Ducati Diavel
Free Service and Repair manuals

Ducati Diavel Service Manual: Horn not working

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

Horn not working


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 connections and components


Location of left hand handlebar switchgear set connection.

Location of connections and components


Location of horn with relative connection.

Location of connections and components


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
Location of connections and components (A) injection relay; (b) etv relay (throttle valve operating engine); (c) radiator fan relay; (d) hands free relay. Fuses located at the rear left of ...

Turn indicators not working
Fault codes Dds: no fault code displayed. Dashboard: no fault code displayed. Wiring diagram Db dashboard connection, bbs bbs unit connection, s turn indicator button, f1 front left turn i ...

Other materials:

 Setting  menu
This menu is used to enable/disable and set some motorcycle functions. To access the "setting menu" press the button (2, fig. 14) ?  for 3 seconds. Note When within this menu no other function can be displayed. Important For safety reasons, the setting menu can only be ac ...

Transmission
Wet clutch controlled by the lever on left-hand side of the handlebar. Transmission from engine to gearbox primary shaft via spur gears. Front chain sprocket/clutch gearwheel ratio: 33/61 6-speed gearbox with constant mesh gears, gear change pedal on left side of motorcycle. Gearbox ou ...

Reassembling the electrical components support
Check the presence of clips (1), (9) and (24) on the support (5). Check the presence of rubber pads (6) and (8) and of cable grommet (7). Check that the voltage regulator (3) and the solenoid starter (18) are in place on the support (5) with their wiring as shown. The horn (22) mus ...

2026 | www.dudiavel.com |