A/C always on

Hi to everyone! I have a 2006 Aveo and my A/C seems to be stuck on. When the car starts it comes on for a short time but doesn't go off. In the winter , I cannot get it hot enough in the car because the A/C and the heat from the vents mix and all I get is warm air.What I need is wiring diagram for the heating and A/C circuits to find out where the relays are and what controls the initial on off time of the compressor; is it a timer or is it the computer? This problem is fixed when I pull the A/C fuse out, then I get all kinds of heat.
Any help would be greatly appreciated.
Ron
Canada

I would go back and check all of the fuses again, maybe change that fuse for the heck of it just in case, but it sounds like you know what you are doing. I will look for one, I think I seen one a while ago, I will take a look (you can use the search bar at the top as well, but there may not be any threads about it).

bad ac relay, or bad switch.