Mini ALL4 1.6L A/C Problems
 

Hi. I would appreciate help if Is possible. I am working.
On a 2012 mini cooper countryman s all4 1.6l. The A/C is not engaging. Green light comes on in the A/C button but compressor clutch does not engage. I have traced the compressor clutch wires to the junction box in the right foot well. F24 Fuse is good and Power is going to the infamous k19 relay and the relay is working. Jumped power from F24 to the white wire running to the Compressor and the compressor engaged and all work Perfectly. pressuresare right, cool air is flowing out the vents, everything functioned. So I thought it was the heater/Air conditioning control unit not telling the relay to engage, so I swap it out with a Certified used one. Still not working. I unfortunately don't have a scanner that will scan BMW A/C control systems so I do not know any codes set, which I know would help me a lot. I'm sure. But my next step is to possibly replace the pressure switch. Which unfortunately means have to drain and recharging the system. But I don't know for sure if it is the pressure switch and not sure if I can check or how to since it is a three wire sensor. You can't just jump it. Any thoughts and help in this would be very appreciated.