LIGHTING SYSTEM, Diagnostic DTC:U0101, U0073, U0100, U0126, U0129, U0142, U1000, U1121

DTC Code DTC Name
U0101 Lost Communication with ECM
U0073 Control Module Communication Bus Off
U0100 Lost Communication with ECM / PCM "A"
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Skid Control ECU
U0142 Lost Communication with Main Body ECU
U1000 Can Communication Failure(Message Registry)
U1121 Lost Communication with Driver Seat Module

DESCRIPTION

These DTCs are stored when the self-diagnosis of the headlight swivel ECU determines that the CAN communication system is malfunctioning.

DTC Code DTC Detection Condition Trouble Area
U0073 Control module communication bus is off. CAN communication system
U0100 Lost communication with the ECM/PCM "A".
U0101 Lost communication with the ECM.
U0126 Lost communication with the steering angle sensor.
U0129 Lost communication with the skid control ECU.
U0142 Lost communication with the main body ECU (multiplex network body ECU).
U1000 CAN communication failure.
U1121 Lost communication with the driver seat module.

PROCEDURE


  1. CHECK FOR DTC


    1. for LHD with Entry and Start System


      1. Use the intelligent tester to check if the CAN communication system is functioning normally Click here.

    2. for LHD without Entry and Start System


      1. Use the intelligent tester to check if the CAN communication system is functioning normally Click here.

    3. for RHD with Entry and Start System


      1. Use the intelligent tester to check if the CAN communication system is functioning normally Click here.

    4. for RHD without Entry and Start System


      1. Use the intelligent tester to check if the CAN communication system is functioning normally Click here.

      OK
      DTC output does not occur.
      Result
      Result Proceed to
      OK A
      NG (for for LHD with Entry and Start System) B
      NG (for for LHD without Entry and Start System) C
      NG (for for RHD with Entry and Start System) D
      NG (for for RHD without Entry and Start System) E

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here