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.
2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Test No. 56: One Touch Power Window Feature Does Not Operate
WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When power window switch on driver door is pushed completely downward and then released, or pulled completely upward and then released, the driver power window will fully open or fully close. This feature is commonly called AUTO UP/AUTO DOWN or one touch power window operation.
Test current of driver door one touch power window circuit. See DRIVER DOOR ONE TOUCH POWER WINDOW CIRCUIT under COMPONENT TESTS. After necessary repairs are made, perform confirmation test. See CONFIRMATION TEST .
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.