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Why is my Toyota Yaris power windows not working?

If your Toyota Yaris power windows are not functioning, there could be several potential causes. In this article, we'll explore the common reasons behind this issue and provide you with steps to troubleshoot and potentially resolve the problem.


Common Causes of Power Window Failure in Toyota Yaris


There are a few primary reasons why the power windows in a Toyota Yaris may stop working:



  • Faulty Power Window Motor - The power window motor is responsible for raising and lowering the window. If the motor fails, the window will not operate.

  • Blown Fuse - The power windows are connected to the vehicle's electrical system, and a blown fuse can prevent them from functioning.

  • Wiring Issues - Damaged or loose wiring in the power window circuit can disrupt the electrical connection and cause the windows to stop working.

  • Switch Failure - The power window switch, located on the door panel, may malfunction and prevent the window from being controlled.


Determining the exact cause of the power window failure is the first step in resolving the issue.


Troubleshooting Steps


To diagnose and potentially fix the power window problem in your Toyota Yaris, follow these steps:



  1. Check the Fuse - Locate the fuse box, usually found in the engine bay or under the dashboard, and inspect the fuse for the power windows. If the fuse is blown, replace it with a new one of the same amperage.

  2. Inspect the Wiring - Visually inspect the wiring harness running from the fuse box to the power window motor. Look for any signs of damage, such as fraying, cuts, or loose connections.

  3. Test the Power Window Switch - Operate the power window switch and listen for the motor to engage. If the switch is not functioning, it may need to be replaced.

  4. Check the Power Window Motor - If the switch is working, the issue may be with the power window motor itself. You can test the motor by connecting it directly to the battery to see if it operates.


If the troubleshooting steps do not resolve the issue, it may be necessary to have a professional mechanic diagnose and repair the power window system in your Toyota Yaris.


Preventive Maintenance


To help prevent future power window issues, it's important to regularly maintain your Toyota Yaris. This includes:



  • Checking Fuses - Inspect the fuse box periodically and replace any blown fuses.

  • Inspecting Wiring - Visually check the power window wiring for any signs of damage or wear.

  • Lubricating Moving Parts - Apply a small amount of silicone-based lubricant to the power window mechanism to keep it functioning smoothly.


By following these preventive maintenance steps, you can help ensure the long-term reliability of your Toyota Yaris power windows.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.