Car Alarms: 93 jeep laredo alarm, jeep laredo, impact sensor

Question
when i lock the doors and leave the car, everytime i come back to the car, the alarm is going off. i have witnessed that no one is around the vehicle when the alarm is triggered.  it sounds like a factory alarm because the horn just honks. if there is a way to disable the alarm system or reset it so it works the way it is supposed to that would be greatly appreciated.

thanks,
Thomas Schaffer

Answer
Take a look at all of the switches in the door jams that turn on the interior light as well as the pin for the hood.  A factory content alarm does not have any type of impact sensor, so I would have to think one of the pin switches is bad and causing the alarm to think some one is opening a door or the hood.