I have a 96, and I had all sorts of problems with the locks. If a 95 is like a 96 (i know the remote setup is different) but the door locks are probably the same, there is a small switch on the key lock. take the inside panel off of the door, and you will find it. If the door acts properly when locked from the inside, then that switch is most likely the issue. The exterior drivers door lock is the only way to turn on the alarm with out the remote. I would check the switch and the associated wires.