LIGHTING SYSTEM, Diagnostic DTC:B242C, B242D

DTC Code DTC Name
B242C Right Headlight ECU Malfunction
B242D Left Headlight ECU Malfunction

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
B242C Right Headlight ECU Malfunction

    Detection condition:

  • Engine switch on (IG)


    Malfunction status:

  • No. 1 headlight ECU sub-assembly RH internal malfunction


    Malfunction duration:

  • Maximum 15 minutes

 No. 1 headlight ECU sub-assembly RH No. 1 headlight ECU sub-assembly RH
B242D Left Headlight ECU Malfunction

    Detection condition:

  • Engine switch on (IG)


    Malfunction status:

  • No. 1 headlight ECU sub-assembly LH internal malfunction


    Malfunction duration:

  • Maximum 15 minutes

 No. 1 headlight ECU sub-assembly LH No. 1 headlight ECU sub-assembly LH

CAUTION / NOTICE / HINT

Note

If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information.

Click here

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


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

    2. Turn the engine switch on (IG) and wait for at least 15 minutes.

    3. Check for DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Trouble Codes
      Body Electrical > HL AutoLeveling (Sub) > Clear DTCs
      OK
      DTC B242C and B242D are not output.
      Result
      Result Proceed to
      OK A
      NG (DTC B242C is output) B
      NG (DTC B242D is output) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    C

    REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH Click here