N60 ENTG ECM CAN Messages Interface_ECM CAN Messages - 27_CNG_1Box.pdf
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Description
Version 2.7 16.06.10
Description of ECM CAN Messages Interface Engine Controller Architecture (One-Box)
Version 2.7
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 1 of 54
Version 2.7 16.06.10
Document history Version 1.0 1.1
Date 05.07.02 27.11.02
Author M. Prata M. Prata
1.2 1.3 1.4 1.5
internal 26.03.03 02.04.03 12.06.03
M. Prata M. Prata M. Prata M. Prata, S. Salio
1.6
29.07.03
M. Prata
1.7
01.04.04
M.Prata
Reason of changes first issue EEC1 engine torque mode : new value for VCM control (1110b) ERC1-ER retarder torque mode: new value for VCM control (1110b) INCOND two additional supported signals (where sensor are mounted): • particulate trap inlet pressure • exhaust gas temperature DM1 one additional supported signal: • malfunctioning indicator lamp status DM2 one additional supported signal: • malfunctioning indicator lamp status VCM2ECM change in the signal used to demand the low idle speed setpoint ETC1 used to inform the ECM on a request for momentary engine overspeed DASH DISPLAY used to inform the ECM about the fuel tank level internal version th complete revision after the meeting hold on 13 march 2003 bug fixing ERC1 EDC2BC message: new value (0111b) in cold start heater status NOx sensor TX: change of message content NOx sensor Rx: new message DM1_ECM message: add remark on OBD lamp management ECM2SCR: signals added DM1_SCR message: add remark on OBD lamp management OBD messages (ISO 15765-4): new IDs (different from the not applicable IDs used for KWP2000 messages). Updated bus load, due to the new message NOx sensor Rx Foot note added to chapter 3 “General Remarks” about the SCR transmitted message NOx sensor RX ERC1-ER message: new value (1000b) in retarder torque mode EDC2BC message: new signal “OBD MIL status” EFLP message: new signal “Fuel Delivery Pressure” TSC1-VE messages: new comments on external demands from the VCM TSC1-VER message: add note on zero torque control VCM2ECM: changed comment for “Intermediate Speed Governor Additional Parameters Set” BC2EDC1 bugfix: signal “MIL visualization available” in bits 1-2 DM1_ECM and DM1_SCR: new remark for OBD lamp management DM1_SCR: removed comments for SPN ENG_CONF message: new schedule time. Additional comments on transmitted speed and torque values Fuel Consumption message: synchronous transmission time, 1 second Engine Hours Revolutions message: synchronous transmission time, 1 second EDC2BC message: new signals “Engine Compartment Start Button” and “Engine Compartment Stop Button”. Corrected position of “Engine Overspeed”. “Air compressor status” cancelled. Two new values for “Cold Start Heater Status”. Change in “Fuel Block Status by the Immobilizer”. ECM2SCR message: change in scale for “NOx Estimation Ratio” TSC1-VE messages: change in comments for VE1 and VE2 usage TSC1_VER message: description for immediate engine retarder shut off and comments on torque control/limit to 0 CCVS: three additional states in the signal “PTO State”. New signal “Cruise Control Active”. BC2EDC1: added comments on not used signals. BC2EDC2 message: new signal “Mechanical PTO Engaged”. Added comments on not used signals. DM13 message: signal “Network #2” not used NOx sensor TX message: change in “NOx Concentration” data range DM1 packets from SCR: unused bytes of last packet filled with all 1’s. KWP2000 diagnostic messages for ECM and SCR: Tester ID changed from F1 to FA (v70)
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
1.8
18.10.04
P. Gamba, M. Prata, M. Rossotto S. Salio
1.9
2.0
5.04.05
2.05.06
M. Prata
M. Rossotto M. Prata
2.1
15.02.08
M. Prata
EEC1 message: added condition FEh in “Actual Engine percent torque” signal in case of error EEC2 message: added condition FEh in “Percent Load at Current Speed” signal in case of an error in engine speed or in injection path EEC3 message: added condition FEh in “Engine’ s desired operating speed” and “Engine’ s operating speed asymmetry adjustment” signals in case of an error in engine speed EDC2BC message: corrected values corresponding to “Not defined” states in “Cold Start Heater Status” signal. EDC2BC Message: added in “Humidity Ratio” signal the condition FFh when the sensor is not present. EDC2BC Message: added in “Fuel Block Status by the Immobilizer” signal the condition “No Immobilizer”. EDC2BC message: new value for “EDC Operational Status” ENG_CONF Message: changed schedule time from 5000ms and in case of change of torque/speed of more than 10% to 1000ms. STODBAM and STODPACK message: change in number of packets transmitted into the flight recorder data from 82 to 83. DM1BAM/DM2BAM/DM4BAM message: change in message ID from 1C EC FF 00 to 18 EC FF 00. DM1PCK/DM2PCK/DM4PCK message: change in message ID from 1C EB FF 00 to 18 EB FF 00. DM11Ack message: change in “Status Byte” Fuel Consumption Message: sent on request and no longer every 1000ms. Engine Hours Revolution: sent on request and no longer every 1000ms. STODBAM and STODPCK messages: added procedure to obtain information from the trip recorder. VCM2ECM message: added signal “Underbraking Status” ETC1 message: added signal “Shift in Process” EEC1: signal “Engine starter mode”, for ECM request to stop cranking EDC2BC: new signal “ECM Fuelling state” DM1, DM2, DM4 multipackets – Priority changed from 6 to 7 ETC1: new signal “Driveline Engaged” ETC2: new message and signals “Current gear”, “Actual gear ratio” e “Selected gear” BC2EDC2: new signal “Retarder Torque Mode” KWP2000 and OBD services: updated ID’s EDC2SCR: added byte 8 with new signals “Request for OBD Monitoring Suppression”, “PTO Active”, “Long Term Error Active in EDC” and “NOx Level” VCM2ECM message: modified the “Low idle speed setpoint” description (byte 3-4) BC2EDC2 message: modified the description of “engine shutdown request” (byte 5, bit 4-3) SCR1 message: added byte 5 “Urea Pressure” and byte 8 “SCR OBD STATUS” signals (some signals available in Denox2 system only) TSC1_VE_Control_2: new message to manage the “third TSC1” feature BC2EDC1: comment corrected SCR_Status1: comments corrected DM1, DM2, DM4: docu correction for FMI values (no signal, not plausible) DM4: docu correction for data transmission in case of no failure DM1, DM2 multipacket: docu correction, filling of last packet
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
2.2
09.02.10
C. Giordano
CHANGES FOR 2-BOX CNG APPLICATION TSC_VE_Limit: modified comment TSC_VE_Control: modified comment TSC_VE_Control_2: modified comment CCVS: message not receiveved but transmitted by ECM ERC1_ER: repetition rate is slower than SAE reference EEC3: Custom use of Byte7-8 for Intake Air Pressure Efficiency Eng_Fld_Lev_Press: Custom use of Byte1 for Tank inlet pressure, with custom range and resolution BC2EDC2: Custom use of Byte3 for Staus of Neutral switch OBD Response message OBD_resp_ECM: custom identifier OBD Request message OBD_req_VCM_to_ECM: custom identifier List of TX messages not evaluated by ECM AMB_COND_E FAN_DRIVE ELT_POWER Fuel Economy Fuel Consumption ENG_HOURS_REV ECM2IMMO Flight Recorder Data STODBAM (Broadcast Announce Message) STODPACK (Transport Protocol – Data Transfer) Diagnostic Message #2 from ECM – DM2 single DM2_ECM DM2BAM (Broadcast Announce Message) DM2PCK (Transport Protocol – Data Transfer) KWP2000 Response message KWP2000_resp_ECM ECM2SCR List of RX messages not evaluated by ECM TSC1_VER Dash Display AMB_COND_V IMMO2ECM Diagnostic Message #13 STOP START BROADCAST – DM13 KWP2000 Request message KWP2000_req_VCM_to_ECM TCO1 Vehicle Distance SCR_status1 SCR_status2 NOx sensor TX NOx sensor RX ACTIVE DIAGNOSTIC TROUBLE CODES (DM1) — DM1_SCR DM1BAM (Broadcast Announce Message) DM1PCK (Transport Protocol - Data Transfer) KWP2000 Request message KWP2000_req_VCM_to_SCR KWP2000 Response message KWP2000_resp_SCR OBD Request message OBD_req_VCM_to_SCR OBD Response message OBD_resp_SCR List of messages with some part not evaluated by ECM: EEC3 ENG_TEMP INLET_COND Shutdown EDC2BC TSC1_VE_Limit TSC1_VE_Control TSC1_VE_Control2 ETC1 VCM2ECM BC2EDC1 BC2EDC2
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
2.3
10.02.10
C. Giordano
CHANGES FOR 1-BOX CNG APPLICATION TSC1_VE_Limit: modified comment TSC1_VE_Control: modified comment TSC1_VE_Control_2: modified comment List of New Messages: ENG_HOURS_REV: Byte1-4 evaluated total engine hours; Byte5-8 evaluated total engine revolution ALTERNATE_FUEL: Byte2-3 evaluated Tank inlet pressure (SAE ref.) CCVS-TX: evaluated this message not only in transmission but also in reception (SAE ref) TCO1: Byte7-8 Vehicle speed from tachograph List of new signals: EEC1: Byte2 evaluated Drivers Demand Engine Percent Torque EEC2: Byte1 evaluated Accelerator Pedal Low Idle switch and Accelerator Pedal Kick Down switch; Byte2 evaluated Accelerator Pedal position
2.4
03.05.10
C. Giordano
CHANGES FOR 1-BOX CNG APPLICATION Deleted all messages not managed by ECM TCO1: Tachograph Output Shaft Speed Byte6-5 are not used EEC1: modified Engine Torque Mode some values are not used EEC2: Byte1 evaluated switchs on accelerator pedal position EEC2: Byte2 evaluated accelerator pedal position EEC3: Byte2…3 evaluated only in PTO mode TSC1: modified comment on TSC1 management TSC1_VE_Limit: tunable address TSC1_VE_Control: tunable address TSC1_VE_Control_2: tunable address CCVS-RX: tunable address rd BC2EDC1: Byte3 used as 3 speed limiter
2.5
05.05.10
C. Giordano
CHANGES FOR 1-BOX CNG APPLICATION TSC1: modified comment on TSC1 management CCVS-RX: modified comment on CCVS management PGN Request – Req_ECM_VCM: deleted some parameter set
2.6
19.05.10
C. Giordano
CHANGES FOR 1-BOX CNG APPLICATION Alternate Fuel #1: corrected message ID and Gas Supply Pressure signal properties VCM2ECM: Byte8 used to start the fuel heating procedure CCVS-TX: Cruise Control Set Speed modified comment EEC3: Engine’s Desired Operating Speed modified comment
2.7
16.06.10
C. Giordano
CHANGES FOR 1-BOX CNG APPLICATION Engine_Configuration – ENG_CONF: corrected message repetition rate VCM2ECM: modified comment for Byte1-2 High Idle SetPoint and Byte3-4 Low Idle SetPoint EEC1: corrected info on repetition rate
Changes from previous version are yellow highlighted.
