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.
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HOMESERVICE MANUALSTOYOTA20184RUNNER SR5, 4WDREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSWINDOWS / GLASS - SERVICE INFORMATIONFRONT PASSENGER SIDE POWER WINDOW SWITCHINSPECTION [08/2015 - ]PROCEDURE
2018 Toyota 4Runner SR5, 4WD
Inspection [08/2015 - ]: Procedure
2018 Toyota 4Runner SR5, 4WDSECTION Procedure
- INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition 6 (UP) - 1 (GND) Manual up operation Below 1 Ω 7 (DOWN) - 1 (GND) Manual down operation Below 1 Ω 8 (AUTO) - 1 (GND) Auto up/down operation Below 1 Ω 6 (UP) - 1 (GND) Not operated 10 kΩ or higher 7 (DOWN) - 1 (GND) Not operated 10 kΩ or higher 8 (AUTO) - 1 (GND) Not operated 10 kΩ or higher - 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.
OK
Measurement Condition Specified Condition Battery positive (+) → 4 (LED)
Battery negative (-) → 1 (GND)LED illuminates - If the result is not as specified, replace the power window regulator switch assembly.
TEXT IN ILLUSTRATION*1 LED *a Front view of wire harness connector
(Power Window Regulator Switch Assembly)
- Apply battery voltage to the power window regulator switch and check that the LED illuminates.
- Measure the resistance according to the value(s) in the table below.
RENDER: 1.0x
NO RELATED
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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.