Ducati MULTISTRADA 1200S ABS 2015 Workshop Manual page 354

Coils
The ignition coil increases the input voltage of the current alternator and brings the voltage to a value that allows
the spark creation in the spark plug.
Four coils are fitted on the vehicle, two for the horizontal cylinder (1) and (2) and two for the vertical cylinder (3)
and (4).
REMOVAL PROCEDURE
To reach the coils, remove front half-fairings
Remove the cover (5), loosening screws (6).
"Removing the front half-fairing".