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.
Power Window Control System: Inspection
- POWER WINDOW SYSTEM CIRCUIT
- INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Inspect the master switch continuity.
[Driver's switch (Window unlock & lock)]
Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
[Front passenger's switch (Window unlock)] Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
[Front passenger's switch (Window lock)] Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
[Rear left switch (Window unlock)] Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
[Rear left switch (Window lock)] Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
[Rear right switch (Window unlock)] Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
[Rear right switch (Window lock)] Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the master switch.
- Inspect the master switch illumination.
Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the master switch.
- Inspect the master switch continuity.
- INSPECT POWER WINDOW REGULATOR SWITCH ASSY
- Inspect the front passenger's regulator switch continuity.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the regulator switch.
- Inspect the front passenger's regulator switch continuity.
- INSPECT POWER WINDOW REGULATOR SWITCH ASSY REAR
- Inspect the rear regulator switch continuity.
Standard:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the regulator switch.
- INSPECT POWER WINDOW REGULATOR MOTOR
- Inspect the regulator motor operation.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
