ADAPTIVE HIGH BEAM SYSTEM, Diagnostic DTC:B2437

DTC Code DTC Name
B2437 Camera High Temperature Malfunction

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
B2437 Forward recognition camera high temperature malfunction

  • Forward recognition camera

  • Headlight ECU sub-assembly

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 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.

Tech Tips

This DTC is only output when a malfunction occurs at night.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR FORWARD RECOGNITION CAMERA


    1. Move the vehicle to a cool place in order to lower the temperature of the forward recognition camera.

    2. Cover the automatic light control sensor with a lightproof object.

    3. Turn the power switch on (IG).

    4. Check for DTCs Click here.

      OK
      DTC B2437 is not output.

    OK

    END (ADAPTIVE HIGH BEAM SYSTEM STOPPED DUE TO REACHING HIGH TEMPERATURE)

    NG

  3. REPLACE FORWARD RECOGNITION CAMERA


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

    2. Turn the power switch on (IG).

    3. Clear the DTCs Click here.

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

    5. Cover the automatic light control sensor with a lightproof object.

    6. Check for DTCs Click here.

      OK
      DTC B2437 is not output.

    OK

    END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here