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 Note
B242C Right Headlight ECU Malfunction

    Detection condition:

  • Engine switch on (IG)


    Malfunction status:

  • Headlight ECU sub-assembly RH internal malfunction


    Malfunction duration:

  • Maximum 15 minutes

 Headlight ECU sub-assembly RH Headlight ECU sub-assembly RH -
B242D Left Headlight ECU Malfunction

    Detection condition:

  • Engine switch on (IG)


    Malfunction status:

  • Headlight ECU sub-assembly LH internal malfunction


    Malfunction duration:

  • Maximum 15 minutes

 Headlight ECU sub-assembly LH 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. Clear the DTCs.

      Click here


      Body Electrical > AFS > Clear DTCs
      Body Electrical > AFS (Sub) > Clear DTCs

    2. Turn the engine switch on (IG) and wait for at least 10 seconds or more.

    3. Check for DTCs.

      Click here


      Body Electrical > AFS > Trouble Codes
      Body Electrical > AFS (Sub) > Trouble Codes
      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 HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    C

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here