LIGHTING SYSTEM, Diagnostic DTC:B242C, B242D

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

DESCRIPTION

These DTCs are stored if the headlight control computer assembly LH or RH detects an internal malfunction. The headlight control computer assembly LH stores DTC B242C and B242D.

DTC No. Detection Item DTC Detection Condition Trouble Area
B242C Right Headlight ECU Malfunction An internal malfunction occurs in the headlight light control ECU sub-assembly RH Headlight control computer assembly RH
B242D Left Headlight ECU Malfunction An internal malfunction occurs in the headlight light control ECU sub-assembly LH Headlight control computer assembly LH

CAUTION / NOTICE / HINT

Note

If the headlight control computer assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight control computer assembly LH.

Click here

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > AFS > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Turn the engine switch on (IG).

    2. Check for DTCs.

      Click here


      Body Electrical > AFS > 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 CONTROL COMPUTER ASSEMBLY RH Click here

    C

    REPLACE HEADLIGHT CONTROL COMPUTER ASSEMBLY LH Click here