1. Blown fuse: Check the fuse box for a blown fuse related to the power windows. A blown fuse can interrupt power supply to both windows.
2. Faulty power window switch: Inspect the power window switches on the driver's side door and passenger's side door. If one of the switches is faulty, it may affect the functionality of both windows.
3. Electrical issue: There may be a wiring problem or a short circuit that's preventing power from reaching the power window motors.
4. Window motor failure: Both window motors may have simultaneously failed due to wear and tear or other underlying issues.
5. Faulty window relay: If your vehicle has a window relay, it could have become faulty, affecting the operation of both power windows.
6. Damaged control module: In some cases, a faulty control module responsible for managing the power windows can cause both windows to stop working.
Troubleshooting Steps:
1. Check fuses: Locate the fuse box and check for any blown fuses. If you find a blown fuse related to the power windows, replace it with the correct amperage.
2. Test power window switches: Try operating the power window switches on both the driver's side and passenger's side to see if there's any response from the motors.
3. Inspect wiring: Look for any loose, damaged, or disconnected wiring related to the power windows. Ensure that all connections are secure.
4. Check window motor: If you can access the window motors, check for signs of damage or wear. Test the motors by applying direct power from the battery to see if they respond.
5. Test window relay: If your vehicle has a window relay, test it to ensure that it's functioning properly. Replace the relay if it's faulty.
6. Consult a professional: If the problem persists or if you're unsure about any of the troubleshooting steps, it's best to consult with an experienced mechanic or auto electrician.
Note: When troubleshooting electrical issues like this, it's important to take precautions and disconnect the battery before working on any electrical components to prevent any accidents or damage to the vehicle's electrical system.
