Ducati ST4S Owner's Manual page 85

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Legend of the wiring diagram of electric
system/injection
1) Horn
2) Immobilizer aerial
3) Right switch
4) Main relay
5) Fuse box
6) Immobilizer CPU
7) Ignition key unit
8) Starter motor
9) Solenoid starter
10) Battery
11) Water temperature sensor (instrument panel)
12) Fan
13) Rear right-turn indicator
14) Tail light
15) Number plate light
16) Rear left-turn indicator
17) 12V power outlet
18) Fuel tank
19) Self-diagnosis
20) Horizontal cylinder coil
21) Vertical cylinder coil
22) Horizontal cylinder spark plug
23) Vertical cylinder spark plug
24) Horizontal cylinder injector
25) Vertical cylinder injector
26) Throttle position sensor
27) Engine rpm/timing sensor
28) CPU coolant temperature sensor
29) 5.9M CPU
30) Regulator fuse
31) Regulator
32) Generator
33) Stand light switch
34) Neutral light switch
35) Oil pressure switch
36) Rear stop light switch
37) Front stop light switch
38) Turn indicator flasher
39) Left switch
40) Instrument panel
41) Lights relay
42) Front left-turn indicator
43) Headlamp
44) Front right-turn indicator
45) Injection relay
46) Fan relay
47) Air pressure/temperature sensor
48) Tester power supply
49) Clutch switch
E
85

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