 volts) CAN-, between pin G (lead 945) and pin C (lead 940):—Voltage ..................... 2.5 volts (+/- 0.1 volts)

– – –1/1

TM4726 (01NOV03)

213-45-17

6020 to 6920S tractors 022204

PN=1459

Electronics 3 Isolate the defective circuit

NOTE: Reconnect each component (circuit) in turn to the 11-bit CAN BUS. Every time you reconnect a component, measure the CAN-BUS voltage again. 1. In turn, connect the SIC plug X456 and stepper motors to the CAN BUS (see allocation of relays in the chart). Summary of 11-bit CAN BUS components Component SIC

Controller for the E-SCVs / E-ICVs

Power supply Controller plug X456

M12, M13 and M14

E-ICV stepper motors 1, 2 and 3

Relay K02/5

A36 and A37

E-SCV stepper motors 1, 2

Relay K02/6

A38 and A39

E-SCV stepper motors 3, 4

Relay K02/7

OK: Check the connections at the plugs and control units for loose, widened, slid-back or corroded contacts. NOT OK: Repair the relevant circuit of the component as needed and repeat the test.

2. Ignition ON. 3. Every time you reconnect a component, use multimeter JT05791A to check the voltage at plug X258:

213 45 18

11-bit CAN BUS voltage—Specification CAN+, between pin B (lead 944) and pin C (lead 940):—Voltage ................................... 2.5 - 2.9 volts CAN-, between pin G (lead 945) and pin C (lead 940):—Voltage ................................... 2.1 - 2.5 volts

LX1024126 –UN–09JUN00

X258 7-pin plug for CAN BUS terminator (11-bit)

– – –1/1

TM4726 (01NOV03)

213-45-18

6020 to 6920S tractors 022204

PN=1460

Electronics 4 Check communication lines 944 and 945

4.1 - Check the communication lines for continuity and internal shorts:

OK: GO TO 4.2

1. Ignition OFF (this test must be carried out with the power off). 2. Pull out terminating resistor A18 (right-hand side of the main frame underneath the panel for the E-ICV, on stepper motor harness W32) and replace it with special tool DFLX12 (see Reference 299-05-015, DFLX12—Special Tool for 11-bit and 29-bit CAN BUS). 3. Pull plug X252 (yellow) out of the stepper motor for E-ICV 3 (on tractors without the E-ICV 3 function, the plug is protected by a plastic cap). 4. Check the communication lines for continuity and internal shorts (this test cannot be used to check the communication lines for grounds or shorts to external circuits!):

NOT OK: Check the circuit of the communication lines: • CAN+ (lead 944). • CAN- (lead 945).

Use multimeter JT05791A to check the resistance at plug X252 (stepper motor harness W32): 11-bit CAN BUS check (at stepper motor plug X252)—Specification between pin C (CAN+, lead 944) and pin D (CAN-, lead 945):— Resistor ............................................................. 120 ohms

LX1025894 –UN–13DEC01

X252 4-pin plug for stepper motor E-ICV 3

213 45 19

NOTE: Special tool—DFLX12 takes a resistance of 120 ohms (+/- 1%). With the CAN BUS main harness plugged in (main line/connections plugged into the various harnesses), this test can be carried out at every CAN BUS interface (i.e. at every control unit/stepper motor connection).

4.2 - Check the communication lines for a short to ground:

OK: No short to ground: GO TO 5.

Check leads 944 and 945 for shorts to ground. NOT OK: Repair as needed and repeat the test.

– – –1/1

5 Check the power supply to the active terminating resistor (A17)

1. Pull plug (X226; leading to the active terminating resistor A17) out of the rear wall of the cab (SIC harness W16). 2. Use multimeter JT05791A to check the power supply at plug X226: Power supply to the active terminating resistor (A17)—Specification between pin D (lead 562) and pin E (lead 050):— Voltage .................................................................. 12 volts

OK: Replace the terminating resistor (A17) and repeat the test. NOT OK: Check the power supply circuit (fuse F03/15): • Positive (lead 562). • Ground (lead 050) via collective ground point XGND6 to XGND43.

