Power window

How to Repair Electric Car Windows

If you have electric (power) windows in your car, there may come a time that you push the button and the window doesn't respond the way it used to. If the window suddenly stops moving at all, the problem could be as simple as a blown fuse or a loose connection. It is also possible that you have a faulty switch, especially if the window works on a hit and miss basis. Window motors go down sometimes as well. This is usually characterized by a gradual decrease in how well the window responds to the switch, but a slow window could also be getting stuck on the gaskets. Once you identify the problem, you may be able to repair it with some basic tools.

Method One of Five:
Changing a FuseEdit

1. 
   1
   Locate and open the fuse box. It should be located inside the car as a part of, or near, the dash.
2. 
   2
   Check your owner's manual to locate that operates the windows. It is not uncommon that the only thing wrong with electrical components in a vehicle is a blown fuse. If this is the case with your windows you will need to replace the window fuse.^[1]
3. 
   3
   Pull the fuse straight out of its cradle.Be careful not to twist or otherwise force it. You do not want to damage the cradle or break a piece of the fuse off in the cradle. There are fuse tongs available at part supply stores that can help with this.
4. 
   4
   Locate a replacement fuse. It must be the rated for the same amperage as the original fuse that operated the window mechanism. The amp rating should be printed on the fuse, and it should also be listed in your owner’s manual. Do not use a fuse with a higher amp rating, as this may lead damaging the electrical components of your vehicle.
5. 
   5
   Push the new fuse straight down into the cradle. The fuse must be “set”. This means that it does not move or wobble.
6. 
   6
   Turn your car key to the "on" position.This provides power to your windows and allows you to test them. You need not start your car.
7. 7
   Test your windows. Confirm that they go up and down without restriction.