VESPA GTS Super 300 ie 2008 Service Station Manual page 93

Vespa GTS Super 300 ie (2008)
Electrical system
7. Electronic control unit
8. Engine stop switch
9. Stop buttons
10. Fuse No. 6
11. Starter button
12. Starter motor
WARNING
ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS
DISCONNECTED.
1) Check fuses No. 1,2,5 and 6.
2) Check key switch contacts.
3) Check the contacts of the stop buttons and the starter button.
4) With the ignition key set to «ON», the brake pulled and the starter button pressed, check if there is
voltage between the Orange-White cable of the start-up remote control switch and the ground connec-
tion. If there is not, check the cable harnesses.
5) Check the starter relay.
6) Check that the Red cable between the battery and the starter relay is not interrupted. Also check
continuity between the latter and the starter motor.
7) Check the starter motor ground connection.
8) Check that the Orange-Blue cable between the start-up remote control switch and the control unit
(pin 9) is not interrupted.
9) Check the contacts of the engine stop switch and that the Green-Black cable connecting this switch
to the control unit (pin 4) is not interrupted.
10) Check the engine stop switch ground connection.
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