The activation of this (amber yellow) "warning" indicates that the status of the battery vehicle is low.
It is activated when the battery voltage is . 11.0 Volt.
Note
In this case, ducati recommends charging the battery as soon as possible with the specific device, as it is possible that the vehicle will not start.

Warning indication (alarms/signals)
Traction control (dtc) deactivatedRemoval-refitting of the engine assembly
Screw
Special screw
Nut
Screw
Swingarm pivot
Special screw
Washer
Spare parts catalogue
Diavel abs frame
Diavel abs swingarm
Diavel carbon
abs
frame
Diavel carbon
abs
swingarm
Important
Bold reference numbers in this section identify parts not shown in the
figures a ...
Removal of the generator cover
Note
This operation is described for an engine removed from the frame since all
reassembly procedures are easier with the
engine on the bench.
Disconnect the connector (a) from the generator cable.
Unscrew the two retaining screws (7) of the centre cap (6) over the end of
the cranksh ...
Removal of the tail light
Disconnect the connectors (a) and (b) of the tail lights (1) and (13).
Loosen the screws (4) and slide the tail lights (1) and (13) to the rear side;
recover the four spacers (3) and the washers
(14).
...