why are my power windows not working in my Volkswagen Passat B8 (2015-2022)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Inspect and Replace Fuses

• Locate the fuse box (usually under the dashboard or in the engine compartment).
• Remove the fuse for the power windows using a fuse puller or pliers.
• Inspect the fuse for continuity; replace with a new fuse of the same amperage if it is blown.

3. Check Window Switches

• Remove the door panel carefully using a trim removal tool.
• Disconnect the window switch connector.
• Use a multimeter to test the switch for continuity when pressed; replace the switch if faulty.

4. Inspect Wiring and Connectors

• Visually inspect the wiring harness for any signs of wear, fraying, or corrosion.
• Tighten any loose connectors to ensure proper contact.
• Repair or replace damaged wires as needed.

5. Test and Replace Window Motor (if necessary)

• Locate the window motor within the door panel.
• Disconnect the motor's electrical connector.
• Use a multimeter to check for voltage at the connector while operating the switch.
• If no voltage is present, the issue may lie upstream; if voltage is present and the motor does not operate, replace the motor.
• To replace the window motor, remove the motor mounting screws, detach the motor, and install the new one in reverse order.