PIAGGIO Vespa GTS 300 HPE 2019 Owner's Manual page 22

- Frequency of 1 flash per second (2 Hz), with the key in "ON" position and the vehicle
at a standstill: The system is active and the calibration is performed. The specific icon
will switch off as soon as the ABS system is operational.
- Frequency of 1 flash every 2 seconds (0.5 Hz), with the key in "ON" position and the
vehicle at a standstill: the system calibration is in progress.
- Switched on steady can have three meanings:
1. calibration procedure performed incorrectly. Perform a new calibration;
2. the ASR system is not operating and will not intervene in case of loss of grip;
3. the ASR system has been willingly disabled.
•
If the deactivation was voluntary (by pressing the appropriate button "1" for
1 second with the engine running) it is recommended to reactivate the system
as soon as possible.
•
If the system was NOT deactivated voluntarily, this indicates a failure of the
ASR system: in this case you must contact an Authorised Service Centre
for the diagnosis and the reactivation of the system.
To ensure maximum safety of the vehicle it is advisable to keep the system active.
Deactivation may be necessary only in case of starting with very low grip surfaces
(mud, snow) on which the operation of the ASR could actually prevent the movement
of the vehicle.
N.B.
WHEN THE KEY IS TURNED TO "ON", THE ABS ICON FLASHES AT THE SAME
FREQUENCY AS THE ABS INDICATOR LAMP TO INDICATE THAT THE SYSTEM
DIAGNOSIS IS IN PROGRESS. IF NO ERRORS ARE FOUND, THE ASR ICON AND
THE ABS INDICATOR LAMP SWITCH OFF AT THE SAME TIME ONCE THE VE-
HICLE SPEED EXCEEDS 5 Km/h (3 mph).
IF THE ICON AND INDICATOR LAMP DO NOT FLASH WHEN THE ENGINE IS
STARTED, THE SYSTEM MAY NOT BE WORKING. CONTACT AN AUTHORISED
SERVICE CENTRE.
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