•
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 check through Navigator if the temperature indicated is the same as the engine tem-
perature. 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 rear side of the filter box
•
connector: on the sensor
Electrical characteristics:
Resistance
•
at 0 °C (32 °F): 32.5 k
Ω
± 5%
•
at 25 °C (77 °F): 10.0 k
Ω
± 5%
Pin out:
1. 0-5 V signal
2. Ground connection
DIAGNOSIS INSTRUMENT:
PARAMETERS
Air temperature
Example value with key ON: 26 °C (78.8 °F)
In case of recovery, this value is set by the control
unit
Air temperature pre Recovery
Example value with key ON: -40 °C (-40.0 °F)
RSV4 Factory a-PRC
Electrical system
ELE SYS - 183
Summary of Contents for RSV4 Factory a-PRC 2009
Page 1: ...SERVICE STATION MANUAL 898952 RSV4 Factory a PRC ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 52: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 60: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 84: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 94: ... 7 REPLACE THE STARTER BUTTON COMPONENT END Troubleshooting RSV4 Factory a PRC TROUBL 94 ...
Page 95: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 249: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 270: ...INDEX OF TOPICS ENGINE ENG ...
Page 387: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 398: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 436: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 460: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 472: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 483: ...INDEX OF TOPICS BODYWORK BODYW ...