If just one of your doors is not working, then you can just replace the actuator and that should solve your problem. I sell power lock actuators for $6 each + $1 shipping.

If more than one of your doors isn't working, then I would recommend replacing your Factory power locks with a power lock system from Jeep-Power-Locks.com . The kits start at just $29, and I highly receommend a keyless entry system for only $40 more.

If you have a Jeep Grand Cherokee where you can program you keyless entry to open just one door, or all of your doors, these replacement power lock actuators will not support that function.