Earlunas Fallo Peugeot 306

I have a problem with the windows of a Peugeot 306 have stopped working and looked at the fuses and they are fine but when disassembling the keys of the driver's door and proven that light does not arrive.
Remove the door connector and Nor does Luz arrive, someone can tell me how the connector is changed, that is, the piece that goes from the car to the door if it can be or if it can be of a relay I have no idea the electronics surpasses me.
thank you