Diagnosing a malfunctioning power window, specifically issues with the Window Motor Switch or the motor itself, doesn’t need to be an overwhelming task. With a basic understanding of how these systems operate and familiarity with your car door’s window regulator style, you can efficiently pinpoint the problem.
If your car window hasn’t experienced the sudden “pop & drop” and you’re not hearing unusual cracking, grinding, or strange sounds from inside the door panel, your power window regulator is likely functioning correctly. In this case, the next step is to investigate the power window motor and the window switch.
Often, you can determine the source of the problem with your power window motor or window switch without even removing the door panel. A simple observation of your headlights or dome lights can reveal if the motor is receiving power. The electrical demand from the window motor can cause a noticeable, albeit slight, fluctuation in the power supplied to other electrical components.
For the most effective test, perform this check at night with your engine turned off, but the ignition and headlights switched on. Press the window switch to operate the window. If you observe a slight dimming of your headlights, dashboard lights, or dome light when you activate the switch, it indicates that electrical power is reaching the switch and being sent to the motor. If this dimming occurs, but you hear no motor activity, it’s highly probable that the power window lift motor itself is the issue. In some instances of motor failure, you might hear a repetitive clicking sound when the switch is engaged.
Conversely, if you press the window switch and there is no dimming of your lights, the problem is likely located in the window switch itself or somewhere within the electrical wiring harness leading to it. Pay attention to the feel of the window switch button. If the button feels unusually spongy, loose, or different in resistance compared to other window switches in your car, it’s a strong indication that you may need a window switch repair or replacement.
If you are in the Phoenix area and struggling with diagnosing a power window motor or window switch problem, Power Window Repair is here to assist. Contact us today for a complimentary diagnosis and estimate. Our experienced technicians will quickly identify the necessary power window repair and provide you with a reliable quote. Call (480)570-5116 now!
