Troubleshooting - Yamaha 2016 Grizzly yfm700gplg Service Manual

EBS30283

TROUBLESHOOTING

If the fuel pump fails to operate.
TIP
• Before troubleshooting, remove the following part(s):
1. Seat
2. Battery cover
3. Top cover
4. Side panels (left and right)
5. Rear fender
1. Check the fuses.
(Main, ignition and fuel injection
system)
Refer to "CHECKING THE FUS-
ES" on page 9-84.
OK ↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 9-85.
OK ↓
3. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 9-81.
OK ↓
4. Check the engine stop switch.
Refer to "CHECKING THE
SWITCHES" on page 9-81.
OK ↓
5. Check the fuel injection system re-
lay.
Refer to "CHECKING THE RE-
LAYS" on page 9-88.
OK ↓
6. Check the fuel pump.
Refer to "CHECKING THE FUEL
PUMP BODY" on page 7-2.
OK ↓
7. Check the entire fuel pump system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 9-59.
OK ↓
Replace the ECU.
NG →
Replace the fuse(s).
NG →
• Clean the battery terminals.
• Recharge or replace the battery.
NG →
Replace the main switch.
NG →
The engine stop switch is faulty. Replace
the handlebar switch (left).
NG →
Replace the fuel injection system relay.
NG →
Replace the fuel pump.
NG →
Properly connect or repair the fuel pump
system wiring.
9-61
FUEL PUMP SYSTEM