Renault DP0 AL4 Fault Finding MR341LAGUNA2

Transmission AUTOMATIC TRANSMISSION

BG0A - BG0B - BG0D - BG0G - KG0A - KG0B - KG0D - KG04 77 11 297 562

NOVEMBER 2000

"The repair methods given by the manufacturer in this document are based on the technical specifications current when it was prepared.

EDITION ANGLAISE

All copyrights reserved by Renault.

The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which his vehicles are constructed."

Copying or translating, in part or in full, of this document or use of the service part reference numbering system is forbidden without the prior written authority of Renault.

© RENAULT 2000

SIEMENS AUTOMATIC TRANSMISSION

FAULT FINDING

CONTENTS

Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Interpretation of faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Conformity check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Status interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Parameter interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Customer complaints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Fault finding charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION 123 Fault finding - Introduction

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To carry out the diagnostic on this system, it is essential to have the following items available: – The wiring diagram of the function for the vehicle concerned, – The tools listed under the heading "Special tooling required".

GENERAL APPROACH TO FAULT FINDING: – Use of one of the diagnostic tools to identify the system installed in the vehicle (reader for the "SIEMENS TA2000" family of computers). – Finding the "Fault finding" documents corresponding to the system identified. – Taking into account information contained in the Introduction section. – Reading the faults stored in the computer memory and using the "Fault interpretation" section of the documents. Reminder: Each fault is interpreted for a particular type of storage (fault present, fault stored, fault present or stored). The checks defined for dealing with each fault are therefore only to be performed if the fault identified by the diagnostic tool is interpreted in the document for its type of storage. The storage type should be considered when using a diagnostic tool following ignition switch-off and switch-on. If a fault is interpreted when it is stated to be "stored", the conditions for application of the diagnostic routine appear in the "NOTES" box. When the conditions are not satisfied, use the diagnostic routine to check the circuit of the faulty part since the fault is no longer present on the vehicle. Perform the same operation when a fault is stated as "stored" by the diagnostic tool but is only interpreted in the documentation for a "present" fault. – Carrying out the conformity check (appearance of possible incorrect operations not yet stated by the system's self diagnosis procedure) and implementing the associated diagnostic routines according to results. – Validation of the repair (disappearance of the phenomenon reported by the customer). – Use of the diagnostic routine for each "Customer complaint " if the problem persists.

Special tooling required for working on the "SIEMENS TA2000" system: – Diagnostic tools (except XR 25). – Multimeter. – Bornier no. 1588 for carrying out checks.

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AUTOMATIC TRANSMISSION Fault finding - Introduction

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NOTE: – Switch off ignition before using the diagnostic tool. – The lever must be in position P or N.

IMPORTANT: The computer of the DP0 automatic transmission uses self-adapting parameters for gear change management and the lock-up function. These self-adapting parameters enable the pressure and fill times for the brakes and clutches to be optimised as a function of the specific mechanical/hydraulic characteristics of each automatic transmission. Therefore, replacing any component that influences these parameters requires the stored values to be updated. The self-adapting parameters are reset using command RZ005 (self-adapting parameters). After using command RZ005, it is important to carry out a test drive performing all gear changes, both up and down, several times in order to store the new values. Reset the self-adapting parameters after replacing the following components: – Hydraulic distributor. – Torque converter. – Pressure modulating solenoid valve. – The entire automatic transmission.

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AUTOMATIC TRANSMISSION Fault finding - Introduction

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If information obtained by the diagnostic tool requires the electrical continuity to be checked, connect bornier no. 1588. Bornier no. 1588 comprises a 56 track base attached to a printed circuit on which are arranged 56 copper-plated areas numbered 1 to 56. Using the wiring diagrams, it is easy to identify the cables connecting the component(s) to be checked.

IMPORTANT: *

All checks carried out with bornier no. 1588, must only be done with the battery disconnected.

*

The bornier is only designed to be used with an ohmmeter. Under no circumstances should 12 Volts be applied to the test points.

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Preliminary work before fault finding

Before a diagnostic routine is carried out on the automatic transmission, the vehicle must not be showing any faults when in "injection" mode.

– Carry out a diagnostic on the injection system. – Deal with any possible faults. – Clear the memories of the injection system computer. – Carry out a road test. – Repeat the test with the diagnostic tool – If no fault appears on the injection system, continue with the "automatic transmission" diagnostic.

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DF002 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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COMPUTER

None

Check the fuse for the power supply to the automatic transmission computer. Replace if necessary. Check the fuse for the + after ignition feed of the automatic transmission computer. Replace if necessary. Check the battery voltage Recharge or replace if necessary.

11.8 V < V bat < 13.2 V.

Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 56 Fuse box, engine and relay Computer track 27 Fuse box, engine and relay Computer track 28 Vehicle earth Repair if necessary.

If the fault is stored, clear the computer's fault memory and the self-adapting parameters. Switch off the ignition then switch it back on to reinitialise the computer. Change the computer if the fault recurs. If the fault is present, replace the computer (see "Help" chapter).

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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POWER SUPPLY TO THE ANALOGUE SENSORS DF003 PRESENT

NOTES

None

This fault is taken into account when the 5 volt power supply to the oil pressure and temperature sensors drops below 4.5 volts (sensor short circuit or short circuit to earth of the 5 volt supply) or when the pressure sensor signal short circuits to 12 volts. Check the connection and condition of the oil pressure sensor connector. Change the connector if necessary. Check that the resistance of the oil pressure sensor is not zero or infinity (definite sensor fault). If necessary replace the oil temperature sensor. Connect the bornier in place of the computer and check the insulation, continuity and interferenceresistance of the connections between: Computer track 24 Computer track 25

Oil pressure sensor track C1 Oil pressure sensor track C3

Repair if necessary. Check the connection and the condition of the oil temperature sensor connector. Change the connector if necessary. Check that the oil temperature sensor resistance is not zero or infinity (definite sensor fault). Change the oil pressure sensor if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interferenceresistance of the connections between: Computer track 53 Computer track 54

Oil temperature sensor track B4 Oil temperature sensor track B1

Repair if necessary. Replace the computer if the fault persists.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off the ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF005 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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OIL PRESSURE SENSOR CIRCUIT

None

Check the connection and condition of the oil pressure sensor connector. Change the connector if necessary. Check that the oil pressure sensor resistance is not zero or infinity (definite sensor fault). If necessary change the oil temperature sensor. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 24 Computer track 55 Computer track 25

Oil pressure sensor track C1 Oil pressure sensor track C2 Oil pressure sensor track C3

Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF008 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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MULTIFUNCTION SWITCH IN INTERMEDIATE POSITION

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present when moving the selector lever from position P to position D (Stopping on all the lever positions).

