Power Steering System

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: U0129, U0293, U1104: Lost Communication with Brake System Control Module
U1104 - Lost Communication with Driving Support ECU

DESCRIPTION

The power steering ECU receives signals from the skid control ECU, hybrid vehicle control ECU and driving support ECU via the CAN communication system.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC is not output.

NG -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting

OK -- CHECK INTERMITTENT PROBLEMS