VESPA GTS Super 300 ie 2008 Service Station Manual page 86

Electrical system
The duration of the flash depends on the program-
ming of the electronic control unit.
If the LED is off regardless of the position of the
ignition switch and/or the instrument panel is not
initiated, check if:
•
there is battery voltage
•
that fuse 1 and fuse 5 are in good con-
ditions.
•
there is power to the control unit as
specified below:
Remove the connector mounting bracket shown in
the photograph and disconnect the connector from
the control unit. Check the following conditions:
With the key switch set to OFF:
• there is battery voltage between terminals 7-9 and terminal 9-chassis ground (fixed power supply). If
there is no voltage check that fuse 2 and its cable are in working order.
With the key switch in the ON position:
• there is battery voltage between terminals 6-7 and terminal 6-chassis ground (fixed power supply). If
there is no voltage, check the key switch contacts, that fuse 5 and its cable are in working order.
•
There is continuity between terminals 4-19 and 4-33 with the emergency cut-out switch in
the RUN position. If there is no continuity, check the contacts of the latter.
If no faults are found, replace the control unit.
After removing the leg shield back plate, remove
the electrical connection from the aerial as shown
in the picture.
ELE SYS - 86
Vespa GTS Super 300 ie (2008)