Check the installation of the multifunction switch on the automatic transmission. Check the control adjustment (refer to the checking method). Check the connection and condition of the connections at the computer and the multifunction switch. If necessary change the connections. Carry out the following checks on the multifunction switch. Continuity Lever in "P" position, track A10 Lever in position "R", track A10, A11, A12 Lever in position "N", track A11 Lever in position "D", track A12

Track A7 Track A7 Track A7 Track A7

Insulation Lever in position "P", track A9, A11, A12 Lever in position "R", track A9 Lever in position "N", track A9, A10, A12 Lever in position "D", track A9, A10, A11

Track A7 Track A7 Track A7 Track A7

Disconnect the multifunction switch. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 31 Computer track 32 Computer track 33 Computer track 42

Multifunction switch track A10 Multifunction switch track A11 Multifunction switch track A12 Multifunction switch track A 7

Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF009 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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MULTIFUNCTION SWITCH IN PROHIBITED POSITION

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present when moving the selector lever from position P to position D (Stopping on all the lever positions).

Check the installation of the multifunction switch on the automatic transmission. Check the control adjustment (refer to the checking method). Check the connection and condition of the connections at the computer and the multifunction switch. If necessary change the connections. Carry out the following checks on the multifunction switch. Continuity Lever in position "P", track A10 Lever in position "R", track A10, A11, A12 Lever in position "N", track A11 Lever in position "D", track A12

Track A7 Track A7 Track A7 Track A7

Insulation Lever in position "P", track A9, A11, A12 Lever in position "R", track A9 Lever in position "N", track A9, A10, A12 Lever in position "D", track A9, A10, A11

Track A7 Track A7 Track A7 Track A7

Disconnect the multifunction switch. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 31 Computer track 32 Computer track 33 Computer track 42

Multifunction switch track A10 Multifunction switch track A11 Multifunction switch track A12 Multifunction switch track A 7

Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF010 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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INSTRUMENT PANEL CONNECTION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

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DF011 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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ELECTROMAGNET CIRCUIT FOR LEVER LOCK CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the solenoid valve connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 11 + after ignition feed

Lever lock solenoid valve track B2 Lever lock solenoid valve track B1

Repair if necessary. Disconnect the 6 track connector in the centre console and measure the resistance of the winding of the lever lock electromagnet between tracks B1 and B2. Replace the solenoid valve if the resistance is not approximately 40 ± 4 ohms. Ensure that+ after ignition feed is present on track B1 of the electromagnet connector. Check the connections at the automatic transmission computer and the 6 way connector. Carry out the required operations. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SOLENOID VALVE POWER SUPPLY

DF012 PRESENT OR STORED

CO = Open circuit CC.1 = Short circuit to + 12 volts

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the solenoid valve connectors Replace if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 1

Electric/hydraulic interface track B3

Repair if necessary. If the fault persists, deal with fault DF017 "Circuit for exchanger flow rate solenoid valve" then return to dealing with fault DF012. If all the checks are correct, switch on ignition then clear the computer's fault memory. Exit fault finding mode and switch off ignition. If the fault reappears when the ignition is switched on, replace the internal wiring of the automatic transmission. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF016 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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CONVERTER LOCK UP SOLENOID VALVE CIRCUIT CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the solenoid valve connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 19 Computer track 26

Lock up solenoid valve track B6 Lock up solenoid valve track B12

Repair if necessary. Check the resistance of the winding of the lock up solenoid valve between tracks 19 and 26 of the computer. If the resistance measured is not 1 ohm +/- 0.12 ohms at 20°C, carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question.

If all the checks are correct, reconnect the computer connector and the solenoid valve connector, switch on the ignition, then clear the computer's fault memory. Exit fault finding mode and switch off ignition. If the fault reappears under the conditions defined in "Notes", replace the lock up solenoid valve. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF017 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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CIRCUIT FOR EXCHANGER FLOW RATE SOLENOID VALVE CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the solenoid valve connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 2 Computer track 12

Exchanger flow rate solenoid valve track E1 Exchanger flow rate solenoid valve track E2

Repair if necessary. Check the resistance of the winding of the exchanger flow rate solenoid valve between tracks 2 and 12 of the computer. If the resistance measured is not 40 ohms +/- 4 ohms at 20°C, carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question.

If all the checks are correct, reconnect the computer connector and the automatic transmission connector, switch on the ignition, then clear the computer's fault memory. Exit fault finding mode and switch off ignition. If the fault reappears under the conditions defined in "Notes", replace the exchanger flow rate solenoid valve. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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CONVERTER LOCK UP SLIP DF018 STORED

NOTES

If faults DF018 and DF005 are displayed at the same time, replace the pressure modulating solenoid valve, the converter lock up solenoid valve and the oil.

