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.
On-Vehicle Inspection
- CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH)
- Check that operation of the power windows except the driver side power window is disabled when the window lock switch of the power window regulator master switch is pressed.
- Check that the power windows can operate when the window lock switch is pressed again.
- CHECK MANUAL UP / DOWN FUNCTION
- Check that the AUTO switch of the master switch can operate the driver side power window as follows:
OK:
MASTER SWITCH OPERATION DESCRIPTIONCondition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled up UP (closes) Ignition switch ON Driver side Pushed halfway down DOWN (opens) - Check that each regulator switch can operate each power window as follows:
OK:
REGULATOR SWITCH OPERATION DESCRIPTIONCondition Regulator Switch Switch Operation Power Window - Ignition switch ON
- Window lock switch OFF
Passenger side Pulled up UP (closes) - Ignition switch ON
- Window lock switch OFF
Passenger side Pushed down DOWN (opens) - Ignition switch ON
- Window lock switch OFF
Rear LH Pulled up UP (closes) - Ignition switch ON
- Window lock switch OFF
Rear LH Pushed down DOWN (opens) - Ignition switch ON
- Window lock switch OFF
Rear RH Pulled up UP (closes) - Ignition switch ON
- Window lock switch OFF
Rear RH Pushed down DOWN (opens)
- Check that the AUTO switch of the master switch can operate the driver side power window as follows:
- CHECK AUTO DOWN FUNCTION
- CHECK REMOTE UP / DOWN FUNCTION
- Check that the power window regulator master switch can operate the power windows besides the driver side power window as follows:
OK:
MASTER SWITCH OPERATION DESCRIPTIONCondition Master Switch Switch Operation Power Window - Ignition switch ON
- Window lock switch OFF
Passenger side Pulled up UP (closes) - Ignition switch ON
- Window lock switch OFF
Passenger side Pushed down DOWN (opens) - Ignition switch ON
- Window lock switch OFF
Rear LH Pulled up UP (closes) - Ignition switch ON
- Window lock switch OFF
Rear LH Pushed down DOWN (opens) - Ignition switch ON
- Window lock switch OFF
Rear RH Pulled up UP (closes) - Ignition switch ON
- Window lock switch OFF
Rear RH Pushed down DOWN (opens)
- Check that the power window regulator master switch can operate the power windows besides the driver side power window as follows:
- CHECK PTC OPERATION
HINT:
PTC operation is a function that prevents overloading of the power window regulator by stopping the motor. PTC operation activates when the power window regulator switch is operated for a predetermined amount of time.
- Pull up and hold the power window regulator switch for more than 90 seconds. Then release the switch.
- Check that pressing the switch does not move the window.
- Wait until 60 seconds have passed since the switch was released in the first step. Check that pressing the switch results in normal window movement.
Use the Manual With the Right Hardware
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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.
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