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
Table of Contents 1.
Messages .......................................................................................................................................................... 7 1.1.
ECM Transmitted messages ......................................................................................................................... 7
1.1.1.
Electronic Engine Controller #1 – EEC1 .................................................................................................................7
1.1.2.
Electronic Engine Controller #2 – EEC2 ...............................................................................................................10
1.1.3.
Electronic Engine Controller #3 – EEC3 ...............................................................................................................11
1.1.4.
Engine Configuration – ENG_CONF .....................................................................................................................12
1.1.4.1.
CNFBAM (Broadcast Announce Message) ...................................................................................................12
1.1.4.2.
CNFPCK (Transport Protocol – Data Transfer).............................................................................................13
1.1.5.
Engine Temperature ENG_TEMP.........................................................................................................................17
1.1.6.
Inlet / Exhaust conditions INLET_COND...............................................................................................................18
1.1.7.
Engine Fluid Level/Pressure – Eng_Fld_Lev_Press .............................................................................................19
1.1.8.
Shutdown – Shutdown ..........................................................................................................................................20
1.1.9.
Engine Hours/Revolution Eng_Hours_Rev .........................................................................................................21
1.1.10.
EDC to Body Computer – EDC2BC ......................................................................................................................22
1.1.11.
Cruise control / Vehicle speed from Vehicle Controller CCVS-TX.........................................................................25
1.1.12.
Alternate Fuel #1...................................................................................................................................................27
1.1.13.
Diagnostic Message #1 from ECM – DM1 single - DM1_ECM ............................................................................28
1.1.14.
Diagnostic Message #1 from ECM – DM1 multipacket .........................................................................................31
1.1.14.1.
DM1BAM (Broadcast Announce Message)...................................................................................................31
1.1.14.2.
DM1PCK (Transport Protocol – Data Transfer).............................................................................................31
1.1.15.
Diagnostic Message #4 from ECM – DM4 single DM4_ECM................................................................................33
1.1.16.
Diagnostic Message #4 from ECM – DM4 multipacket .........................................................................................36
1.1.16.1.
DM4BAM (Broadcast Announce Message)...................................................................................................36
1.1.16.2.
DM4PCK (Transport Protocol – Data Transfer).............................................................................................36
1.1.17.
Diagnostic Message #11 Acknowledge from ECM – DM11ack.............................................................................38
1.1.18.
OBD Response message OBD_resp_ECM .........................................................................................................39
1.2.
ECM Received Messages ........................................................................................................................... 40
1.2.1.
Torque / Speed Control #1 to Engine : TSC1_VE_Limit .......................................................................................41
1.2.2.
Torque / Speed Control #1 to Engine : TSC1_VE_Control ...................................................................................42
1.2.3.
Torque / Speed Control #1 to Engine : TSC1_VE_Control_2................................................................................43
1.2.4.
Cruise control / Vehicle speed from Engine Controller CCVS-RX.........................................................................44
1.2.5.
Electronic Transmission Controller #1 from TC to all devices - ETC1..................................................................47
1.2.6.
Electronic Transmission Controller #2 from TC to all devices - ETC2..................................................................48
1.2.7.
Vehicle Controller to ECM
1.2.8.
BC2EDC1..............................................................................................................................................................51
1.2.9.
Tachograph – TCO1 .............................................................................................................................................52
1.2.10.
PGN Request – Req_ECM_VCM..........................................................................................................................53
1.2.11.
OBD Functional Request message OBD_req_VCM_to_all...................................................................................54
1.2.12.
OBD Request message OBD_req_VCM_to_ECM................................................................................................54
- VCM2ECM .............................................................................................................49
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
1. Messages 1.1.
ECM Transmitted messages
1.1.1.
Electronic Engine Controller #1 – EEC1
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
0C F0 04 00
time synchronous 10 ms
Ref SAE J1939/71 par 5.3.7
Message Template Byte 1
Byte 2
Byte 3
DRIVERS DEMAND ENGINE PERCENT TORQUE
ACTUAL ENGINE PERCENT TORQUE
ENGINE SPEED
SAE J1939/71 Reference
5.2.1.4
5.2.1.5
5.2.1.9
5.2.5.298
5.2.7.???
Scale
1%/bit
1%/bit
0.125 rpm/bit
1/bit
1%/bit
Offset
-125 %
-125 %
0 rpm
0
-125 %
-125 to +125 %
-125 to +125 %
0 to +8031,875 rpm
0 to 253
-125 to +125 %
0 to +125 %
0 to +125 %
Parameter
STATUS_EEC1
Data Range Operating Range Remarks
See parameter description below
ECM CAN Messages - 27_CNG_1Box.doc
Byte 4
Byte 5
Byte 6
Byte 7
SOURCE ADDRESS ENGINE OF CONTROLLING STARTER DEVICE FOR MODE ENGINE CONTROL
Feh in case of error
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Byte 8 ENGINE DEMAND PERCENT TORQUE
0 to +125 % See parameter description below
Version 2.7 16.06.10
Parameter
STATUS_EEC1 Bit 8-5
Definition
Bit 4-1
Not defined
ENGINE TORQUE MODE
SAE J1939/71 Reference Operating range
5.2.2.1 0000b 0001b 0010b 0011b 0100b 0101b 0110b 0111b 1000b 1001b 1010b 1011b 1100b 1101b 1110b 1111b
Idling Accelerator Pedal governor Cruise Control (not used) Power Take Off governor Road Speed limiter (not used) ASR control (not used) Transmission control (not used) ABS control (not used) Torque limiter High speed governor Retarder control (not used) Not defined Fuel limitation (not used) Torque demand (not used) Speed demand (not used) Not available
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
Parameter
ENGINE STARTER MODE Bit 8-5
Definition
Bit 4-1
Not defined
ENGINE STARTER MODE
SAE J1939/71 Reference
5.2.7.?
Operating range
Remarks
0000b 0001b 0010b 0011b 0100b 0101b 0110b 0111b 1100b 1110b 1111b Always set to 1111b
ECM CAN Messages - 27_CNG_1Box.doc
Start not requested (not used) Starter active, gear not engaged (not used) Starter active, gear engaged (not used) Starter finished (not used) Starter inhibited due to engine already running (not used) Starter inhibited due to engine not ready for start (not used) Starter inhibited due to driveline engaged (not used) Starter inhibited due to Immobilizer (not used) Started inhibited – reason unknown (not used) Error (ECM request to stop cranking) Not available (no ECM request to stop cranking)
Only values 1110b and 1111b are supported in the two-box CAN interface. Cranking logics and actuations not in the ECM.
