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Home >> Toyota >> 2011 >> Matrix AWD L4-2.4L (2AZ-FE) >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> DTC 83 >> Control Module Communication Bus OFF - Active Torque Control 4WD System
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Control Module Communication Bus OFF - Active Torque Control 4WD System





MF1A TRANSFER / 4WD / AWD: ACTIVE TORQUE CONTROL 4WD SYSTEM: U0073/86,U0100/85,U0129/83: Control Module Communication Bus OFF
U0129/83 - Lost Communication with Brake System Control Module

DESCRIPTION

* The 4WD control 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 DTC Reading and Clearing Diagnostic Trouble Codes.

(b) Record the output DTC (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 How to Proceed With Troubleshooting
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