POWER STEERING SYSTEM, Diagnostic DTC:U0100, U0129, U1103

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Brake System Control Module
U1103 Lost Communication with Stop and Start Control Module

DESCRIPTION

The power steering ECU receives signals from the ECM, skid control ECU and engine stop and start ECU via the CAN communication system.

DTC Code DTC Detection Condition Trouble Area
U0100 Lost communication with the ECM/PCM "A".

  • CAN communication system

  • ECM
U0129 Lost communication with the brake system control module.

  • CAN communication system

  • Skid control ECU
U1103 Lost communication with the stop and start control module.

  • CAN communication system

  • Engine stop and start ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Clear the DTC(s) Click here.

    2. Check for DTCs Click here.

      OK
      DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here