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Version 2.7 16.06.10
1.1.2.
Electronic Engine Controller #2 – EEC2
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
0C F0 03 00
time synchronous 50 ms
Ref SAE J1939/71 par 5.3.6
Message Template Byte 2
Byte 3
Byte 4
Byte 5-8
ACCELERATOR PEDAL
PERCENT LOAD AT CURRENT SPEED
REMOTE ACCELERATOR
Not used
POSITION
5.2.1.8
5.2.1.7
5.2.1.59
Scale
0.4% / bit
1% / bit
Offset
0
0
0 to +100 %
0 to +125%
Byte 1 Parameter
STATUS_EEC2
SAE J1939/71 Reference
Data Range Operating Range Remarks
Parameter
Feh in case of an Not evaluated by error in engine speed ECM – FFh or in injection path
STATUS_EEC2 Bit 8-5
Definition
Not defined
SAE J1939/71 Reference Operating range
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
Bit 4-3 STATUS OF ACCELERATOR PEDAL KICK DOWN SWITCH
Bit 2-1 STATUS OF ACCELERATOR PEDAL LOW IDLE SWITCH
5.2.2.5
00b kick down passive 01b kick down active
5.2.2.4
00b Not idling 01b Idling
Computed on the basis of the accelerator pedal position and of the programmable kick-down threshold
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Version 2.7 16.06.10
1.1.3.
Electronic Engine Controller #3 – EEC3
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE DF 00
time synchronous 250 ms
Ref SAE J1939/71 par 5.3.13
Message Template Byte 1 Parameter
NOMINAL FRICTION PERCENT TORQUE
Byte 2
Byte 3
ENGINE’S DESIRED OPERATING SPEED
Byte 4 ENGINE’S OPERATING SPEED ASYMMETRY ADJUSTMENT
Byte 5 Not defined
Byte 6
Byte 7
Byte 8
INTAKE AIR EFFICIENCY
PRESSURE
SAE J1939/71 Reference
5.2.1.6
5.2.1.10
5.2.1.16
Scale
1 % /bit
0.125 rpm/bit
1%/bit
0.001/bit
Offset
-125 %
0 rpm
0
0
-125 to +125 %
0 to +8031,875 rpm
0 to +250
0 to 3
Data Range Operating Range Remarks
0 to +125 % Nominal engine friction – percent torque (related to the maximum engine torque)
Indication of optimal engine speed in PTO mode, reset to 0 otherwise
Engine’s preference of lower versus higher engine speeds should its desired speed not achievable
Feh in case of engine speed Feh in case of engine speed error error
Not evaluated by ECM – FFFFh
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Engine’s load factor (1 is the maximum value for aspirated engines) Used only for CNG application Not Standard SAE
Version 2.7 16.06.10
1.1.4.
Engine Configuration – ENG_CONF
The ECM supports the Mode 2 for the engine characteristic, according to SAE J1939/71 Surface Vehicle Recommended Practice – Parameter group ENGINE CONFIGURATIon – Mode 2. ENGINE CONFIGURATIon – Mode 2 provides a HIGH IDLE point where torque equals zero and the ENDSPEED GOVERNOR GAIN Kp. The engine configuration is transmitted as a multi-packet message, consisting of a broadcast announce message and 4 sequential packets with the specified data.
1.1.4.1.
CNFBAM (Broadcast Announce Message)
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 EC FF 00
time synchronous 5000 ms
This message is used to inform all stations on the CAN that a large message is about to be transmitted. After this broadcast message, individual packages can be transmitted
Message Template Byte 1 Parameter
Assigned value
Byte 2
CONTROL BYTE
Byte 3
Byte 4
TOTAL MESSAGE SIZE, NUMBER OF BYTES
32
28
Byte 5
TOTAL NUMBER OF PACKETS
Byte 6
RESERVED FOR ASSIGNMENT BY SAE
4
Byte 8
PARAMETER GROUP NUMBER OF THE PACKET MESSAGE
FFH
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
Byte 7
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E3FE00H
Version 2.7 16.06.10
1.1.4.2.
CNFPCK (Transport Protocol – Data Transfer)
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 EB FF 00
time synchronous 5000 ms
This is a multipackage message consisting of 4 packets and the interval between individual messages is 50 ms. A characteristic curve for limiting torque is transmitted, according to SAE J1939/71 Surface Vehicle Recommended Practice – Parameter group ENGINE CONFIGURATIon – Mode 2.
4
Reference Torque
Definition
Torque / speed point at idle, variable
Point 2
Torque / speed at highest possible engine speed, fixed applicable
Points 3-5
Torque / speed points between points 1 and 2 to permit linear interpolation over the entire torque range , fixed applicable.
Point 6
High idle speed (torque = 0) , variable
Point 7
Maximum momentary engine override speed (torque = 0) , fixed applicable
2
3 Torque
Point 1
5
1
Endspeed govenor
6 Idle
Speed
High Idle
7
Momentary Overspeed
Speed
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Version 2.7 16.06.10 Message Template Package 1 Byte 1
Byte 2
Package identification 1
Byte 3
Point 1 Engine speed at idle
Byte 4 Point 1 Percent torque at idle
Byte 5
Byte 6
Point 2 Highest possible engine speed
Byte 7 Point 2 Percent torque at highest speed
Byte 8 Point 3 Low byte of engine speed
Package 2 Byte 1
Byte 2
Package identification 2
Byte 3
Point 3 High byte of engine speed
Point 3 Percent torque
Byte 4
Byte 5
Byte 6
Point 4 Engine speed
Point 4 Percent torque
Byte 7
Byte 8
Point 5 Engine speed
Package 3 Byte 1
Byte 2
Package identification 3
Point 5 Percent torque
Byte 3
Byte 4
Point 6 Engine speed at high idle
Byte 5
Byte 6
Gain of endspeed governor
Byte 7
Byte 8
Reference engine torque
Package 4 Byte 1
Byte 2
Package identification 4
Byte 3
Point 7 Maximum momentary engine override speed
Byte 4
Byte 5
Byte 6
Maximum momentary engine override time limit
Byte 7
Byte 8
Not used
Value normalization Value
Scale
Offset
Data Range
0.125 rpm / bit
0 rpm
0 to +8031 rpm
1% / bit
-125%
-125 to +125%
GAIN KP
0.00078125 % engine ref. torque/rpm / bit;
0%/rpm
0 to +50,2 %/rpm
TORQUE
1 Nm / bit
0 Nm
0 to +64 255 Nm
OVERRIDE TIME LIMIT
0.1 s / bit
0s
0 to +25 s
SPEED PERCENT TORQUE
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Operating Range
0 to +125%
Version 2.7 16.06.10 Conditions of maximum torque curve reduction.
ECM will reduce the maximum torque curve indicated in the Engine configuration message in the following conditions: Type of torque limitation Engine overheat protection Atmospheric pressure correction System degradation Multiple switch state VGT permanent defect SCR defect VGT transitory defect External torque limit intervention
Applicability Static (always active) Static (always active) Static (always active) Static (always active) Static (always active) Static (always active) Dynamic (applicable) Dynamic (applicable)
Remarks
Not used in the two-box architecture
Any dynamic condition has a separate applicable switch.
Conditions of low idle increase.
The low idle setpoint, actuated and indicated as point 1 of the Engine Configuration message, can be increased by one of the following events (the max value is selected): Event for low idle increase VCM intervention Low engine temperature Low battery voltage
Remarks
Applicable Applicable
Conditions of high idle decrease.
The high idle setpoint, actuated and indicated as point 6 of the Engine Configuration message, can be increased by one of the following events (the min value is selected): Event for high idle decrease Remarks VCM intervention System degradation Multiple switch state Not used in the two-box architecture Low engine temperature after start Applicable
In case of overspeed demand (via ETC1) the over speed is actuated until an applicable time.
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Version 2.7 16.06.10 Reference speed setpoints calculation. Speed Point in ENG_CONF Point 1 Point 2 Point 3 Point 4 Point 5 Point 6 Point 7 Gain of endspeed governor
Calculation Current low idle speed (dynamic calculation) Application value (static) Application value (static) Application value (static) Application value (static) Current high idle speed (dynamic calculation), including over speed actuation (point 6 = point 7) Application value (static) Current endspeed feedback factor (dynamic calculation)
ECM CAN Messages - 27_CNG_1Box.doc
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Version 2.7 16.06.10
1.1.5.
