: 1600x1200 px
: June 27, 2018
Use a multi-meter to confirm that the switch is getting 12V of power. Attach the leads of the multi-meter to where the electrical wires come into the switch and set the meter to DC volts. It should read 12 volts. Trace the wiring from the switch to the motor. This is the path that a signal will travel to move your window when you press the switch. Any breaks or loose connections in this path will prevent your motor from functioning properly. Use the multi-meter to confirm that the motor is getting 12V of power.
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.