Benelli Tornado Tre Novicento 903, Workshop Manual, Page: 288 / 336

UK
288
MF9_UK
T T
T T
L I M I T E D E D I T I O N
Instruction
Check and note the data on the display of
the diagnostic instrument (see Axone
instruction manual) if available.
Check and note the data on the display of
the diagnostic instrument (see Axone
instruction manual).
Make sure that the sensor is inserted
correctly and the connector fixed well.
Disconnect the ECM and proceed to
location test 1.
Possible cause
Position sensor system of the
throttle body group damaged
Entrance voltage of the
sensor
low
Entrance voltage of the
sensor high
Fault Code
P0120
P0122
P0123
POSITION SENSOR OF THE THROTTLE BODY GROUP – MC 1000 ECM
Instruction
Disconnect the sensor and proceed to test
2
Rectify the fault, proceed to test 5
Proceed to test 3
Locate and repair the cable fault, proceed
to test 5
Proceed to test 4
Locate and repair the cable fault, proceed
to test 5
Change the position sensor of the throttle
body group, proceed to test 5.
Locate and repair the cable fault, proceed
to test 5
Activity carried out – terminate the test
Contact the Benelli assistance
Result
OK
Fault
OK
Short circuit
OK
Open circuit
OK
Short circuit
OK
The fault persists
Test
1 - Check the integrity of the terminal
and the cable:
- ECM pin 1/B3
- ECM pin 1/E3
- ECM pin 1/E4
2 - Check whether the cable is short
circuited:
- ECM pin 1/E3 to the chassis
3 - Check the continuity of the cable:
- ECM pin 1/E4 at sensor pin 3
- ECM pin 1/E3 at sensor pin 2
- ECM pin 1/B3 at sensor pin 1
4 - Check whether the cable is short
circuited:
- ECM pin 1/E3 at ECM pin 1/B3
- ECM pin 1/E3 at pin ECM 1/E4
5 - Reconnect the cabling, cancel the
fault code and activate the engine
to check the elimination of the fault.
LOCATION TEST