Engine Temperature ENG_TEMP
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE EE 00
time synchronous 1000 ms
Ref SAE J1939/71 par 5.3.28
Message Template Byte 1
Byte 2
ENGINE COOLANT TEMPERATURE
FUEL TEMPERATURE
ENGINE OIL TEMPERATURE
SAE J1939/71 Reference
5.2.5.5
5.2.5.14
5.2.5.15
Scale
1 °C/bit
1 °C/bit
0.03125 °C/bit
Offset
-40 °C
-40 °C
-273 °C
-40 to +210°C
-40 to +210°C
-273 to +1735°C
Parameter
Data Range
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
TURBO OIL TEMPERATURE
ENGINE INTERCOOLER TEMPERATURE
ENGINE INTERCOOLER THERMOSTAT OPENING
5.2.5.16
5.2.5.6
5.2.5.242
Operating Range Remarks
Feh in case of defective sensor
Feh in case of defective sensor
FE00h in case of defective sensor
Not evaluated by ECM (FFFFh)
Not evaluated by ECM – FFh
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 17 of 54
Not evaluated by ECM (FFh)
Not evaluated by ECM (FFh)
Version 2.7 16.06.10
1.1.6.
Inlet / Exhaust conditions INLET_COND
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE F6 00
time synchronous 500 ms
Ref SAE J1939/71 par 5.3.36
Message Template Byte 1 Parameter
SAE J1939/71 Reference
PARTICULATE TRAP INLET PRESSURE
Byte 2 BOOST PRESSURE
Byte 3 INTAKE MANIFOLD TEMPERATURE
Byte 4 AIR INLET PRESSURE
AIR FILTER DIFFERENTIAL PRESSURE
Byte 6
Byte 7
EXHAUST GAS TEMPERATURE
5.2.5.41
5.2.5.36
5.2.5.4
Scale
0.5 kPa/bit
2 kPa/bit
1 °C/bit
0.03125 °C/bit
Offset
0 kPa
0 kPa
-40 °C
-273 °C
0 to +125 kPa
0 to +500 kPa
-40 to +210 °C
-273 to +1735.0 °C
Data Range
5.2.5.37
Byte 5
5.2.5.45
5.2.5.8
Byte 8 COOLANT FILTER DIFFERENTIAL PRESSURE 5.2.5.44
Operating Range Remarks
Feh in case of Not evaluated Feh in case of Feh in case of defective sensor defective sensor defective sensor by ECM (FFh)
Not evaluated by ECM (FFh)
FE00h in case of defective sensor
Not evaluated by ECM – FFh
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 18 of 54
Not evaluated by ECM (FFh)
Version 2.7 16.06.10
1.1.7.
Engine Fluid Level/Pressure – Eng_Fld_Lev_Press
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE EF 00
time synchronous 500 ms
Ref SAE J1939/71 par 5.3.29
Message Template
Parameter
Byte 1
Byte 2
Byte 3
Byte 4
GAS SUPPLY PRESSURE
EXTENDED CRANKCASE BLOWBY PRESSURE
ENGINE OIL LEVEL
ENGINE OIL
5.2.5.241
5.2.5.72
SAE J1939/71 Reference
Byte 6
Byte 7
Byte 8
CRANKCASE PRESSURE
COOLANT PRESSURE
COOLANT LEVEL
5.2.5.40
5.2.5.38
5.2.5.73
Not evaluated by ECM (FFFFh)
Not evaluated by ECM (FFh)
Not evaluated by ECM (FFh)
PRESSURE 5.2.5.28
Scale
100 kPa/bit
4 kPa/bit
Offset
0 kPa
0 kPa
0 to 25000 kPa
0 to 1000 kPa
Data Range
Byte 5
Operating Range Remarks
Not Standard SAE Feh in case of defective sensor
ECM CAN Messages - 27_CNG_1Box.doc
Not evaluated by ECM (FFh)
Not evaluated by ECM (FFh)
Feh in case of defective sensor
IVECO/FPT CONFIDENTIAL PROPERTY Page 19 of 54
Version 2.7 16.06.10
1.1.8.
Shutdown – Shutdown
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE E4 00
time synchronous 1000 ms
Ref SAE J1939/71 par 5.3.18
Message Template
Parameter
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
IDLE SHUTDOWN_1
IDLE SHUTDOWN_2
REFRIGERANT PRESS_1
LAMP COMMANDS
ENGINE SHUTDOWN_1
ENGINE SHUTDOWN_2
See parameter description below
Not evaluated by ECM
Byte 8
Not defined
SAE J1939/71 Reference Scale Offset Data Range Operating Range Remarks
Not evaluated by ECM
Not evaluated by ECM
Not evaluated by See parameter ECM description below Not evaluated by ECM – FFh
Parameter
ENGINE SHUTDOWN_1
Bit 8-7 Definition SAE J1939/71 Reference
Bit 6-5
ENGINE PROTECTION SYSTEM TIMER STATE 5.2.6.58
ENGINE PROTECTION SYSTEM TIMER OVERRIDE 5.2.6.59
Bit 4-3 ENGINE PROTECTION SYSTEM APPROACHING SHUTDOWN 5.2.6.60
Operating range
Remarks
Not evaluated by ECM (FFh)
ECM CAN Messages - 27_CNG_1Box.doc
Not evaluated by ECM (FFh)
Not evaluated by ECM (FFh)
IVECO/FPT CONFIDENTIAL PROPERTY Page 20 of 54
Bit 2-1 ENGINE PROTECTION SYSTEM HAS SHUTDOWN ENGINE 5.2.6.61 00b No 01b Yes For engine protection or following the shutoff command (BC2EDC2)
Version 2.7 16.06.10
1.1.9.
Engine Hours/Revolution Eng_Hours_Rev
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE E5 00
Send on request
Ref SAE J1939/71 par 5.3.19
Message Template Byte 1-4
Byte 5-8
TOTAL ENGINE HOURS
TOTAL ENGINE REVOLUTIONS
SAE J1939/71 Reference
5.2.5.61
5.2.5.58
Scale
0,05 h/bit
1000 r/bit
Offset
0h
0r
0 to 210 554 060,75
0 to 4 211 081 215 000
Parameter
Data Range Operating Range Remarks
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 21 of 54
Version 2.7 16.06.10
1.1.10.
EDC to Body Computer – EDC2BC
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FF 21 00
time synchronous 50 ms
IVECO Proprietary message
Message Template Byte 1 Parameter
STATUS INFORMATION 1
Byte 2
Byte 3
STATUS INFORMATION 2
Not used
Byte 4 STATUS INFORMATION 3
Byte 5
Byte 6
SWITCH STATUS STATUS INFORMATION 4
Byte 7 STATUS INFORMATION 5
Byte 8 HUMIDITY
Scale
0.4% / bit
Offset
0
Data Range
0 to +100 %
Operating Range Remarks
See parameter description below
See parameter description below
See parameter description below
See parameter description below
See parameter description below
Not evaluated by ECM – FFh
Feh in case of defective sensor FFh if sensor not present From SW v65 Not evaluated by ECM – FFh
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 22 of 54
Version 2.7 16.06.10
STATUS INFORMATION 1
Parameter
Bit 8-7 Definition
Bit 6-5
DIAGNOSTIC LAMP STATUS
FUEL BLOCK STATUS BY THE IMMOBILIZER
00 – Off 01 – On 10 – Reserved 11 – No Action
00 – Fuel released 01 – Fuel blocked 10 – No Immobilizer
Bit 4-1 COLD START HEATER STATUS
SAE J1939/71 Reference Operating range
0000 – Off phase (heather off, lamp off) 0001 – Pre-heating phase (heather on, lamp on) 0010 – Stand by phase with heating (heather on, lamp blinking), cranking recommended. 0011 – Stand by phase without heating (heather off, lamp off) 0100 – Crank phase (heather on, lamp off) 0101 – Crank with extra heating phase (heather on, lamp off) 0110 – Post heating phase (heather on, lamp off 0111 – Temperature pre-evaluation phase (heater off, lamp off) 1000 – Cold start heater test in progress 1001 – Cold start heater activated due to particle filter regeneration (heater on, lamp off) 1010 – 1111 Not defined
From SW v65
Remarks Not evaluated by ECM – 11b
Parameter
Not evaluated by ECM – 11b
STATUS INFORMATION 2 Bit 8-6
Bit 5
Bit 4-3
Bit 2-1
ENGINE OVER TEMPERATURE (PRE-WARNING)
not used
ENGINE OVERSPEED
not used
SAE J1939/71 Reference Definition Operating range
000 – No warning 001 – Pre-warning 010 – Warning 011 – 111 Not defined
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
00 – Normal 01 – Above operating range 10 – Reserved 11 – Not Available
Not evaluated by ECM – 11b
IVECO/FPT CONFIDENTIAL PROPERTY Page 23 of 54
Version 2.7 16.06.10
Parameter
STATUS INFORMATION 3 Bit 8-7
Definition
ECM FUELLING STATE
Bit 6-5
Bit 4-3
Bit 2-1
Not used
Not used
OBD MIL STATUS
SAE J1939/71 Reference Operating range
00 – Ready to inject 01 – Not ready to inject 11 – Not Available (ready to inject)
Remarks
Not evaluated by ECM – 11b
Parameter
SWITCH STATUS Bit 8-7
Definition
00 – Off 01 – On 10 – Blink 11 – Not Available
Bit 6-5
STATUS OF ENGINE COMPARTMENT START BUTTON
STATUS OF ENGINE COMPARTMENT STOP BUTTON
00 – Off 01 – On 10 – Reserved 11 – Not Available
00 – Off 01 – On 10 – Reserved 11 – Not Available
Bit 4-3
Bit 2-1
Not used
Not used
Bit 4-3
Bit 2-1
SAE J1939/71 Reference Operating range
Remarks
Parameter
STATUS INFORMATION 4 Bit 8-7
Definition
Bit 6-5
ENGINE OIL TEMPERATURE HIGH
FUEL FILTER HEATER STATUS
Not used
ENGINE OIL PRESSURE LOW
SAE J1939/71 Reference Operating range
00 – Normal 01 – Above operating range 10 – Reserved 11 – Not Available
Remarks
Not evaluated by ECM – 11b
ECM CAN Messages - 27_CNG_1Box.doc
00 – Off 01 – On 10 – Reserved 11 – Not Available Not evaluated by ECM – 11b
IVECO/FPT CONFIDENTIAL PROPERTY Page 24 of 54
00 – Normal 01 – Below operating range 10 – Reserved 11 – Not Available
Version 2.7 16.06.10
1.1.11.
