I would suspect water in the fuse box pasenger side under glove box,drop it down unplug all conectors remove and lookfor green coroded pins if yes new fuse box req plus fix water leak,dont forget your radio will need recoding &both remote fobs,Pos the alarm,open drivers window get out and single lock the car waight 1 minuet then reach in and open door from inside the hazard lights should flash and alarm should sound if one hapens with out other then alarm is falty depending wether your care is specd with one that is,,,
Steven,s, January 2012