Few vehicles require you to manually roll windows up and down anymore, and instead call on electricity to power window operation. So, when a window switch quits working, and there’s no manual knob to turn as a backup, it can have an undesirable impact on how you conduct activities in the car, from avoiding drive-through windows to relying on air conditioning to stay cool. Or, the window may be stuck in the down position, leaving your interior vulnerable to the elements and creating a safety hazard. Fortunately, a broken window switch is typically an easy fix.
How this system works:
The power window system has only a few components and it is relatively easy to understand how it functions: A motor gains power through wiring, which is regulated by a fuse in your vehicle’s fuse box, and it rotates when you press the window switch from inside your vehicle. The regulator inside the clutch then changes that rotation into the up-and-down movement of your window. If a problem is present in any part of the system, the power windows will not function correctly.
Common reasons for this to happen:
Blown fuse or worn relay: If none of your windows will go up or down, a blown fuse or worn relay is the likely culprit. Although these are two different issues, the symptoms will often present themselves in a similar manner. Without the proper diagnostic equipment, however, tracing a bad relay can be problematic, and you could interfere with other running systems if you start yanking fuses out to check them. Allow a professional mechanic to perform a thorough inspection.
Power window motor shorted out: When you press the window switch and cannot hear any noise coming from the vicinity of your door, there is most likely an issue with the power window motor.
Power window regulator or clutch needs replacement: If you can hear a motor running when you press the window switch yet the window doesn’t budge, the regulator or clutch in the power window system is likely bad. When this type of problem is present, the system cannot convert the motor’s rotation into vertical window movement.
What to expect:
A top-rated mobile mechanic will come to your home or office to determine why the window switch is not working. The inspection will include checking fuses and relays if none of the windows operate correctly. In the case of an issue with a specific window, the mechanic will have to remove the door panel to assess the condition of other system components and determine the exact cause of the localized problem.
After the inspection, the mechanic will provide a detailed report that describes the source and cause of the window switch issue, along with the scope and cost of the necessary repairs.
How important is this service?
While a problem with your window switch is certainly an annoyance, it does not affect your ability to get from point A to point B. However, putting off repairs isn’t wise, as there is potential for damage to your interior from inclement weather and an increased risk of theft with a stuck-open window. And a window stuck in the closed position presents a safety risk, as it can no longer be considered an exit point in an emergency.