1. Blown fuse.
- Check the fuse box near the battery for a blown fuse.
- Replace the blown fuse with one of the same amperage.
2. Wiring issue.
- Inspect the wiring between the fuse box and the window motor for any damage.
- Repair or replace any damaged wiring.
3. Faulty window motor.
- Test the window motor with a voltmeter.
- Replace the motor if it is not receiving power.
4. Faulty window switch.
- Test the window switch with a voltmeter.
- Replace the switch if it is not sending power to the motor.
5. Faulty window regulator.
- The window regulator is the mechanism that moves the window up and down.
- If the regulator is faulty, it can cause the window not to clear.
6. Debris or obstruction in the window track.
- Remove any debris or obstructions that may be blocking the window from closing properly.