Yamaha 2004 Rhino 660 YXR660FAS Service Manual page 400

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4. Radiator fan motor
• Disconnect the radiator fan motor coupler.
• Connect the battery (12 V) as shown.
Battery (+) lead → Blue terminal 1
Battery (–) lead → Black terminal 2
• Check the operation of the radiator fan
motor.
5. Circuit breaker (radiator fan motor)
• Remove the circuit breaker from the wire
harness.
• Connect the pocket tester (Ω × 1) to the
circuit breaker.
Circuit breaker resistance
Zero Ω at 20 °C (68 °F)
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COOLING SYSTEM
TURNS
MEETS
SPECIFICATION
9 - 48
DOES NOT TURN
Replace the radiator fan motor.
OUT OF SPECIFICATION
Replace the circuit breaker.
– +
ELEC