Troubleshooting - Yamaha MTN1000 2016 Service Manual

EAS30503

TROUBLESHOOTING

TIP
• Before troubleshooting, remove the following part(s):
1. Rider seat/Air scoop/Air scoop stay/Side cover
2. Fuel tank cover
3. Fuel tank
4. Air filter case
5. Canister
6. Throttle bodies
1. Check the fuses.
(Main, ignition, backup, radiator fan
motor and sub radiator fan motor)
Refer to "CHECKING THE FUSES"
on page 8-194.
OK
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-195.
OK
3. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-191.
OK
4. Check the radiator fan motor.
Refer to "CHECKING THE RADIA-
TOR FAN MOTORS" on page
8-204.
OK
5. Check the radiator fan motor relay.
Refer to "CHECKING THE RE-
LAYS" on page 8-198.
OK
6. Check the coolant temperature sen-
sor.
Refer to "CHECKING THE COOL-
ANT TEMPERATURE SENSOR"
on page 8-204.
OK
7. Check the entire cooling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-29.
OK
Replace the ECU.
Refer to "REPLACING THE ECU
(Engine Control Unit)" on page 8-194.
Replace the fuse(s).
NG
• Clean the battery terminals.
• Recharge or replace the battery.
NG
Replace the main switch.
NG
Replace the radiator fan motor.
NG
Replace the radiator fan motor relay.
NG
Replace the coolant temperature sensor.
NG
Properly connect or repair the cooling sys-
tem's wiring.
NG
8-31
COOLING SYSTEM