PIAGGIO MP3 500 i.e. SPORT Service Station Manual page 271

MP3 500 i.e. SPORT Business_LT_ ABS-ASR_EU_USA (2015)
Injection
Check the presence of fixed voltage between the
Red-Green cable of the solenoid base and ground.
If there is none, check the continuity of the Red-
Green cable between the fuse box (No. 6 10A) and
the remote control base.
WARNING
ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH
THE CORRESPONDING CONNECTORS DISCONNECTED.
After switching to «ON», check that there is battery
voltage, for about 2 seconds, between the Black-
Green cable of the pump connector and the
ground lead with the pump connector disconnec-
ted. Otherwise, check the continuity of the Black-
Green cable between the pump connector and the
relay base.
Check the efficiency of the ground line of the fuel
pump by measuring the continuity between the
pump connector black cable, system side, and the
ground.
If, when switching to «ON», the pump continues to
turn after 2 seconds of activation, check, with the
control unit disconnected and the injection load re-
lay disconnected, that the Black-Purple cable (pin
10 on the control unit) is insulated from the ground.
WARNING
ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH
THE CORRESPONDING CONNECTORS DISCONNECTED.
Specific tooling
020331Y Digital multimeter
INJEC - 271