Yamaha 2012 Grizzly 300 Service Manual page 297

EBS01085
TROUBLESHOOTING
The radiator fan motor fails to turn.
Check:
1. fuse
2. battery
3. main switch
4. radiator fan motor
5. circuit breaker (fan motor)
6. thermo switch
7. wiring connections
(of the entire charging system)
TIP
• Before troubleshooting, remove the following
part(s):
1. seat
2. right side covers
3. front fender
• Troubleshoot with the following special
tool(s).
Pocket tester
P/N. YU-03112-C, 90890-03112
EBS01043
1. Fuse
• Check the fuse for continuity.
Refer to "CHECKING THE SWITCHES".
• Are the fuse OK?
YES
NO
Replace the fuse.
9-30
COOLING SYSTEM
EBS01044
2. Battery
• Check the condition of the battery.
Refer to "CHECKING AND CHARGING
THE BATTERY" in chapter 3.
Minimum open-circuit voltage
12.0 V or more at 20°C (68°F)
• Is the battery OK?
YES
EBS01041
3. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
ELEC
– +
NO
• Clean the battery
terminals.
• Recharge or
replace the battery.
NO
Replace the main
switch.