MOTO GUZZI 1200 SPORT 4V Service Station Manual page 61

1200 SPORT 4V
error is displayed at the same time, this means that the grey cable common for both sensors
is shorted to positive.
•
If shorted to negative, check sensor correct resistance: if resistance = 0, replace the sensor;
if resistance is correct, it means that the cable has ground connection: restore the cable
harness
NOTES No error is detected if the sensor does not work correctly or the control unit connector
or sensor terminals are rusty: then check through Axone if the temperature indicated is plausible
in relation to the engine temperature. Check also that the sensor electrical characteristics are
observed: replace the sensor if not OK; if it is OK, check the sensor connector and the Marelli
control unit connector
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 the right side of the filter
casing, below the intake
•
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
Revente Interdite - Revendita Vietata - Resaling Forbiden - Wiederverkauf Verboten
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