Benelli Tornado Tre Novicento 903, Workshop Manual, Page: 286 / 336

UK
286
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.
Make sure that the relative injector
connectors are correctly inserted.
Disconnect the ECM and proceed to
location test 1.
Disconnect the relative injectors and
proceed to location test 5.
Possible cause
Injection plant damaged– 2/
1/3
Failure to ignite indicates
open circuit
Flooding indicates short
circuit
Open or short circuit –
injectors 2/1/3
Short circuit at the battery
positive pole (+) - injectors 2/
1/3
Fault code
P0201/02/03
P1201/02/03
P1205/06/07
INJECTORS – MC 1000 ECM
Instruction
Proceed to test 2
Repair the fault, proceed to test 6
Disconnect the relative injector and proceed
to test 3
Proceed to test 4
Disconnect the relative injector and proceed
to test 5
Proceed to test 7
Locate and repair the cable fault, proceed
to test 7
Proceed to test 6
Locate and repair the cable fault and
proceed to test 7
Result
Ok
Fault
from15.5 a 16.3
Open circuit
Short circuit
Ok
Short circuit
Ok
Open circuit
Test
1 - Check the integrity of the terminal
and the cable:
- ECM 1/G3 pin
- ECM 1/H3 pin
- ECM 1/H2 pin
2 - Check the value of the resistance:
- ECM pin 1/H4 at ECM pin 1/H3
(injector 2)
- ECM pin 1/H4 at ECm pin 1/H2
(injector 1)
- ECM pin 1/H4 at ECM pin 1/G3
(injector 3)
3 - Check whether the cable is short
circuited:
- ECM Pin 1/H3 at the chassis
- ECM Pin 1/H2 at the chassis
- ECM Pin 1/G3 at the chassis
4 - Check the continuity of the cable:
- ECM Pin 1/H4 at the injection relay
- ECM Pin 1/H3 at connector pin 2
(injector 2)
- ECM Pin 1/H2 at connector pin 2
(injector 1)
- ECM Pin 1/G3 at connector pin 2
(injector 3)
LOCATION TEST