PIAGGIO 500 cc Service Manual page 135

Fuel injection
4 Diagnostic code n°4
Code n°4 indicates a system in which the decoder is
blank and the control unit is programmed.
"ON" Led acceso
The key is recognized by the control unit.
0,5'' 0,5'' 0,5''
0,5''
2''
- Starting inhibited
- Indicator
2'' 2''
0,5'' 0,5'' 0,5''
Repeat the key programming procedure using the
original MASTER key.
Led spento
Diagnostics guide of anomalies not revealed through decoder self-diagnosis
Immobilizer LED fails to light up
Control whether the fuel injection indicator lights up for 5 seconds after setting to "ON"
YES
Check 7.5A fuse n°8 (undersaddle compartment)
NO
Check for any short circuits on the
9
digital instrument feed line.
Check that there are no short circuits on the
digital instrument itself.
Reset
NO
YES
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