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Nexus 500
STANDARD: 5 V
TERMINALS: 11 - 22
CONDITIONS: Opening the throttle gradually
STANDARD: Volt= Progressive increase
1
2
3
4
The throttle valve position sensor is not removable
and is installed on the throttle body.
This sensor receives a 5-V power supply from the
control unit and transmit a gradually increasing
voltage to the same, with an increase of the throttle
valve opening. The control unit converts this volt-
age at an angular position of the valve.
The engine rpm and the throttle valve position are
the two basic signals for the engine management.
A failure of this circuit causes the switching on of
the injection telltale light and the tripping of the
safeties. In these conditions, the engine works,
CIRCUIT LAYOUT
Specification
Electronic control unit
Valve position sensor
Air temperature sensor
Fluid temperature sensor
Injection
Desc./Quantity
INJEC - 271
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