Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the...
Toyota technical service bulletin T-SB-0107-20 Rev for 2022 Toyota Corolla, 2021-2022 Toyota Tundra and 2021-2022 Toyota Sienna Hybrid and others.
- Bulletin number
- T-SB-0107-20 Rev
- Component
- Electrical system
- Summary
- TSB: Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of TIS and the Calibration Update Wizard (CUW). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the Techstream ECU flash reprogramming process
Owners of these vehicles have filed 132 complaints in the electrical category.
Vehicles covered
- Toyota Corolla 2022 2022
- Toyota Tundra 2021-2022 20212022
- Toyota Sienna Hybrid 2021-2022 20212022
- Toyota Venza Hybrid 2021-2022 20212022
- Toyota RAV4 Prime 2021-2022 20212022
- Toyota BZ4X 2023 2023
- Toyota Mirai 2021-2022 20212022
- Toyota Tundra Hybrid 2022 2022
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