Ducati Diavel Service Manual: Ground connection locations
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
On the diavel, the +15v (key on power) voltage does not come from a
conventional ignition key, but from pin 30 of the
hands free relay. This relay is switched to closed state by the hands free unit ...
Electrical power for lighting and signalling devices
The front and rear running lights consist of led units with light conduits.
As a result, the light source is not visible as the
light is diffused through the surface of the light conduit.
...
Other materials:
Checking protection and safety device components
Checking the side stand switch
Remove the switch (1) from the side stand undoing screw (2) and disconnect
the main wiring connector from the switch
(see paragraph "routing of wiring on frame", sect. 6 - 1).
Use an analogue or digital multimeter (sect. 6 - 11, Using a multimeter to check
the ...
Location of elements on motorcycle
(A) injection relay; (b) etv relay (throttle valve operating engine); (c)
radiator fan relay; (d) hands free relay.
(E) ecu; (g) bbs (black box system or central electronics); (f) abs hydraulic
unit with integrated control unit.
Fuses located at the rear left of the vehicle.
...
Indication of range reached for service
When service coupon threshold is achieved, upon every key-on the system
displays the indication of the type of
intervention that is required (oil service or desmo service).
The (red) warning is activated as a large icon for 10 seconds upon every key-on
(1) then as a small warning that
remai ...