C1203/53

Diagnostic trouble codes

DESCRIPTION

The 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.

DTC No.	DTC Detection Condition	Trouble Area
C1203/53	Engine, drive source and destination variations that are sent from the ECM do not match the ones of the skid control ECU.	ECM

INSPECTION PROCEDURE

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

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

OK:

Proper ECUs are installed.

REPLACE ECUS WITH PROPER ONES

REPLACE ECM