Four Wheel Drive Control System

UF1AE TRANSFER: FOUR WHEEL DRIVE CONTROL SYSTEM: U0073/86: Control Module Communication Bus OFF

DTC U0073/86 - Control Module Communication Bus OFF

DTC U0100/85 - Lost Communication with ECM / PCM "A"

DTC U0126/84 - Lost Communication with Steering Angle Sensor Module

DTC U0129/83 - Lost Communication with Brake System Control Module

DESCRIPTION

- The 4WD control ECU inputs the signals sent from the ECM, skid control ECU, and steering angle sensor 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

Go to CAN communication system for troubleshooting How to Proceed With Troubleshooting.
HINT:
When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.