Yes Point 12; Yes Go To 3 - Gilera Nexus 500 Workshop Manual

Injection
2 - Enable the function with continuous power sup-
ply on and engine off. The control unit controls the
fuel pump continuously and at the same time starts
the injector opening. The injector openings are re-
peated for a few seconds.

YES go to 3

3 - Acoustically check the injector openings and
wait for the tester results
YES go to 4 NO go to 5
4 - 5 injector openings detected. The injection test-
er displays "test successful".
YES go to 7
5 - No injector openings detected. The injection
tester displays "test failed".
YES go to 9 NO go to 6
6 - No injector openings detected. The injection
tester displays "test successful".
YES go to 8
7 - The injector control circuit is efficient. Perform
the injector hydraulic check.
8 - The injector control circuit is efficient. Repeat
the acoustic check and perform the injector hy-
draulic check for safety reasons.
9 - Select the menu on the "ERRORS" function.
Check whether the injector failure message only is
displayed.
YES go to 14 NO go to 10
10 - There are also fault messages for: pump relay
YES go to 13 NO go to 11
11 - There is also a fault message for the HV coil.

YES point 12

INJEC - 50
Nexus 500