The negative cable, which is normally connected to the negative pole of the battery, is fastened to the crankcase. From here, the cable branches off and splits up within the electrical system to carry the ground connection to the different elements in the system.

The image shows the ground connection on left side of the engine crankcase.
The battery charging circuit and power distribution
Electrical power for lighting and signalling devicesMaintenance indicator
This function indicates that the vehicle is about to or has
travelled a distance for which an authorised ducati service
centre should be contacted to have the general maintenance
or oil change performed.
Maintenance table
First warning - oil service 1000 km
The first warning is activated a ...
Description of the clutch assembly
The clutch is disengaged by a drive unit consisting of a thrust piston (c)
accommodated inside a small cap mounted to
the generator cover. This piston (c) pushes a pushrod (b), which runs through
gearbox primary shaft and operates the Pressure plate (4)
located on top of the clutch plate pack ...
Introduction to the engine control system
The engine control system used on the diavel consists of the following
elements:
Ride-by-wire system (motorised throttle valves with electric actuator,
throttle grip position sensor and throttle valve
position sensor)
One injector per cylinder installed downstream of throttle valve
On ...