LX1024126 –UN–09JUN00

X226 7-pin plug for CAN BUS terminator (11-bit)

– – –1/1

TM4726 (01NOV03)

213-45-19

6020 to 6920S tractors 022204

PN=1461

Electronics

JDLink System Check Additional references: Operation: Reference 245-JDL-200, JDLink - Theory of Operation. Electrical information: Reference 210-15-001, General References - Summary. For circuit diagram, see: Reference 240-10-038, SE30 JDLink control unit For component location and pin arrangement, refer to: 213 45 20

Reference 240-26-411, W41 — Wiring Harness - JDLink.

NOTE: Take note of the processing procedures of diagnostic trouble codes before starting the diagnosis, see Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes.

LX26156,0000097 –19–04FEB04–1/1

Problem with JDLink Machine Messenger

– – –1/1

1 Fleet Call Check

Confirm with customer that other vehicles in his fleet with JDLink systems can be contacted.

YES: GO TO 2 NO: Possible causes

Can other vehicles in fleet be contacted?

NOTE: If customer only has 1 vehicle with JDLink system proceed to step 2

• vehicles out of cellular range • phone service outage • JD network down Call hotline at 0049 6332 793079 and ensure that the JD network is working properly. When problem corrected, attempt contact again

– – –1/1

TM4726 (01NOV03)

213-45-20

6020 to 6920S tractors 022204

PN=1462

Electronics 2 Contact Vehicle Check

Have customer start vehicle and drive it to an open area where it has clear view of sky horizon.

YES: Record the following information:

Let vehicle run for 5 minutes.

• Time/Date

Ask customer for location of vehicle.

• Location

Record the following 3 items of information from the customer:

• Diagnostic Trouble Codes (DTC)

• Name of customer’s business: • Tractor model • Serial number of tractor

GO TO 3 NO: GO TO 5

Call hotline at 0049 6332 793079 and initiate to contact the machine. Is notification received that contact has been successful?

NOTE: After the main (key) switch has been turned OFF, a vehicle can only be contacted during the following 24 hours. Once 24 hours have elapsed, the ignition must be turned ON again to enable contact to be made.

213 45 21 – – –1/1

3 Time and Date Check

Was Time/Date recorded in step 2 correct?

YES: GO TO 4 NO: GO TO 16

– – –1/1

4 Location Check

Did location of vehicle recorded in step 2 match actual location of vehicle?

YES: GO TO 22 NO: Further diagnostics need to be done at vehicle GO TO 17

– – –1/1

5 Cellular Service Area Check

Can any cell phone call be made at this location?

YES: Further diagnostics need to be done at vehicle GO TO 6 NO: Drive vehicle to an area where a cell phone call can be made. GO TO 2

– – –1/1

TM4726 (01NOV03)

213-45-21

6020 to 6920S tractors 022204

PN=1463

Electronics 6 JDL Control Unit CAN Bus Check

- Performance monitor:

YES: GO TO 7

Access diagnostic trouble code and select JDL Control Unit using the “2” key (arrow up).

NO: GO TO 26

- Service ADVISOR: Look for JDL Control Unit on “Template” screen. Does JDL Control Unit address appear in the list of devices on the Bus?

– – –1/1

213 45 22

7 Cellular Service Check

Drive tractor to an open area with a clear view to the sky.

YES: GO TO 8

- Performance monitor:

NO: GO TO 9

Put vehicle in diagnostic mode View any previously listed Diagnostic Trouble Codes recorded by vehicle and write them down. Clear Diagnostic Trouble Codes. Access the following diagnostic address: • JDL (JDLink Machine Messenger) • Address 13 (Modem Activity 2 Status) Does display show... XX1 or Cellular Service

– – –1/1

TM4726 (01NOV03)

213-45-22

6020 to 6920S tractors 022204

PN=1464

Electronics 8 Checking contact from tractor

Drive tractor to an open area with a clear view to the sky. - Performance monitor:

YES: Call hotline at 0049 6332 793079 and check status on the JDLink Website.

