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 MANUALSTOYOTA2025SEQUOIA CAPSTONEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 154 (SAFETY CONNECT SYSTEM - DIAGNOSTICS - INTRODUCTION)
2025 Toyota Sequoia Capstone
Section 154 (Safety Connect System - Diagnostics - Introduction)
2025 Toyota Sequoia CapstoneSECTION Section 154 (Safety Connect System - Diagnostics - Introduction)
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2024 Lexus RC 350, 2024 Lexus RC 300, 2023 Lexus RC 350, 2023 Lexus RC 300, and 2022 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
- Safety Connect System
- Precaution [09/2014 - 11/2017]
- Precaution [11/2017 - 10/2018]
- Precaution [10/2018 - 11/2019]
- Precaution [11/2019 - 10/2022]
- Precaution [10/2022 - ]
- Parts Location [09/2014 - 11/2017]
- Parts Location [11/2017 - 11/2019]
- Parts Location [11/2019 - ]
- System Diagram [09/2014 - 11/2017]
- System Diagram [11/2017 - 11/2019]
- System Diagram [11/2019 - ]
- System Description [09/2014 - 11/2017]
- System Description [11/2017 - 11/2019]
- System Description [11/2019 - ]
- How To Proceed With Troubleshooting [09/2014 - 11/2017]
- How To Proceed With Troubleshooting [11/2017 - 11/2019]
- How To Proceed With Troubleshooting [11/2019 - ]
- DCM Operation History [09/2014 - 11/2019]
- DCM Operation History [11/2019 - ]
- DCM Activation [09/2014 - 11/2017]
- DCM Activation [11/2017 - 11/2019]
- DCM Activation [11/2019 - ]
- Health Check [09/2014 - 11/2019]
- ACN Call End [09/2014 - 11/2019]
- ACN Call End [11/2019 - ]
- Customize Parameters [11/2019 - ]
- Initialization [11/2017 - 11/2019]
- Initialization [11/2019 - ]
- Problem Symptoms Table [09/2014 - 11/2017]
- Problem Symptoms Table [11/2017 - 11/2019]
- Problem Symptoms Table [11/2019 - ]
- Terminals Of Ecu [09/2014 - 11/2017]
- Terminals Of Ecu [11/2017 - 11/2019]
- Terminals Of Ecu [11/2019 - ]
- Diagnosis System [09/2014 - 11/2017]
- Diagnosis System [11/2017 - 11/2019]
- Diagnosis System [11/2019 - ]
- DTC Check / Clear [09/2014 - 11/2019]
- DTC Check / Clear [11/2019 - ]
- PRL Update [09/2014 - 11/2017]
- Data List / Active Test [09/2014 - 11/2017]
- Data List / Active Test [11/2017 - 11/2019]
- Data List / Active Test [11/2019 - ]
- Diagnostic Trouble Code Chart [09/2014 - 11/2017]
- Diagnostic Trouble Code Chart [11/2017 - 11/2019]
- Diagnostic Trouble Code Chart [11/2019 - ]
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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.