VESPA GTS Super 300 ie 2008 Service Station Manual page 64

Electrical system
11. Diagnosis connector - Remove the helmet
compartment to reach it.
15. H.V. coil- Remove the battery to reach it; to
remove the coil, first remove the footrest and undo
the two screws indicated.
18-30-38 Horn - Remote control switches Re-
move front central cover to reach it.
ELE SYS - 64
Vespa GTS Super 300 ie (2008)