The Immobilizer System; Keys - Ducati Monster S4RS Owner's Manual

The immobilizer system

For additional anti-theft protection, the motorcycle is
equipped with an IMMOBILIZER, an electronic system
that locks the engine automatically whenever the ignition
switch is turned off.
The handgrip of each ignition key contains an electronic
device that modulates the output signal from a special
E
antenna in the switch when the ignition is switched On.
The modulated signal represents the "password"
(which is changed at each start-up) by which the ECU
recognizes the ignition key. The ECU will only allow the
engine to start if it recognises this password.
Keys (fig. 7)
The Owner receives a set of keys, comprising:
- 1 key A (RED)
- 2 keys B (BLACK)
Warning
The red key (A) has a rubber sleeve to keep it in
perfect condition, and prevent contact with other keys.
Never remove this protection unless absolutely necessary.
The B keys are the ignition keys for normal use, and are
used to:
- start the engine
- open the lock on the fuel tank filler cap
- open the seat lock.
14
The A key performs all the same functions as the B keys
and can also be used to reset and re-program other black
keys if necessary.
Notes
The three keys have a small tag (1) attached, which
shows their identification number.
Warning
Keep the keys separate, and store the tag (1) and
key A in a safe place.
It is also advisable to use only one of the black keys to start
the motorcycle.
B
A
1
fig. 7