Today I repaired my RCM and it was ready anyday. At first glance, it appeared to be fine. Then under a lighted magnafied glass, you could see the studs were not soldered in properly on two of the 3 joints.

But my biggest suprise was the corrosion(?) I found on plug B. I sprayed it out with circuit board cleaner and found no damage on any of the contact pins. Before going back together, I put a light coat of Truck-Lite anti-corrision compound on all the plugs/pins. See pics.

Thanks again DJ and a great forum for information.