PIAGGIO 500 cc Service Manual page 136

Fuel injection
YES
Check that the LED lights up by earthing
PIN N°2 of the decoder (grey wire)
YES NO
Disconnect the connector between the
Replace the decoder and
vehicle system and the fuel injection system.
reprogramme
Earth the connector yellow-grey wire,
vehicle system side.
(connector with control button)
Check if the LED lights up.
YES
Carefully check the connector between the vehicle system and the fuel injection system.
Reset or replace the fuel injection harness.
NO
Check that there is continuity of the yellow-grey
wire misurando between the connecting link from
the fuel injection system
and the yellow-grey 12-way connector to the
digital instrument, vedi figura.
(connector with button)-yellow-grey (PIN 6/12
digital instrument) =
continuity
YES NO
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