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.
2008 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE
Rear Power Window Switch: Inspection
- INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY
- Measure the resistance according to the value (s) in the table below.
Standard resistance
STANDARD RESISTANCE SPECIFICATIONTester Connection Switch Condition Specified Condition 2 (UP) - 5 (GND) Manual UP operation Below 1 Ω 10 (DOWN) - 5 (GND) Manual DOWN operation Below 1 Ω 4 (AUTO) - 5 (GND) AUTO UP / DOWN operation Below 1 Ω If the result is not as specified, replace the power window regulator switch assembly.
- Check that the LED illuminates.
- Apply battery voltage to the power window regulator switch and check that the LED illuminates.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK
BATTERY VOLTAGE SPECIFICATIONMeasurement Condition Specified Condition Battery positive (+) → 8 (LED)
Battery negative (-) → 5 (GND)LED illuminates If the result is not as specified, replace the power window regulator switch assembly.
- Measure the resistance according to the value (s) in the table below.
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.