FUEL INJECTION SYSTEM
8-24
TIP
Disconnect the fuel pump coupler when this diagnostic tool is used.
6
Faulty ECU
Execute the diagnostic mode.
(Code No. 30)
No spark
Replace the
ECU.
Fault code
39
Symptom
Injector: open or short circuit detected.
Fail-safe system
Unable to start engine
Unable to drive vehicle
Diagnostic code No.
36
Actuation
Actuates injector five times at one-second intervals.
“WARNING” on the Yamaha diagnostic tool blinks five times when
the injector is actuated.
Procedure
Check that injector is actuated five times by listening for the oper-
ating sound.
Or-
der
Probable cause of malfunc-
tion and check
Maintenance job
Reinstatement method
1
Connection of injector cou-
pler.
Check the locking condition
of the coupler.
Disconnect the coupler, and
check the pins (for bent or
broken terminals and locking
condition of the pins).
Improperly connected
Connect the coupler secure-
ly, or repair/replace the wire
harness.
After starting the engine, idle
this and wait about 5 sec-
onds.
Fault code No. is not dis-
played
Repair is finished.
Fault code No. is displayed
Go to next order.
2
Defective injector.
Check the injector.
After starting the engine, idle
this and wait about 5 sec-
onds.
Fault code No. is not dis-
played
Repair is finished.
Fault code No. is displayed
Go to next order.
3
Connection of wire harness
ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler, and
check the pins (for bent or
broken terminals and locking
condition of the pins).
Improperly connected
Connect the coupler secure-
ly, or repair/replace the wire
harness.
After starting the engine, idle
this and wait about 5 sec-
onds.
Fault code No. is not dis-
played
Repair is finished.
Fault code No. is displayed
Go to next order.
Fault code
33
Symptom
Ignition coil: open or short circuit detected in the primary lead
of the ignition coil.
Summary of Contents for YZ450F(E) 2014
Page 4: ......
Page 10: ......
Page 12: ......
Page 16: ...LOCATION OF IMPORTANT LABELS 1 2 EUR ...
Page 17: ...LOCATION OF IMPORTANT LABELS 1 3 AUS NZL ZAF ...
Page 42: ...CLEANING AND STORAGE 1 28 ...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Page 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Page 74: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 ...
Page 76: ...CABLE ROUTING DIAGRAM 2 33 EAS1SL1064 CABLE ROUTING DIAGRAM ...
Page 78: ...CABLE ROUTING DIAGRAM 2 35 ...
Page 80: ...CABLE ROUTING DIAGRAM 2 37 ...
Page 82: ...CABLE ROUTING DIAGRAM 2 39 ...
Page 84: ...CABLE ROUTING DIAGRAM 2 41 ...
Page 86: ...CABLE ROUTING DIAGRAM 2 43 ...
Page 192: ...CHAIN DRIVE 4 66 ...
Page 270: ...TRANSMISSION 5 75 ...
Page 278: ...WATER PUMP 6 7 ...
Page 290: ......
Page 299: ...CHARGING SYSTEM 8 9 ...
Page 325: ...FUEL PUMP SYSTEM 8 35 ...
Page 326: ...ELECTRICAL COMPONENTS 8 36 EAS1SL1332 ELECTRICAL COMPONENTS EAS1SL1333 9 10 1 2 3 4 5 6 7 8 ...
Page 328: ...ELECTRICAL COMPONENTS 8 38 CHECKING THE SWITCHES B Y P Sb 2 1 ...
Page 329: ...ELECTRICAL COMPONENTS 8 39 1 Engine stop switch 2 Neutral switch ...
Page 338: ...ELECTRICAL COMPONENTS 8 48 ...
Page 346: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7 ...
Page 357: ......
Page 358: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER ...