Originally Posted by blkjack

Look at the boot that goes inbetween the door and the body of the truck the wires on the fords and alot of vehicles tend to get brittle and bust in there just pull the boot back and pull on the wires seperatly or some times you can see the broken wire there. Most of the times this is where the problem is. As far a jumping the wires I dont remember which does which without a wiring diagram.The window switches switch power and ground to make the motor either go up or down. So be carful with jumping wires you will pop fuses.