auto door locks stopped working

More than likely the door lock actuator(s) have failed. They are basically a solenoid that moves the locking mechanism. I did a search on AutoZone, and PartsAmerica (Advance Auto) and those parts are not available at aftermarket retailers as of yet. They are a dealer only item, so you can call your local Dodge/Chrysler/Plymouth dealer and they should be able to assist you. They will run anywhere from $35 and up depending on your location.