POWER STEERING SYSTEM, Diagnostic DTC:U0100, U0129

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

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note
U0100 Lost Communication with ECM / PCM "A" Lost communication with ECM

  • CAN communication system

  • ECM

 EPS warning light: Does not come on The ECU judges the system has returned to normal or the power switch is turned on (IG) again -
U0129 Lost Communication with Brake System Control Module Lost communication with skid control ECU (Brake actuator assembly)

  • CAN communication system

  • Skid control ECU (Brake actuator assembly)

 EPS warning light: Comes on The ECU judges the system has returned to normal or the power switch is turned on (IG) again -

PROCEDURE


  1. GO TO CAN COMMUNICATION SYSTEM


    1. Go to CAN communication system.

      for LHD: Click here

      for RHD: Click here

      Result
      Proceed to
      NEXT

    NEXT

    END