Ducati Diavel Carbon ABS Owner's Manual page 107

Key-On/Key-Off using the key on the Hands
E
free lock with the active key
Key-On can be performed by pressing the button (7) on the
Hands free lock (1, fig. 81) and with the presence of the
active key (3, fig. 81).
Note
The active key (3, fig. 81) has a range of approx. 1.5 m,
therefore it must be located within this range.
Key-Off can be performed by pressing the button (7) on the
Hands free lock (1, fig. 81), also without the key (3, fig. 81).
106
7
fig. 86