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.
2007 Lexus GS 430FACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
- INSPECT POWER WINDOW REGULATOR MOTOR FRONT LH
- Apply battery voltage to connector terminals 1 and 2NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2
- Check that the motor gear rotates smoothly as follows.MEASUREMENT CONDITION CHART
Measurement Condition Specified Condition Battery positive (+) → 1
Battery negative (-) → 2Motor gear rotates counterclockwise Battery positive (+) → 2
Battery negative (-) → 1Motor gear rotates clockwise Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the motor.
- Apply battery voltage to connector terminals 1 and 2
- INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY FRONT RH
- Apply battery voltage to connector terminals 1 and 2NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2
- Check that the motor gear rotates smoothly as follows.MEASUREMENT CONDITION CHART
Measurement Condition Specified Condition Battery positive (+) → 1
Battery negative {-) → 2Motor gear rotates clockwise Battery positive (+) → 2
Battery negative (-) → 1Motor gear rotates counterclockwise If the result is not as specified, replace the motor.
- Apply battery voltage to connector terminals 1 and 2
- INSPECT POWER WINDOW REGULATOR MOTOR REAR LH
- Apply battery voltage to connector terminals 1 and 2NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2
- Check that the motor gear rotates smoothly as follows.MEASUREMENT CONDITION CHART
Measurement Condition Specified Condition Battery positive (+) → 1
Battery negative (-) → 2Motor gear rotates counterclockwise Battery positive (+) → 2
Battery negative (-) → 1Motor gear rotates clockwise If the result is not as specified, replace the motor.
- Apply battery voltage to connector terminals 1 and 2
- INSPECT POWER WINDOW REGULATOR MOTOR REAR RH
- Apply battery voltage to connector terminals 1 and 2NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2
- Check that the motor gear rotates smoothly as follows.MEASUREMENT CONDITION CHART
Measurement Condition Specified Condition Battery positive (+) → 1
Battery negative (-) → 2Motor gear rotates clockwise Battery positive (+) → 2
Battery negative (-) → 1Motor gear rotates counterclockwise If the result is not as specified, replace the motor.
- Apply battery voltage to connector terminals 1 and 2
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.