VESPA GTS Super 300 ie 2008 Service Station Manual page 114

Electrical system
- Check the continuity of the cable harness between the sensor connector and control unit connector:
PIN 11 of the control unit - PIN 1 of the sensor and PIN 12 of the control unit - PIN 2 of the sensor. If
necessary, restore the cable harness.
- If the cable harness is intact and the error persists, proceed with the following checks.
Short circuit to negative:
- Disconnect the sensor connector and the control unit connector.
- Check the insulation from the ground of PIN 1 of the sensor connector. If there is no insulation, restore
the cable harness.
- Check the insulation from the ground of PIN 2 of the sensor connector. If there is no insulation, restore
the cable harness.
- If PIN 1 and 2 are insulated from ground and the error persists, it means that there is a probable defect
in the control unit.
ELE SYS - 114
Vespa GTS Super 300 ie (2008)