I've ran power to my ac clutch via aux fans, but I am not getting any power to the 3-pin connector that plugs into the 3 prongs on the ac compressor. Continuity goes from the end all the way to the MAS relay. Does the clutch actually get power from the climate control unit in the cabin? Could that be faulty? MAS seems fine, especially since I swap then out and still have same issue. Please advise.

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1990 190E 3.0L