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:

Inspect the fuses for circuits related to this system before performing the following procedure.
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Refer to REGISTRATION [06/2018 - 01/2019] , or refer to REGISTRATION [01/2019 - 09/2019] , or refer to REGISTRATION [09/2019 - 04/2020] , or refer to REGISTRATION [04/2020 - 09/2022]
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.