Power Steering System

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: U0100, U0122, U0416; Lost Communication with ECM / PCM "A"; 2013 MY FR-S [03/2012 -]
U0100 - Lost Communication with ECM / PCM "A"
U0122 - Lost Communication with Vehicle Dynamics Control Module
U0416 - Invalid Data Received from Vehicle Dynamics Control Module

DESCRIPTION

The power steering ECU assembly receives signals from the ECM and skid control ECU (brake actuator assembly) via the CAN communication system.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

(a) Clear the DTC(s) 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) How to Proceed With Troubleshooting

OK -- USE SIMULATION METHOD TO CHECK