How To Install Replace Window Regulator Jeep Grand Cherokee 99-04 - 1AAuto.com 2001 2004 Jeep Grand Cherokee Power Window Regulator with Motor Front...

cable? (electric>?)
here is the page on motor;reg.

1. Disconnect and isolate the battery negative cable.
2. Remove the window regulator from the door.
   • Remove door trim panel.
   • Remove isolator.
   • Remove front door glass.
   • Loosen bolts attaching regulator to inner door panel.
   • Remove bolt attaching regulator to inner door panel.
   • • Lift regulator upward to disengage bolts from door inner panel.
     • Disengage power window regulator harness connector, if equipped.
     • Remove regulator through access hole in door
   • Place the window regulator on a suitable work surface and remove the screws that secure the power window motor to the window regulator.
   • Remove the power window motor from the window regulator.

if its electric a fuse could be bad or a shortage in the wiring

I think you have to remove the motor and regulator as a complete unit. Check with a parts store and ask for "Dorman Solutions" repair part.

Power Window Motor: Service and Repair
REMOVAL
1. Disconnect and isolate the battery negative cable.
2. Remove the window regulator from the door.
3. Place the window regulator on a suitable work surface and remove the screws that secure the power window motor to the window regulator.
4. Remove the power window motor from the window regulator.
INSTALLATION
1. Position the power window motor onto the window regulator.
2. Install and tighten the screws that secure the power window motor to the window regulator. Tighten the screws to 9 Nm (80 in. lbs.).
3. Install the window regulator onto the door.
4. Reconnect the battery negative cable.

not hard at all remove the door panel and you will see 5 bolts with a slot so you do not have to remove the bolts just loosen them. There is 2 clips that hold this to the window remove them. The hole thing will come out. Look on E Bay buy a new window regulator $40.