Dtc C1203/53 Ecm Communication Circuit Malfunction


DESCRIPTION

INSPECTION PROCEDURE

CHECK PART NUMBER (ECM AND BRAKE ACTUATOR ASSEMBLY)

DTC C1203/53 ECM Communication Circuit Malfunction


DESCRIPTION

This circuit is used to send TRC and VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU through the CAN communication system.

DTC Code
DTC Detection Condition
Trouble Area
C1203/53
Engine, drive train and destination information that is sent from the ECM does not match the information of the skid control ECU.
  1. ECM
  2. Skid control ECU (Brake actuator assembly)

INSPECTION PROCEDURE

1.CHECK PART NUMBER (ECM AND BRAKE ACTUATOR ASSEMBLY)

  1. Check that the proper ECM and skid control ECU (brake actuator assembly) are installed.

    Result
    Result
    		Proceed to
    Proper ECM and ECU are installed
    		A
    Proper ECM and ECU are not installed
    		B



B
REPLACE ECM AND/OR ECU WITH PROPER ONE
A

REPLACE ECM