The activation of this (amber yellow) "warning" indicates that the hands free system has detected that the battery that permits the active key (a) to communicate and turn the vehicle on is almost discharged.
Note
In this case replace as soon as possible the battery as indicated in sect. 6 - 8 "Replacing the battery in the active key".


Hands free key (hf) not recognised
High engine coolant temperatureCoverage
Warranty defects shall be remedied during customary
business hours at any authorized ducati motorcycle dealer
located within the united states of america in compliance
with the clean air act and applicable regulations of the
united states environmental protection agency and the
california air r ...
Injection and ignition
Introduction
Ignition is via a single stick coil per cylinder installed in the spark plug
well. Each thermal unit is supplied by a single
injector, placed under the throttle valve. The amount of fuel injected and the
ignition advances are determined by the
control unit specifically for each c ...
Location of elements on motorcycle
(A) injection relay; (b) etv relay (throttle valve operating engine); (c)
radiator fan relay; (d) hands free relay.
(E) ecu; (g) bbs (black box system or central electronics); (f) abs hydraulic
unit with integrated control unit.
Fuses located at the rear left of the vehicle.
...