APRILIA SCARABEO 500 - 2008, Service Station Manual

Page: 258 / 324

With the control unit-side connector disconnected
and the coolant temperature sensor connector
connected, check the resistance values between
pin 9 and the ground connection match the engine
temperature.
20° = 2500 ± 100 Ÿ
80° = 308 ± 6
Ÿ
With the control unit-side connector disconnected
and the coolant temperature sensor connector al-
so disconnected, check the insulation between the
Orange and the ground connection.
With the control unit-side connector disconnected
and the coolant temperature sensor connector al-
so disconnected, check the continuity between pin
9 of the interface wiring and the Orange cable of
the connector.
Specific tooling
020481Y Adaptor cable harness
020331Y Digital multimeter
Zeroing the throttle
Throttle valve position signal reset (TPS reset)
The MIU control unit is supplied with throttle valve position sensor and is pre-calibrated.
Pre-calibration entails regulating the minimum opening of the throttle valve to obtain a specific air flow
under pre-set reference conditions.
Pre-calibration ensures optimal air flow for the control of the idle speed.
This regulation must not be tampered with in any way whatsoever.
The injection system will complete the management of the idling through the Stepper and the variation
of the ignition advance.
Injection
SCARABEO 500
INJEC - 258