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:

Refitting the external components
Fit the cap (39) on spring (38) until it engages. Mount ball (40), spring (38) with cap (39), washer (37) and screw (36) on the chain side half-casing by starting the screw into hole (f). Note The spring (38), with cap (39), must be oriented as shown. Tighten the screw fully home to a torqu ...

Disassembly of the rear brake control
The brake master cylinder is supplied only as a complete unit; internal components cannot be replaced. To disassemble the master cylinder's outer parts, follow the indications given in the exploded view at the beginning of this section. If the bush (10) inside the brake pedal (6) needs to ...

Reassembly of structural components and the frame
Check for the nuts with clips (8). Apply recommended grease on the threads of the adjusters (4) and the ring nuts (5) having care not to have grease on the surface (c) of the adjusters. Tighten the adjusters on the ring nut side opposite to that featuring flats until bringing the surfac ...

2026 | www.dudiavel.com |