Yamaha XT660R(S) Automobile User Manual


 
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ELEC
COOLING SYSTEM
EAS00809
YES
NO
YES
NO
EAS00813
YES
NO
4. Radiator fan motor
Disconnect the radiator fan motor coupler
from the wire harness.
Connect the battery (DC 12 V) as shown.
Positive battery lead
red
1
Negative battery lead
black
2
Does the radiator fan motor turn?
The radiator fan
motor is faulty and
must be replaced.
5. Radiator fan motor relay
Disconnect the radiator fan motor relay
from the wire harness.
Connect the pocket tester (
×
1) and bat-
tery (DC 12 V) to the radiator fan motor ter-
minal as shown.
Check the radiator fan motor for continuity.
Battery positive terminal
red/white
1
Battery negative terminal
green/yellow
2
Positive tester probe
brown
3
Negative tester probe
blue
4
Does the radiator fan motor relay have con-
tinuity between brown and blue?
Replace the radiator
fan motor relay.
6. Wiring
Check the entire cooling systems wiring.
Refer to CIRCUIT DIAGRAM.
Is the cooling systems wiring properly
connected and without defects?
Replace the ECU. Properly connect or
repair the cooling
systems wiring.
+
Br
L
R/W
G/Y
1
2
3
4