Clear the computer memory then carry out a road test.This road test must be carried out in a manner that enables torque converter lock up tests to be performed (driving in 3rd with stabilisation of speed for more than 3 consecutive minutes). If the fault reappears in the road test, carry out the following checks: Refer to the procedure and the safety instructions for carrying out a setting point check on the torque converter. If the setting point value is not 2300 ± 150 rev/min or if there is internal noise in the converter, replace the torque converter, the lock up solenoid valve (EVLU) and the oil. If the oil is burnt, also replace the hydraulic distributor and all the solenoid valves as well as the exchanger. If replacing the torque converter, ensure that the reaction shaft is securely attached to the hub of the oil pump (flanged shaft). NOTE: A setting point which is too low may be linked to a lack of engine power. If the setting point is OK, replace the lock up solenoid valve (EVLU) and the oil.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Refer to the "Help" chapter to reset the oil age counter (enter the date of the oil change). Switch off the ignition, switch the ignition back on and carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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OLD OIL DF020 STORED

NOTES

None

The automatic transmission's computer calculates how the oil is aging by using the operating parameters of the automatic transmission (oil temperature, vehicle speed...). When fault DF020 is indicated, replace the automatic transmission oil. After carrying out an oil change, reset the oil age counter in the computer's memory and enter the date of the oil change. These two actions are carried out using command CF074 (Write date of gearbox oil change). Then reset the self-adapting parameters using command mode RZ005 (self-adapting parameters).

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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FULL LOAD/NO LOAD PROGRAMMING NOT CARRIED OUT DF022 PRESENT

NOTES

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

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CIRCUIT FOR GEARBOX OIL TEMPERATURE SENSOR DF023 PRESENT

NOTES

None

Check the connection and condition of the solenoid valve connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 53 Computer track 54

Oil temperature sensor track B4 Oil temperature sensor track B1

Repair if necessary. Measure the resistance of the oil temperature sensor between tracks 53 and 54 of the computer. The resistance must be between:

2360 and 2660 ohms at 20° 290 and 327 ohms at 80°

If necessary replace the sensor.

If all the checks are correct, reconnect the computer connector and the automatic transmission connector, switch on the ignition, then clear the computer's fault memory. Exit fault finding mode and switch off ignition. If the fault reappears when the ignition is switched on, replace the oil temperature sensor. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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COOLANT TEMPERATURE SENSOR CIRCUIT DF024 PRESENT

NOTES

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

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MULTIFUNCTION SWITCH IN UNSTABLE POSITION DF029 STORED

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present when moving the selector lever from position P to position D (Stopping on all the lever positions).

Check the connection and the condition of the connector of the multifunction switch. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 31 Computer track 32 Computer track 33 Computer track 42

Multifunction switch track A10 Multifunction switch track A11 Multifunction switch track A12 Multifunction switch track A 7

Repair if necessary.

If all the checks are correct, reconnect the computer connector and the automatic transmission connector, switch on the ignition, then clear the computer's fault memory. Exit fault finding mode and switch off ignition. Carry out a road test using all the selector lever positions. If the fault reappears, replace the multifunction switch. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF030 PRESENT OR STORED

NOTES

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AIR CONDITIONING SHUT-OFF CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

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DF036 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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PRESSURE MODULATING SOLENOID VALVE CIRCUIT CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 26 Pressure modulating solenoid valve track B12 Computer track 20 Pressure modulating solenoid valve track B 9 Repair if necessary. Measure the resistance of the winding of the pressure modulating solenoid valve between tracks 26 and 20 of the computer. If the resistance measured is not 1 ohm +/- 0.12 ohms at 23°C, disconnect the connector and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question.

If all the checks are correct, reconnect the connectors, switch on ignition and clear the fault memory. Exit fault finding mode and switch off ignition. If the fault reappears under the conditions defined in "Notes", replace the pressure modulating solenoid valve.

If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

If replacing the pressure modulating solenoid valve, the self-adapting parameters must be cleared (command RZ005). Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF037 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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DOWNSHIFT CONTACT SWITCH CIRCUIT DEF = Unidentified electrical fault

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

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DF038 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

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TURBINE SPEED SENSOR CIRCUIT 1DEF = No signal 2DEF = Interference signal

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present when the engine is running and the gear selector lever is in P.

Check the connection and condition of the turbine speed sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 45 Computer track 46

Turbine speed sensor track D1 Turbine speed sensor track D2

Repair if necessary. Measure the resistance of the turbine speed sensor between tracks 45 and 46 of the computer. If the resistance measured is not 300 ± 40 ohms at 20°C, replace the sensor.

If all the checks are correct, reconnect the connectors, switch on ignition and clear the fault memory. Exit fault finding mode and switch off ignition. If the fault reappears under the conditions defined in "Notes", check the installation of the turbine speed sensor (position and secure fixture). Check the condition of the wiring and that it is routed correctly (risk of signal interference). Also check that the high voltage circuits are OK and correct.

If the fault persists, replace the turbine speed sensor. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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DF048 PRESENT OR STORED

2DEF 1DEF

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

VEHICLE SPEED INFORMATION 1DEF = 2DEF = 3DEF = 4DEF =

Unidentified electrical fault Unidentified electrical fault Multiplex system Multiplex system

NOTES

Conditions for the application of the diagnostic on the fault stored: The fault is stated as present after a road test.

Check the connection and condition of the vehicle speed sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 47 Computer track 48

Vehicle speed sensor track B Vehicle speed sensor track A

Repair if necessary. Measure the resistance of the gearbox output speed sensor between tracks 47 and 48. If the resistance measured is not 1200 ohms + 200, replace the sensor.

If all the checks are correct, reconnect the computer connector and the sensor, switch on the ignition, then clear the computer's fault memory. Exit fault finding mode and switch off ignition. If the fault reappears under the conditions defined in "Notes", check the installation of the vehicle speed sensor (position and secure fixture). Check the condition of the wiring and that it is routed correctly (risk of signal interference). Also check that the high voltage circuits are OK and correct.

If the fault persists, replace the vehicle speed sensor.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-25

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

DF048 (CONTINUED)

4 DEF 3 DEF

NOTES

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-26

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

GEARBOX OIL PRESSURE REGULATION DF049 STORED

NOTES

1DEF = 2DEF =

If fault DF005 is displayed deal with this first. If faults DF049 and DF018 are displayed, replace the pressure modulating solenoid valve, the converter lock up solenoid valve (EVLU) and the oil.

