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.
2000 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE
Body Control Systems
- Description & Operation
- Component Locations
- Trouble Shooting
- System Tests
- Notes
- Test No. 1: Ecu Power Source Circuit
- Test No. 2: Ignition Switch Power Source Circuit
- Test No. 3: Illumination Circuit
- Test No. 4: Rear Wiper/Washer Switch Circuit
- Test No. 5: Rear Wiper Motor & Relay Circuit
- Test No. 6: Headlight Switch Circuit
- Test No. 7: Taillight Relay Circuit
- Test No. 8: Headlight Relay Circuit
- Test No. 9: Key Unlock Warning Switch Circuit
- Test No. 10: Power Main Relay Circuit
- Test No. 11: Door Lock Control Switch
- Test No. 12: Door Courtesy Switch Circuit
- Test No. 13: Door Lock Motor & Relay Circuit
- Test No. 14: Door Unlock Detection Switch Circuit
- Test No. 15: Door Key Lock & Unlock Switch Circuit
- Test No. 16: Stoplight Switch Circuit
- Test No. 17: Park/Neutral Position Switch Circuit
- Test No. 18: Body Electronic Control Unit
- Component Tests
- Pin Voltage Tests
- Wiring Diagrams
Factory Service Tools
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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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