LIGHTING SYSTEM, Diagnostic DTC:U1000

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

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area
U1000 CAN Communication Failure (Message Registry) A headlight ECU sub-assembly LH CAN communication function malfunction is detected Headlight ECU sub-assembly LH

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.

Click here

PROCEDURE


  1. CHECK FOR DTC


    1. Turn the engine switch on (IG).

    2. Check for DTCs.

      Click here

      for Single Beam Headlight:


      Body Electrical > HL AutoLeveling > Trouble Codes

      for Triple Beam Headlight:


      Body Electrical > AFS > Trouble Codes
      OK
      DTC U1000 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here