AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2452

DTC Code DTC Name
B2452 Height Control Sensor Data Out of Range When Initializing

DESCRIPTION

The headlight ECU sub-assembly LH stores this DTC if the sensor value received from the rear height control sensor sub-assembly RH is out of range when performing initialization of the headlight ECU sub-assembly LH; for example, the vehicle is not level or being jack up.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2452 Height Control Sensor Data Out of Range When Initializing Rear height control sensor sub-assembly RH value is out of range when initializing

  • Vehicle condition when initializing

  • Rear height control sensor sub-assembly RH

 -

CAUTION / NOTICE / HINT

Note

If any of the following are performed, it is necessary to initialize the headlight ECU sub-assembly LH.

Click here


  • Replacement of the rear height control sensor sub-assembly RH

  • Removal/installation of the rear height control sensor sub-assembly RH

  • Work that changes the vehicle height such as replacement of suspension components

PROCEDURE


  1. CLEAR DTC


    1. for Single Beam Headlight:


      1. Clear the DTCs.

        Click here


        Body Electrical > HL AutoLeveling > Clear DTCs

    2. for Triple Beam Headlight:


      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. for Single Beam Headlight:


      1. Check for DTCs.

        Click here


        Body Electrical > HL AutoLeveling > Trouble Codes
        OK
        DTC B2452 is not output.

    3. for Triple Beam Headlight:


      1. Check for DTCs.

        Click here


        Body Electrical > AFS > Trouble Codes
        OK
        DTC B2452 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  3. CHECK AND REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


    1. Check the installation condition of the rear height control sensor sub-assembly RH.

      OK
      Rear height control sensor sub-assembly RH is installed correctly.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here

    NG

    INSTALL PARTS CORRECTLY Click here