[carnut]

Normal operation of the factory alarm is to be armed as you exit the car and push the power door lock switch. No horn chirp or lights flashing should occur when you do this. The arming module is seeing something not fully closed. So check the pin switches at the door hinge area as well as under hood for being fully depressed when the doors or hood is shut. PLEASE PUT YEAR AND TYPE of car in your signature profile. You are missing out on responses if the reader has no idea what you are working on! My 84 Eldo would not arm and it was a poor ground at the trunk lid switch.