Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Toyota Corolla LEFACTORY OEM SERVICE PROCEDURE
Brake Control System - Service Information
- BRAKE ACTUATOR (for HV Model)
- BRAKE ACTUATOR (for Gasoline Model)
- Components [06/2018 - 01/2019]
- Components [01/2019 - 09/2022]
- Components [09/2022 - ]
- On-Vehicle Inspection [06/2018 - 09/2022]
- On-Vehicle Inspection [09/2022 - ]
- Removal [06/2018 - 01/2019]
- Removal [01/2019 - 03/2019]
- Removal [03/2019 - 09/2022]
- Removal [09/2022 - 11/2022]
- Removal [11/2022 - 09/2024]
- Removal [09/2024 - ]
- Installation [06/2018 - 01/2019]
- Installation [01/2019 - 09/2022]
- Installation [09/2022 - 11/2022]
- Installation [11/2022 - ]
- Front Speed Sensor
- REAR SPEED SENSOR (for 2WD)
- Components [06/2018 - 01/2019]
- Components [01/2019 - 09/2022]
- Components [09/2022 - 11/2022]
- Components [11/2022 - ]
- Removal [06/2018 - 01/2019]
- Removal [01/2019 - 09/2022]
- Removal [09/2022 - 11/2022]
- Removal [11/2022 - ]
- Installation [06/2018 - 01/2019]
- Installation [01/2019 - 09/2022]
- Installation [09/2022 - 11/2022]
- Installation [11/2022 - ]
- REAR SPEED SENSOR (for AWD)
- Steering Angle Sensor
- BRAKE PEDAL STROKE SENSOR (for HV Model)
- VSC Off Switch
- Components [06/2018 - 01/2019]
- Components [01/2019 - 09/2022]
- Components [09/2022 - ]
- Removal [06/2018 - 01/2019]
- Removal [01/2019 - 09/2022]
- Removal [09/2022 - 11/2022]
- Removal [11/2022 - 09/2024]
- Removal [09/2024 - ]
- Inspection [06/2018 - 09/2022]
- Inspection [09/2022 - ]
- Installation [06/2018 - 01/2019]
- Installation [01/2019 - 09/2022]
- Installation [09/2022 - 11/2022]
- Installation [11/2022 - 09/2024]
- Installation [09/2024 - ]
- Brake Hold Switch
- Brake Control Power Supply
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.