Ducati ST4S Owner's Manual page 83

Fuses
The main fuse box (fig. 81) is located on the frame left
side, behind the headlamp.
To access the fuse box, remove the left side guard of the
instrument panel (see page 49).
To expose the fuses, take off the box protective cover
(1). Mounting position and ampere capacity are marked
on box cover.
7 fuses are connected to the system. There is one spare
fuse.
E
1
fig. 81
83