APRILIA DORSODURO FACTORY ABS 2011 Service Station Manual page 135

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
DORSODURO FACTORY ABS
same as the engine temperature. Check also that the sensor electrical characteristics are ob-
served: replace the sensor if not OK; if it is OK, check the sensor connector and the Marelli
control unit connector
Air temperature sensor
INTAKE 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 electrical circuit diagram:Temperature
sensors
Location:
•
on the vehicle: on filter box
•
on connector sensor: near the probes
Electrical characteristics:
•
Resistance at 0°: 32.5 kΩ +/- 5%
•
Resistance at 25°: 10.0 kΩ +/- 5%
Pin-out:
1. 0-5 V signal: PIN 1
2. Ground connection: PIN 2
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
NAVIGATOR: PARAMETERS
Air temperature
Example value: 26° C
In case of recovery, this value is set by the control unit.
Air Temp. before Recovery
Example value: -40° C
Value drawn from the signal read without taking into account any recovery: the value in the example
refers to an open circuit.
NAVIGATOR: ELECTRICAL ERRORS
email: info@motomatrix.co.uk
Electrical system
ELE SYS - 135