This may not be the problem, but on my 95 i had problems with the door sensors keeping the system from arming. Some guy at ford told me to spray WD40 Real heavy in the door latch, i did and now the system will arm. I have to do this about once a year.
May have a bad door or hood sensor. I know you can take the door panels off and disconnect the door latch sensors but you'll lose the dome light, and disconnect the hood sensor. I haven't tried this but give it a try, that way you wont loose what ever the alarm fuse is shared with.
Last edited by GearBoxKevin; 07-03-2009 at 08:08 AM.