LIGHTING SYSTEM, Diagnostic DTC:U1000

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

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
U1000 A malfunction in the headlight leveling ECU (CAN communication failure) Headlight leveling ECU assembly

INSPECTION PROCEDURE

Tech Tips

After replacing the headlight leveling ECU, initialization of the ECU is necessary Click here.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC U1000 output does not occur.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    A

    USE SIMULATION METHOD TO CHECK Click here