C1203

DTC C1203 ECM COMMUNICATION CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

Wiring Diagram:

Step 1:

INSPECTION PROCEDURE