Can you tell me the year, model and other details. Thanks.
Does the driver side window work ok?
ren kangoo van 2006 diesel. yes, drivers side working
The first thing to check is if the power is passing through the switch properly. If it is then next test is at the window motor to see if the power is getting to it from the switch.
If there is power then the motor is faulty.
If there is power through the switch but not at the motor then you have a broken wire somewhere.
If there is no power through the switch then the switch is faulty.
If there is no power to the switch then you may have a blown fuse or broken wire to the switch. Although if drivers side works then you can assume power is getting to the switch.