VESPA GTS 250 I.E. Workshop Manual page 77

Vespa GTS 250 I.E.
•
there is power to the control unit as
specified below:
Remove the connector support 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 6-26
and terminal 6-frame earth (fixed power supply). If
there is no voltage check that fuse 4 and its cable
are in working order.
With the key switch set to ON:
• there is battery voltage between terminals 5-26
and terminal 5-frame earth (fixed power supply). If
there is no voltage, check the key switch contacts,
that fuse 2 and its cable are in working order.
•
There is continuity between terminals
12-18 and 12-19 with the emergency
cut-out switch in the RUN position. If
there is no continuity, check the con-
tacts of the latter.
If no faults are found, replace the control unit.
Electrical system
ELE SYS - 27