Cool..
Actually, there is a point to bring up here for any others reading this post..
When checking fuses for aux fan circuits, one wants to note that there are TWO fuses
One is the fuse for the sensor/coil side of the relay[ low current] and the other is for the load/contact side of the relay [ high current]
and...on top of that ...some have individual load fuses for each speed [low and high, as there are 2 relays]
soooo... if you check for a fuse problem, be aware of this before ripping stuff apart and buying sensors.

It is usually the load side fuse that blows/fatigues, but not always