I installed the new RCM today and all is normal. It had a 20 amp fuse in it as did the original? The wiring diagrams only show 15 amp fuses and one 40 amp. Which is correct ? I changed the 20 to a 15 as per the diagrams. I am glad someone mentioned disconnecting the SC clutch connector, to be sure my SC was working. I was shocked how unresponsive the car was. It also gave me a CEL. So in conclusion I had a "senior moment" my SC was fine all along. I needlessly replaced a cooling pump, now I have a spare. I did discover the RCM had a problem keeping the air pump from running and fixed that. I gained alot of knowledge about the electrical system. Thanks for all the responses.