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.
2002 Lexus GS 430FACTORY OEM SERVICE PROCEDURE
Power Window Motor (Front)
- Inspect the power window motor operation.
- Connect the positive (+) lead from the battery to terminal No. 1 and the negative (-) lead to terminal No. 2, and check that the motor turns clockwise. See CONNECTOR IDENTIFICATION .
- Reverse the polarity and check that the motor turns counterclockwise.
- If operation is not as specified, replace the motor. See FRONT DOOR POWER WINDOW REGULATOR under COMPONENT TESTS.
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.