2004-2005 660 Yamaha Rhino Factory Service Manual, Page 399Get this manual
COOLING SYSTEM
4Radiator fan motor Disconnect the radiator fan motor coupler Connect the battery (12 V) as shownBattery (+) lead Blue terminal Battery () lead Black terminal 2
Check the operation of the radiator fan motorTURNS 5Circuit breaker (radiator fan motor) Remove the circuit breaker from the wire harness Connect the pocket tester1) to the circuit breaker