Reversing polarity on k9-Five alarm

Let me see if I understand, when you arm the car your doors lock & when you disarm the car the doors also lock?

What kind of car/year is it?

If it is an import, most will be negative trigger door locks, so just verify the correct wires have been hooked up.

Most domestics are either positive trigger or reverse polarity (unless it has a keyless entry/factory alarm), either case would require the use of relay because the K9 provides a negative output on the door locks triggers.  Trace the wires back to the relays and verify the correct wires were used and if the relays were wired for the correct application.

Either case, look up your car for wiring info on this site. 

What you have by adding door actuators is a reverse-polarity system.  There should be two relays external of the K9 alarm brain.  I would trace the door lock/unlock output from the brain to the relays, then test relays and make sure the wires are on correct relay pins.

Forgive me if I am stating the obivious, basically a door actuator (2 wire type) works the same as a power window motor.  Two wires, when one wire has positve voltage & the other wire is grounded  the actuator moves in one direction.  To get the actuator to move in the opposite direction you switch the power and ground on the subsequent wires.  For example say the door lock actuator has two wires, green & blue.  When I put postive voltage on the green wire & ground the blue wire, the actuator locks the door.  Then to unlock, I would put positive voltage on the blue wire & ground the green wire.  This is what the relays accomplish.  There are pictures of different relay configurations under the basics's section.  Here is  what your should be:

Pin 30, goes to the actuator, using my example from above, I would take the green wire from the driver's door, combine it with the green wire from the passenger's door and connect them both to Pin 30 on the left relay.  I would do the same thing with the blue wires from each door and connect them to pin30 of the relay on the right.

Once you have found the relays in your car, verify what the wires connected are.   Test the operation of each door actuator, individually, by applying a positive & ground on the actuator wires.  Match the wires up for each door, so you know through testing them, that they will either both lock or unlock together.  Do not rely on just matching the wire colors, match them up through testing.  Also the operation of relay is explained the Basic section, it will give you a better understanding of how one works.

Good luck & post your results..