(blue).
It turns on to indicate that the high beam lights are on.

Illuminates when engine oil pressure is too low. It must turn on at key-on, but must turn off a few seconds after the engine has started.
It may come on briefly if the engine is very hot, but should go out again as engine speed increases.
Important
If this light (4) stays on, stop the engine or it may suffer severe damage.
(amber
Comes on when fuel is low and there are about 4 litres of fuel left in the tank.
Illuminates and flashes when the turn indicator is in operation.
It turns on in the case of "engine" and/or "vehicle" errors and in some cases will lock the engine.

(*) Depending on the model, each calibration of the engine
control unit may have a different "setting" for the
thresholds that precede the rev limiter and the rev limiter
itself. 
Note
If the over rev function light and the dtc intervention light should both come on at the same time, the instrument panel gives priority to the over rev function.
(amber yellow)
This turns on to indicate that abs is disabled or not Functioning.
Instrument panel (dashboard)
Lcd unit functionsOxygen sensors
Introduction
An on-off type oxygen sensor (in normal operating conditions, the voltage
generated by the sensors switches between a
value close to 1v and a value close to 0v) is mounted on each of the exhaust
manifold of the diavel.
Each oxygen sensor has its own internal heater, which recei ...
Symbols
Ducati motor holding s.P.A. Advises you to read this manual
carefully in order to become familiar with your motorcycle. If
in doubt, please contact a ducati dealer or authorised
service centre. The information contained herein will prove
useful on your trips - and ducati motor holding s.P.A. Wis ...
Bleeding of the abs hydraulic system
If some "sponginess" is detected on the brake control, due to air bubbles in
the system, bleed the system, as indicated in
sect. 4 - 3, Changing the brake fluid.
Before bleeding a brake pump, move back the calliper pistons, as indicated in
(sect. 4 - 3, Changing the brake fluid) to Drain in ...