PIAGGIO Beverly 500 i.e. Workshop Manual page 186

Injection
2 - Check the control unit base and continuous
power supplies.
YES go to 4
3 - Restore
4 - Place the special tool between control unit and
system. Keep the control unit disconnected.
YES go to 5
Specific tooling
020481Y Control unit interface wiring
5 - Check the following conditions:
PIN 1 diagnostic socket - PIN 10 control unit =
continuity
PIN 2 diagnostic socket - PIN 23 control unit =
continuity with earth
PIN 3 diagnostic socket - PIN 9 control unit = con-
tinuity
10 - 23 = insulation (>1 MΩ)
9 - 23 = insulation (>1 MΩ)
YES go to 6 NO go to 7
6 - The circuit is in good working order. Check the control unit.
7 - Fix the interruption or short-circuit.
INJEC - 186
Beverly 500 i.e.