Well it finally happened. With 124K, no AC on our 2010. I put a charger on the Low side and it showed 0 pressure. Now I would prefer to just see how long a charge will get me if there is a small leak in the system. The Chilton manual is worthless in identifying the switch plug and which wires to jump to spin the pump. I have a guess that its the plug on the High pressure line that is next to the "window" in the line but that plug has 3 wires on it and no where on the net can I find the answer to what should be a rudimentary question so here I am. Can anyone point out exactly the 2 wire pins that need the jumper?