LIGHTING SYSTEM, Diagnostic DTC:B2451

DTC Code DTC Name
B2451 Vehicle Specifications have not been Stored

DESCRIPTION

The headlight swivel ECU assembly*1 or headlight leveling ECU assembly*2 stores this DTC if the vehicle specifications have not been stored in the headlight swivel ECU assembly*1 or headlight leveling ECU assembly*2.


Tech Tips

The vehicle specifications are stored in the ECU at the factory.

DTC Code DTC Detection Condition Trouble Area
B2451 The vehicle specifications are not stored.

  • Headlight swivel ECU assembly (w/ AFS)

  • Headlight leveling ECU assembly (w/o AFS)

PROCEDURE


  1. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result Proceed to
      w/ AFS A
      w/o AFS B

    B

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    A

  2. REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY


    1. Replace the headlight swivel ECU assembly with one that has vehicle specifications stored Click here.


    NEXT

  3. PERFORM HEADLIGHT SWIVEL ECU ASSEMBLY INITIALIZATION


    1. Perform initialization of the headlight swivel ECU assembly Click here.


    NEXT

    END

  4. REPLACE HEADLIGHT LEVELING ECU ASSEMBLY


    1. Replace the headlight leveling ECU assembly with one that has vehicle specifications stored.



    NEXT

  5. PERFORM HEADLIGHT LEVELING ECU ASSEMBLY INITIALIZATION


    1. Perform initialization of the headlight leveling ECU assembly Click here.


    NEXT

    END