The electric power window raises and lowers the side windows. It consists of switches, relays, electric motors, power window and wires. The reversible electric motor is mounted in each door.
The electric drive is activated either by the main switch on the driver's door or by remote switches on each of the doors. Lowering or lifting is controlled by the position of each of the switches.
The drive circuit is protected by a fuse and a circuit breaker. An individual circuit breaker is additionally mounted in each electric motor, so that if one drive fails, the drives of the remaining windows do not turn off.
The electric power window only works when the ignition is on. Most vehicles have a lockout switch that disables the power of other windows except the driver's (on parts of cars only rear windows).
The following are general troubleshooting procedures that you can perform yourself. If the malfunction cannot be eliminated with their help, then contact a car service.
If the power windows of all windows do not work, then first check the fuse and circuit breaker.
If the power windows of only the rear windows do not work, then check the closure of the contacts of the blocking switch. If the contacts do not close, replace the switch.
Check the condition of the wiring between the switches and the fuse, repair if necessary.
If only one window regulator does not work, then check the main switch and the switches of the remaining windows (except for the driver's).
If the power window operates only from one switch, then check all the switches.