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 GS 300FACTORY OEM SERVICE PROCEDURE
Jam Protection Limit Switch Circuit
- If Lexus hand-held tester is not available, go to next step. If Lexus hand-held tester is available, check jam protection limit switch using DATA LIST MODE. If jam protection limit switch is okay, perform check for next fault listed under appropriate symptom. See TROUBLE SHOOTING . If jam protection limit switch is not okay, go to next step.
- Check jam protection limit switch. See JAM PROTECTION LIMIT SWITCH under COMPONENT TESTS. Repair as necessary. If jam protection limit switch is okay, go to next step.
- Check wiring harness and connectors between jam protection limit switch and driver door ECU. See WIRING DIAGRAMS . Repair as necessary. If wiring harness and connectors are okay, perform check for next fault listed under appropriate symptom. See TROUBLE SHOOTING .
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.