Fuse/relay or fluid being low run power to the fan and make sure it comes on then start looking for the cause fuse is useally the problem friends wasent working kept blowing fuses but he only filled the overflow never checked the rad. Itself it was low filled it and bled the system now no more troubles
The most common problem is the circuit breaker. Look under the drivers seat plastic just above the skid plate in the wiring harness. There will be a limp of electrical tape and its in there. its best to relocate it up behind the drivers seat to keep it drier.