- Perform the check of the injector and control unit connectors.
- Verify continuity of the cable harness between the control unit connector and the injector connector
(control unit PIN 34 - injector PIN 2). If there is no continuity, restore the cable harness.
FUEL PUMP
ELECTRICAL ERRORS
Fuel pump relay P0230
- shorted to positive / shorted to negative / open circuit.
Error cause
Short circuit to positive:excessive voltage at PIN 22 of the control unit connector.
Short circuit to negative: null voltage at PIN 86 of the injection relay.
Open circuit: circuit interruption.
Troubleshooting
Short circuit to positive:
- Disconnect the injection relay, turn the key to ON and activate the relay through the diagnostics in-
strument.
- Verify the presence of voltage between relay connector PIN 86 and 85 toward the cabling.
- If no voltage is read, disconnect the control unit and verify insulation from battery positive of the relay
PIN 85 (or control unit PIN 22). If necessary, restore the cable harness.
Short circuit to negative:
- Disconnect the injection relay and the control unit.
- Verify ground insulation of the relay connector PIN 86 and 85 toward the cabling: if there is no insu-
lation, restore the cabling.
Open circuit:
- Disconnect the injection relay and the control unit.
- Verify continuity of the cabling between the relay and control unit: Relay PIN 85 - control unit PIN 22.
If necessary, restore the cable harness.
COIL
Function
Allows generation of the electrical discharge on
the spark plug, with an increase of voltage.
Pin-out:
1. Power from relay
2. Activation by control unit (control unit side PIN
1)
ELECTRICAL ERRORS
H.V. Coil
P0351 - shorted to positive / open circuit or shorted to negative.
Error cause
Vespa LX - S 125 3V ie 150 3V ie (2012)
Electrical system
ELE SYS - 107
Summary of Contents for S 2012
Page 1: ...SERVICE STATION MANUAL 677662 EN Vespa LX S 125 3V ie 150 3V ie 2012 ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 27: ...INDEX OF TOPICS TOOLING TOOL ...
Page 37: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 48: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 52: ...Troubleshooting Vespa LX S 125 3V ie 150 3V ie 2012 TROUBL 52 ...
Page 53: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 54: ... LX VERSION S VERSION Electrical system Vespa LX S 125 3V ie 150 3V ie 2012 ELE SYS 54 ...
Page 69: ... S VERSION Vespa LX S 125 3V ie 150 3V ie 2012 Electrical system ELE SYS 69 ...
Page 72: ... S VERSION Electrical system Vespa LX S 125 3V ie 150 3V ie 2012 ELE SYS 72 ...
Page 75: ... S VERSION Vespa LX S 125 3V ie 150 3V ie 2012 Electrical system ELE SYS 75 ...
Page 109: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 114: ...INDEX OF TOPICS ENGINE ENG ...
Page 174: ...INDEX OF TOPICS INJECTION INJEC ...
Page 206: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 226: ...Suspensions Vespa LX S 125 3V ie 150 3V ie 2012 SUSP 226 ...
Page 227: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 236: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 246: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 251: ...Tyres 11 V Vehicle 8 110 ...