Climate Control/AC Compressor/Clutch not working. Doesn’t blow cold at all

Turn Climate Control to Max AC and blows ambient temp air only. Heater, blower and blend doors switching works fine. Pressure Sensor has 5 VDC Ref Sig.(IN) with 1VDC(OUT) and it’s Ground. No +VDC to Air Conditioner Clutch or Engine Cooling Fans (high speed). Supply +VDC to clutch connector on compressor and clutch pulls in just fine and not only does compressor sound and work well the engine cooling fans come on also. I believe my issue is in IPDM or an open in wire returning from switch in compressor to IPDM. I need more info such as wiring diagrams, pin outs and direction to test further. Any assistance would be greatly appreciated, thank you in advance. Tim