Need a little help…. I’m stumped.

07 Grizzly 700 eps

The fan quit working, which isn’t the first time, but this time is different as I can’t figure out why.

I was originally only getting 4 volts to the circuit breaker in the back. Not 100% but I think thats going to be a mud in the fuse box issue, as I can’t possibly imagine why else.

I jumped 12 volts to the wire but the fan still didn’t work. I can jump a ground to the sender wire that comes from the ecu and the fan will start working. I have already replaced the temp sensor. but I jumped the wires across the temp sensor anyway and still no go.

Its almost like I’ve got 2 issues, the power coming from the fuse box and the computer not sending the signal. Has anyone ran into either of these two problems?