Recently got new motor in car, and while double checking fluids, connections, operation of everything I noticed my High speed switch that is wired to green/yellow wire on high speed relay would no longer work. I had a new Casper high/low switch and 2 new fan relays so I disconnected my old switch and installed Casper switch and both new fan relays. With ignition on I check high and low, both relays will click on and off but no cooling fan action. Manally checked cooling fan and it was OK. Checked the 3 pin connector plug going to cooling fan and NO power on any of the terminals!!!!! I don't think the car has to be running in order for the Casper swith to work. Need some ideas!!!