Put the selector lever into position P/N, with the engine stopped, in order to show up any possible fault in the pressure modulating solenoid valve (EVM). With the engine stopped, check the line pressure information supplied by the pressure sensor (see the parameters). Replace the pressure sensor if the value is greater than 0.2 bar. Check the oil level. Fit a pressure gauge to the pressure check point on the automatic transmission housing (if a level check has already been carried out, ensure in the parameter function that the oil temperature is greater than 20°C before continuing). Note the line pressure indicated by the pressure gauge and by the diagnostic tool in the following conditions: – Brakes applied, lever in D position and engine speed = 1200 rev/min. Replace the pressure sensor if the measurements from the pressure gauge and the diagnostic tool differ by more than 0.5 bar. Repeat the check after replacement.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

DF049 (CONTINUED)

Automatic transmission oil between 60 et 90°, brakes applied and lever in D position, place a pedal press or a stop on the accelerator pedal to get a stable recorded pressure of approximately 8 bar (see parameters) at an engine speed of approximately 1300 rev/min. Note the values obtained in these conditions, making sure that the engine speed remains stable between the two readings. These measurements must be carried out as quickly as possible so that these conditions do not have to be maintained for too long. Replace the pressure modulating solenoid valve and the oil if the difference between the two values is more than 0.2 bar. Repeat the check after replacement. If the fault persists, replace the hydraulic distributor and all the solenoid valves. On completion of the work, clear the computer's fault memory and the self-adapting parameters by using the command. Refer to the "Help" chapter to reset the oil age counter (enter the date of the oil change). Switch off the ignition, switch the ignition back on then carry out a road test. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-28

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF054 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

P/N CONTACT INFO OF THE MULTIFUNCTION SWITCH

None

Check the connection and condition of the multifunction connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 28 Computer track 28

Multifunction switch Vehicle earth (see wiring diagram)

Repair if necessary. If all the checks are correct, switch on ignition then clear the computer's fault memory. Exit fault finding mode and switch off ignition. Move the selector lever contact to position P or N. If the fault reappears, replace the multifunction switch. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-29

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF055 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

INJECTION SYSTEM/AUTOMATIC TRANSMISSION CONNECTION 1DEF = No signal 2DEF = Interference signal

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF064 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

DISPLAY CIRCUIT CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-31

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF084 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX NETWORK

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-32

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF085 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CIRCUIT FOR "EVS1" SEQUENTIAL SOLENOID VALVES CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts CC = Short circuit

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 10

Electric/hydraulic interface track B11

Repair if necessary. Measure the resistance of the winding of the sequence 1 solenoid valvebetween tracks 1 and 10 of the computer. If the resistance measured is not 40 ohms +/- 2 ohms at 23°C, remove the cover and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question. If all the checks are correct, reconnect the computer connector and the electric/hydraulic interface connector. Switch on the ignition then clear the computer's fault memory, exit from diagnostics mode and switch off the ignition. If the fault reappears when the ignition is switched on, replace the computer. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CIRCUIT FOR "EVS2" SEQUENTIAL SOLENOID VALVES

DF086 PRESENT OR STORED

CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts CC = Short circuit

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 9

Electric/hydraulic interface track B8

Repair if necessary. Measure the resistance of the winding of the sequence 1 solenoid valvebetween tracks 1 and 8 of the computer. If the resistance measured is not 40 ohms +/- 2 ohms at 20°C, remove the cover and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question. If all the checks are correct, reconnect the computer connector and the electric/hydraulic interface connector. Switch on the ignition then clear the computer's fault memory, exit from diagnostics mode and switch off the ignition. If the fault reappears when the ignition is switched on, replace the computer. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CIRCUIT FOR "EVS3" SEQUENTIAL SOLENOID VALVES

DF087 PRESENT OR STORED

CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts CC = Short circuit

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 7

Electric/hydraulic interface track B10

Repair if necessary. Measure the resistance of the winding of the sequence 1 solenoid valvebetween tracks 1 and 7 of the computer. If the resistance measured is not 40 ohms +/- 2 ohms at 20°C, remove the cover and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question. If all the checks are correct, reconnect the computer connector and the electric/hydraulic interface connector. Switch on the ignition then clear the computer's fault memory, exit from diagnostics mode and switch off the ignition. If the fault reappears when the ignition is switched on, replace the computer. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-35

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF088 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CIRCUIT FOR "EVS5" SEQUENTIAL SOLENOID VALVES CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts CC = Short circuit

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 13

Electric/hydraulic interface track B5

Repair if necessary. Measure the resistance of the winding of the sequence 1 solenoid valvebetween tracks 1 and 13 of the computer. If the resistance measured is not 40 ohms +/- 2 ohms at 20°C, remove the cover and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question. If all the checks are correct, reconnect the computer connector and the electric/hydraulic interface connector. Switch on the ignition then clear the computer's fault memory, exit from diagnostics mode and switch off the ignition. If the fault reappears when the ignition is switched on, replace the computer. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CIRCUIT FOR "EVS4" SEQUENTIAL SOLENOID VALVES

DF089 PRESENT OR STORED

CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts CC = Short circuit

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 8

Electric/hydraulic interface track B7

Repair if necessary. Measure the resistance of the winding of the sequence 1 solenoid valve between tracks 1 and 8 of the computer. If the resistance measured is not 40 ohms +/- 2 ohms at 20°C, remove the cover and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question. If all the checks are correct, reconnect the computer connector and the electric/hydraulic interface connector. Switch on the ignition then clear the computer's fault memory, exit from diagnostics mode and switch off the ignition. If the fault reappears when the ignition is switched on, replace the computer. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF093 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

ONE TOUCH MANUAL CONTROL CIRCUITS

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present during a road test when changing up and down when the selector lever is in position "M" (one-touch control).

Check the connection and condition of the connector controlling gear shift rules. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 36 Computer track 37

Sequential shift rules switch track B6 Sequential shift rules switch track B5

Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-38

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF109 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX ENGINE TORQUE INFORMATION 1DEF 2DEF 3DEF 4DEF

= = = =

Consistency Actual torque Anticipated torque Torque excluding reduction

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-39

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF112 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CIRCUITS FOR "EVS6" SEQUENTIAL SOLENOID VALVES CO.0 = Open circuit or short circuit to earth CC.1 = Short circuit to + 12 volts CC = Short circuit

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present after command AC024 has been run (sequential command of the actuators).

