PIAGGIO 500 cc - Fuel Injection - Diagnostic Code n°3 Troubleshooting

Fuel injection
9 - 22
Disconnect the aerial connector and check
continuity (8 ± 2 Ω).
Check the correct positioning of the aerial
Replace the decoder and check that the code is
present
Replace aerial
Position correctly
YES
YES
NO
NO
YES
3 Diagnostic code n°3
Code n°3 indicates a system in which the decoder
perceives a transponder not foreseen in the program-
ming.
- Starting inhibited
- Fuel injection indicator fixed light on
Check whether the code persists if the master key
is used.
Check that component connections are correct
(keys-decoder-control unit)
Replace the decoder and control unit.
Reprogramme the components.
Repeat the programming of
all the service keys.
Reset
NO
NO
YES
YES
0,7’’
“ON”
0,5’’
2’’
2’’
0,5’’
0,5’’
0,5’’
0,5’’
LED off
LED on