1997 PETE 377, AC on/off switch inop

As title says AC on/off switch isn't working, as in it will not command the compressor clutch on. If I use the bunk on/off switch the compressor works fine and both relays click on and off. Tried another switch out of another truck, nothing. Can't seem to find a good wiring diagram that matches the truck wire colors. I have 12v out of the back of the switch on a large white wire labeled 495A and I have 12v at another white wire labeled 631 but this one will change from 0-12v with switch. I also tested the micro switch and it is working as well, 12v across both terminals when closed. What am I missing? It seems as though its something between the switch and the fuse box but what could it be with the bunk switch working just fine?