ADAPTIVE HIGH BEAM SYSTEM, Diagnostic DTC:B2438

DTC Code DTC Name
B2438 Camera Detection Malfunction

DESCRIPTION

This DTC is stored when the forward recognition camera has a high temperature malfunction at night.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2438 Camera Detection Malfunction Forward recognition camera detection malfunction

  • Forward recognition camera

  • Headlight control computer assembly LH

CAUTION / NOTICE / HINT

Note


  • When replacing the forward recognition camera, make sure to replace it with a new one. If a device which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and, as a result, a DTC may be stored.

  • When the forward recognition camera is replaced, always perform beam axis adjustment for the forward recognition camera.

    Click here

  • 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. FORWARD RECOGNITION CAMERA (CHECK CONDITION)


    1. Check that the windshield and forward recognition camera (lens) are not dirty or covered by an object.

      OK
      Windshield and forward recognition camera (lens) not dirty or covered by object.
      Result
      Proceed to
      OK
      NG

    NG

    END (DIRT OR OBJECT REMOVED)

    OK

  3. CHECK FOR DTC


    1. Turn the engine switch on (IG).

    2. Check for DTCs.

      Click here


      Body Electrical > AFS > Trouble Codes
      OK
      DTC B2438 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (ADAPTIVE HIGH BEAM SYSTEM STOPPED DUE TO PAST DETECTION FAILURE)

    NG

  4. REPLACE FORWARD RECOGNITION CAMERA


    1. Replace the forward recognition camera with a new one.

      Click here

    2. Turn the engine switch on (IG).

    3. Clear the DTCs.

      Click here


      Body Electrical > AFS > Clear DTCs

    4. Perform beam axis adjustment for the forward recognition camera.

      Click here

    5. Check for DTCs.

      Click here


      Body Electrical > AFS > Trouble Codes
      OK
      DTC B2438 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

    NG

    REPLACE HEADLIGHT CONTROL COMPUTER ASSEMBLY LH Click here