Diagnostic Codes; Diagnostic Code - 2 Flashes - PIAGGIO Liberty 125 Workshop Manual

Liberty 125 - 200 4tempi
Once the control unit has been programmed, the
control unit is inseparably matched with the MAS-
TER key transponder.
This matching allows programming further service
keys in case of loss, replacement, etc. Each new
time new data is programmed the previously stor-
ed one is deleted.
If a service key setting is lost, it is essential to
carefully check the efficiency of the high voltage
system:
Shielded cap resistance ~ 5000 Ω.
In any case, it is advisable to use resistive spark
plugs as shown in the figure.

Diagnostic codes

The flash indicating the switching to "ON" (0.7-sec
flash) can be followed by a phase of programmed
failure warnings.
That is, the LED is off for 2 seconds, and then di-
agnosis codes are transmitted with 0.5-sec flash-
es.
After the failure code indication, a steadily on LED
signals that ignition is disabled; see the table:
2-FLASH CODE
Example with programmed electronic control unit,
no transponder and/or aerial malfunction
Ignition disabled-Vehicle immobilised
3-FLASH CODE
Example with programmed electronic control unit,
aerial working properly and unknown transponder
code.
Ignition disabled-Vehicle immobilised

Diagnostic code - 2 flashes

When the 2-flash code is detected, carry out the following checks:
- Check if the failure continues even after changing key (including the MASTER key). If the failure
persists with any key, disconnect the aerial connector from the electronic control unit and check the
aerial continuity with the multimeter.
Electrical system
ELE SYS - 51