Put vehicle in diagnostic mode Access the following diagnostic address: • JDL (JDLink Machine Messenger) • Address 11 (forced contact)

As no connection could be obtained to the JDLink Website previously, the following should be clarified with the customer:

The display should show ... • Had the tractor been turned on within the last 24 hours?

000 (default) Calibrate the default value to 001 by using the following steps:

• Where was the tractor? See References: Reference 245-05-002, Accessing the Addresses and Diagnostic Trouble Codes. • Use the flash to pass switch 3 times to arrive at right digit of three digit code • Use right turn signal lever to change this digit from a 0 to 1 • Use the flash to pass switch once to retain right digit value of 1, value is now 001

• Was the tractor operating at the time in question? NO: GO TO 9

Press hazard switch to initiate contact and immediately Access the following diagnostic address: • JDL (JDLink Machine Messenger) • Address 12 (Modem Activity 1 Status) Status should proceed from 003 dialing a number, to 004 normal connection mode, to 001 normal stand-by mode. Did status 004 (connection mode) occur?

– – –1/1

9 Cellular Service Status Check

Access the following diagnostic address: • JDL (JDLink Machine Messenger) • Address 12 (Modem Activity 1 Status)

YES: If value is 000, replace JDLink Control Unit GO TO 2

Does display show... Any of these values 000, 006, 007 or 008

YES: If value is 006, 007 or 008, call the hotline at 0049 6332 793079. NO: Values 001, 003, 004, 005 are normal cell phone statuses. GO TO 10

– – –1/1

TM4726 (01NOV03)

213-45-23

6020 to 6920S tractors 022204

PN=1465

213 45 23

Electronics 10 Co-ax Connection Check

Remove cab roof and check co-ax connection between cellular antenna and JDLink Control Unit.

YES: GO TO 11 NO: Tighten connections

NOTE: The cellular antenna is a cylinder and the GPS antenna is a flattened sphere. GO TO 7 Check to see if the cellular antenna co-ax cable connections are loose Are connections O.K.?

– – –1/1

213 45 24

11 Co-ax Continuity Check

Remove cab roof and disconnect the co-ax cable at the JDLink Control Unit (cellular antenna).

YES: GO TO 12 NO: GO TO 15

Measure the resistance between the painted top (not the sides) of the antenna and the center pin of the JDLink Control Unit connector (co-ax cable).

NOTE: Penetrate paint of cellular antenna to ensure contact is made. Is the resistance less than 3 ohm?

– – –1/1

12 Co-ax Continuity Check (Shield)

Remove cab roof.

YES: GO TO 13

Disconnect the co-ax cable at the JDLink Control Unit (cellular antenna).

NO: Replace co-ax cable

Measure the resistance between the base of the cellular antenna and the shield of the co-ax cable at the JDLink Control Unit connector.

GO TO 7

Is the resistance less than 3 ohm?

– – –1/1

13 Shorted Cellular Antenna or Co-ax Cable Check

Remove cab roof and disconnect the co-ax cable at the JDLink Control Unit (cellular antenna). Measure the resistance between the center lead of the plug (co-ax cable) and shield of the co-ax cable.

YES: Call hotline at 0049 6332 793079 and advise that checks that have been made to this point. Enter a DTAC case.

Is resistance greater than 100 kOhm?

NO: GO TO 14

– – –1/1

TM4726 (01NOV03)

213-45-24

6020 to 6920S tractors 022204

PN=1466

Electronics 14 Shorted Cellular Co-ax Cable Check

Remove cab roof and disconnect the co-ax cable at the JDLink Control Unit and at the cellular antenna.

YES: Replace the cellular antenna

Measure the resistance of the co-ax cable between the center conductor and the shield.