Cruise control / Vehicle speed from Vehicle Controller CCVS-TX
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE F1 00
time synchronous 100 ms
Ref SAE J1939/71 par 5.3.31
Message Template Byte 1 Parameter
Byte 2
Byte 3
MEASURED_SW1 WHEEL BASED VEHICLE SPEED
SAE J1939/71 Reference
Byte 4
Byte 5
Byte 6
MEASURED_CC_ MEASURED_CC_ CRUISE CONTROL STATE_CC SW1 SW2 SET SPEED
5.2.1.12
5.2.5.47
Scale
1/256 km / h / bit
1 km / h / bit
Offset
0 km / h
0 km / h
0 to 251 km / h
0 to 250 km/h
Data Range
Byte 7
Byte 8 MEASURED_IDLE _SW1
Operating Range Remarks
See parameter description below
Parameter
MEASURED_SW1
See parameter description below
Bit 8-7 Definition
Not defined
Bit 6-5 CRUISE CONTROL PAUSE SWITCH
SAE J1939/71 Reference
ECM CAN Messages - 27_CNG_1Box.doc
Reset to 0 for Cruise Control ShutOff
Not used
Bit 4-3 PARKING BRAKE SWITCH
5.2.?.?
Operating range
Remarks
Not used
Bit 2-1 TWO SPEED AXLE SWITCH
5.2.6.8 00b 01b 10b 11b
5.2.6.1
Not actuated Actuated Error Not available
Not used
IVECO/FPT CONFIDENTIAL PROPERTY Page 25 of 54
Not used
Not used
Version 2.7 16.06.10 Parameter
MEASURED_CC_SW1 Bit 8-7
Definition
STATUS OF CLUTCH SWITCH
SAE J1939/71 Reference Operating range
Bit 6-5 STATUS OF BRAKE SWITCH
5.2.6.12 00b 01b 10b 11b
Bit 4-3 CRUISE CONTROL ENABLE SWITCH
5.2.6.11
Not actuated Actuated Error Not available
00b Not pressed and not defective 01b Pressed and not defective 10b Error (plausibility) 11b Not available
Remarks
00b 01b
STATE_CC Bit 8-6
Bit 5-1
Cruise Control states
PTO state
SAE J1939/71 Reference Operating range
5.2.6.9
Not used
Definition
5.2.2.18
5.2.2.19
000 Off/Disabled 001 Hold 010 Accelerate 011 Decelerate/Coast 100 Resume 101 Set 110 Accelerator override 111 Not available
00000 Off/Disabled 00001 Hold 00010 Remote Hold 00011 Standby 00100 Remote Standby 00101 Set 00110 Decelerate/Coast 00111 Resume 01000 Accelerate 01001 Accelerator Override 01010 Preprogrammed set speed 1 01011 Preprogrammed set speed 2 01100 Preprogrammed set speed 3 01101 Preprogrammed set speed 4 01110 Preprogrammed set speed 5 (not used) 01111 Preprogrammed set speed 6 (not used) 10000 Preprogrammed set speed 7 (not used) 10001 Preprogrammed set speed 8 (not used) 10010-11110 Not defined 11111 Not available
Not used
Not used
ECM CAN Messages - 27_CNG_1Box.doc
CRUISE CONTROL ACTIVE
5.2.6.10
Remarks
Parameter
Bit 2-1
IVECO/FPT CONFIDENTIAL PROPERTY Page 26 of 54
CC switched off CC switched on
Version 2.7 16.06.10
1.1.12.
Alternate Fuel #1
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
18 FE FD 00
time synchronous 500 ms
Ref SAE J1939/71 par 5.3.43
Message Template
Parameter
Byte 1 BLOWER BYPASS VALVE POSITION
Byte 2
Byte 3
Byte 5
GAS SUPPLY PRESSURE
SAE J1939/71 Reference
5.2.1.23
5.2.5.19
Scale
1 gear/bit
0.5 kPa/bit
Offset
-125 gear
0 kPa
-125 to +125 gear
0 to +32.125.5 kPa
Data Range
Byte 4
Operating Range Remarks
Not evaluated by ECM
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 27 of 54
Byte 6 Not defined
Byte 7
Byte 8
Version 2.7 16.06.10
1.1.13.
Diagnostic Message #1 from ECM – DM1 single - DM1_ECM
The transmission of DTCs corresponding to faults with lamp code =0 is selectable by application
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE CA 00
time synchronous 1000 ms and immediately when a fault becomes active/inactive or the Failure Mode Indicator changes
Ref SAE J1939/73 par 5.7.1
Message Template Byte 1 Parameter
LAMPS_STATUS
Byte 2 RESERVED FOR FUTURE SAE ASSIGNMENT
SAE J1939/73 Reference
Byte 3 SUSPECT PARAMETER NUMBER – LEAST BYTE 5.7.1.5
Byte 4 SUSPECT PARAMETER NUMBER – SECOND BYTE
Byte 5
Byte 6
Byte 7
SPN_FMI
SPN_CONV
Not defined
See parameter description below
See parameter description below
FFFFh
5.7.1.5
Scale Offset Data Range Operating Range Remarks
See parameter description below
Always set to FFh
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 28 of 54
Byte 8
Version 2.7 16.06.10
Parameter
Definition
LAMPS_STATUS Bit 8-7
Bit 6-5
Bit 4-3
Bit 2-1
MALFUNCTION INDICATOR LAMP STATUS
RED STOP LAMP STATUS
AMBER WARNING LAMP STATUS
PROTECT LAMP STATUS
SAE J1939/73 Reference Operating range
Remarks
Parameter
5.7.1.2
5.7.1.1 00b 01b
Lamp off Lamp on
00b 01b
5.7.1.3
Lamp off Lamp on
00b 01b
Lamp off Lamp on
Definition
Not evaluated by ECM (11b)
The VCM should evaluate the signal “OBD MIL Status” in EDC2BC. OBD lamp requires a completely separated management from diagnostic lamps and errors
SPN_FMI Bit 8-6 SUSPECT PARAMETER NUMBER – MOST SIGNIFICANT BITS
SAE J1939/73 Reference Operating range
5.7.1.5
Bit 5-1 FAILURE MODE INDICATOR 5.7.1.6 0
Above Normal
1
Below Normal
2
No signal
3
Source high
4
Source low
12
Not plausible
31
Not available
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 29 of 54
5.7.1.4
Version 2.7 16.06.10
Parameter
SPN_CONV Bit 8
Definition
Bit 7-1
SUSPECT PARAMETER NUMBER CONVERSION METHOD
SAE J1939/73 Reference Operating range
OCCURRENCE COUNT
5.7.1.7
5.7.1.8
Always set to 0
0 to 126
valid values
127
not available
Remarks
DM1 single in case of no active DTC Message Template Byte 1 Parameter
LAMPS_STATUS
Byte 2 RESERVED FOR FUTURE SAE ASSIGNMENT
03h
ECM CAN Messages - 27_CNG_1Box.doc
FFh
Byte 3 SUSPECT PARAMETER NUMBER – LEAST BYTE 00h
Byte 4 SUSPECT PARAMETER NUMBER – SECOND BYTE 00h
Byte 5 SPN_FMI
Byte 6 SPN_CONV
00h
IVECO/FPT CONFIDENTIAL PROPERTY Page 30 of 54
00h
Byte 7
Byte 8
Not defined
FFh
FFh
Version 2.7 16.06.10
1.1.14.
