Power Steering System

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for 2ZR-FE): U0100, U0129; Lost Communication with ECM / PCM "A"; 2013 MY Corolla [07/2012 -]
U0129 - Lost Communication with Brake System Control Module

DESCRIPTION

The power steering ECU receives signals from the ECM and the skid control 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