POWER STEERING SYSTEM, Diagnostic DTC:U0100/41, U0129/42, U1103/92

DTC Code DTC Name
U0100/41 Lost Communication with ECM/PCM "A"
U0129/42 Lost Communication with Brake System Control Module
U1103/92 Lost Communication with Stop and Start Control Module

DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
U0100/41 ECM communication error

  • CAN communication system

  • ECM
U0129/42 Skid control ECU communication error

  • CAN communication system

  • Brake actuator assembly (Skid control ECU)
U1103/92 Stop and Start control ECU communication error

  • CAN communication system

  • Engine stop and start ECU

*: w/ Stop and Start System

Tech Tips

When two or more DTCs starting with [U] are output simultaneously, inspect the connectors and wire harness of each ECU.

INSPECTION PROCEDURE

PROCEDURE


  1. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs.

      OK
      DTC U0100/41, U0129/43 or U1103/92 is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here