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 ES 300FACTORY OEM SERVICE PROCEDURE
Power Windows
- Description & Operation
- Component Locations
- Trouble Shooting
- Function Tests
- Self-Diagnostic System
- Diagnostic Tests
- DTC B1221: Driver's Door Power Window Active Test
- DTC B1223: Passenger's Door Power Window Active Test
- DTC B1231: Driver's Side Jam Protection Limit Switch Malfunctions & DTC B1232: Driver's Side Jam Protection Sensor Malfunctions
- DTC B1233: Passenger's Side Jam Protection Limit Switch Malfunctions & DTC B1234: Passenger's Side Jam Protection Sensor Malfunctions
- System Tests
- Component Tests
- Power Window Active Test (LH Rear Door)
- Power Window Active Test (RH Rear Door)
- Power Window Regulator Switch Circuit (LH Rear Door)
- Power Window Regulator Switch Circuit (RH Rear Door)
- Power Window Regulator Motor Assembly Circuit (Driver's Door)
- Power Window Regulator Motor Assembly Circuit (Passenger's Door)
- Power Window Regulator Motor Assembly Circuit (LH Rear Door)
- Power Window Regulator Motor Assembly Circuit (RH Rear Door)
- Power Window Regulator Motor Assembly Limit Switch & Pulse Sensor Circuit (LH Rear Door)
- Power Window Regulator Motor Assembly Limit Switch & Pulse Sensor Circuit (RH Rear Door)
- Remote Control Power Window Regulator By Master Switch
- Terminals Of Ecu
- Removal & Installation
- Connector Identification
- Wiring Diagrams
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.