I've locked and unlocked it without problems before. But when I locked it and unlocked it today, the alarm came on and I dont know how to turn it off. All I have is a simple key and I had to disconnect the battery to turn it off. Whenever I connect it the alarm turns back on. So I just left the battery disconnected.
I'm not real good on these but fuse 39 underhood is for the horn stop. If try operating with a different key fob for that car if you have one. Then try resetting if it will an dchech your gorunds for corrosion they are at left and right kick panels, engine and right trunk.