Yamaha 2012 Grizzly 300 Service Manual page 291

EB806010
TROUBLESHOOTING
Any of the following fail to light: indica-
tor light, brake light.
Check:
1. Fuse (main, ignition, signal)
2. Battery
3. Main switch
4. wiring connections
(of the entire charging system)
TIP
• Before troubleshooting, remove the following
part(s):
1. seat
2. fuse box
3. front fender
• Troubleshoot with the following special
tool(s).
Pocket tester
P/N. YU-03112-C, 90890-03112
EAS00783
1. Fuse (main, ignition, signal)
• Check the fuse for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the fuse OK?
YES
NO
Replace the fuse.
9-24
SIGNAL 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
EBS01074
4.Wiring
• Check the entire signal system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the signal system's wiring properly
connected and without defects?
YES
Check the condition
of each of the signaling
system's circuits.
Refer to "CHECKING
THE SIGNALING
SYSTEM".
ELEC
– +
NO
• Clean the battery
terminals.
• Recharge or
replace the battery.
NO
Replace the main
switch.
NO
Properly connect or
repair the signaling
system's wiring.