LIGHTING SYSTEM(for Triple Beam Headlight), Diagnostic DTC:U0073, U0100, U0101, U0129, U0142, U0155

DTC Code DTC Name
U0073 Control Module Communication Bus OFF
U0100 Lost Communication with ECM / PCM "A"
U0101 Lost Communication with TCM
U0129 Lost Communication with Brake System Control Module
U0142 Lost Communication with Body Control Module "B"
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module

DESCRIPTION

These DTCs are stored when the CAN communication system is malfunctioning.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0073 Control Module Communication Bus OFF Lost communication with CAN communication line CAN communication system
U0100 Lost Communication with ECM / PCM "A" Lost communication with ECM

  • CAN communication system

  • ECM
U0101 Lost Communication with TCM Lost communication with TCM

  • CAN communication system

  • ECM (for A760H Automatic Transmission)

  • TCM (for AA81E Automatic Transmission)
U0129 Lost Communication with Brake System Control Module Lost communication with brake actuator assembly (skid control ECU)

  • CAN communication system

  • Brake actuator assembly (skid control ECU)
U0142 Lost Communication with Body Control Module "B" Lost communication with main body ECU (multiplex network body ECU)

  • CAN communication system

  • Main body ECU (multiplex network body ECU)
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Lost communication with combination meter assembly

  • CAN communication system

  • Combination meter assembly

PROCEDURE


  1. CHECK FOR DTC


    1. Turn the engine switch on (IG).

    2. Check for DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Trouble Codes
      OK
      DTCs are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here