LIGHTING SYSTEM, Diagnostic DTC:B2451

DTC Code DTC Name
B2451 Vehicle Specifications have not been Stored

DESCRIPTION

This DTC is output if the vehicle variation information is not written to the headlight ECU sub-assembly LH.

The headlight ECU sub-assembly LH outputs DTC B2451.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2451 Vehicle Specifications have not been Stored Vehicle specification information not written Headlight ECU sub-assembly LH

CAUTION / NOTICE / HINT

Note

After the headlight ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.

Click here

PROCEDURE


  1. VEHICLE INFORMATION HEADLIGHT ECU SUB-ASSEMBLY LH


    1. Register vehicle information for the headlight ECU sub-assembly LH.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Clear the DTCs.

      Click here

      for Single Beam Headlight:


      Body Electrical > HL AutoLeveling > Clear DTCs

      for Triple Beam Headlight:


      Body Electrical > AFS > Clear DTCs

    2. Turn the power switch on (IG).

    3. Check for DTCs.

      Click here

      for Single Beam Headlight:


      Body Electrical > HL AutoLeveling > Trouble Codes

      for Triple Beam Headlight:


      Body Electrical > AFS > Trouble Codes
      OK
      DTC B2451 output does not occur.
      Result
      Proceed to
      OK
      NG

    OK

    END (NORMAL AFTER VEHICLE INFORMATION REGISTERED)

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here