The a/c system seems full of coolant, and the compressor runs. Still blowing hot air. Would my problem be in the fuse and how would I be able to test it?

"seems full of coolant" Freon? How did you test it? The compressor runs or turns? Drive pulley turns all the time but the clutch has to engage to turn the compressor. The fuse box should show a fuse for the AC. You need to give us a little more detail of what you have tested.

Here's the situation, the a/c R138a? Refrigerant is above normal operation pressure checked with gauge. Kind of got that figured out, most likely I have a blocked expansion valve. The (I thought was a related problem) overdrive is throwing a P741 code. I noticed that when I'm not using overdrive the code never gets thrown. Also I smelll tranny fluid after a moderate drive. Moderate to me is about two hours drive time. Can you help me out with this one? I hope your reading this txgreasmonkey. Thanks in advance for your help