AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM(for Sedan), Diagnostic DTC:B2452

DTC Code DTC Name
B2452 Abnormal Height Sensor Data at Initialization

DESCRIPTION

The headlight leveling ECU assembly stores this DTC if the sensor value received from the rear height control sensor sub-assembly is out of range when initialization of the headlight leveling ECU assembly is performed; for example, the vehicle is not level or is lifted.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2452 Height Control Sensor Data Out of Range When Initializing Vehicle condition not as specified when initializing

  • Vehicle condition when initializing

  • Headlight leveling ECU assembly

CAUTION / NOTICE / HINT

Note

Make sure to perform vehicle information synchronization and initialization after replacing the headlight leveling ECU assembly.

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PROCEDURE


  1. PERFORM INITIALIZATION


    1. Perform initialization of the headlight leveling ECU assembly.

      Click here

      Tech Tips


      • Before initializing the headlight leveling ECU assembly, make sure that the vehicle condition is appropriate for initialization.

      • Be sure to perform initialization as instructed.

      Result
      Proceed to
      NEXT

    NEXT

  2. RECHECK FOR DTC


    1. Check for DTCs.

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

      Tech Tips

      If the headlight leveling ECU assembly stores DTC B2452 even though initialization has been performed, the headlight leveling ECU assembly may be malfunctioning.

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here