Diagnostic Instrument - VESPA GTS Super 300 ie 2008 Service Station Manual

Electrical system
ANTITHEFT DEVICE PRE-INSTALLATION
CONNECTOR
1. Ground lead (Black)
2. Right arrows (White-Blue)
3. Left arrows (Pink)
4. Battery-powered (Red-Blue)
5. Live supply (White)
6. Helmet compartment button pre-installation
(Blue-Black)
7. Not connected
8. Not connected
IMMOBILIZER ANTENNA CONNECTOR
1. Live supply (Red-White)
2. Ground lead (Black)
3. Electronic control unit (Orange-White)

Diagnostic instrument

STARTER COMMAND
Function
Commands engine starting through the injection control unit.
Operation / Operating principle
The starter button, the brake switches, the starter relay and the injection control unit through PIN 10
are involved.
ELECTRICAL ERRORS
Starter command P0170 - shorted to positive.
Error cause
Shorted to positive: excessive voltage at PIN 10 of the control unit connector.
Troubleshooting
Short circuit to positive:
- This malfunction is detected with a brake activated and the starter button pressed.
- If the battery voltage does not drop (thanks to the absorption of the starter command relay excitation
coil) the control unit understands that PIN 10 is shorted to battery.
- Restore the cabling (if the short is in the cabling) or the relay (if the short is in the relay).
ELE SYS - 108
Vespa GTS Super 300 ie (2008)