APRILIA RSV4 RR 2017 Service Station Manual page 163

RSV4 RR-RF
Troubleshooting
•
Check the sensor connector and the ENGINE connector of the Marelli control unit.
NOTES
No error is detected if the sensor does not work correctly or the control unit connector or sensor terminals
are rusty: then use the diagnostic tool to check if the temperature indicated is the same as 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
indicates to the control unit the temperature of the
intake air, used to calculate the oxygen, to opti-
mise the required fuel quantity for the correct com-
bustion
Operation / Operating principle
NTC type sensor (resistance sensor, inversely
variable with temperature)
Level in the electrical circuit diagram:
Temperature sensors
Position:
•
sensor: on the rear side of the filter
housing
•
connector: on the sensor
Electrical specifications:Resistance
•
at 0 °C (32 °F): 32.5 kΩ ± 5%
•
at 25 °C (77 °F): 10.0 kΩ ± 5%
Pin out:
1. 0-5 V signal
2. Ground
DIAGNOSTIC TOOL:PARAMETERS
Air temperature
Example value with key ON: 26 °C (78.8 °F):
This is one of the values set by the ECU in the
event of recovery mode
Air temperature before Recovery
Example value with key ON: -40 °C (-40.0 °F):
Electrical system
ELE SYS - 163