Yamaha MT-03 Service Manual page 367

ELECTRICAL COMPONENTS
1. Starter relay
2. Main fuse
3. Battery
4. Fuel pump
5. Throttle position sensor
6. Coolant temperature sensor
7. Fuel injector
8. ECU (electronic control unit)
9. Lean angle cut-off switch
10. Turn signal/hazard relay
11. Headlight relay
12. Radiator fan motor relay
13. Relay unit
14. Rectifier/regulator
15. Sidestand switch
16. Crankshaft position sensor
17. Stator coil
18. Horn
8-40