Yamaha FJR1300R Service Manual page 544

EAS00809
4. Radiator fan motor (test 1)
• Disconnect the radiator fan motor coupler
from the wire harness.
• Connect the battery (12 V) as shown.
Battery positive lead → blue 1
Battery negative lead → black 2
• Does the radiator fan motor turn?
YES
EAS00810
5. Radiator fan motor (test 2)
• Disconnect the coolant temperature sensor
coupler from the coolant temperature sen-
sor.
• Connect the green/white 1 and black/blue
2 terminals with a jumper lead 3 shown.
G/W B/L
• Does the radiator fan motor turn?
YES
NO
The radiator fan
motor is faulty and
must be replaced.
NO
The radiator fan
motor is faulty and
must be replaced.
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COOLING SYSTEM
6. Radiator fan motor relay
• Disconnect the radiator fan motor relay
from the wire harness.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the radiator fan motor terminal
as shown.
• Check the radiator fan motor of continuity.
Battery positive terminal → red/white 1
Battery negative terminal →
Tester positive probe → brown/black 3
Tester negative probe → blue 4
G/Y R/W
L
Br/B
• Does the radiator fan motor have continuity
between brown/black and blue?
YES
– +
ELEC
green/yellow 2
+
NO
Replace the radiator
fan motor.