Yamaha FZ09E 2014 Service Manual page 396

Fault code No.
Item
37 Actuation
Procedure
Actuation
38
Procedure
Item Probable cause of
malfunction and check
1 Identify the malfunctioning
injector.
2 Connection of injector #1, #2,
and/or injector #3 coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
3 Defective injector #1, #2,
and/or injector #3.
4 Connection of wire harness
ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
39
Injector: open or short circuit detected.
Actuates injector #2 five times at one-second intervals.
Illuminates the engine trouble warning light.
Check that injector #2 is actuated five times by listening for the
operating sound.
Actuates injector #3 five times at one-second intervals.
Illuminates the engine trouble warning light.
Check that injector #3 is actuated five times by listening for the
operating sound.
Maintenance job
Execute the diagnostic
mode. (Code Nos. 36, 37,
38)
Identify the injector that does
not produce an operating
sound.
Perform the following proce-
dures for the defective injec-
tor.
Refer to "CHECKING THE
FUEL INJECTORS" on page
8-111.
Improperly connected 
Connect the coupler securely
or replace the wire harness.
Measure the injector resis-
tance.
Replace if out of specifica-
tion.
Refer to "CHECKING THE
FUEL INJECTORS" on page
8-111.
Improperly connected 
Connect the coupler securely
or replace the wire harness.
8-61
FUEL INJECTION SYSTEM
Confirmation of service
completion
—
Execute the diagnostic
mode. (Code Nos. 36, 37,
38)
No operating sound  Go to
item 3.
Operating sound  Go to
item 7.
Execute the diagnostic
mode. (Code Nos. 36, 37,
38)
No operating sound  Go to
item 4.
Operating sound  Go to
item 7.
Execute the diagnostic
mode. (Code Nos. 36, 37,
38)
No operating sound  Go to
item 5.
Operating sound  Go to
item 7.