* Faulty Window Switch: The most likely cause is a problem with the power window switch itself. The switch might be sticking, internally shorted, or have worn-out internal components causing it to send a continuous signal to the window motor, even when not pressed.
* Wiring Issues: A short circuit or frayed wiring in the door harness can send power to the window motor continuously. This is especially common in areas where the wiring is frequently flexed as the door opens and closes. Look for any obvious damage or exposed wires.
* Window Regulator Problems: While less likely to cause *continuous* rolling down, a malfunctioning window regulator (the mechanism that moves the window up and down) can sometimes get stuck in the down position.
* Door Lock Actuator: In some models, a faulty door lock actuator can interfere with the window operation. This is less common but a possibility.
* Body Control Module (BCM): A malfunctioning BCM (the computer controlling various vehicle functions) could be sending the wrong signal to the window motor, though this is less probable than the other issues.
* Aftermarket Alarm System: If you have an aftermarket alarm system installed, it may have a faulty setting or malfunction that's causing the windows to roll down.
Troubleshooting Steps:
1. Check the Window Switch: Try the other switches to see if the problem is isolated to one window or is affecting multiple windows. If you have a multimeter, you could test the switch for continuity to see if it's sending a signal even when it's not pressed. Be cautious when working with electricity.
2. Inspect the Wiring: Carefully examine the wiring harness in the door for any damage, exposed wires, or corrosion. Pay close attention to where the wires bend and flex.
3. Disconnecting the Switch: If you're comfortable working with car electrical systems, disconnect the power window switch connector. If the window still goes down, the problem is elsewhere (wiring, regulator, or BCM).
4. Check the Fuses: While less likely to cause a window to *continuously* roll down, a blown fuse could be causing intermittent problems. Check your owner's manual to locate the appropriate fuse for the power windows.
If you're not comfortable working with car electrical systems, it's best to take your Sebring to a qualified mechanic. They have the tools and expertise to diagnose the problem accurately and safely repair it.
