Ducati Diavel Workshop Manual page 262

The Hands Free system
"Key diagnosis" error: "Encryption error". The encrypted code stored in the key is not recognised by the Hands free
system. The fault can only be viewed from the DDS after switching the dashboard on with the PIN code.
- Check that the key is correct.
- Check that the key is not damaged.
- Check that the battery key is charged.
- Check that the antenna is working correctly.
- Try to use the active key as a transponder with the antenna. To reach the antenna remove the seat (Sect. 5 - 3,
"Removal of the seat").
- Reprogramme the key.
- If none of the tests described above identify the problem, contact Ducati.
Electrical characteristics and checking component
The active key is fitted with a CR 2032 type 3 Volt lithium ion battery. Use only batteries with the same code and the
same electrical characteristics.
In the event of fault
A specific message is displayed on the dashboard if the key battery is flat. Replace the battery.
If the active key does not work or is not detected, it may still be used in transponder mode, placing the key itself against
the lower part of the clear Plexiglas windscreen.
Replacing the battery in the active key
Only use 3 Volt CR 2032 lithium ion batteries.
Note
The keys do not need to be reprogrammed after replacing the battery.
Unfold the mechanical part of the active key.
Use a large sized coin to open the plastic shells of the grip (2 D coin) as shown in the figure.
Important
Insert the coil only in the indicated point. Do not other use other objects inserted in points that are different than what is
shown, as it could damage the integrated circuit and/or the protective gasket.
Once the plastic shells have been separated, remove the printed circuit board (1) prying it up gently with a small flat
screwdriver, as shown in the figure.
Important
Insert the point of the flat screwdriver just under the printed circuit board, being very careful not to damage it. Do not
apply force on the battery or battery holder.