Yamaha YZF-R6TC Supplementary Service Manual page 60

EAS00809
4. Radiator fan motor (left and right)
• Disconnect the radiator fan motor coupler
from the wire harness.
• Connect the battery (DC 12 V) as shown.
Positive battery lead → blue
Negative battery lead → black
• Does the radiator fan motor turn?
YES
NO
The radiator fan
motor is faulty and
must be replaced.
53
COOLING SYSTEM
5. 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
Battery negative terminal →
Tester positive probe → black
Tester negative probe → black
• Does the radiator fan motor relay have con-
tinuity between black
YES
ELEC
green / yellow
and black ?
NO
Replace the radiator
fan motor relay.