The dds (diagnosis ducati system) indicates all active errors and all inactive but stored errors gathered by the bbs. A simplified summary of the active errors is also shown in the master dashboard service display when the dashboard is switched on. Simultaneously, the eobd warning light is also activated, independently of the types of the errors themselves. In the event of more than one active error, the errors are shown cyclically on the service display for 3 seconds each.
In the event of a can line fault (can off), the dashboard cannot transmit data and the electrical system behaves as follows:
If the can line fault is no longer present (fault resolved), normal operation is resumed and the can error disappears from the tank dashboard.
Other faults relative to the can line and indicated on the tank dashboard and by activation of the eobd warning light, are described as follows:

Dashboard warning and indicator light key (some of these are used to indicate faults in the electric - electronic system):
Warning
When diagnosing one of more elements in the electric - electronic system, also check that there are no error codes indicating can line faults. If any error codes relative to can line faults are noted, the relative fault must always be resolved as it may be correlated with other specific faults.
On-board computers and the can line
Operating principle of dtcRemoval of the handlebar
Unscrew and remove the screws (3) securing the upper clamp (1).
Remove the upper clamp (1).
Remove the handlebar (4) from its seat on the steering head.
To remove the grips (5), refer to the exploded view at the beginning of this
chapter.
...
Removal of the movable tensioner/timing belt
Loosen the nut (8) and remove the washer (7) and the tensioner pulley (9)
from the pin (12) on the cylinder head.
Remove the timing belt (14) from the horizontal cylinder assembly.
Important
If the belts are to be re-used, mark the direction of rotation with an
arrow and also mark the cylin ...
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
Db dashboard connection, s horn button. 5 Blue/white - b/w, 1 red/blue - r/b,
db 19 purple/bl ...