How to Diagnose a Problem with Your Car's Window Winder

Automotive Blog

As you may know, the modern-day car is built for easy operation. Virtually every creature comfort known to man is incorporated to help the manufacturers market and sell their products. However, with this ingenuity can come additional problems. For example, you may have encountered an issue with an automatic window winder and long for the day when this was simply a manual operation. You still need to solve the problem though, so where should you start looking?

Could It Be Simple?

Before you get too involved, look at the basics. Most vehicles have an automatic safety switch that will cut power to the passenger windows. Check to make sure that this switch is not activated, as this may be the root of your problem!


Next, try to operate the problem window from the master switch that is located on the driver's door. Most vehicles have two different control points, one of which is here and the other on the actual passenger door. If one works but not the other, then you know that the problem is with one of the switches and not the actual mechanism.

What happens when you try to activate the switch in question? Do you hear a humming sound from within the depth of the door? If so, then you know that power is being supplied, so it's not a blown fuse or a faulty switch.


On the other hand, if you cannot hear anything, then you should have a look in the fuse box. Take the numbered fuse out carefully and check to see if the metal strip is intact. If not, replace it, but make sure that you use one with the same rating, or you may cause additional electrical issues elsewhere.

Guides and Wiring

If the fuse is okay, then you will need to take the door panel off to have a further look at the interior components. Have a look at all the connections and wiring to see if anything has come loose. Sometimes the rubber that surrounds the window may dry out with time, and this will make it harder for the window to move up and down. This could cause a failed connection, or, in the worst-case scenario, the motor could burn out.

Regulator and Motor

If you have reached this stage and not uncovered the problem, then you may have to replace the motor or regulator. This is a more complicated job and if you don't have the patience and the right tools, you're better off leaving auto electrical problems to a professional instead.


18 July 2018

Automotive Fun and Advice

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