VESPA GTS Super 125 i.e. Service Station Manual page 157

Vespa GTS Super 125 i.e.
6. Injection load relay
7. Fuel pump
8. HV coil
9. Fuel injector
10.Electric fan relay
Check the resistance at the injector ends: 14.5 ± 5% Ohm
Check that the injection load 15A fuse No. 3 works
properly.
Check that the 7.5A fuse No. 2 for live control unit
power works properly.
Check the efficiency of the injection load relay.
Check the resistance of the energising coil be-
tween pins 86 and 85: 40 to 80 Ohm
Apply a voltage of 12V to pins 86 and 85; make
sure that there is continuity between pins 30 and
87 of the relay.
Check the power supply line of the injection load
relay energising coil: after switching to "ON", make
sure there is battery voltage, for 2 seconds, be-
tween the Red-White cable and Black-Purple ca-
ble of the relay base. If there is not, check the
continuity of the Red-White cable between the
fuse box and the relay base and of the Black-Pur-
ple cable between the pin 22 of the control unit and
the relay base.
N.B.
CONTINUITY TESTS MUST BE CARRIED OUT WITH THE
COMPONENTS DISCONNECTED. (RELAYS, CONTROL
UNIT, FUSES ETC.).
Injection
INJEC - 157