FUEL INJECTION SYSTEM
8-51
Fault code No. 39
Fault code No.
39
Item
Fuel 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
36
Actuation
Actuates fuel injector #1 five times at one-second intervals.
The “CHECK” indicator and “
” on the Yamaha diagnostic tool screen
comes on each time the fuel injector is actuated.
Procedure
Disconnect the fuel pump coupler, and then check that fuel injector #1 is
actuated five times by listening for the operating sound.
37
Actuation
Actuates fuel injector #2 five times at one-second intervals.
The “CHECK” indicator and “
” on the Yamaha diagnostic tool screen
comes on each time the fuel injector is actuated.
Procedure
Disconnect the fuel pump coupler, and then check that fuel injector #2 is
actuated five times by listening for the operating sound.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1
Identify the malfunctioning fuel
injector
Execute the diagnostic mode.
(Code Nos. 36, 37)
Identify the fuel injector that
does not produce an operating
sound.
Perform the following proce-
dures for the defective fuel injec-
tor.
2
Connection of fuel injector #1
and/or fuel injector #2 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
→
Con-
nect the coupler securely or re-
place the wire harness.
Execute the diagnostic mode.
(Code Nos. 36, 37)
No operating sound
→
Go to
item 3.
Operating sound
→
Go to item
7.
3
Defective fuel injector #1 and/or
fuel injector #2.
Measure the fuel injector resis-
tance.
Replace if out of specification.
Refer to “CHECKING THE
FUEL INJECTORS” on page
8-94.
Execute the diagnostic mode.
(Code Nos. 36, 37)
No operating sound
→
Go to
item 4.
Operating sound
→
Go to item
7.
4
Connection of ECU 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
→
Con-
nect the coupler securely or re-
place the wire harness.
Execute the diagnostic mode.
(Code Nos. 36, 37)
No operating sound
→
Go to
item 5.
Operating sound
→
Go to item
7.
Содержание YZF-R25
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Страница 25: ...BASIC SERVICE INFORMATION 1 16 ...
Страница 32: ...SPECIAL TOOLS 1 23 ...
Страница 49: ...TIGHTENING TORQUES 2 16 2 6 8 5 4 1 2 6 3 7 2 10 9 A ...
Страница 61: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 Oil pump right side view 1 2 1 Oil pump 2 Relief valve ...
Страница 66: ...COOLING SYSTEM DIAGRAMS 2 33 EAS20020 COOLING SYSTEM DIAGRAMS 1 2 3 1 5 4 4 ...
Страница 67: ...COOLING SYSTEM DIAGRAMS 2 34 1 Radiator 2 Radiator outlet hose 3 Water pump 4 Thermostat 5 Radiator inlet hose ...
Страница 99: ......
Страница 128: ...PERIODIC MAINTENANCE 3 29 ...
Страница 146: ...GENERAL CHASSIS 5 4 15 1 b b a a 2 ...
Страница 200: ...FRONT FORK 4 69 2 b a 1 ...
Страница 209: ...SWINGARM AND REAR SHOCK ABSORBER ASSEMBLY 4 78 2 1 1 1 a A B ...
Страница 214: ...CHAIN DRIVE 4 83 ...
Страница 227: ...ENGINE REMOVAL 5 10 T R Exhaust pipe protector bolt 8 Nm 0 8 m kgf 5 8 ft lbf LOCTITE 9 8 4 7 6 1 5 3 2 ...
Страница 256: ...CYLINDER AND PISTONS 5 39 1 ...
Страница 310: ...TRANSMISSION 5 93 ...
Страница 322: ...WATER PUMP 6 11 ...
Страница 336: ...THROTTLE BODIES 7 13 c 1 cylinder d 2 cylinder A Left B Right b a d c A B b 1 ...
Страница 337: ...THROTTLE BODIES 7 14 ...
Страница 338: ...AIR INDUCTION SYSTEM 7 15 EAS20071 AIR INDUCTION SYSTEM 1 2 3 4 5 1 2 ...
Страница 342: ...AIR INDUCTION SYSTEM 7 19 ...
Страница 345: ......
Страница 355: ...ELECTRIC STARTING SYSTEM 8 10 ...
Страница 359: ...CHARGING SYSTEM 8 14 ...
Страница 371: ...SIGNALING SYSTEM 8 26 ...
Страница 417: ...FUEL PUMP SYSTEM 8 72 ...
Страница 418: ...ELECTRICAL COMPONENTS 8 73 EAS20089 ELECTRICAL COMPONENTS 2 1 3 4 6 5 8 7 17 18 15 16 14 13 12 11 10 9 20 19 ...
Страница 420: ...ELECTRICAL COMPONENTS 8 75 2 3 4 5 12 11 10 9 8 7 1 6 ...
Страница 440: ...ELECTRICAL COMPONENTS 8 95 ...
Страница 451: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 10 ...
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