INSPECTION PROCEDURE
PROCEDURE
1. CHECK CAN COMMUNICATION SYSTEM
(a) Select "CAN Bus Check" from the "System Selection Menu" screen on the Techstream.
(b) Select "Communication Malfunction DTC" from the "CAN Bus Check" screen, and then select "Enter".
Result:
B -- GO TO CAN COMMUNICATION SYSTEM See: Diagnostic Trouble Code Descriptions/CAN Communication System
A -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION
) See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled
Systems/How To Proceed With Troubleshooting
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
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