I've swapped in an Audi 3.0 diesel into my jku and now working on getting the AC system online. I am fooling the jk pcm into thinking the crank is rotating (and make my tach work) by using a couple black boxes. The PCM is also receiving an engine temp signal from a stock sensor. My stock jk cooling fans seem to be working properly. I am using the jk ac pressure transducer. Using the jk ac controls, the tipm isn't triggering the fans on or the ac compressor. Is there an input or two to the pcm that i'm missing to the pcm (besides the engine) that will tell the tipm ac is g2g?