Hello Justin,
Sounds pretty messed up, that.
Let's start here: Your central locking system is electro pneumatic. A pump in the spare wheel pan either pressurizes (opening) or vacumizes (locking) the individual central locking elements in the door shell. These same elements in FL and FR door and in the trunk contain also the switches. All switches have a 3-pin connection.
Your vacuum system seems to be ok. Once you lock/ unlock the vehicle, all elements work and the pump won't run for more then 5 sec.? Right?
What must have happened is, that when your door was done, the connector to the element fell apart. They love to do that. They just crumble away. Then the guy mixed up the 3 pins in that same connector. So have a look if that connector is still original.
Also correct the rod adjustment in the element. It's probably in too deep.
Go fix it.
All the best.
Dokta