Air conditioner signal integration

[LS1GMCTruck]

'04 & up is serial-data controlled A/C correct? Always wondered how that works, lol.

[93blackbeast]

I have the PCM Wiring for the setup, but I just don't know what I need to do.

On the Green PCM Connector

Pin 14 is the A/C Pressure Signal
Pin 15 is the charge indicator control (I don't know if this is volts or freon)
Pin 43 is the A/C compressor clutch relay signal

I'm guessing its one of those, but I'm not certain. The blue connector didn't have any A/C related things on it that I could see.

Thanks again guys,

Cody B.