2. Check the window motor. The window motor is responsible for powering the window regulator. If the motor is damaged, it may not be able to provide enough power to lift the window all the way up. To check the motor, connect a 12-volt power source directly to the motor. If the motor does not work, it will need to be replaced.
3. Check the window switch. The window switch is the control that allows you to raise and lower the window. If the switch is damaged, it may not be able to send the correct signal to the window motor. To check the switch, test the switch with a multimeter. If the switch is not working properly, it will need to be replaced.
4. Check the window tracks. The window tracks are the channels that the window slides up and down in. If the tracks are damaged or dirty, they may prevent the window from moving freely. To clean the tracks, use a vacuum cleaner and a brush. If the tracks are damaged, they will need to be replaced.
5. Reset the window motor. Sometimes, the window motor can simply become "stuck." To reset the motor, disconnect the battery for a few minutes, then reconnect it. This will reset the motor and allow it to function properly again.
