ECM Communication Circuit Malfunction

DTC 53 ECM Communication Circuit Malfunction

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE