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 workingInspection of the gear selector drum
Use a gauge to measure the clearance between fork pin and the slot on the
selector drum.
If the service limit is exceeded, determine which part must be replaced by
comparing these dimensions with those of new
components (sect. 3 - 1.1, Gearbox).
Also check the wear on the drum support pin ...
Suspensions
Front
Hydraulic upside-down fork provided with external adjusters
for rebound and compression damping and preload (for inner
springs of fork legs).
Stanchion diameter:
50 mm, coated.
Rear wheel travel:
120 mm
Rear
The shock absorber is adjustable for rebound and
compression, with remot ...
Side stand
Important
Before lowering the side stand, check that the ground
is sufficiently even and firm.
Do not park on soft or pebbled ground or on asphalt melted
by the sun heat and similar or the motorcycle may fall over.
When parking on a slope, always park with the rear wheel on
the downhill sid ...