C1203

C1203 / 53 - ECM Communication Circuit Malfunction

DTC Detecting Condition:

CIRCUIT DESCRIPTION
The circuit is used to send TRAC & VSC control information from the ABS & BA & TRAC & VSC ECU to the ECM TRC+, TRC-), and engine control information from the ECM to the ABS & BA & TRAC & VSC ECU (ENG+, ENG-).

Wiring Diagram:

Steps 1 - 2:

INSPECTION PROCEDURE