Diagnostic Message #1 from ECM – DM1 multipacket
The transmission of DTCs corresponding to faults with lamp code =0 is selectable by application
1.1.14.1.
DM1BAM (Broadcast Announce Message)
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
1C EC FF 00
time synchronous 1000 ms
Ref SAE J1939/73 par 5.7.1
Message Template Byte 1
Byte 2
CONTROL BYTE
Parameter
Assigned value
Byte 3
TOTAL MESSAGE SIZE, NUMBER OF BYTES
TOTAL NUMBER OF PACKETS
32
Remarks
Byte 5
Byte 6
RESERVED FOR ASSIGNMENT BY SAE
Byte 7
Byte 8
PARAMETER GROUP NUMBER OF THE PACKET MESSAGE
FFH Depends on number of faults
1.1.14.2.
Byte 4
CAFÉ00H
Depends on number of faults
DM1PCK (Transport Protocol – Data Transfer)
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
1C EB FF 00
time synchronous 1000 ms
This is a multipackage message and the interval between individual messages is 50 ms. Faults information are packed and the total bytes length can also be a number not multiple of 8, according to SAE J1939/73.
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 31 of 54
Version 2.7 16.06.10 Message Template (example of 4 DTCs) Package 1 Byte 1 Package identification 1
Byte 2 Diagnostic Lamp Status
Byte 3
Byte 4
Reserved (FFh)
Byte 5
Byte 6
Byte 7
Diagnostic Trouble Code (DTC) #1
Byte 8 DTC #2
Package 2 Byte 1
Byte 2
Package identification 2
Byte 3
Byte 4
Byte 5
Byte 6
DTC #2 – continued
Byte 7
Byte 8
DTC #3
Package 3 Byte 1
Byte 2
Package identification 3
ECM CAN Messages - 27_CNG_1Box.doc
Byte 3
Byte 4 DTC #4
Byte 5
Byte 6
Byte 7
Byte 8
Filled with FFh
Filled with FFh
Filled with FFh
IVECO/FPT CONFIDENTIAL PROPERTY Page 32 of 54
Version 2.7 16.06.10
1.1.15.
Diagnostic Message #4 from ECM – DM4 single DM4_ECM
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE CD 00
On request
Ref SAE J1939/73 par 5.7.4
Message Template Byte 1 Parameter
SAE J1939/73 Reference
FREEZE FRAME LENGTH
SUSPECT PARAMETER NUMBER – LEAST BYTE
5.7.4.1
Scale
1 byte/bit
Offset
0
Data Range
Byte 2
Byte 3 SUSPECT PARAMETER NUMBER – SECOND BYTE 5.7.1.5
Byte 4 SPN_FMI
Byte 5
Byte 6
SPN_CONV
Not defined
See parameter description below
FF FF FFh
5.7.1.5
0 to +255
Operating Range Remarks
0 = No faults present 4 = One fault present
ECM CAN Messages - 27_CNG_1Box.doc
See parameter description below
IVECO/FPT CONFIDENTIAL PROPERTY Page 33 of 54
Byte 7
Byte 8
Version 2.7 16.06.10
Parameter
SPN_FMI Bit 8-6
Definition
SUSPECT PARAMETER NUMBER – MOST SIGNIFICANT BITS
SAE J1939/73 Reference
5.7.1.5
Bit 5-1 FAILURE MODE INDICATOR 5.7.1.6
Operating range
00
Above Normal
01
Below Normal
02
No signal
03
Source high
04
Source Low
12
Not plausible
31
Not available
Remarks
Parameter
SPN_CONV Bit 8
Definition
Bit 7-1
FAULT ACTIVE STATUS
OCCURRENCE COUNT
SAE J1939/73 Reference Operating range
5.7.1.8 0 = inactive 1= active
0 to 126
valid values
127
not available
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 34 of 54
Version 2.7 16.06.10 DM4 single in case of no fault entries Message Template Byte 1 Parameter
FREEZE FRAME LENGTH
Byte 2 SUSPECT PARAMETER NUMBER – LEAST BYTE
00h
ECM CAN Messages - 27_CNG_1Box.doc
00h
Byte 3 SUSPECT PARAMETER NUMBER – SECOND BYTE 00h
Byte 4 SPN_FMI
00h
Byte 5 SPN_CONV
Byte 6
Byte 7
Byte 8
FFh
FFh
Not defined
00h
IVECO/FPT CONFIDENTIAL PROPERTY Page 35 of 54
FFh
Version 2.7 16.06.10
1.1.16.
Diagnostic Message #4 from ECM – DM4 multipacket
1.1.16.1.
DM4BAM (Broadcast Announce Message)
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
1C EC FF 00
On request
Ref SAE J1939/73 par 5.7.4
Message Template Byte 1 Parameter
Byte 2
Byte 3
CONTROL BYTE TOTAL MESSAGE SIZE, NUMBER OF BYTES
Assigned value
Byte 5
Byte 6
OF PACKETS
ASSIGNMENT BY SAE
Byte 8
MESSAGE
FFH Depends on number of faults
Byte 7
TOTAL NUMBER RESERVED FOR PARAMETER GROUP NUMBER OF THE PACKET
32
Remarks
1.1.16.2.
Byte 4
CDFE00H
Depends on number of faults
DM4PCK (Transport Protocol – Data Transfer)
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
1C EB FF 00
On request, when the vehicle is in standstill and the engine is not running
This is a multipackage message and the interval between individual messages is 50 ms. Faults information are packed and the total bytes length can also be a number not multiple of 8, according to SAE J1939/73.
Message Template (example of 4 DTCs) Package 1 ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 36 of 54
Version 2.7 16.06.10 Byte 1 Package identification 1
Byte 2
Byte 3
Freeze frame length (04h)
Byte 4
Byte 5
Byte 6
Diagnostic Trouble Code (DTC) #1
Byte 7
Byte 8
Freeze frame length (04h)
DTC #2
Byte 7
Byte 8
Package 2 Byte 1
Byte 2
Package identification 2
Byte 3
Byte 4
DTC #2 – continued
Byte 5
Byte 6
Freeze frame length (04h)
DTC #3
Package 3 Byte 1 Package identification 3
Byte 2 DTC #3 – continued
Byte 3 Freeze frame length (04h)
ECM CAN Messages - 27_CNG_1Box.doc
Byte 4
Byte 5
Byte 6 DTC #4
IVECO/FPT CONFIDENTIAL PROPERTY Page 37 of 54
Byte 7
Byte 8 FFh
Version 2.7 16.06.10
1.1.17.
Diagnostic Message #11 Acknowledge from ECM – DM11ack
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 E8 FF 00
On request following the successful/unsuccessful erasure of Ref SAE J1939/73 par 5.7.11 the failure memory
Message Template Byte 1 Parameter
Byte 2-5
Byte 6-8
STATUS_BYTE
Not used
PGN
00h Positive acknowledgement
Always set to FF FF FF FFh
00 FE D3h
Scale Offset Data Range Operating Range Remarks
01h Negative acknowledgement From SW v65
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 38 of 54
Version 2.7 16.06.10
1.1.18.
OBD Response message OBD_resp_ECM
Data Length
Identifier (hex)
Cycle Time
8 Bytes
18 DA F1 91
Transmitted only on request after KWP2000 or OBD request ISO 15765-4 message
ECM CAN Messages - 27_CNG_1Box.doc
Remarks
IVECO/FPT CONFIDENTIAL PROPERTY Page 39 of 54
Version 2.7 16.06.10
1.2.
ECM Received Messages
In the application is possible there is an arbitration till up 3 contemporary TSC1. The identifier of TSC1 may be changed in the last digits with a different calibration dataset (same SW). It’s recommended to choice 3 identifiers from the list below: •
0C 00 00 03 for TSC1_TE (GEARBOX)
•
0C 00 00 0B for TSC1_AE (ABS/ASR)
•
0C 00 00 24 for TSC1_PE (PTO)
•
0C 00 00 21 for TSC1_VE (VEHICLE)
•
0C 00 00 10 for TSC1_DE (DRIVELINE)
•
0C 00 0F 0B for TSC1_AR
•
0C 00 0F 10 for TSC1_DR
•
0C 00 0F 03 for TSC1_TR
•
0C 00 0F 21 for TSC1_VR
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 40 of 54
Version 2.7 16.06.10
1.2.1.
