What Causes the Failure of the Passenger Side Window to Roll Up or Down?
2 Answers
The passenger side window may not roll up or down if the master control switch on the driver's side is locked or if the passenger side window switch is damaged. Below are specific explanations for the reasons why the passenger side window may not operate: 1. Window lift motor failure or poor contact in the electrical wiring harness: If there is a burnt smell or unusual noises from the door panel when holding down the window button, it is likely that the window lift motor components are damaged. In such cases, it is recommended to visit a 4S shop or auto repair shop to replace the window lift motor. 2. Motor overheating protection: To protect the power supply circuit, window lift motors generally have an overheating protection mechanism. If the components overheat for any reason, the motor will enter an overheating protection state, causing the window to stop functioning. In this situation, simply wait for the motor to cool down.
Last time I encountered a malfunctioning passenger window, I realized there could be quite a few possible causes. The switch button might have gotten dust or drink stains inside, leading to poor contact over time; aging wiring can also be an issue, especially the wires near the door hinge that frequently bend and may break; a burnt-out motor is another common problem, particularly when rolling the window up and down for extended periods during rainy days; lack of lubrication in the lift bracket's guide rails can cause the rubber seal to jam, which is especially noticeable in winter; a blown fuse or a faulty door control module can also cause this. I recommend first checking if the driver's side can control the passenger window to narrow down the issue. These problems can be quite dangerous—being unable to close the window during rain can lead to water damage to electronic components. I ended up replacing the entire window regulator assembly to completely resolve the issue.
