Bypass switch for AC clutch fan

I am trying to rig up a bypass switch for my AC clutch fan. Where is the electrical switch or what wires would I need to tap into to make said bypass? The clutch fan wont kick on and it's way to hot. I can fix when I get home this is just temporary. Any help is much appreciated.

 

Its a DD15 2013 freightliner cacadia. The fan is locked in place when the ignition is turned over to the accessories . When i crank her on and the psi builds up, it free spins. I watched a guy on youtube stop his fan by hand while the truck is running and fan was engaged. He was able to spin freely as if the clutch wasnt engaged. I did the same thing. Lol i know right....i was able to spin the fan freely as if wasnt engaged.. any way i could by pass and maually switch it on/off? Second question by installing manual switch would it make my AC run again?

 

Realy thats it? Unplugin both those things wil keep it running? Could this be why my AC isnt working? From what i read, a bad AC will affect the temps on the engine. You wouldnt happen to know how i could go bout checking the AC system . With out having to spend so $$ at Loves or Sapps. Or maybe troubleshoot a few things to narrow it down a bit. Would realy apreciate it

 

Im not sure if its accurate or not, I read somewhere if u turn over the key to the accessories [to the right] the fan should spin freely. But if u cant spin then its seized up

 

Im sorry i miss read the first post.