2002 Ducati Monster 620 i.e. Owners Manual - Page 86

E 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. Accommodated in the handgrip of each ignition key is an electronic device that modulates an output signal. This signal is generated by a special antenna incorporated in the switch when the ignition is turned on and changes every time. The modulated signal acts as a "password" and tells the CPU that an "authorised" ignition key is being used to start up the engine. When the CPU recognises the signal, it enables engine start-up. Note The three keys have a small plate (1) attached that reports their identification number. Important Keep the keys in different places. Store the plate (1) and the key A in a safe place. It is also recommended to use always the same black key to start the bike. Keys (fig. 4.1) The Owner receives a set of keys comprising: - 1 RED key A - 2 BLACK keys B The keys B are regular ignition keys and are used to: - start up the engine - open the lock of the fuel tank filler plug - open the seat lock. The key A performs the same functions as the keys B, and is also used to wipe off and re-program other black keys, if needed. B A 1 14 fig. 4.1