C1203

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1203/53: ECM Communication Circuit Malfunction

DTC C1203/53 - 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.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (FOR ENGINE CONTROL SYSTEM)
(a) Check if the engine control system DTC is output DTC Check / Clear.
Result:






B -- INSPECT ENGINE CONTROL SYSTEM
A -- REPLACE ECM