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Electrical system
resistance. If resistance is over 2.5 kOhm, it means the red cable is shorted to positive and
the cable harness should be restored
•
shorted to negative: disconnect the sensor connector and check the ground insulation of the
red cable (from throttle sensor connector or control unit connector): if there is continuity to
ground, restore the cable harness; if it is ground insulated, the resistance between PIN A
and PIN C is below 1.3 kOhm; therefore, the throttle body should be replaced
NAVIGATOR: ADJUSTMENT
Throttle position autodetection: It allows the control unit to detect the closed throttle position; just
press the Enter key.
Self-adjustable parameters reset: Lambda probe self-adaptability parameters reset: operation to be
carried out after the throttle body is cleaned or in the case a new engine, a new lambda probe or a new
injector is fitted, or the correct operation of the injection system or the valves is restored.
NAVIGATOR: RESET PROCEDURE
Once the throttle body or the injection control unit is replaced, it is necessary to connect to the diagnosis
instrument selecting FUEL INJECTION and carry out the operation: Throttle position autodetection.
Engine temperature sensor
Function
tells the engine temperature to the control unit so
as to optimise its operation.
Operation / Operating principle
NTC type sensor (resistance sensor, inversely
variable with temperature).
Level in electrical circuit diagram:Temperature
sensors
Location:
•
Sensor: within the engine "V"
•
Connector: on the sensor
Electrical specifications:
1
Resistance at -40 °C (-40 °F)
2
Resistance at -30 °C (-22 °F)
3
Resistance at -20 °C (-4 °F)
4
Resistance at -10 °C (14 °F)
5
Resistance at 0 °C (32 °F)
6
Resistance at +10 °C (50 °F)
7
Resistance at +20 °C (68 °F)
8
Resistance at +30 °C (86 °F)
9
Resistance at +40 °C (104 °F)
10
Resistance at +50 °C (122 °F)
ELE SYS - 64
E
NGINE TEMPERATURE SENSOR RESISTANCE
Specification
STELVIO 4V - 1200
Desc./Quantity
100.950 kOhm
53.100 kOhm
29.120 kOhm
16.600 kOhm
9.750 kOhm
5.970 kOhm
3.750 kOhm
2.420 kOhm
1.600 kOhm
1.080 kOhm
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