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Home >> Lexus >> 2024 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (Automatic Headlight Beam Level Control System (Triple Beam Headlight) - Diagnostic Codes & Circuit Tests) >> AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM (for Triple Beam Headlight) >> DTC B2450: Initialization has not been Performed [09/2014 - 10/2018] >> Procedure

DTC B2450: Initialization has not been Performed [09/2014 - 10/2018]: Procedure

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  1. INITIALIZATION HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH 
    1. Perform initialization of the headlight light control ECU sub-assembly LH.

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

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CLEAR DTC 
    1. Clear the DTCs.

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

      Body Electrical > HL AutoLeveling > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK FOR DTC 
    1. Turn the engine switch on (IG).
    2. Check for DTCs.

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

      Body Electrical > HL AutoLeveling > Trouble Codes 

      OK

      DTC B2450 is not output.

      HINT: 

      If the headlight light control ECU sub-assembly LH stores DTC B2450 even though the ECU has been initialized, there may be a malfunction in the headlight light control ECU sub-assembly LH.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (INITIALIZATION WAS NOT COMPLETED) 

    Result: 

    NG 

    REPLACE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [09/2014 - 10/2018]