Hi guys the other day I noticed my cars heating almost never works on both sides. meaning one side is always cold and the other very hot. I also noticed that even with it set to off it will blow hot air sometimes and sometimes cold air. I know when I hold the off and auto button or whatever it is to get codes I get 2 that are both 13 and now the pixels are starting to disappear. I know my leg gets really hot I mean really hot next to the heater core? I now my mother had to slowly change between the temp changes.