Torque / Speed Control #1 to Engine : TSC1_VE_Limit
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
0C 00 xx xx
every 10 ms when override control is active
Ref SAE J1939/71 par 5.3.1
Message Template Byte 1
Byte 2
Byte 4
REQUESTED SPEED / SPEED LIMIT
REQUESTED TORQUE / TORQUE LIMIT
5.2.1.19
5.2.1.15
Scale
0.125 rpm/bit
1%/bit gain
Offset
0 rpm
-125%
0 to +8031,875 rpm
-125 to +125%
Parameter
CONTROL BITS
Byte 3
SAE J1939/71 Reference
Data Range Operating Range See parameter description below
Parameter
CONTROL BITS Bit 8-7
Byte 7
Byte 8
Not defined
Not defined
Bit 6-5
Bit 4-3
Bit 2-1
OVERRIDE CONTROL MODE PRIORITY
REQUESTED SPEED CONTROL CONDITIONS
OVERRIDE CONTROL MODE
SAE J1939/71 Reference Remarks
Byte 6
0 to +125%
Remarks
Definition
Byte 5
5.2.3.3 00b 01b 10b 11b
Highest priority High priority Medium priority Low priority
5.2.3.2 00b Transient optim. For driveline disengage. And non-lockup cond. 01b Stability optim. For driveline disengage. And non-lockup cond. 10b Stability optim. For driveline engag. And/or in lockup cond. 1 (e.g. vehicle driveline) 11b Stability optim. For driveline engag. And/or in lockup cond. 2 (e.g. PTO driveline) Not evaluated by ECM
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 41 of 54
5.2.3.1 00b 01b 10b 11b
Disabled Speed control Torque control Speed/torque limit
Version 2.7 16.06.10
1.2.2.
Torque / Speed Control #1 to Engine : TSC1_VE_Control
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
0C 00 xx xx
every 10 ms when override control is active
Ref SAE J1939/71 par 5.3.1
Message Template Byte 1
Byte 2
Byte 4
REQUESTED SPEED / SPEED LIMIT
REQUESTED TORQUE / TORQUE LIMIT
5.2.1.19
5.2.1.15
Scale
0.125 rpm/bit
1%/bit gain
Offset
0 rpm
-125%
0 to +8031,875 rpm
-125 to +125%
Parameter
CONTROL BITS
Byte 3
SAE J1939/71 Reference
Data Range Operating Range See parameter description below
Parameter
CONTROL BITS Bit 8-7
Byte 7
Byte 8
Not defined
Not defined
Bit 6-5
Bit 4-3
Bit 2-1
OVERRIDE CONTROL MODE PRIORITY
REQUESTED SPEED CONTROL CONDITIONS
OVERRIDE CONTROL MODE
SAE J1939/71 Reference Remarks
Byte 6
0 to +125%
Remarks
Definition
Byte 5
5.2.3.3 00b 01b 10b 11b
Highest priority High priority Medium priority Low priority
5.2.3.2 00b Transient optim. For driveline disengage. And non-lockup cond. 01b Stability optim. For driveline disengage. And non-lockup cond. 10b Stability optim. For driveline engag. And/or in lockup cond. 1 (e.g. vehicle driveline) 11b Stability optim. For driveline engag. And/or in lockup cond. 2 (e.g. PTO driveline) Not evaluated by ECM
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 42 of 54
5.2.3.1 00b 01b 10b 11b
Disabled Speed control Torque control Speed/torque limit
Version 2.7 16.06.10
1.2.3.
Torque / Speed Control #1 to Engine : TSC1_VE_Control_2
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
0C 00 xx xx
every 10 ms when override control is active
Ref SAE J1939/71 par 5.3.1
Message Template Byte 1
Byte 2
Byte 4
REQUESTED SPEED / SPEED LIMIT
REQUESTED TORQUE / TORQUE LIMIT
5.2.1.19
5.2.1.15
Scale
0.125 rpm/bit
1%/bit gain
Offset
0 rpm
-125%
0 to +8031,875 rpm
-125 to +125%
Parameter
CONTROL BITS
Byte 3
SAE J1939/71 Reference
Data Range Operating Range See parameter description below
Parameter
CONTROL BITS Bit 8-7
Byte 7
Byte 8
Not defined
Not defined
Bit 6-5
Bit 4-3
Bit 2-1
OVERRIDE CONTROL MODE PRIORITY
REQUESTED SPEED CONTROL CONDITIONS
OVERRIDE CONTROL MODE
SAE J1939/71 Reference Remarks
Byte 6
0 to +125%
Remarks
Definition
Byte 5
5.2.3.3 00b 01b 10b 11b
Highest priority High priority Medium priority Low priority
5.2.3.2 00b Transient optim. For driveline disengage. And non-lockup cond. 01b Stability optim. For driveline disengage. And non-lockup cond. 10b Stability optim. For driveline engag. And/or in lockup cond. 1 (e.g. vehicle driveline) 11b Stability optim. For driveline engag. And/or in lockup cond. 2 (e.g. PTO driveline) Not evaluated by ECM
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 43 of 54
5.2.3.1 00b 01b 10b 11b
Disabled Speed control Torque control Speed/torque limit
Version 2.7 16.06.10
1.2.4.
Cruise control / Vehicle speed from Engine Controller CCVS-RX
The identifier of CCVS-RX may be changed with different calibration dataset (same SW). It’s recommended to set the following identifier: 18 FE F1 27.
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FE xx xx
time synchronous 100 ms
Ref SAE J1939/71 par 5.3.31
Message Template Byte 1 Parameter
Byte 2
Byte 3
MEASURED_SW1 WHEEL BASED VEHICLE SPEED
SAE J1939/71 Reference
Byte 4
Byte 5
Byte 6
MEASURED_CC_ MEASURED_CC_ CRUISE CONTROL STATE_CC SW2 SET SPEED SW1
5.2.1.12
5.2.5.47
Scale
1/256 km / h / bit
1 km / h / bit
Offset
0 km / h
0 km / h
0 to 251 km / h
0 to 250 km/h
Data Range
Byte 7
Byte 8 MEASURED_IDLE _SW1
Operating Range Remarks
See parameter description below
ECM CAN Messages - 27_CNG_1Box.doc
See parameter description below
Not used
Not used
IVECO/FPT CONFIDENTIAL PROPERTY Page 44 of 54
Not used
Version 2.7 16.06.10
Parameter
MEASURED_SW1 Bit 8-7
Definition
Bit 6-5 CRUISE CONTROL PAUSE SWITCH
Not defined
SAE J1939/71 Reference
TWO SPEED AXLE SWITCH 5.2.6.1
Not actuated Actuated Error Not available
Not used
Not used
MEASURED_CC_SW1 Bit 8-7 STATUS OF CLUTCH SWITCH
SAE J1939/71 Reference Operating range
Bit 2-1
5.2.6.8 00b 01b 10b 11b
Remarks
Definition
PARKING BRAKE SWITCH
5.2.?.?
Operating range
Parameter
Bit 4-3
5.2.6.12 00b 01b 10b 11b
Not actuated Actuated Error Not available
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
Bit 6-5 STATUS OF BRAKE SWITCH 5.2.6.11
Bit 4-3 CRUISE CONTROL ENABLE SWITCH
Bit 2-1 CRUISE CONTROL ACTIVE
5.2.6.10
5.2.6.9 00b 01b
00b Not pressed and not defective 01b Pressed and not defective 10b Error (plausibility) 11b Not available Not used
IVECO/FPT CONFIDENTIAL PROPERTY Page 45 of 54
CC switched off CC switched on
Version 2.7 16.06.10
Parameter
Definition
STATE_CC Bit 8-6
Bit 5-1
Cruise Control states
PTO state
SAE J1939/71 Reference Operating range
5.2.2.18 000 Off/Disabled 001 Hold 010 Accelerate 011 Decelerate/Coast 100 Resume 101 Set 110 Accelerator override (not used) 111 Not available
5.2.2.19 00000 Off/Disabled 00001 Hold 00010 Remote Hold (not used) 00011 Standby (not used) 00100 Remote Standby (not used) 00101 Set 00110 Decelerate/Coast 00111 Resume 01000 Accelerate 01001 Accelerator Override (not used) 01010 Preprogrammed set speed 1 01011 Preprogrammed set speed 2 01100 Preprogrammed set speed 3 01101 Preprogrammed set speed 4 01110 Preprogrammed set speed 5 (not used) 01111 Preprogrammed set speed 6 (not used) 10000 Preprogrammed set speed 7 (not used) 10001 Preprogrammed set speed 8 (not used) 10010-11110 Not defined 11111 Not available
Remarks
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 46 of 54
Version 2.7 16.06.10
1.2.5.
