So your key won't turn in the door, the lock knob won't push down, & nothing happens when you push the lock button? Well, it sounds like you need to replace that bunk door lock actuator!
Does not include new mounting bracket, you must reuse your existing one.
There are a few ways to determine if your 94-98 Mustang's door lock actuator has stopped working. The first way is that the key still works in the door but nothing happens when you hit the unlock button. Or key won't even turn in the door, the door lock knob is frozen in the unlock position & nothing happens when you hit the switch.