LIGHTING SYSTEM, Diagnostic DTC:U1000

DTC Code DTC Name
U1000 CAN Communication Failure (Message Registry)

DESCRIPTION

The headlight ECU sub-assembly stores this DTC if it detects an internal malfunction related to the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Note
U1000 CAN Communication Failure (Message Registry) CAN communication failure

  • Headlight ECU sub-assembly LH

  • Headlight ECU sub-assembly RH

  • Headlight ECU sub-assembly LH

  • Headlight ECU sub-assembly RH

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CAUTION / NOTICE / HINT

Note

If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

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PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > AFS > Clear DTCs
      Body Electrical > AFS (Sub) > Clear DTCs

    2. Turn the engine switch on (IG).

    3. Check for DTCs.

      Click here


      Body Electrical > Passenger Seat > Trouble Codes
      Body Electrical > AFS (Sub) > Trouble Codes
      OK
      DTC U1000 is not output.
      Result
      Result Proceed to
      OK A
      NG (DTC output from headlight ECU sub-assembly LH) B
      NG (DTC output from headlight ECU sub-assembly RH) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here

    C

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH Click here