Hi, Thanks so much for the quick reply, I think I need to supply more info though:
The system is not an alarm - just keyless entry.
All the doors (including rear door) open when the drivers door is unlocked (either by key or by hand from inside) - so I know at least, that all the passenger doors have actuators. By then it occured to me, that if the only way to unlock the drivers door is by key or hand from inside, why would Subaru have put an actuator in there? So what I'm seeing is a keyless entry system opening everything except the drivers door, and therefore, i must get an actuator?!
Does this make any sense?
Also, I opened a rear passenger door up, and tested the two wires leading to the acutator as I locked the drivers door. Each lock/unlock sent a pulse of about +12v and -12v, but the drivers door wires are +12v when unlocked and 0v when locked.
I will check out the diagrams on the website you gave.
Thanks again, I really feel in the dark here!