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Home >> Lexus >> 2021 >> UX 200 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System (Exterior) (Diagnostic Codes) (1 Of 2) >> Lighting System >> DTC B2451: Variation Code not Written [10/2018 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.*1

    Refer to INITIALIZATION [10/2018 - 10/2020] Refer to INITIALIZATION [10/2020 - ]

  • If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to initialize the vehicle information the No. 1 headlight ECU sub-assembly LH.*2

    Refer to INITIALIZATION [10/2018 - 10/2020] Refer to INITIALIZATION [10/2020 - ]

  • When replacing the No. 1 headlight ECU sub-assembly LH, always replace it with a new one. If a No. 1 headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
    1. *1: for Triple Beam Headlight
    2. *2: for Single Beam Headlight
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