Fault codes
Dds: horn diagnosis -> short circuit to ground (s.C. Gnd).
Dashboard: the error "claxon" (horn) is shown on the service display. The eobd warning light activates.
Wiring diagram

Db dashboard connection, s horn button. 5 Blue/white - b/w, 1 red/blue - r/b, db 19 purple/black - v/bk.
Location of connections and components

Location of left hand handlebar switchgear set connection.

Location of horn with relative connection.

Pin numbering for wiring harness side dashboard connector.
Note
Check integrity of electric circuit - short-circuit to vdc = with dashboard on, using a voltmeter, a voltage is measured between the wire tested and ground.
Check integrity of electric circuit - short-circuit to ground = with the battery cables disconnected, using an ohmmeter, continuity is detected between the wire tested and ground.
Check integrity of electric circuit - open circuit = with the battery cables disconnected, using an ohmmeter, no continuity is detected between the two ends of the wire tested.
Low beam lights not working
Turn indicators not workingWiring diagram of the hands free system
The diagram illustrates the inputs, outputs and communication lines used by
the hands free system.
1I - on/off button placed on the hands free system (located below the plastic
cover)
2I - on/off button placed on the bike handlebar rh side
3I - steering position micro-switch
4I - steerin ...
Valves - rocker arms
Closing rocker arm shaft
Opening rocker arm shaft
Opening rocker arm
Closing rocker arm (left)
Valve opening shim
Half rings
Valve closing shim
Sealing ring
Valve guide
Exhaust valve seat
Exhaust valve
Plug
Intake valve seat
Intake valve
Aluminium gasket
Closing ...
Removing of the rear wheel
Place the motorcycle on the rear service stand and engage the 1st gear.
Remove the clip (6).
Using a suitable socket wrench, loosen the wheel nut (1).
Fully unscrew the nut (1), then remove the washer (2) and the spacer (3).
Remove the rear wheel from the motorcycle.
...