APRILIA Tuono V4 1100 Factory Service Station Manual page 513

Tuono V4 1100 Factory
When sensors (3) detect a significant speed difference between the rear and the front wheels (for
example, when rearing up on the back wheel), the ABS system could take this as a dangerous situation.
In this case, 2 things may occur:
- the ABS system intervenes by releasing pressure from the calliper until the wheel turns again at the
same speed of the other wheel; it is not possible to brake for an instant.
- if the speed difference lasts long, the system may detect an error and deactivates the ABS system.
As a consequence, the system works as any regular braking system.
Riding with an active ABS system
•
During the vehicle start-up, after the in-
strument panel initial check, the ABS
warning light stops flashing when the
speed is under 5 km/h (3.1 mph).
If the ABS warning light remains on when the
vehicle is running, it means that a fault has
been detected and the ABS system has been
automatically deactivated.
IN CASE OF FAILURE OR WITH ABS DISCONNECTED,
THE VEHICLE OPERATES AS IF IT DID NOT HAVE THIS
SYSTEM.
NOTE
WHEN THE IGNITION KEY IS TURNED, IF THE SYSTEM IS FUNCTIONING CORRECTLY, THE
ABS INDICATOR LAMP WILL FLASH (THE SYSTEM IS ACTIVATED AS SOON AS THE VEHICLE
SPEED EXCEEDS 5 km/h - 3.1 mph)
Riding with the ABS system inactive
The warning light remains on in the stead state, the system has been deactivated.
Braking system
BRAK SYS - 513