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LIGHTING SYSTEM(w/ Automatic Headlight Beam Level Control System), Diagnostic DTC:U1000

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

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

Table 1. HL AutoLeveling
DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U1000 CAN Communication Failure (Message Registry)
  • Detection condition:

  • The ignition switch is ON.


  • Malfunction status:

  • CAN communication failure


  • Malfunction duration:

  • -

 Headlight ECU sub-assembly LH Headlight ECU sub-assembly LH
Table 2. HL AutoLeveling (Sub)
DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U1000 CAN Communication Failure (Message Registry)
  • Detection condition:

  • The ignition switch is ON.


  • Malfunction status:

  • CAN communication failure


  • Malfunction duration:

  • -

 Headlight ECU sub-assembly RH 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


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    CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / HL AutoLeveling or HL AutoLeveling (Sub) / Trouble Codes.

    5. Clear the DTCs.


      1. Body Electrical > HL AutoLeveling > Clear DTCs



      1. Body Electrical > HL AutoLeveling (Sub) > Clear DTCs


      Result
      Proceed to
      NEXT

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    CHECK FOR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / HL AutoLeveling or HL AutoLeveling (Sub) / Trouble Codes.

    5. Check for DTCs.


      1. Body Electrical > HL AutoLeveling > Trouble Codes



      1. Body Electrical > HL AutoLeveling (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