Check the connection and condition of the electric/hydraulic interface connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 14

Electric/hydraulic interface track B2

Repair if necessary. Measure the resistance of the winding of the sequence 1 solenoid valve between tracks 1 and 14 of the computer. If the resistance measured is not 40 ohms +/- 2 ohms at 20°C, remove the cover and carry out the same measurement directly on the solenoid valve. If the resistance is incorrect, replace the solenoid valve. If the resistance is correct, repair or replace the wiring in question. If all the checks are correct, reconnect the computer connector and the electric/hydraulic interface connector. Switch on the ignition then clear the computer's fault memory, exit from diagnostics mode and switch off the ignition. If the fault reappears when the ignition is switched on, replace the computer. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF114 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX PEDAL POSITION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-41

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF116 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX ENGINE SPEED INFORMATION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-42

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF117 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX LEFT REARWHEEL INFORMATION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-43

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF118 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX REAR RIGHT WHEEL INFORMATION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-44

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF119 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

MULTIPLEX BRAKE PEDAL POSITION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-45

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF121 PRESENT OR STORED

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

"PARK" INFORMATION OF THE MULTIFUNCTION SWITCH

Conditions for the application of the diagnostic on the fault stored: NOTES

The fault is stated as present following a command to move the selector lever from position D to position P (Stopping on all the lever positions).

Check the connection and condition of the multifunction connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 15 Computer track 28 Computer track 28

Multifunction switch Multifunction switch Vehicle earth (see wiring diagram)

Repair if necessary. If all the checks are correct, switch on ignition then clear the computer's fault memory. Exit fault finding mode and switch off ignition. Move the selector lever contact to position P or N. If the fault reappears, replace the multifunction switch. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory and switch off ignition. Carry out a road test. Complete the operation by performing a test using the diagnostic tool. DP094081.0

23-46

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF122 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CONNECTION WITH PASSENGER COMPARTMENT COMPUTER

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-47

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF123 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

CONNECTION WITH ABS COMPUTER

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-48

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF126 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

TURBINE SPEED INFORMATION

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-49

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF129 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

PATH CONTROL

Switch on ignition.

Test the multiplex network.

AFTER REPAIR

None

DP094081.0

23-50

SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

DF131 PRESENT OR STORED

NOTES

AUTOMATIC TRANSMISSION Fault Finding - Interpretation of Faults

23

SLIP

Deal with faults DF038 "Turbine speed sensor circuit" and DF048 "Vehicle speed information".

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

NOTES

Order

Function

AUTOMATIC TRANSMISSION 123 Fault finding - Conformity check

Conditions for performance:

Parameter or status Check or action

23

Engine stopped, ignition on.

Display and notes

Fault finding

Status and parameter window

1

Battery voltage

PR008:

Computer supply voltage

11.8 < X < 13.2 V

In the event of a problem, consult the diagnostic PR008

Brake pedal released

2

ET003:

Stop light contact opening

STATUS CONFIRMED

ET004:

Stop light contact closure

STATUS NOT CONFIRMED

Brake pedal Brake pedal applied ET003:

Stop light contact opening

STATUS NOT CONFIRMED

ET004:

Stop light contact closure

STATUS CONFIRMED

Selector in position "P" ET012:

Gear selector position

Selector in position "R" ET012:

Gear selector position

Selector in position "N" 3

Gear selector ET012:

Gear selector position

Selector in position "D" ET012:

Gear selector position

In the event of a problem, consult diagnostics ET003 and ET004

Position "P" confirmed by diagnostic tool

Position "R" confirmed by diagnostic tool

Position "N" confirmed by diagnostic tool

In the event of a problem, consult diagnostic ET012

Position "D" confirmed by diagnostic tool

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

NOTES

Order

Function

AUTOMATIC TRANSMISSION Fault finding - Conformity check

Conditions for performance:

Parameter or status Check or action Selector in position "M" ET012:

3 (Continued)

Gear selector position

"M+" incremental shift Gear selector

ET012:

Gear selector position

"M-" incremental shift ET012:

Gear selector position

23

Engine stopped, ignition on.

Display and notes

Fault finding

Position "M" confirmed by diagnostic tool

"M+" incremental shift confirmed by diagnostic tool

In the event of a problem, consult diagnostic ET012

"M-" incremental shift confirmed by diagnostic tool

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

NOTES

Order

Function

AUTOMATIC TRANSMISSION Fault finding - Conformity check

Conditions for performance:

Parameter or status Check or action

23

Engine warm at idle speed, no electrical consumers.

Display and notes

Fault finding

Status and parameter window 1

Battery voltage

2

Automatic transmission oil temperature sensor

3

Automatic transmission relative pressure sensor

PR 008:

Computer supply voltage

PR 004:

Automatic transmission oil temperature

PR 003:

Oil pressure

13 < X < 14.5 V

In the event of a problem, consult diagnostic PR008

X = Engine temperature ± 5 °C

In the event of a problem, consult diagnostic PR004 In the event of a problem consult diagnostic PR003

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

NOTES

Order

Function

AUTOMATIC TRANSMISSION Fault finding - Conformity check

Conditions for performance:

Parameter or status Check or action

23

Road test.

Display and notes

Fault finding

Status and parameter window

1

Automatic transmission vehicle speed sensor

2

Automatic transmission turbine speed sensor

PR 105:

Vehicle speed

In the event of a problem, consult diagnostic PR105

PR 007:

Turbine speed

In the event of a problem, consult diagnostic PR007

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Diagnostics - Status Interpretation

23

STOP LIGHT CONTACT OPENING ET003 :

NOTES

No faults should be present or stored

Check the connection and the condition of the connector of the stop light switch Change the connector if necessary. Check the stop light switch adjustment and check that the switch is working properly. Change the switch if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 16

Stop light switch track 3

Repair if necessary.

AFTER REPAIR

Restart the conformity check from the beginning.

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Diagnostics - Status Interpretation

23

STOP LIGHT CONTACT CLOSURE ET004

NOTES

No faults should be present or stored

Check the connection and the condition of the connector of the stop light switch Change the connector if necessary. Check the stop light switch adjustment and check that the switch is working properly. Change the switch if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 16

Stop light switch track 3

Repair if necessary.

