Aux Cooling Fan troubleshoot?

[Jehu]

I was greeted the other day by myaproximately One year old Made in Germany Aux Cooling Fan suddenly going at High RPM the moment I turned the Key to Position #2 when about to start the car. The air temp at the time wasn't even 90 F.

I removed the radiator sensor plug to jumper and see what was up. I got High but no low rpm.. when I jumper the Low wire I hear the Relay clicking but the Fan doesn't spin. Is the Resistor failed? I actualy went and bought a brand new relay from BMW but may not have needed it. The wires in the relay box leading to the low speed relay all appear intact but I haven't used a volt meter or ohm meter to check anything . oh and the two fuses are OK. Any ideas?