The Immobilizer System - Ducati DIAVEL Owner's Manual

The Immobilizer system

For improved anti-theft protection, the motorcycle is
equipped with an IMMOBILIZER, an electronic
system that inhibits engine operation whenever the
ignition switch is turned off.
The grip of each ignition key contains an electronic
device that modulates the output signal from a
special antenna located under the seat when the
ignition is switched On.
The modulated signal acts as a password (which is
different at each start-up) and tells the ECU that an
"authorised" ignition key is being used to start up the
engine. When the ECU recognises the signal, it
enables engine start-up.
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