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 Note
U0100 Lost Communication with ECM / PCM "A" Lost communication with ECM
  • CAN communication system

  • ECM

EPS warning light: When an error occurs during steering assist, the warning light does not illuminate. For errors that occur before assist (at the time of the decision to start assist), the warning light illuminates. -
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 -

PROCEDURE


  1. GO TO CAN COMMUNICATION SYSTEM


    1. Go to CAN communication system.

      Click here

      Result
      Proceed to
      NEXT

    NEXT