![APRILIA MSS Mana GT ABS Service Station Manual Download Page 96](http://html1.mh-extra.com/html/aprilia/mss-mana-gt-abs/mss-mana-gt-abs_service-station-manual_2956367096.webp)
•
If the circuit is open, shorted to positive: excessive voltage has been detected at PIN 5 of
connector A (BROWN). If shorted to negative: voltage equal to zero has been detected. In
both cases, recovery function.
Troubleshooting
•
If the circuit is open, shorted to positive: check the sensor connector and the Marelli control
unit connector. If they are OK, check sensor continuity: replace the sensor if not OK; if it is
OK, check the continuity between PIN 5 of the connector A (BROWN) and sensor PIN 1:
restore cable harness if there is no continuity; if it is OK, reconnect the control unit connector
and, with key set to key ON, check the continuity between the sensor connector PIN 2 and
the vehicle ground connection: if it is OK, it means that the error cause is that the cable is
shorted to positive and it is necessary to restore the cable harness between ENGINE PIN
5 and sensor PIN 1; if there is not continuity with the ground lead, check the sensor connector
and the Marelli control unit connector; if they are not OK, restore the cable harness; if they
are OK, check continuity between PIN 20 of the connector A (BROWN) and PIN 2 of the
sensor connector: restore the cable harness if there is not continuity. If there is, it means
that the control unit does not supply the ground connection and therefore should be replaced.
•
If shorted to negative, check sensor correct resistance: if resistance is null, replace the sen-
sor; 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 Navigator if the temperature indicated is the
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 wiring diagram:
Temperature sensors
Location:
Electrical system
MSS Mana GT ABS
ELE SYS - 96
Summary of Contents for MSS Mana GT ABS
Page 1: ...SERVICE STATION MANUAL 894171 MSS Mana GT ABS ...
Page 5: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 26: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 38: ...Stores code Description 020881Y Panel graphics Special tools MSS Mana GT ABS S TOOLS 38 ...
Page 39: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 46: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 57: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 149: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 164: ...Engine from vehicle MSS Mana GT ABS ENG VE 164 ...
Page 165: ...INDEX OF TOPICS ENGINE ENG ...
Page 230: ... Undo the two screws and remove the oil pump cover Engine MSS Mana GT ABS ENG 230 ...
Page 266: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 268: ...Power supply MSS Mana GT ABS P SUPP 268 ...
Page 269: ...MSS Mana GT ABS Power supply P SUPP 269 ...
Page 270: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 314: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 320: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 347: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 362: ...INDEX OF TOPICS BODYWORK BODYW ...