Here is my situation guys. The hoses from my heater, coming from the firewall, have been disconnected from the water pump and I am in the process of putting the whole setup back in place. I was looking under the dash and I found a single wired switch with "Air" stamped on it? There is one wire on it that seems run to the rear of the heater motor, not sure yet, need to dig in deeper to make sure. The switch has a ceramic resistor on it and it has a place for what seems to be a fuse. The side where the "fuse" goes,has a small screw with an electrical eyelet attached,and I can see where a wire used to be attached to it, but no longer is and no sign of the loose wire in sight. Anyone have some info? Thanks!