AFTER REPAIR

Restart the conformity check from the beginning.

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Diagnostics - Status Interpretation

23

GEAR SELECTOR POSITION ET012

NOTES

LEVER POSITION "P"-"R"-"N"-"D"

No faults should be present or stored

Check the installation of the multifunction switch on the automatic transmission. Check the control adjustment (refer to the checking method). Check the connection and condition of the connectors at the computer and the multifunction switch. If necessary change the connectors. Carry out the following checks on the multifunction switch. Continuity Lever in position "P", track A10 Lever in position "R", track A10, A11, A12 Lever in position "N", track A11 Lever in position "D", track A12

Track A7 Track A7 Track A7 Track A7

Insulation Lever in position "P", track A9, A11, A12 Lever in position "R", track A9 Lever in position "N", track A9, A10, A12 Lever in position "D", track A9, A10, A11

Track A7 Track A7 Track A7 Track A7

Disconnect the multifunction switch. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 31 Computer track 32 Computer track 33 Computer track 42

Multifunction switch track A10 Multifunction switch track A11 Multifunction switch track A12 Multifunction switch track A 7

Repair if necessary.

AFTER REPAIR

Restart the conformity check from the beginning.

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Diagnostics - Status Interpretation

23

DF012 (CONTINUED)

NOTES

LEVER POSITION "M", "M+" AND "M-" INCREMENTAL SHIFT

No faults should be present or stored

Disconnect the connector of the sequential shift rules switch. Check the connection and condition of the connector controlling gear shift rules. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 37 Computer track 36

Sequential shift rules switch track B5 Sequential shift rules switch track B6

Repair if necessary.

AFTER REPAIR

Restart the conformity check from the beginning.

DP094081.0

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SIEMENS TA2000 PROGRAMME No.: 94 VDIAG No.: 08

AUTOMATIC TRANSMISSION Fault Finding - Parameters

23

OIL PRESSURE PR003

NOTES

No faults should be present or stored

Check the connection and condition of the oil pressure sensor connector. Change the connector if necessary. Check that the resistance of the oil pressure sensor is not zero or infinity (definite sensor fault). If necessary replace the oil temperature sensor. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 24 Computer track 55 Computer track 25

Oil pressure sensor track C1 Oil pressure sensor track C2 Oil pressure sensor track C3

Repair if necessary.

AFTER REPAIR

Restart the conformity check from the beginning.

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23

AUTOMATIC TRANSMISSION OIL TEMPERATURE PR004

NOTES

No faults should be present or stored

If the value taken is inconsistent, check that the sensor is correctly following the "resistance as a function of temperature" calibration curve. Replace the sensor if the values are incorrect (NOTE: If a sensor is incorrect, this is often due to an electric shock). Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 53 Computer track 54

Oil temperature sensor track B4 Oil temperature sensor track B1

Repair if necessary. Measure the resistance of the oil temperature sensor between tracks 53 and 54 of the computer. The resistance must be between:

2360 and 2660 ohms at 20° 290 and 327 ohms at 80°

If necessary replace the sensor.

AFTER REPAIR

Restart the conformity check from the beginning.

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23

TURBINE SPEED PR007

NOTES

No faults should be present or stored

Check the connection and condition of the turbine speed sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 45 Computer track 46

Turbine speed sensor track D1 Turbine speed sensor track D2

Repair if necessary. Measure the resistance of the turbine speed sensor between tracks 45 and 46 of the computer. If the resistance measured is not 300 ± 40 ohms at 20°C, replace the sensor.

AFTER REPAIR

Restart the conformity check from the beginning.

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COMPUTER SUPPLY VOLTAGE PR008

NOTES

No faults should be present or stored All electrical consumers switched off.

Ignition on If voltage < minimum, the battery is discharged: Check the charging circuit to determine the cause of this fault. If voltage > maximum, the battery may be overcharged: Check that the charging voltage is correct with and without consumers.

Engine at idle speed If voltage < minimum, the charging voltage is too low: Check the charging circuit to determine the cause of this fault. If voltage > maximum, the charging voltage is too high: The alternator regulator is faulty.

AFTER REPAIR

Restart the conformity check from the beginning.

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VEHICLE SPEED PR105

NOTES

No faults should be present or stored

Check the connection and condition of the vehicle speed sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and interference resistance of the connections between: Computer track 47 Computer track 48

Vehicle speed sensor track B Vehicle speed sensor track A

Repair if necessary. Measure the resistance of the gearbox output speed sensor between tracks 47 and 48. If the resistance measured is not 1200 ohms ± 200, replace the sensor.

AFTER REPAIR

Restart the conformity check from the beginning.

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23

REPLACING THE COMPUTER The transmission oil age information contained in the computer to be replaced must be loaded into the new computer the automatic transmission computer is replaced. Use the following procedure: – Using parameter PR133 (Oil age counter), read the oil age value from the memory of the computer being replaced and note the value. – Replace the computer. Enter the oil age value into the memory of the new computer using the command CF320 (oil age counter report).

CHANGING THE AUTOMATIC TRANSMISSION OIL The oil age counter must be reset when the automatic transmission oil is changed. It is reset by entering the date of the oil change using command CF074 (Write date of gearbox oil change).

INFORMATION ON REPLACING COMPONENTS The computer of the DP0 automatic transmission uses self-adapting parameters for gear change management and the lock-up function. These self-adapting parameters enable the pressure and fill times for the brakes and clutches to be optimised as a function of the specific mechanical/hydraulic characteristics of each automatic transmission. Therefore, replacing any component that influences these parameters requires the stored values to be updated. The self-adapting parameters are reset using command RZ005. After using command RZ005, it is important to carry out a test drive performing all gear changes, both up and down, several times in order to store the new values. Reset the self-adapting parameters after replacing the following components: – – – –

Hydraulic distributor. Torque converter. Pressure modulating solenoid valve. The entire automatic transmission.

