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.
2001 Lexus LX 470FACTORY OEM SERVICE PROCEDURE
Section 187 (Body Control System)
WARNING: This page is about a different car, the 2002 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
- Description & Operation
- Component Locations
- Trouble Shooting
- Connector Identification
- Circuit Tests
- Notes
- Diagnosis Circuit
- Door Courtesy Switch Circuit
- Door Key Lock & Unlock Switch Circuit
- Door Lock Control Switch Circuit
- Door Lock Motor & Relay Circuit
- Door Unlock Detection Switch Circuit
- Headlight Relay Circuit
- Ignition Switch Power Source Circuit
- Illumination Circuit
- Key Unlock Warning Switch Circuit
- Light Control Switch Circuit
- Memory Switch Circuit
- Park/Neutral Position Switch Circuit
- Power Main Relay Circuit
- Power Source Circuit
- Rear Wiper & Washer Switch Circuit
- Rear Wiper Motor & Relay Circuit
- Stop Light Switch Circuit
- Taillight Relay Circuit
- Component Tests
- Pin Voltage Tests
- Removal & Installation
- Wiring Diagrams
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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