Why is the Volkswagen Lavida's window not rolling up or down?

[Harris]

Possible causes for the failure of all windows to roll up or down include a disconnected ground wire in the combination switch, a broken main power supply, poor contact or damage to the window relay contacts, a damaged coil, or poor contact or disconnection of the safety switch. It is recommended to visit a 4S shop for inspection and repair to determine the specific issue. Below is a partial introduction to the window regulator: 1. The window regulator is the device that raises and lowers the car's window glass, mainly divided into electric window regulators and manual window regulators. 2. Nowadays, many car window glasses' raising and lowering (closing and opening) have abandoned the manual crank method and generally adopted the button-operated electric method. The window raising and lowering method on the Lavida is the electric button-operated type.