Making Automobiles Great Again
Hopefully the issue is with the actuator, and not with the door itself. On some Jeep Grand Cherokees that I've worked on of the same time period, the issue was the door spindle itself broke. You could turn it all day long and it wouldn't move the door. But you will know whether or not that is your issue when you remove the actuator and try to turn the spindle with your fingers, it should only turn maybe 1/8-1/4 turn at most in either direction, and should come to a hard stop on each end of movement. You should also hear the door move when doing so. Well, you'll hear the door thump to a stop in each direction if you are in fact moving the door. When the spindle breaks on the Jeeps, it is obvious when you turn it with your fingers as the spindle will just turn freely and have no hard stop in either direction.