GO TO 7 NO: Replace co-ax cable

Is resistance greater than 100 kOhm? GO TO 7

– – –1/1

15 Co-ax Continuity Check

Remove cab roof and disconnect the co-ax cable at the JDLink Control Unit and at the cellular antenna. Measure the resistance of the co-ax cable at the center conductor between the JDLink Control Unit connector and the cellular antenna connector. Is the resistance less than 3 ohm?

YES: Verify that the center pin, that the 213 cellular antenna threads 45 onto is 2 mm (0.08 in.) 25 above the mount base and is clean and free of debris. If the connection looks clean, replace the cellular antenna; otherwise repair the co-ax connection. GO TO 7 NO: Replace co-ax cable GO TO 7

– – –1/1

16 Correct Time Settings Check

Check the time and time zone setting.

YES: GO TO 17

Are settings correct?

NO: Put proper settings to correct time problem GO TO 2 – – –1/1

17 Serial Number Check

- Performance monitor:

YES: GO TO 18

Put vehicle in diagnostic mode

NO: Change the JDLink Website so settings match the vehicle

Access the following diagnostic address: • JDL (JDLink Machine Messenger) • 82 (first three characters of JDL Serial Number) • 83 (last three characters of JDL Serial Number)

GO TO 2

Check tractor association with JDLink Control Unit Do these values match the JDLink Website values for this machine? – – –1/1

TM4726 (01NOV03)

213-45-25

6020 to 6920S tractors 022204

PN=1467

Electronics 18 GPS Problem Check

Drive tractor to an open area with a clear view to the sky.

YES: GO TO 20

- Performance monitor:

NO: GO TO 19

Put vehicle in diagnostic mode Record all JDL Control Unit Diagnostic Trouble Codes. Clear Diagnostic Trouble Codes from system. Turn key switch to OFF position. Wait for 15 seconds. Turn key switch to the ON position Access the following diagnostic address: • JDL (JDLink Machine Messenger) • 21 Address (GPS 1 Status)

213 45 26

Does display show... 008 no usable satellites

– – –1/1

19 GPS Status Check

Access the following diagnostic address:

YES: GO TO 2

• JDL (JDLink Machine Messenger) • 21 Address (GPS 1 Status)

Verify that location is now correct.

Possible GPS values:

NO: If after 10 minutes value is 003, 008, 012 or 015 , call the hotline at 0049 6332 793079.

• • • • • • • • • •

000 001 003 008 009 010 011 012 015 255

doing position fixes don’t have GPS time yet PDOP is too high no usable satellites only 1 usable satellite only 2 usable satellite only 3 usable satellite the chosen satellite is unusable GPS receiver module powered off GPS receiver module not detected

If after 10 minutes value is 255: Replace JDLink Control Unit GO TO 2

If values 001, 009, 010 or 011 appear, wait for 10 minutes. Does display show... 000 doing position fixes – – –1/1

TM4726 (01NOV03)

213-45-26

6020 to 6920S tractors 022204

PN=1468

Electronics 20 Voltage Check to GPS Antenna

YES: Replace GPS Antenna

Turn key switch to OFF position. Remove cab roof. Disconnect the co-ax cable at the GPS antenna.

Turn key switch to OFF position.

NOTE: The GPS antenna is a flattened sphere and the cellular antenna is a cylinder.

Wait for 15 seconds.

Turn key switch to the ON position

Turn key switch to the ON position

Measure voltage at GPS harness end, connector GPS antenna center pin to shield. GO TO 19 Was there 5 V DC ± 0.3 volts? NO: GO TO 21 – – –1/1

21 GPS Voltage Check

Turn key switch to OFF position.

YES: Replace GPS co-ax cable

Remove cab roof and disconnect GPS co-ax at JDLink Control Unit. GO TO 19 Turn key switch to the ON position Measure voltage at JDLink Control Unit center pin to shield

NO: Replace JDLink Control Unit

Was there 5 V DC ± 0.3 volts?

