Up to 08/2009

MF1A TRANSFER / 4WD / AWD: ACTIVE TORQUE CONTROL 4WD SYSTEM: U0073,U0100,U0129: Control Module Communication Bus Off
U0129 - Lost Communication with Brake System Control Module

DESCRIPTION

* The 4WD ECU inputs the signals sent from the ECM and skid control ECU via the CAN communication system.

* When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Check for DTCs .

(b) Record the output DTCs (4WD control system).

HINT
When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

NEXT -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System