just want to add my notes here. I know its a long gone conversation..But the lower pin supplies 12V at all times and the continuity through the solenoid supplies 12 to the other wire and pin. The solenoid is activated by grounding the upper pin lead through the ECU it seems to me..Now MY question is how much magnetic force should result. I grounded the pin and no click in the cam. A very weak amperage seemed present and I sensed a very weak magnetism at the center of the coil instead ot the strong pull one might expect, say enough to make a washer stick tigltly to the coil....Im wanting to ask Pelican staff and looking for the right page for my question..