Jeep windows Windows won't go up or down

SOURCE: My 2002 jeep grand cherokee

I had the same problem with mine. I have the same year Jeep. The Remote door lock also wouldn't work (Not on drivers door anyway!). Here's what I had found out from a co-worker with same vehicle. The wires in the door that run to the control panel on door for windows has been broken. You probably have several broken wires inside the "Rubber boot" you see when opening the door. You will have to take off the interior door panel, be careful to remove any wires and rod connectors when doing so. Then open the rubber seal. Find where the wires come in to door. Remove boot. Locate broken wires inside the boot section. You will then need to sodder in a 1'-2' wire to extend the broken wire(s). You may also decide to extend the unbroken wires now, just so you might not have to go through all of this again, later. I hope this helps out. I had found out it is a very common Jeep Grand Cherokee problem.