Air Temperature Sensor - MOTO GUZZI GRISO 8V - 1200 Service Station Manual

GRISO 8V - 1200

Air temperature sensor

Function
It tells the control unit the intake air temperature in
order to calculate oxygen presence so as to opti-
mise the petrol quantity necessary for correct com-
bustion.
Operation / Operating principle
NTC type sensor (resistance sensor, inversely
variable with temperature).
Level in wiring diagram:Temperature sensors
Location:
•
sensor: on filter casing
•
connector: on the sensor
Electrical characteristics:
1 Resistance at -40 °C (-40 °F)
2 Resistance at 0 °C (32 °F)
3 Resistance at 10 °C (50 °F)
4 Resistance at 20 °C (68 °F)
5 Resistance at 30 °C (86 °F)
6 Resistance at 40 °C (104 °F)
7 Resistance at 90 °C (194 °F)
Pin-out:
•
PIN 1: Ground connection
•
PIN 2: 0-5 V signal
AXONE: FUEL INJECTION SYSTEM
AXONE: PARAMETERS
Air temperature
In case of failure, 25°C is set as temperature
AXONE: ELECTRICAL ERRORS
Air temperature sensor P0110 - Open circuit, shorted to positive / shorted to negative
Error cause
•
If the circuit is open, shorted to positive: excessive voltage has been detected at PIN 14 of
the BROWN connector.
•
If shorted to negative: voltage equal to zero has been detected at PIN 14 of the BROWN
connector
Troubleshooting
•
If the circuit is open, shorted to positive: check the sensor connector and the Marelli control
unit connector. If they are not OK, restore the cable harness; if OK, check the continuity of
A
IR TEMPERATURE SENSOR RESISTANCE
Specification
Electrical system
Desc./Quantity
100.950 kOhm
9.750 kOhm
5.970 kOhm
3.750 kOhm
2.420 kOhm
1.600 kOhm
0.280 kOhm
ELE SYS - 61