Auto Air Conditioning & Heater Repair: 1999 Ford F250 superduty A/C inop, compressor clutch, clymers

Question
This is a 4/4 and triton V-10. System is charged and have good fuses. Have power at a/c cycle switch both sides. and high pressure switch both sides.
I have ground at  compressor clutch but no power. Having trouble determining if power is  controlled by ECM via Relay or not but I think it is. Also unable to determine what relays are what in fuse/relay panel. I looked at the owners manual for the a/c clutch relay as clymers says there is one. this controls power to the a/c clutch. I am not able to find any a/c related relays in either fuse/relay panels except the blower relay.  

Answer
I'm sorry Joel I was also unable to locate a wiring schematic for the compressor clutch, and the for the relay alldata told me there is a relay but did not give a location for it. What I would try to do next is trace the wire from the compressor clutch back to where ever it runs to and see where it leads me. Sorry I couldn't be of more help.