Well..it seems every sporty has its own way with door locks.
On mine, the driver key lock will lock/unlock all doors (ONE key turn, not two), and it arms the alarm when locking.
Alarm is not armed when locking from the driver door inside button. I think all of that is according to the book.

When armed, unlocking from the passenger side keylock will blow the alarm ON. I then have to insert the key in the ignition to kill the sound.

The passenger side keylock usually locks /unlocks this door only..but occasionally it will act on all 4 doors. The electrical connections tied to the passenger door key lock are obviously gone haywire...I can live with it. I must just remember to never unlock from the passenger side if the alarm is armed. ONly do it from driver side.

NOw, the rear passenger door will not unlock easily now, but that is a mechanical problem and the problem is the same when unlocking from the keylock, the inside driver door button, or the actual door knob itself. I can hear/feel the electrical action trying to act, but the blockage is mechanical. I have to pull hard and keep the pull while trying to open the door, either from the inside or the outside. That will need some oil/WD40 action after tearing the door panel out.