Yamaha F150A Service Manual page 480

Ignition unit
1. Engine ECM
2. Pulser coil
3. Thermoswitch
4. Ignition coil
5. Air pressure sensor
6. TPS
7. Engine temperature sensor
8. Shift position switch
9. Shift cut-off switch
10. Air temperature sensor
11. Joint connector 1
12. Joint connector 2
13. Fuse box
14. Battery
15. Starter motor
16. PTT relay
a. Fuse (50A) (engine battery)
b. Fuse (50A) (house [accessory] battery)
c. Fuse (20A) (engine ECM, ISC valve, fuel injector, high-pressure fuel pump, ignition coil)
d. Fuse (20A) (engine start switch, PTT switch)
e. Fuse (30A) (starter relay)
f. Main relay
A. To remote control
*1. The connecting points for the same colored wiring within the coupler can be changed.
A-4