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 (MANUAL OPERATION FUNCTION)
- Turn the ignition switch ON.
- Check that the door glass moves up when the power window regulator master switch is pulled UP halfway, and the door glass moves down when the switch is pushed DOWN halfway.
- Check that the door glass moves up when the power window regulator switch is pulled UP, and the door glass moves down when the switch is pushed DOWN.
- Check that the door glasses other than the driver side door glass do not operate when the window lock switch is turned to LOCK.
- CHECK AUTOMATIC OPERATION FUNCTION
HINT:
Only steps (a), (b), and (d) are applicable to the models without the jam protection function.
- Turn the ignition switch ON.
- Check that the AUTO UP function operates to fully close the door glass when each window switch of the regulator master switch is pulled UP fully.
- Check that the AUTO DOWN function operates to fully open the door glass when each window switch of the regulator master switch is pushed DOWN fully.
- Check that the door glass stops when the applicable switch is pulled UP during AUTO DOWN operation. (However, if the switch is held in the UP position, it will change to manual operation.)
- Check that the door glass stops when the applicable switch is pushed DOWN during AUTO UP operation. (However, if the switch is held in the DOWN position, it will change to manual operation.)
- CHECK JAM PROTECTION FUNCTION (FOR DRIVER SIDE DOOR GLASS OF MODELS W/ JAM PROTECTION FUNCTION)
- Check the basic function.
NOTE:- Do not check this function using a part of your body such as a hand. Also, pay thorough attention that nothing gets caught by accident in this process.
- If the power window regulator motor assembly has just been reset, raise and lower the door glass several times using AUTO and MANUAL operation before performing check.
HINT:
The jam protection function only works during UP operation.
- Fully open the door glass.
- Insert the handle of the hammer when the door glass is almost in the fully closed position.
- Try to close the door glass with AUTO UP and MANUAL UP operation, check that the door glass moves down about 200 mm (7.87 in.) and stops there, so that the hammer handle is not caught.
HINT:
The door glass goes down by about 50 mm. However, when the opening between the glass and body is less than 200 mm, the door glass goes down by 200 mm or keeps going down for 5 seconds, and then stops.
- During DOWN operation, check that the door glass does not move up even when the window regulator master switch is pulled UP.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.