The power window switches are located inside the car, usually on each door. This switch takes input from either the driver or other passengers and sends power to the window motor, which opens or closes the window. The common reason for the window to not move up or down is a fuse, window regulator, or window motor failure. If the power window switch is not controlling the windows, it may not be a malfunctioning switch. Instead, it could be a problem with the window motor, fuse, or regulator.