VESPA GTS Super 300 ie 2008 Service Station Manual page 213

Vespa GTS Super 300 ie (2008)
8. H.V. coil.
9. Fuel injector
10.Electric fan solenoid
11.15A fuse No. 3
12.Electric fan motor
Check that the 7.5A fuse No. 5 works properly
With the key switch set to ON, check if there is +12
V battery voltage between the RED - WHITE cable
of the electric fan remote control and the ground
connection.
Check if the RED - WHITE cable between the fuse
box (under the saddle) and the electric fan remote
control base is not interrupted
Using a diagnosis hand-held computer, carry out
an active diagnosis for the "ELECTRIC FAN".
Check if there is battery voltage at pins 85 - 86 of
the electric fan remote control
Check if the BLUE - YELLOW cable between the control unit pin 8 and the electric fan remote control
base is not interrupted
Injection
INJEC - 213