C1203

DTC C1203/53 ECM Communication Circuit Malfunction

DESCRIPTION

DTC Detecting Condition:

The circuit is used to send TRAC & VSC control information (engine revolution signal) from the skid control ECU to the ECM (TRC+, TRC-), and engine control information from the ECM to the skid control ECU (ENG+, ENG-).

Wiring Diagram:

Step 1-2:

INSPECTION PROCEDURE