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Technical specifications of the components at 20°:

EVSL:

B1 / B2 6 track console connector:

43 ohms

EPDE:

E1 / E2 blue connector (2/12 A):

38.5 ohms

EVS1:

B3 / B11 yellow connector:

39.4 ohms

EVS2:

B3 / B8 yellow connector

38.7 ohms

EVS3:

B3 / B10 yellow connector:

39.2 ohms

EVS4:

B3 / B7 yellow connector:

39.1 ohms

EVS5:

B3 / B5 yellow connector:

39.5 ohms

EVS6:

B3 / B2 yellow connector:

39.9 ohms

EVLU:

B6 / B12 yellow connector:

1.7 ohms

EVM:

B9 / B12 yellow connector:

1.7 ohms

Oil T°:

B1 / B4 yellow connector:

2500 ohms at 20° / 1300 ohms at 40°

Turbine speed:

D1 / D2 yellow connector:

297 ohms (300 ± 40)

Vehicle speed:

A / B black connector:

1200 ohms (1200 ± 200)

Line pressure sensor:

C1 / C3 green connector:

20 K ohms

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NOTES

AUTOMATIC TRANSMISSION Fault finding - Customer complaints

23

Consult "Customer complaints" only after carrying out diagnostics using the diagnostic tool and after completing the conformity check.

ENGINE STARTING PROBLEMS

The starter does not engage when the selector lever is in the P or N positions.

AUTOMATIC TRANSMISSION OPERATING PROBLEMS

CHART 2

CHART 0

No forward and/or reverse movement.

CHART 5

Late engagement with engine racing followed by a jolt when starting.

CHART 5

The vehicle moves sluggishly when starting.

CHART 5

Jolts, slip or engine racing when changing gear.

CHART 5

No gear changing possible, vehicle stuck in one gear.

CHART 5

One or more of the gears is missing.

CHART 5

Automatic transmission malfunctions during gear changes.

CHART 6

Untimely gear change.

CHART 3

OTHER PROBLEMS

Computer does not communicate with diagnostic tool.

CHART 7

Reversing lights do not work.

CHART 8

Oil present under the vehicle.

CHART 9

Selector lever does not lock when in "Park" position.

CHART 10

Selector lever stuck in "Park" position (not possible to unlock it by depressing the brake pedal).

CHART 11

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CHART 2

THE STARTER DOES NOT ENGAGE WHEN THE LEVER IS IN P/N.

NOTES

Consult "Customer complaints" only after carrying out a diagnostic using the diagnostic tool and after completing the conformity check.

Check that the diagnostic tool display is consistent with the selector lever positions. no

Is it consistent?

Check the mountings of the multifunction switch. Check the control adjustment using the method described in the Technical Note.

yes Switch off ignition, disconnect the automatic transmission connector. When the starter is activated, check that there is 12 volts on track A5 of the 12 track green module on the vehicle wiring side. Is there 12 volts on track A5?

no

yes

Check the starter relay. Check the continuity of the connections between track A5 of the automatic transmission connector and the ignition switch relay. Ensure that the ignition switch is working properly.

Check the power circuit of the starter relay and the starter.

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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CHART 3

UNTIMELY GEAR CHANGES

NOTES

Consult "Customer complaints" only after carrying out a diagnostic using the diagnostic tool and after completing the conformity check.

Does the display for the selector lever position change when the fault appears (position D disappears)?

no

Check how the automatic transmission wiring is routed (high voltage interference). Modify if necessary.

yes Check the adjustment of the external control. If the fault persists, replace the multifunction switch.

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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CHART 0

– Run the verification cycle for checking the consistency of the information used by the DP0 and coming from the multiplex network. – Run the verification cycle for checking that the information sent by the DP0 on the multiplex network has been taken into account properly. (See associated documents.)

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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AUTOMATIC TRANSMISSION OPERATING PROBLEMS

CHART 5

Consult "Customer complaints" only after carrying out a diagnostic using the diagnostic tool and after completing the conformity check. NOTES

If the engine races when shifting between 1st and 2nd when the system is cold (transmission oil temperature less than 15°C), replace the pressure modulation solenoid valve (EVM).

– Begin with the Chart 0 cycle Using the diagnostic tool, check the consistency between the display and the selector lever positions (ignition on and engine stopped). Is it consistent?

no

Adjust the controls following the instructions in the Technical Note.

yes

Replace the automatic transmission

yes

Replace the pressure sensor.

yes

Replace the pressure sensor. Repeat the check after replacement.

yes Check the oil level and the condition of the oil (colour, odour...). Does the condition of the oil suggest there is an internal fault in the automatic transmission? no With the engine stopped, check the line pressure information supplied by the pressure sensor. Is the value more than 0.2 bar? no Check the oil level. Fit a pressure gauge to the pressure measurment tapping on the automatic transmission housing (if a level check has already been carried out, ensure that the oil temperature is greater than 20°C before continuing). Note the line pressure indicated by the pressure gauge and by the diagnostic tool in the following conditions: – Brakes applied, lever in D position and engine speed = 1200 rpm. Do the readings on the pressure gauge and the diagnostic tool differ by more than 0.5 bar? no

AFTER REPAIR

On completion of the work, clear the computer's fault memory and the self-adapting parameters by using the command. Refer to the "Help" chapter for information on resetting the oil age counter (enter the date if changing the automatic transmission oil). DP094081.0

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CHART 5 (CONTINUED 1)

Automatic transmission oil between 60° and 90°, brakes applied and lever in D position, place a pedal press or a stop on the accelerator pedal to get a stable recorded pressure of approximately 8 bars (engine speed approximately 1300 rpm). Note the values obtained in these conditions, making sure that the engine speed remains stable between the two readings. These measurements must be carried out as quickly as possible so that these conditions do not have to be maintained for too long. Is the difference between the two values more than 0.3 bar?

yes

Replace the pressure modulation solenoid valve (EVM) and the oil. Repeat the check after replacement. If the fault persists, replace the hydraulic distributor and all the solenoid valves.

yes

Replace the automatic transmission

no Start the engine. With the brakes applied, move the selector lever into position D and accelerate, observing the turbine speed information. Does the turbine speed information change? no Refer to the procedure and the safety instructions for carrying out a setting point check on the torque converter. Theoretical value of engine speed at the setting point: 2300 ± 150 rpm. Is the value of the setting point wrong or is there an internal noise in the converter? no

yes

Replace the torque converter, the lockup solenoid valve (EVLU) and the oil. If the oil is burnt, also replace the hydraulic distributor and all the solenoid valves. When replacing the torque converter, ensure that the reaction shaft is securely attached to the hub of the oil pump (clinched shaft). Note: A setting point which is too low may be linked to a lack of engine power.

