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 workingReplacing the front phonic wheel sensor
Disconnect the front abs sensor (2) connector (a) from the main electric
wiring.
Open all the retainer clamps of the front abs sensor cable (2): refer to table
of sect. 7 - 6, Flexible wiring/hoses
positioning.
Loosen retaining screw (1) and remove the front abs sensor (2) with
ca ...
Removal of the starter motor idler gear
Slide the gear pin (21) complete with the gear (19) and washer (20).
Warning
Pay attention to the washer (20) since it may fall inside the
crankcase half.
At this point, it is possible to remove the starter motor as described in
sect. 6 - 3, Starter motor. ...
Traction control (dtc) deactivated
The activation of this (amber yellow) "warning" indicates
that dtc (ducati traction control) has been turned off.
Note
In this case, ducati recommends being very careful
when riding as the vehicle behaviour will be different in
comparison to when operating with the traction control
...