Actuators are basically an electric motor the plunger is on a geared track. The motor moves one direction to lock the door, and the reverses to unlock. The thing is then to power the actuator to work you need (2) relays wired for reversing polarity or internal relay setup inside of an alarm brain or central locking unit. Are you refering to the S-13 doorlocks? is it and SE model? The locking system on the S-13 has no external electric switches to lock the doors usually. to lock them you push the lever on the drivers door, or use the key in either door. does this work in your car? If so then it sounds like who ever put your alarm in (and removed it ) didn't know what thery were doing, and added an extra actuator that was not neccesssary, since both doors already have the factory ones installed. if you need help with an alarm or keyless entry install, I can provide some help with wiring colors and locations. If you think it's too complicated. Take it somewhere for professional help llike Best Buy, or another Car Stereo and Security specialist. Ask for MECP certified installations, preferably someone who has at least the basic certification, not just "X" years of experience. good luck
