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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting System (W/ AFS) - Diagnostic Codes (1 Of 2) >> LIGHTING SYSTEM (w/ AFS) >> DTC B2450: Height Sensor Initialization Incomplete [12/2019 - 11/2023] >> Procedure

DTC B2450: Height Sensor Initialization Incomplete [12/2019 - 11/2023]: Procedure

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

      Refer to INITIALIZATION [12/2019 - 11/2023]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > AFS > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK FOR DTC 
    1. Check for DTCs.

      Body Electrical > AFS > Trouble Codes 

      OK

      DTC B2450 is not output.

      HINT: 

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

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (INITIALIZATION WAS NOT COMPLETED) 

    Result: 

    NG 

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [12/2019 - 11/2023]