DTC C1203/95 ECM Communication Circuit Malfunction: Description
The circuit is used to send TRAC and VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU via the CAN communication system.
DTC DETECTION CONDITION AND TROUBLE AREA CHART
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1203/95 | - | Engine drive source and destination variation that are sent from the ECM do not match the one of the ECU. | ECM |
HINT:
Check that the part numbers of the installed ECM and skid control ECU are correct before performing the following procedure.
- PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION
- Clear the DTC (See DIAGNOSIS SYSTEM ).
- Perform the initialization of linear solenoid valve and calibration (See CHECK FOR INTERMITTENT PROBLEMS ).
NEXT
- CHECK DTC
- Clear the DTC (See DIAGNOSIS SYSTEM ).
- Turn the engine switch off.
- Turn the engine switch on (IG).
- Check that the DTC (C1345/66) is recorded (See DIAGNOSIS SYSTEM
).
Result
DISPLAY (DTC OUTPUT) PROCEED TO REFERENCE CHARTDisplay (DTC Output) Proceed To DTC (C1345/66) is not output A DTC (C1345/66) is output B (See DIAGNOSTIC TROUBLE CODE CHART )
B : REPAIR CIRCUIT INDICATED BY OUTPUT CODE
A : GO TO NEXT STEP
- RECONFIRM DTC
- Clear the DTC (See DIAGNOSIS SYSTEM ).
- Turn the engine switch off.
- Turn the engine switch on (IG).
- Check if the same DTC is recorded (See DIAGNOSIS SYSTEM
).
Result
DISPLAY (DTC OUTPUT) AND PROCEED TO REFERENCE CHARTDisplay (DTC Output) Proceed To DTC (C1203/95) is not output A DTC (C1203/95) is output B
B : REPLACE ECM
A : END