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.
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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 162 (WIRELESS DOOR LOCK CONTROL SYSTEM (W/ SMART KEY) - DIAGNOSTICS - INTRODUCTION)
2025 Toyota Highlander XLE, FWD
Section 162 (Wireless Door Lock Control System (W/ Smart Key) - Diagnostics - Introduction)
2025 Toyota Highlander XLE, FWDSECTION Section 162 (Wireless Door Lock Control System (W/ Smart Key) - Diagnostics - Introduction)
WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, 2023 Toyota Corolla Cross, and 2022 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
- WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Key System)
- Precaution [09/2021 - 11/2022]
- Precaution [11/2022 - ]
- Parts Location [09/2021 - 11/2022]
- Parts Location [11/2022 - ]
- System Diagram [09/2021 - 11/2022]
- System Diagram [11/2022 - ]
- How To Proceed With Troubleshooting [09/2021 - 11/2022]
- How To Proceed With Troubleshooting [11/2022 - ]
- Operation Check [09/2021 - 11/2022]
- Operation Check [11/2022 - ]
- Customize Parameters [09/2021 - 11/2022]
- Customize Parameters [11/2022 - ]
- Problem Symptoms Table [09/2021 - 11/2022]
- Problem Symptoms Table [11/2022 - ]
- Terminals Of Ecu [09/2021 - 11/2022]
- Terminals Of Ecu [11/2022 - ]
- Data List / Active Test [09/2021 - 11/2022]
- Data List / Active Test [11/2022 - ]
- Diagnostic Trouble Code Chart [09/2021 - 11/2022]
- Diagnostic Trouble Code Chart [11/2022 - ]
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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.