FUEL INJECTION SYSTEM
8-28
Fault code
50
Symptom
ECU: faulty ECU memory
Fail-safe system
Unable to start engine
Unable to drive vehicle
Diagnostic code No.
—
Diagnostic tool display
—
Procedure
—
Or-
der
Probable cause of malfunc-
tion and check
Maintenance job
Reinstatement method
1
Faulty ECU
Replace the ECU.
Turn “ON” the switch on the
FI diagnostic tool sub-lead.
Check that the fault code
number is not displayed.
Fault code
Waiting for connection
Symptom
No communication signal is received from the ECU.
Fail-safe system
Able to start engine (Unable when ECU is malfunctioning)
Able to drive vehicle (Unable when ECU is malfunctioning)
Diagnostic code No.
—
Diagnostic tool display
—
Procedure
—
Or-
der
Probable cause of malfunc-
tion and check
Maintenance job
Reinstatement method
1
Connection of Yamaha diag-
nostic tool 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.
Turn “ON” the switch on the
FI diagnostic tool sub-lead.
Fault code No. is not dis-
played
Repair is finished.
Fault code No. is displayed
Go to next order.
2
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.
Turn “ON” the switch on the
FI diagnostic tool sub-lead.
Fault code No. is not dis-
played
Repair is finished.
Fault code No. is displayed
Go to next order.
3
Wire harness continuity.
Open or short circuit
Re-
place the wire harness.
light green–light green
Turn “ON” the switch on the
FI diagnostic tool sub-lead.
Fault code No. is not dis-
played
Repair is finished.
Fault code No. is displayed
Go to next order.
Содержание YZ450FF 1SL-28199-11
Страница 6: ...EAS1SL5006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Страница 10: ......
Страница 38: ...CLEANING AND STORAGE 1 26...
Страница 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Страница 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31...
Страница 71: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 32 1 Camshaft 2 Oil pressure check bolt 3 Oil filter element 4 Oil pump...
Страница 72: ...CABLE ROUTING DIAGRAM 2 33 EAS1SL5066 CABLE ROUTING DIAGRAM...
Страница 74: ...CABLE ROUTING DIAGRAM 2 35...
Страница 76: ...CABLE ROUTING DIAGRAM 2 37...
Страница 78: ...CABLE ROUTING DIAGRAM 2 39...
Страница 80: ...CABLE ROUTING DIAGRAM 2 41...
Страница 82: ...CABLE ROUTING DIAGRAM 2 43...
Страница 122: ...ELECTRICAL SYSTEM 3 38...
Страница 135: ...REAR WHEEL 4 11 1 2...
Страница 157: ...HANDLEBAR 4 33 For installation reverse the removal proce dure Removing the handlebar Order Part name Q ty Remarks...
Страница 192: ...CHAIN DRIVE 4 68...
Страница 278: ...WATER PUMP 6 7...
Страница 290: ......
Страница 297: ...CHARGING SYSTEM 8 7 2 AC magneto 3 Rectifier regulator 4 Joint connector 5 Condenser...
Страница 299: ...CHARGING SYSTEM 8 9...
Страница 325: ...FUEL PUMP SYSTEM 8 35...
Страница 326: ...ELECTRICAL COMPONENTS 8 36 EAS1SL5334 ELECTRICAL COMPONENTS EAS1SL5335 9 10 1 2 3 4 5 6 7 8...
Страница 328: ...ELECTRICAL COMPONENTS 8 38 EAS1SL5336 CHECKING THE SWITCHES B Y P Sb 2 1...
Страница 329: ...ELECTRICAL COMPONENTS 8 39 1 Engine stop switch 2 Neutral switch...
Страница 344: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7...