2000 Toyota Corolla, \r\nMy power windows are working slow; sometimes not responding to inputs. Window goes up half way and stops. They work intermittedly. What's the problem?

Have you confirmed power to switch, as well as good ground?

I would check to see if the harness that comes to the master switch is powered. Make sure the ignition is on or vehicle running and check to see if you get voltage reading with multimeter. If no reading then you need the wiring diagram to see where that harness should be fed.

Hello Susan..... What you are experiencing is the jam protection function: During automatic
closing operation, the window stops and opens half way if something gets caught
between the window and window frame. If the window receives a strong impact,
this function may work even if nothing is caught.

If the power window does not operate automatically or the jam protection function does not operate correctly, you should normalize the power window
To normalize the power window:
1. Push down the power window switch and lower the windows fully.
2. Pull up the switch until the windows close and hold the switch for a second. Make sure that the window open and close automatically. If the power windows cannot be operated properly, have it
checked by your dealer.

Hi the motor is worn out and needs replaced.This is providing the window is going up straight and rideing in the track correctly.Hope this helps.Any other questions feel free to ask.Thank You for using askya.....iluv2fisf........Ray........

I'm assuming it is a power window. It may be a loose connector in the power bezel, or over time the switch contacts have go comtaminated (moisture-rust-dirt). Remove the power bezel and inspect the connector and switch. does this impact the other windows as well? Good Luck

u have to open the door pad for inspection of power winow motor and linkages

Fuses can be tricky. Check them all to be sure.

Probably a resetting circuit breaker in the system. Some are reset when they cool off, others when keyed off. Must be something drawing too much current, or circuit breaker getting weak. Usual causes of drawing too much current in your case would be power window motors. With that said, there are some things you can try to lessen the load on the circuit such as spraying silicone down sides where felt is for easier window movement. Those areas get dried out and tend to grip glass as it's going up & down causing extra load on motor. I've also had to resort to removing door panels & spraying grease on tracks & guides inside door, to help. try silicone down sides first and see if it helps. Also make note if one window seems to cause it more than another, that gives you a good one to start on.

On each side of the Window (Could be at top or Bottom0 There are Small Slide on Wiring Connectors. Sometimes these Get Loose. I would start There.

mine is the same