Yamaha R1 Series 2015, Руководство по обслуживанию

Страница: 558 / 704

FUEL INJECTION SYSTEM
8-77
Fault code No. 39
Fault code No. 39
Item Primary injector: open or short circuit detected.
Fail-safe system Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
Diagnostic code No. 36, 37, 38, 39
36 Actuation Actuates primary injector #1 five times at one-second intervals.
Illuminates the engine trouble and system warning light.
Procedure Check that primary injector #1 is actuated five times by listening for the
operating sound.
37 Actuation Actuates primary injector #2 five times at one-second intervals.
Illuminates the engine trouble and system warning light.
Procedure Check that primary injector #2 is actuated five times by listening for the
operating sound.
38 Actuation Actuates primary injector #3 five times at one-second intervals.
Illuminates the engine trouble and system warning light.
Procedure Check that primary injector #3 is actuated five times by listening for the
operating sound.
39 Actuation Actuates primary injector #4 five times at one-second intervals.
Illuminates the engine trouble and system warning light.
Procedure Check that primary injector #4 is actuated five times by listening for the
operating sound.
Item Probable cause of
malfunction and check
Maintenance job Confirmation of service com-
pletion
1 Identify the malfunctioning pri-
mary injector.
Execute the diagnostic mode.
(Code No. 36, 37, 38, 39)
Identify the primary injector that
does not produce an operating
sound.
Perform the following proce-
dures for the defective primary
injector.
Refer to “CHECKING THE
FUEL INJECTORS” on page
8-196.
2 Connection of primary injector
coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
Improperly connected
o
Con-
nect the coupler securely or
replace the wire harness.
Execute the diagnostic mode.
(Code No. 36, 37, 38, 39)
No operating sound
o
Go to
item 3.
Operating sound
o
Go to item
8.
3 Defective primary injector. Measure the primary injector
resistance.
Replace if out of specification.
Refer to “CHECKING THE
FUEL INJECTORS” on page
8-196.
Execute the diagnostic mode.
(Code No. 36, 37, 38, 39)
No operating sound
o
Go to
item 4.
Operating sound
o
Go to item
8.