PIAGGIO Beverly 500 i.e. Workshop Manual page 196

Injection
12 - Check and restore the earth insulation of the control unit line 19 and of the pump remote control
switch line 85.
YES go to 14
13 - Install the special tool between control unit and the injection system.
YES go to 15
Specific tooling
020481Y Control unit interface wiring
14 - Delete the code and check from the beginning.
15 - Set the switch to "ON" with switch to "RUN"
and side stand raised. Wait more than two sec-
onds and check the following conditions:
19 - 23 = battery voltage
YES go to 16 NO go to 17
16 - Replace the control unit.
17 - Check the presence of voltage (+ batt.) be-
tween pin 86 of the pump remote control switch
and pin 23 of the control unit. Fix the wiring, if re-
quired. Check the relay coil continuity.
85 - 86 = 100 ± 50Ω
18 - Check the efficiency of the 10 A fuse no. 2
YES go to 20 NO go to 19
INJEC - 196
Beverly 500 i.e.