Hell, I have bee having a problem with my truck lately. When it was newer, I would hit the lock/unlock button on my key fob and the running lights would flash and the horn would honk when you locked it. Now, the headlights have started flashing when I hit lock or unlock if it has sat for a few mins and the windshield wipers cycle when I hit the unlock button at times....... The horn also starts to honk when I open the drivers door if it has sat for 15 mins or so. I am not sure if it would be the body control module or if its a bad ground. Im not sure where to start.