Toyota Yaris Power Window Not Working – What Could Be the Issue?

It sounds like youre dealing with an issue that could involve several potential components of the power window system. Here are a few possible causes and troubleshooting tips to consider:

Power Window Motor: The most common reason for a power window to stop functioning is a faulty motor. If you hear no noise at all when pressing the switch, the motor could be the issue. You can test the motor by checking if it receives power when you activate the switch. If the motor is not receiving power, the problem might lie elsewhere.

Power Window Switch: If the motor works fine but the window still doesnt move, the problem might be with the window switch itself. Over time, switches can wear out o r get clogged with dirt, preventing them from making proper electrical contact. You can test the switch by using a multimeter to check for continuity when pressing the button.

Wiring and Connections: The wiring that connects the switch to the motor can become damaged o r loose, causing an intermittent connection. Check the wiring for visible damage, wear, o r fraying, particularly in areas where the window moves. Sometimes, a wire might come loose o r become disconnected, stopping the window from working.

Window Regulator: Another common issue is the window regulator, which is the mechanism that moves the window up and down. If the regulator is broken o r jammed, it can prevent the window from moving, even if the motor is functioning properly. You may need to remove the door panel to inspect the regulator.

Fuse o r Relay: While you’ve checked the fuse, it’s worth revisiting the fuse box to ensure there are no issues with the fuse o r the power window relay. Sometimes, the fuse can look fine but may still be faulty o r intermittently lose contact.

Safety Feature o r Child Lock: Some vehicles have a child lock o r safety feature that disables the power windows. Double-check if any such feature has been accidentally activated.

If youre comfortable with car repairs, you could start by removing the door panel to inspect these components. If youre unsure o r unable to diagnose the problem yourself, it may be worth taking the car to a professional mechanic for further inspection and repair.