Electronic Transmission Controller #1 from TC to all devices - ETC1
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
0C F0 02 03
time synchronous 10 ms
Ref SAE J1939/71 par 5.3.5
Message Template Byte 1
Byte 4
Byte 5
OUTPUT SHAFT SPEED
PERCENT CLUTCH SLIP
COMMAND_ETC1
5.2.1.14
Scale Offset
Parameter
STATUS_ETC1
Byte 2
Byte 6
Byte 7
Byte 8
INPUT SHAFT SPEED
SOURCE ADDRESS OF CONTROLLING DEVICE FOR TRANSMISSION CONTROL
5.2.1.20
5.2.5.65
5.2.5.301
0.125 rpm/bit
0.4%/bit
0.125 rpm/bit
1 /bit
0 rpm
0%
0 rpm
0
0 to +8031.875 rpm
0 to +100%
0 to +8031.875 rpm
0 to +253
SAE J1939/71 Reference
Data Range
Byte 3
Operating Range Remarks
See parameter Not used description below
Not used
See parameter description below
Not used
Not used
Not evaluated by ECM
Parameter
Definition
STATUS_ETC1 Bit 8-7
Bit 6-5
Bit 4-3
Bit 2-1
Not defined
SHIFT IN PROCESS
TORQUE CONVERTER LOCKUP ENGAGED
DRIVELINE ENGAGED
5.2.2.14
5.2.2.13
5.2.2.6
SAE J1939/71 Reference Remarks
ECM CAN Messages - 27_CNG_1Box.doc
00b 01b
Shift not in process Shift in process
Not used in EDC Not evaluated by ECM
IVECO/FPT CONFIDENTIAL PROPERTY Page 47 of 54
00b 01b
Driveline disengaged Driveline engaged
Version 2.7 16.06.10
1.2.6.
Electronic Transmission Controller #2 from TC to all devices - ETC2
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
18 F0 05 03
time synchronous 100 ms
Ref SAE J1939/71 par 5.3.8
Message Template Byte 1
Byte 2
Byte 3
Byte 4
Byte 5-6
Byte 7-8
SELECTED GEAR
ACTUAL GEAR RATIO
CURRENT GEAR
TRANSMISSION REQUESTED RANGE
TRANSMISSION CURRENT GEAR
SAE J1939/71 Reference
5.2.1.23
5.2.1.25
5.2.1.22
5.2.5.108
5.2.5.109
Scale
1 gear/bit
0.001 /bit
1 gear/bit
1 /bit
1 /bit
Offset
-125 gear
0
-125 gear
0
0
-125 to +125 gear
0 to +64.255
-125 to +125 gear
0 to +250 (ASCII)
0 to +250 (ASCII)
Parameter
Data Range Operating Range Remarks
ECM CAN Messages - 27_CNG_1Box.doc
Not evaluated
IVECO/FPT CONFIDENTIAL PROPERTY Page 48 of 54
Not evaluated
Version 2.7 16.06.10
1.2.7.
Vehicle Controller to ECM
- VCM2ECM
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
0C FF 00 27
time synchronous 50 ms
IVECO Proprietary message
Message Template Byte 1-2
Byte 3-4
Byte 5
Byte 6
Byte 7
Byte 8
HIGH IDLE SPEED SETPOINT
LOW IDLE SPEED SETPOINT
PARAMETER SET 1
INTERMEDIATE SPEED FEEDBACK FACTOR
PARAMETER SET 2
PARAMETER SET 3
Scale
0.125 rpm/bit
0.125 rpm/bit
0.02 rpm/Nm / bit
Offset
0 rpm
0 rpm
0 rpm/Nm
0 to +8031.875 rpm
0 to +8031.875 rpm
0 to +2 rpm/Nm
Parameter
Data Range Operating Range Remarks
This signal can only decrease the ECM basic setpoint (above Low Idle Setpoint)
This signal can only increase the ECM replacement value (below High Idle Setpoint) FFFFh in case of no high idle setpoint request
ECM CAN Messages - 27_CNG_1Box.doc
See parameter description below
FF in case of no request of specific feedback factor . Not evaluated by ECM
IVECO/FPT CONFIDENTIAL PROPERTY Page 49 of 54
Not evaluated by ECM
Version 2.7 16.06.10
Parameter
Definition
PARAMETER SET 1 Bit 8-6
Bit 5-3
Bit 2-1
LOW GOVERNOR PARAMETER SET
HIGH GOVERNOR PARAMETER SET
UNDERBRAKING STATUS
SAE J1939/71 Reference Operating Range
000–› Set 0 001–› Set 1 010–› Set 2 011–› Set 3 100–› Reserved 101–› Reserved 110–› Reserved 111-> No Action
00 – No underbraking condition
000–› Set 0 001–› Set 1 010–› Set 2 011–› Set 3 100–› Reserved 101–› Reserved 110–› Reserved 111-> No Action
01 – Underbraking condition 10 – Reserved 11 – Not available
Remarks
Parameter
PARAMETER SET 3
Definition
Bit 8-3
Bit 2-1
Not defined
Fuel heating procedure
SAE J1939/71 Reference Operating Range
00 – No heating 01 – Heating 10 – Reserved 11 – Not available
Remarks
Some proprietary signals are required to demand to the ECM specific output activations. The below proposal uses the same messages (BC2EDC1 and BC2EDC2) currently used on today MS6.2 and EDC7C1, limited to those signals required in the two-box approach. Different signals layouts, in order to limit the number of proprietary messages, are under investigation.
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 50 of 54
Version 2.7 16.06.10
1.2.8.
BC2EDC1
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 FF 00 21
time synchronous 50 ms
IVECO Proprietary message The message is received by the Body Computer.
Message Template
Parameter
Byte 1
Byte 2
Byte 3
Not Defined
COMMAND BYTE 1
3RD SPEED LIMITER
Scale
1 km/h per bit
Offset
0km/h
Data Range
0 – 250 km/h
Operating Range
0 – 250 km/h
Remarks
See parameter description below
Byte 4
Byte 5
Byte 6
Byte 7
COMMAND BYTE 2 PIN CODE FIELD
COMMAND BYTE 3
See parameter Last 5 nibbles description below Valid value only if Pin Code Enable Not evaluated by (Command Byte 2) is set to ON, otherwise ECM FF FF FFh
Not evaluated by ECM
Byte 8
See parameter description below
Not evaluated by ECM
Parameter
COMMAND BYTE 3 Bit 8-3
Definition Operating Range
Not defined
Bit 2-1 MIL VISUALIZATION AVAILABLE 00 MIL visualization available 01 MIL visualization not available
Remarks
See remark done for BC2EDC1.
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 51 of 54
Version 2.7 16.06.10
1.2.9.
Tachograph – TCO1
Data Length
Identifier (hex)
Receive cycle time
Remarks
8 Bytes
0C FE 6C EE
50 ms
Ref SAE J1939/71 par 5.3.143
Message Template Byte 1
Byte 2
Byte 3
Byte 4
Byte 6-5
Byte 8 -7
PARAMETER 1
PARAMETER 2
PARAMETER 3
PARAMETER 4
TACHOGRAPH OUTPUT SHAFT SPEED
TACHOGRAPH VEHICLE SPEED
5.2.5.282
5.2.5.283
Scale
0.125 rpm/bit
1/256 km / h / bit
Offset
0 rpm
0 km / h
0 to 8,031.875 rpm
0 to 251 km / h
Parameter SAE J1939/71 Reference
Data Range Operating Range Remarks
Not used
Not used
Not used
Not used
Not used by ECM
This message transmission is not guaranteed during the engine cranking phase.
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 52 of 54
Version 2.7 16.06.10
1.2.10.
PGN Request – Req_ECM_VCM
Data Length
Identifier (hex)
Cycle Time
Remarks
3 Bytes
18 EA 00 27
On occurrence
Ref SAE J1939/21 par 5.4.2
Message Template Byte 1
Byte 2
Byte 3
Parameter
PGN LSB
PGN
PGN MSB
( For DM4 Request )
CD
FE
00
( For DM11 Request )
D3
FE
00
(Engine hours revolution)
E5
FE
00
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 53 of 54
Version 2.7 16.06.10
1.2.11.
OBD Functional Request message OBD_req_VCM_to_all
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 DB 33 F1
On occurrence
ISO 15765-4
1.2.12.
OBD Request message OBD_req_VCM_to_ECM
Data Length
Identifier (hex)
Cycle Time
Remarks
8 Bytes
18 DA 91 F1
On occurrence
ISO 15765-4
ECM CAN Messages - 27_CNG_1Box.doc
IVECO/FPT CONFIDENTIAL PROPERTY Page 54 of 54
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