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

Component Locations

COMPONENT LOCATIONS

Component

Location

Body ECU (Driver Side Junction Block)

⁽¹⁾

DOOR 1 Fuse

⁽²⁾

DOOR 2 Fuse

⁽³⁾

Driver Door ECU (Power Window Regulator Master Switch)

⁽¹⁾⁽⁴⁾

ECU-IG Fuse

⁽³⁾

Window Regulator (Front Door)

⁽⁴⁾

Window Regulator (Rear Door)

⁽⁵⁾

Passenger Door ECU (Power Window Regulator Switch)

⁽¹⁾

Power Window Regulator Motors

⁽¹⁾⁽⁴⁾⁽⁵⁾

Power Window Regulator Switch (Rear Door)

⁽⁵⁾

⁽¹⁾	See Fig 1.

⁽²⁾	Located in the engine room junction block in the left engine compartment.

⁽³⁾	Located in the driver side junction block in the lower finish panel.

⁽⁴⁾	See Fig 2.

⁽⁵⁾	See Fig 3.

Fig 1: Identifying Power Window Component Locations

Chapter Navigation

Return to Chapter: Power Windows

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.