Yamaha MT-01 T 2005 - Troubleshooting

FUEL PUMP SYSTEM
7-69
EAS27570
TROUBLESHOOTING
If the fuel pump fails to operate.
NOTE:
• Before troubleshooting, remove the following part(s):
1. Seat
2. Fuel tank
3. Air filter case
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
1. Check the fuses.
(Main, ignition, fuel injection
system, and ECU)
Refer to “CHECKING THE FUSES”
on page 7-93.
Replace the fuse(s).
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 7-94.
• Clean the battery terminals.
• Recharge or replace the battery.
3. Check the main switch.
Refer to “CHECKING THE
SWITCHES” on page 7-89.
Replace the main switch/immobilizer unit.
4. Check the engine stop switch.
Refer to “CHECKING THE
SWITCHES” on page 7-89.
Replace the right handlebar switch.
5. Check the relay unit (fuel pump
relay).
Refer to “CHECKING THE
RELAYS” on page 7-96.
Replace the relay unit.
6. Check the fuel pump.
Refer to “CHECKING THE FUEL
PUMP” on page 7-104.
Replace the fuel pump.
7. Check the entire fuel pump system
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 7-67.
Properly connect or repair the fuel pump
system wiring.
Replace the ECU.