FUEL INJECTION SYSTEM
8-31
Fault code
Er-4
Symptom
Registered data cannot be received from the Yamaha diagnos-
tic tool.
Fail-safe system
Able to start engine
Able to drive vehicle
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.
4
Yamaha diagnostic tool mal-
function
Replace the Yamaha diag-
nostic tool.
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.
5
Faulty ECU
Replace the ECU.
Содержание YZ250F 2016
Страница 4: ......
Страница 10: ......
Страница 12: ......
Страница 16: ...LOCATION OF IMPORTANT LABELS 1 2 EUR ...
Страница 17: ...LOCATION OF IMPORTANT LABELS 1 3 AUS NZL ZAF ...
Страница 40: ...CLEANING AND STORAGE 1 26 ...
Страница 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22 ...
Страница 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Страница 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Страница 72: ...CABLE ROUTING DIAGRAM 2 31 EAS1SM9062 CABLE ROUTING DIAGRAM ...
Страница 74: ...CABLE ROUTING DIAGRAM 2 33 ...
Страница 76: ...CABLE ROUTING DIAGRAM 2 35 ...
Страница 78: ...CABLE ROUTING DIAGRAM 2 37 ...
Страница 80: ...CABLE ROUTING DIAGRAM 2 39 ...
Страница 82: ...CABLE ROUTING DIAGRAM 2 41 ...
Страница 122: ...ELECTRICAL SYSTEM 3 38 ...
Страница 190: ...CHAIN DRIVE 4 66 ...
Страница 286: ......
Страница 293: ...CHARGING SYSTEM 8 7 2 AC magneto 3 Rectifier regulator 4 Joint connector 5 Condenser ...
Страница 295: ...CHARGING SYSTEM 8 9 ...
Страница 321: ...FUEL PUMP SYSTEM 8 35 ...
Страница 322: ...ELECTRICAL COMPONENTS 8 36 EAS1SM9331 ELECTRICAL COMPONENTS EAS1SM9332 9 10 1 2 3 4 5 6 7 8 ...
Страница 324: ...ELECTRICAL COMPONENTS 8 38 EAS1SM9333 CHECKING THE SWITCHES Y W P Sb 1 2 P Sb Y W ...
Страница 325: ...ELECTRICAL COMPONENTS 8 39 1 Engine stop switch 2 Neutral switch ...
Страница 334: ...ELECTRICAL COMPONENTS 8 48 ...
Страница 342: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7 ...
Страница 353: ......
Страница 354: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER ...