We start by removing the door panel to access the window components. Then we disconnect the power supply and any electrical connections to the faulty motor. After detaching the motor from the door frame, the new motor is installed in its place, and the window mechanism is reconnected. The technician would then test the new motor to ensure the window operates smoothly, making any necessary adjustments. Finally, the door panel is reattached, and the window is tested again to confirm the repair was successful.