I have a 2005 Ford 500 Limited and recently, I had a tire repair. When I got the car back, I turned on the ignition and found the alarm light below the dash blinking twice then repeating this. The alarm system no longer works, I get no codes, I have reset everything (disconnected battery overnight). The only thing that works is the horn sounds when you press the key fob. Symbol on Dash also blinks but goes off after a bit.