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 300FACTORY OEM SERVICE PROCEDURE
Section 394 (Power Window Control System)
WARNING: This page is about a different car, the 2003 Lexus GS 430 and 2003 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
- Troubleshooting
- Window Does Not Operate With Power Window Master Switch (Manual Or Automatic Operation Can Not Be Performed)
- Remote Control Of All Windows (Except Driver's) Does Not Function With Master Switch (Windows Operate Normally With Each Of Master Switches)
- The Key Related Power Window Operation Does Not Operate With Driver Side Door Key Cylinder (Master Switch Operation Is Normal)
- Power Window Does Not Operate With Multi-Function Transmitter (Windows Operate Normally With Master Switch)
- Window Moves Down Without Being Ordered During The Up Operation
- Location
- Inspection
- Inspect Power Window Master Switch Continuity
- Inspect Power Window Master Switch Circuit
- Inspect Power Window Master Switch Illumination
- Inspect Power Window Switch Continuity
- Inspect Power Window Switch Circuit
- Inspect Power Window Switch Illumination
- Inspect Power Main Relay Continuity
- Inspect Power Main Relay Circuit
- Driver's Door: Inspect Power Window Motor Operation
- Driver's Door:
- Front Passenger's Door:
- Rear Left Side Door:
- Rear Right Side Door:
- Front Door:
- Rear Door:
- Driver's Door (Window Up):
- Front Passenger's Door (Window Up):
- Passenger's Door:
- Rear LH Side Door (Window Up):
- Rear RH Side Door (Window Up):
- Rear LH Side Door:
- Rear RH Side Door:
- Checking Of The Jam Protection Function
- Adjustment
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.