Ducati Diavel Carbon ABS Owner's Manual page 109

Key-On/Key-Off using the key on the Hands
E
free lock with the passive key
Key-On can be performed by pressing the button (7) on the
Hands free lock and with the presence of the passive key (4,
fig. 81).
Note
The passive key (4, fig. 81) has a range of a few cm,
therefore the key (4, fig. 81) must be positioned near the
antenna (2). Remove the seat (see "Removal of the seat" on
page 121) to access the antenna (2).
Key-Off can be performed by pressing the button (7) on the
Hands free lock (1, fig. 81), also without the key (4, fig. 81).
108
7
fig. 89
2
fig. 90