LIGHTING SYSTEM, Diagnostic DTC:U1000

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

DESCRIPTION

This DTC is output when an internal malfunction of the CAN communication-related ECU is stored.

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

CAUTION / NOTICE / HINT

Note

After the headlight light control ECU sub-assembly LH (main) is replaced, vehicle information registration and initialization are necessary.

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PROCEDURE


  1. CHECK FOR DTC


    1. Turn the engine switch on (IG).

    2. Turn on the headlights using the headlight dimmer switch.

    3. Check for DTCs.

      Click here


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

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH (MAIN) Click here