GO TO 19

– – –1/1

22 Vehicle Error Check

Figure out what the customer’s complaint is with JDLink system.

YES: GO TO 23

In conversation with customer, is he reporting that JDLink Website alert log is missing vehicle Level 1 (Red) or Level 2 (Yellow) alerts?

NO: Customer may have other problems that have not been addressed yet. The customer may, for example, have problems navigating around in JDLink Website for which he needs to call the hotline at 0049 6332 793079 for assistance.

– – –1/1

23 Diagnostic Trouble Code Check

Were Diagnostic Trouble Codes any “Machine Data Configuration Fault” (298872.31298876.31) recorded in step 2?

YES: If the customer suspects that some data is missing from the JDLink utilization log report, call the hotline at 0049 6332 793079. GO TO 2 NO: GO TO 24

– – –1/1

TM4726 (01NOV03)

213-45-27

6020 to 6920S tractors 022204

PN=1469

213 45 27

Electronics 24 JDLink Control Unit, CAN Diagnostic Trouble Code Check

Were the following Diagnostic Trouble Codes recorded in step 2? • 298885.31 Control Unit Memory Capacity Exceeded • 298883.31 CAN Bus Fault • 001542.04 Control Unit Voltage Low • 000629.12 Control Unit Fault

YES: GO TO 25 NO: GO TO 31

– – –1/1

25 Diagnostic Trouble Code Check with Vehicle in Diagnostic Mode

Dealer technician needs to go to machine. - Performance monitor:

YES: If Diagnostic Trouble Code 000629.12 reappeared, replace JDLink Control Unit

Put vehicle in diagnostic mode GO TO 2 Record all JDL Control Unit Diagnostic Trouble Codes. Clear Diagnostic Trouble Codes from system. Turn key switch to OFF position.

213 45 28

Wait for 15 seconds. Turn key switch to the ON position View Diagnostic Trouble Codes generated by JDLink Control Unit.

YES: If Diagnostic Trouble Code 298885.31 appeared, call the hotline at 0049 6332 3079. If Diagnostic Trouble Code 298883.31 reappeared, see Reference 245-20-001, Data BUS Systems — Summary of References.

Were any Diagnostic Trouble Codes generated? GO TO 2 YES: If Diagnostic Trouble Code 001542.04 reappeared: GO TO 26 NO: Customer may have other problems that have not been addressed yet. The customer may, for example, have problems navigating around in JDLink Website for which he needs to call the hotline at 0049 6332 793079 for assistance. DONE – – –1/1

TM4726 (01NOV03)

213-45-28

6020 to 6920S tractors 022204

PN=1470

Electronics 26 Single Point Ground Check

Check ground connection, pin A2, wire 310, harness W41.

YES: GO TO 27

For location of the frame ground connection (XGND10, cab roof harness W19) see: Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

NO: Repair frame ground connection XGND10

Is the JDLink Control Unit grounded via the frame ground connection? 213 45 29 – – –1/1

27 Voltage Check at Fuses

Turn key switch to the ON position

YES: GO TO 28

Check voltage at fuses F04/12 and F03/14.

NO: Go to tractor battery and alternator diagnostics: Reference 240-10-003, SE1 Starting and Charging Circuit

Is voltage at both ends of fuses greater than 12-volt DC?

– – –1/1

28 JDLink Control Unit Unswitched Voltage Check

Turn key switch to OFF position.

YES: GO TO 29

Remove cab roof.

NO: GO TO 30

Disconnect JDLink Control Unit connector X529. Turn key switch to the ON position Measure voltage of JDLink Control Unit (harness end) between lead 952, pin A1 (unswitched power) and lead 310, pin A2 (ground). Is it 12-volt DC?

– – –1/1

TM4726 (01NOV03)

213-45-29

6020 to 6920S tractors 022204

PN=1471

Electronics 29

JDLink Control Unit Switched Voltage Check

Turn key switch to OFF position.

