DTC    C1203/95    ECM Communication Circuit Malfunction

for Preparation Click here


DESCRIPTION

The circuit is used to send TR(A)C 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 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

INSPECTION PROCEDURE

HINT:
Check that the part numbers of the installed ECM and skid control ECU are correct before performing the following procedure.

1.PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION

  1. Clear the DTC (Click here).

  1. Perform the initialization of linear solenoid valve and calibration (Click here).


NEXT


2.CHECK DTC

  1. Clear the DTC (Click here).

  1. Turn the engine switch off.

  1. Turn the engine switch on (IG).

  1. Check that the DTC (C1345/66) is recorded (Click here).

    Result:

    Condition
    		Proceed To
    DTC (C1345/66) is not output
    		A
    DTC (C1345/66) is output
    		B (Click here)



B
REPAIR CIRCUIT INDICATED BY OUTPUT CODE
A


3.RECONFIRM DTC

  1. Clear the DTC (Click here).

  1. Turn the engine switch off.

  1. Turn the engine switch on (IG).

  1. Check if the same DTC is recorded (Click here).

    Result:

    Condition
    		Proceed To
    DTC (C1203/95) is not output
    		A
    DTC (C1203/95) is output
    		B



B
REPLACE ECM
A

END