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.

1. 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.

2. 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.

3. Power window motor/pulser test

   -1. Check the power window motor/pulser.

   • Driver's 
   • Front passenger's 
   • Rear 

   Is the power window motor/pulser OK?

   YES 

   Go to step 4.

   NO 

   Faulty power window motor/pulser; replace the door regulator.

   • Front door
   • Rear door
4. 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.

   • Front door
   • Rear door

   -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.

5. 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.