Got problem with my alarm 2003 ranger...when i got the truck three months ago the alarm horn was unplugged...so i plugged it back in....so doors unlocked...open drivers door..horn blows ...had to use key fob to stop it, doors lock and open with key fob.. it looks like the alarm goes off when doors are opened...closing hood.....i think its the lock module....let me know part # and location..also junkyard might be cheaper..