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 Windows Symptom Troubleshooting - Auto reverse power window operation malfunction
NOTE: Refer to the power windows system description in the construction and function guide.
Incorrect actuation of the power window may occur in the following situations:
- AUTO UP/AUTO DOWN operation while the vehicle is driving over bad roads.
- AUTO UP/AUTO DOWN operation while the door is opening or closing.
- Problem verification 1
-1. Start the engine.
-2. Fully open the door glass using the power window AUTO DOWN switch.
-3. Fully close the door glass using the power window AUTO UP switch.
Does the door glass reverse as it is closing, or does the door glass reverse at once, after it has completely closed?
YES
Resetting the power window control unit , then go to step 2.
NO
Intermittent failure, the power window is OK at this time.
- Problem verification 2
-1. Fully open the door glass using the power window AUTO DOWN switch.
-2. Fully close the door glass using the power window AUTO UP switch.
Does the door glass reverse as it is closing, or does the door glass reverse at once, after it has completely closed?
YES
Go to step 3.
NO
Troubleshooting is complete.
- Power window motor/pulser test
-1. Check the power window motor/pulser.
Is the power window motor/pulser OK?
YES
Go to step 4.
NO
Faulty power window motor/pulser; replace the door regulator.
- Door glass/door glass outer weatherstrip/door sash/door regulator check
-1. Remove the door panel and plastic cover, then remove the bolts holding the window glass to the regulator.
-2. Slide the window glass up and down in the run channel by hand and feel for any binding.
Does the window glass bind as it is moving up and down in the run channel?
YES
Repair or replace any parts necessary, then go to step 5.
NO
Go to resetting the power window control unit , then recheck.
- Power window operation check
-1. Resetting the power window control unit .
-2. Fully open the door glass using the power window AUTO DOWN switch.
-3. Fully close the door glass using the power window AUTO UP switch.
Does the door glass reverse as it is closing, or does the door glass reverse at once, after it has completely closed?
YES
Troubleshooting is not complete; go to step 4 and recheck.
NO
Troubleshooting is complete.
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.