AFTER REPAIR

On completion of the work, clear the computer's fault memory and the self-adapting parameters by using the command. Refer to the "Help" chapter for information on resetting the oil age counter (enter the date if changing the automatic transmission oil). DP094081.0

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CHART 5 (CONTINUED 2)

Carry out a road test, observing the engine speed on the instrument panel and the displays on the diagnostic tool (refer to the Help chapter). Does the engine speed change each time there is a gear change?

no

Replace the hydraulic distributor and all the solenoid valves.

yes

The checks carried out have not provided any evidence of a fault and the automatic transmission appears to be working correctly. If the vehicle does show the customer complaint selected, continue with the entire diagnostic procedure.

AFTER REPAIR

On completion of the work, clear the computer's fault memory and the self-adapting parameters by using the command. Refer to the "Help" chapter for information on resetting the oil age counter (enter the date if changing the automatic transmission oil). DP094081.0

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CHART 6

AUTOMATIC TRANSMISSION MALFUNCTIONS DURING GEAR CHANGES

NOTES

Consult "Customer complaints" only after carrying out the diagnostic using the diagnostic tool and after completing the conformity check.

– Begin with the chart 0 cycle The automatic transmission may show up malfunctions during gear changing without any fault being stored in the computer. These malfunctions may be due to contact resistance problems on the control lines of the sequence and progressivity solenoid valves (EVS1 to EVS6) preventing the self-diagnostic system from detecting a fault in the solenoid valve or preventing the solenoid valves from being controlled. Check the clamping action and condition of the clips on all the connections to the solenoid valve control lines (from the computer to the solenoid valve).

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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CHART 7

NOTES

23

NO DIALOGUE BETWEEN COMPUTER AND DIAGNOSTIC TOOL.

None

Ensure that the diagnostic tool is not the cause of the fault by trying to communicate with a computer on another vehicle. If the diagnostic tool is not the cause of the fault and dialogue cannot be established with any other computer on the same vehicle, it may be that a faulty computer is disrupting fault finding lines K and L. Disconnect the computers one at a time to locate the fault. Check the battery voltage and carry out the operations necessary to obtain the correct voltage (8.7 volts < battery voltage < 16 volts).

Check whether the 7.5A fuse for the automatic transmission on the fuse board has blown If the 7.5A fuse is replaced but blows again as soon as the ignition is switched back on, give priority to finding a short circuit to earth of the + after ignition feed supply of the computer or the EVM and EVLU solenoid valves (tracks in question: 26 and 27 of the computer). Check the connection and condition of the connectors at the computer connector. Check that the computer is correctly supplied: – Earth on track 28. – + after ignition feed on track 27.

Check that the diagnostic socket is correctly supplied: – Earth on track 5 of the diagnostic socket. – Before ignition feed on track 16 of the diagnostic socket. Check and ensure the continuity and insulation of the lines connecting the diagnostic socket and the computer: – Between track 17 of the computer connector and track 15 of the diagnostic socket. – Between track 18 of the computer connector and track 7 of the diagnostic socket.

If dialogue is still not established after these various checks, replace the computer and clear the fault memory after completion of the work (see "Help" chapter.

AFTER REPAIR

When communication is established, deal with any faults present or stored.

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CHART 8

REVERSING LIGHTS DO NOT WORK (Reverse gear works and the bulbs are OK)

NOTES

Consult "Customer complaints" only after carrying out the diagnostic using the diagnostic tool and after completing the conformity check.

Switch off ignition, disconnect the automatic transmission connector. Switch ignition back on and check that there is + after ignition feed on track A2 of the 12 track green moduleon the vehicle wiring side. Is there + after ignition feed on track A2?

no

yes

Ensure the continuity of the connection between track A2 of the 12 track green module and the passenger compartment interconnecting unit.

Switch off ignition and check the continuity between tracks A1 and A2 of the 12 track green module on the gearbox side, with the lever in position R. If continuity is not provided, replace the multifunction switch. If continuity is good, ensure there is continuity between track A1 of the module on the vehicle wiring side and the reversing lights. Also check the rear lights earth.

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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CHART 9

OIL PRESENT UNDER THE VEHICLE

NOTES

Consult "Customer complaints" only after carrying out the diagnostic using the diagnostic tool and after completing the conformity check.

Wash the automatic transmission, check the oil level using the method described in the Technical Note, mop up the leak and locate its origin. Deal with the source of the leak and replace the faulty components. Check the oil level

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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CHART 10

LEVER DOES NOT LOCK WHEN IN PARK POSITION

NOTES

Consult "Customer complaints" only after carrying out the diagnostic using the diagnostic tool and after completing the conformity check.

If there is no fault identified in the shift-lock electromagnet, check the operation of the stop light switch. If fault DF005 is not displayed without the brake pedal being depressed, apply the diagnostic associated with this fault (refer to the section on interpreting bargraphs). If the customer complaint persists, look for a mechanical problem on the lever locking mechanism.

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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CHART 11

SELECTOR LEVER STUCK IN PARK POSITION

NOTES

Consult "Customer complaints" only after carrying out the diagnostic using the diagnostic tool and after completing the conformity check.

If there is no fault identified in the shift-lock electromagnet, check the operation of the stop light switch. If fault DF005 is displayed when the brake pedal is depressed, perform the diagnostic associated with this fault (refer to the section on interpreting bargraphs). If the customer complaint persists, look for a mechanical problem on the lever locking mechanism.

AFTER REPAIR

Perform a road test then check with the diagnostic tool.

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