Troubleshooting - Yamaha MT-01 T 2005 Service Manual

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
1. Check the fuses.
(Main, ignition, fuel injection
system, and ECU)
Refer to "CHECKING THE FUSES"
on page 7-93.
OK ↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 7-94.
OK ↓
3. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 7-89.
OK ↓
4. Check the engine stop switch.
Refer to "CHECKING THE
SWITCHES" on page 7-89.
OK ↓
5. Check the relay unit (fuel pump
relay).
Refer to "CHECKING THE
RELAYS" on page 7-96.
OK ↓
6. Check the fuel pump.
Refer to "CHECKING THE FUEL
PUMP" on page 7-104.
OK ↓
7. Check the entire fuel pump system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 7-67.
OK ↓
Replace the ECU.
NG →
Replace the fuse(s).
NG →
• Clean the battery terminals.
• Recharge or replace the battery.
NG →
Replace the main switch/immobilizer unit.
NG →
Replace the right handlebar switch.
NG →
Replace the relay unit.
NG →
Replace the fuel pump.
NG →
Properly connect or repair the fuel pump
system wiring.
7-69
FUEL PUMP SYSTEM