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 Toyota MR2 C56FACTORY OEM SERVICE PROCEDURE
Body Control Systems
- Description & Operation
- Component Locations
- Trouble Shooting
- System Tests
- Notes
- Test No. 1: Ignition Switch Does Not Operate In Each Position
- Test No. 2: Key Unlock Warning System Buzzer Does Not Sound
- Test No. 3: Open Door Warning Light Does Not Operate
- Test No. 4: All Power Windows Will Not Operate
- Test No. 5: Auto Down Function For Driver's Door Power Window Does Not Operate
- Test No. 6: Only One Power Window Does Not Operate
- Test No. 7: Power Window Lock System Does Not Operate
- Test No. 8: Power Door Lock Does Not Operate On Any Door
- Test No. 9: Power Door Locks May Not Be Locked Or Unlocked When Using Power Door Lock Control Switch
- Test No. 10: Power Door Locks May Not Be Locked Or Unlocked When Using Power Door Lock Control Switch & The Key
- Test No. 11: Power Door Locks May Not Be Locked Or Unlocked When Using The Key, Or Two-Operation Unlock Function Does Not Operate
- Test No. 12: Key Confinement Prevention Function Does Not Operate
- Test No. 13: Power Door Lock Does Not Operate Only On One Door
- Test No. 14: Body Electronic Control Unit Does Not Operate
- Component Tests
- Pin Voltage Tests
- Removal & Installation
- 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.