PIAGGIO 500 cc, Service Manual

Page: 137 / 239

Fuel injection
9 - 25
9
If the fuel injection indicator does not light or if it
lights up for 3 seconds, proceed with controls of
decoder and control unit feed circuits.
See page 9-27.
YES
NO
YES NO
Check the presence of battery positive tension on PIN
5/12 of the 12-way digital instrument
Reset or replace the harness
Check continuity of the digital instrument
between PIN:
6/12 (yellow-grey) - 4/8 (light blue) = 0
Ω
(continuity)
YES
Check continuity of the connection wire on the analogic
instrument
4/8 (light blue) - 4 (analogic instrument) = 0
Ω
(continuity)
Reset the harness
NO
Replace the digital
instrument
NO
YES
The LED is faulty. Replace the analogic instrument.