Lexus SC400 Window Motor
Common Problems with the Lexus SC400 Window Motor
A stuck window would certainly make your Lexus SC400 look bad. Unfortunately, problematic windows aren't all that uncommon in modern vehicles, and the most common culprit would be a bad window motor. A lot of factors can result in a broken Lexus SC400 window motor and it's best to rule them all out before you consider replacing this expensive component. Don't worry; you can get your windows working again with the help of our handy guide below.
A blown fuse will definitely keep all your windows from working, so it's best to take a look at your vehicle's fuse box first before you start opening your door panels to gain access to your window motors. You simply have to replace the blown fuse and check all of your windows again to see if they're working.
Once you've ruled out a blown fuse, then you have to check your jumper terminals and see if you have a bad relay instead. You just need to take out the jumper terminals that power your windows and replace them with some new jumpers. Test your windows to see if this solves the problem.
If only one window is having a problem, then you might want to check its switch to see if it's working properly. You'll need to open your vehicle's door panel and attach a volt meter to see if the switch is working. Sometimes, dirty or even loose connectors can affect a switch's performance. Clean the metal contacts and make sure that all connections are properly attached to rule out any other problems with your window's switch.
Broken window motor
Once you've exhausted all other possibilities, then it's time to check the window motor itself. Most window motors are sealed components, so you can hardly repair them when they wear out and will need to replace them instead. You'll need to gain access to your Lexus SC400 window motor by opening your vehicle's door panel. Using a volt meter, test your window motor and see if the probes on your volt meter light up. If your volt meter isn't registering anything, then you'll have to replace your window motor.