Ducati 749S 2002 Manuel D'utilisation Et Entretien page 102

The light doubles as an indicator for the immobilizer
override procedure using the throttle twistgrip.
When no errors are present, the light should come on
when the ignition switch is set to ON and should go out
after a few seconds (normally after 1.8 – 2 sec.).
9) Gear change threshold light (red)
Indicates that control unit has activated the injection
limiter. The lower portion of the light comes on 200 rpm
below injection limiter switch-on rpm; the top portion of
the light comes on 100 rpm below injection limiter
E
switch-on rpm.
10) Control buttons
These buttons are used to display and set instrument
panel parameters.
12
LCD – Main functions
Warning
Stop the motorcycle before using the instrument
panel controls. Never operate the instrument panel
controls while riding.
1) Speedometer
Gives road speed.
2) Odometer
Gives total distance covered.
3) Trip meter
Gives distance covered since last resetting.
4) Clock.
5) Lap time.
6) Lap top speed recording.
7) Battery voltage indicator.
8) Air temperature indicator.
9) Consumption indicator.
10) Coolant temperature indicator.
Gives engine coolant temperature.
Important
Stop riding if the temperature reaches the max.
value, otherwise the engine might damage.