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1990 thunderbird sc alarm problems

(1990 Ford Thunderbird SC)
in San Antonio, TX on August 25, 2010
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?
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Popular Answer
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
on August 25, 2010
you might have a bad door ajar switch that is triggering the alarm.
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