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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Lighting System (Except HEV) (W/ AFS) - Diagnostic Codes (1 Of 2)) >> LIGHTING SYSTEM (for Gasoline Model with AFS) >> DTC B2451: Variation Code not Written [06/2018 - 09/2022] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

    Refer to INITIALIZATION [06/2018 - 06/2021] , or refer to INITIALIZATION [06/2021 - 09/2022]

  • When replacing the headlight ECU sub-assembly LH, always replace it with a new one. If a 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.
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