- Check the continuity of the cable harness between the control unit connector and valve connector:
Control unit PIN 17 - valve PIN 1 and control unit PIN 9 - valve PIN 1. If there is no continuity, restore
the cable harness.
Short circuit to negative:
- Disconnect the control unit connector and the valve connector.
- Check the valve connector PIN 1 ground insulation (corresponding to control unit connector PIN 17).
If there is no insulation, restore the cable harness.
- With the valve connector disconnected and the control unit connector connected, turn ignition switch
to ON and activate the component using the diagnosis tool.
- Check the voltage (for 10 seconds) at the ends of the valve connector.
- If there is no voltage, check the continuity of the cable harness between control unit PIN 9 and valve
PIN 2 and restore it if necessary.
- If the above tests provided a positive result, the valve should be replaced.
High idling adjustment device voltage P0509
- shorted to positive.
Error cause
Short circuit to positive: excessive voltage to PIN 17 of the control unit connector.
Troubleshooting
Short circuit to positive:
- Disconnect the control unit connector and the valve connector.
- Verify that there is no short to battery positive on valve connector PIN 1 (corresponding to control unit
connector PIN 17); if there is a short circuit, restore the cable harness.
- With the valve connector disconnected and the control unit connector connected, turn ignition switch
to ON and activate the component using the diagnosis tool.
- Check the voltage (for 10 seconds) at the ends of the valve connector.
- If there is no voltage, check the continuity of the cable harness between control unit PIN 9 and valve
PIN 2 and restore it if necessary.
- If the above tests provided a positive result, the valve should be replaced.
Verificare che i tempi di apertura della valvola di controllo del minimo risultino inferiori al valore massimo,
un valore superiore può essere causato da imbrattamenti del sistema di aspirazione.
Characteristic
Tempo massimo apertura valvola controllo del minimo
20000us (20ms)
Vespa Primavera125 - 150 i.e. 3Valvole (2013)
Electrical system
ELE SYS - 113
Summary of Contents for 150
Page 1: ...SERVICE STATION MANUAL 1Q000118 EN Vespa Primavera125 150 i e 3Valvole 2013 ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 27: ...INDEX OF TOPICS TOOLING TOOL ...
Page 37: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 51: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 55: ...Vespa Primavera125 150 i e 3Valvole 2013 Troubleshooting TROUBL 55 ...
Page 56: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 117: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 123: ...INDEX OF TOPICS ENGINE ENG ...
Page 182: ...INDEX OF TOPICS INJECTION INJEC ...
Page 203: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 222: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 229: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 244: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 249: ...Transmission 10 53 124 136 Turn indicators 79 Tyres 11 V Vehicle 8 118 119 ...