I had problems with my window module too. Get a volt meter and ckeck the switch and the wire line for impedance. I ended up haveing to replace the whole module, really easy to do yourself but the part new is expensive. You might also want to make sure the window's just not seised, you could have over heated the wires trying to put it down once when it was stuck and this could have caused your problems. Hope you are able to figure this out and you don't end up having to rewire anything.