APRILIA SCARABEO 500 - 2008, Service Station Manual

Page: 231 / 324

The control unit is fitted with a self-diagnosis sys-
tem connected to a warning light on the instrument
panel.
Failures are detected and restored by the diag-
nostic tester.
The MIU injection-ignition system carries out checks on the rpm indicator and the radiator cooling elec-
tric fan.
Precautions
1. Before fixing any part of the injection system, check to see if there are any registered faults. Check
for faults before disconnecting the battery.
2. The fuel supply system is pressurised at 300 kPa (3 BAR). Before disconnecting the fast-release
fitting of the fuel supply pipe, check that there are no naked flames. Do not smoke. Act with caution to
prevent spraying fuel in your eyes.
3. When fixing electric components, operate with battery connected only when strictly required.
4. When checking functions, make sure that the battery voltage is over 12V
5. Before trying to start-up, check to make sure there is at least 2 litres of fuel in the tank. Failure to
observe this procedure can damage the fuel pump.
6. If the scooter is not going to be used for a long time, refill the tank to a little over half its capacity. This
ensures that the pump will be covered by fuel.
7. When washing the vehicle, do not press the electric components and wiring.
8. When an ignition fault is detected, proceed to check the battery and the injection system connections
first.
9. Before disconnecting the MIU control unit connector, follow these steps respecting the order shown:
- Set the switch to «OFF»
- Disconnect the battery
Failure to observe this rule can damage the electronic control unit.
SCARABEO 500
Injection
INJEC - 231