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.

Click here

PROCEDURE

  1. PERFORM INITIALIZATION

    1. Perform initialization of the headlight leveling ECU assembly.

      Click here

      Tip:

      • 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.

      Click here

      Body Electrical > HL AutoLeveling > Trouble Codes

      OK

      DTC B2452 is not output.

      Tip:

      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