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POWER STEERING SYSTEM, Diagnostic DTC:U0100, U0129

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DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Brake System Control Module
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DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
U0100 ECM communication error

  • CAN communication system

  • ECM
U0129 Skid control ECU communication error

  • CAN communication system

  • Brake actuator assembly (Skid control ECU)
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PROCEDURE


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    CONFIRM DTC


    1. Check for DTCs (Click here).

      OK
      DTC is not output

    • OK

      CHECK FOR INTERMITTENT PROBLEMS (Click here)

    • NG

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