I hit a dog and when doing so it loosened the computer plug as i kept driving for a few days when is go over bumps stuff would flicker on and off. I went over a big bump and then my car died. When checking what was wrong we noticed that the plug was undone. Once plugged back in the air conditioning panel will not turn on.I had it looked at and the guy said my ac works but my panel ccould be bad. Is this true and how much to repair it.