1990 thunderbird sc alarm problems on 1990 Ford Thunderbird SC

My thunderbird has the keypad entry on it. When i lock the doors the alarm sets, a minute or so later the alarm goes off. I have to keep it inlocked for now. How do you reset the alarm? Am I doin something wrong?

by in San Antonio, TX on August 25, 2010
2 answers
ANSWER by on August 25, 2010
you might have a bad door ajar switch that is triggering the alarm.
ANSWER by on March 11, 2011
Mine is the same, if all doors are shut and I lock it with the key pad the alarm does not go off