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 workingHow to switch the dashboard on
The dashboard may switched on either from the on/off switch on the handlebar
or from the button on the hands free
system.
With the engine off, the on/off switch is turned to "run off".
With the motorcycle and dashboard off, the on/off switch is turned to "run
off".
To switch the dash ...
Removal of the control unit
Loosen the screws (1) and remove the relay supporting bracket (2), disconnect
the connectors (3) and remove the control
unit (4) from the vehicle.
...
Engine on/off
Warning
Before starting the engine, become familiar with the
controls you will need to use when riding (page 99).
Warning
Never start or run the engine indoors. Exhaust gases
are toxic and may lead to loss of consciousness or even
death within a short time.
In the presence of the active or ...