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Home >> Lexus >> 2024 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Automatic Headlight Beam Level Control System (Single Beam Headlight) - Diagnostic Codes & Circuit Tests) >> AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM (for Single Beam Headlight) >> DTC B2451: Vehicle Specifications have not been Stored [09/2014 - 10/2018] >> Procedure

DTC B2451: Vehicle Specifications have not been Stored [09/2014 - 10/2018]: Procedure

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  1. SYNCHRONIZE VEHICLE INFORMATION 
    1. Synchronize the vehicle information.

      Refer to INITIALIZATION [09/2014 - 11/2017] , or refer to INITIALIZATION [11/2017 - 10/2018]

      Body Electrical > HL AutoLeveling > Utility 

      Tester Display
      ECU Information Sync

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. RECHECK FOR DTC 
    1. Using the Techstream, recheck for DTCs.

      Refer to DTC CHECK / CLEAR [09/2014 - 10/2018]

      Body Electrical > HL AutoLeveling > Trouble Codes 

      OK

      DTC B2451 is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY. Refer to  REMOVAL [09/2014 - 10/2018]