YES: GO TO 33

Remove cab roof. Disconnect JDLink Control Unit connector X529.

NO: Refer to schematic and repair: Reference 240-10-038, SE30 JDLink control unit

Turn key switch to the ON position Measure voltage of JDLink Control Unit (harness end) between lead 971, pin A3 (switched power) and lead 310, pin A2 (ground).

GO TO 2

Is it 12-volt DC?

– – –1/1

213 45 30

30 Single Point Ground Check

Check ground connection (XGND10, cab roof harness W19), lead 310. For location of the frame ground connection see: Reference 240-26-004, Wiring Harnesses for 6120, 6220, 6320, 6420 and 6520 Tractors with PowrQuad Plus Transmission and Stage I Engine to 97/68/EC — Summary of References Reference 240-26-005, Wiring Harnesses for 6320, 6420 and 6520 Tractors with AutoQuad Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-002, Wiring Harnesses for 6420S, 6620, 6820, 6920 and 6920S Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-003, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage I Engine to 97/68/EC — Summary of References. Reference 240-26-501, Wiring Harnesses for Tractors with PowrQuad Plus or AutoQuad Transmissions and Stage II Engine to 97/68/EC — Summary of References. Reference 240-26-502, Wiring Harnesses for Tractors with AutoPowr/IVT Transmission and Stage II Engine to 97/68/EC — Summary of References

YES: GO TO 31 NO: Repair frame ground connection XGND10

Is the JDLink Control Unit grounded via the frame ground connection?

– – –1/1

31 Cause Vehicle Error Check

Cause a vehicle error to check JDLink system.

YES: DONE

To test the system, switch on rear PTO and adjust to 1000 or 540E rpm. After having done this, increase speed to more than 620 rpm. A Level 2 (yellow) alert is initiated. This alert must appear on the JDLink website.

Explain to the customer that everything is working, and reason for his complaint was JD network-related or partial data transfer

Initiate contact to tractor through the hotline 0049 6332 793079. Did the JDLink Website alert log record the Level 2 (Yellow) alert?

NO: GO TO 32

– – –1/1

TM4726 (01NOV03)

213-45-30

6020 to 6920S tractors 022204

PN=1472

Electronics 32 Diagnostic Trouble Code Check

- Performance monitor:

YES: GO TO 33

Put vehicle in diagnostic mode

NO: Try a different alert to test JDLink tractor interface problem.

Was alert “Rear PTO Speed too High, Reduce Engine Speed” (Diagnostic Trouble Code 000186.16) initiated?

GO TO 31

– – –1/1

33 CAN+ Voltage Check

Turn key switch to OFF position.

YES: GO TO 34

Remove cab roof.

NO: Refer to schematic and repair: 29-BIT CAN BUS Test, Section 213, Group 40.

Disconnect JDLink Control Unit connector X529. Turn key switch to the ON position

GO TO 2 Measure voltage of JDLink Control Unit (harness end) between lead 934, pin C2 (CAN+) and lead 310, pin A2 (ground). Is it 2.5-volt DC + 0.3 volts?

– – –1/1

34 CAN- Voltage Check

Turn key switch to OFF position.

YES: Replace JDLink Control Unit

Remove cab roof. GO TO 2 Disconnect JDLink Control Unit connector X529. Turn key switch to the ON position Measure voltage of JDLink Control Unit (harness end) between lead 935, pin D2 (CAN-) and lead 310, pin A2 (ground).

NO: Refer to schematic and repair: 29-BIT CAN BUS Test, Section 213, Group 40. GO TO 2

Is it 2.5-volt DC + 0.3 volts?

– – –1/1

TM4726 (01NOV03)

213-45-31

6020 to 6920S tractors 022204

PN=1473

213 45 31

Electronics

213 45 32

TM4726 (01NOV03)

213-45-32

6020 to 6920S tractors 022204

PN=1474