2015 YAMAHA WR 250F check engine

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Page 381 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-47
TIP
Disconnect the fuel pump coupler when this diagnostic tool is used.
Fault code No. 39
Item Injector: open or short circuit detected.
Fail-safe systemUnable to start engi

Page 382 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-48
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
Fault code No. 41
Item Lean angle sensor: open or short circuit detected.
Fail-safe sys

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YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-49
Fault code No. 43
ItemFuel system voltage: incorrect voltage supplied to the fuel in-
jector and fuel pump.
Fail-safe systemAble to start engine
Able to drive vehicle
Diagno

Page 384 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-50
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
Fault code No. 44
ItemEEPROM fault code number: an error is detected while read-
ing or

Page 385 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-51
Fault code No. 46
Item Charging voltage is abnormal.
Fail-safe systemAble/Unable to start engine
Able/Unable to drive vehicle
Diagnostic code No.—
Diagnostic tool display

Page 386 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-52
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay. F

Page 387 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-53
TIP
Before troubleshooting, disconnect the starter motor lead from the starter motor. 3 Wire harness continuity. Open or short circuit  Re-
place the wire harness.
light

Page 388 of 430

YAMAHA WR 250F 2015  Owners Manual FUEL INJECTION SYSTEM
9-54
TIP
Before troubleshooting, disconnect the starter motor lead from the starter motor. 4 Yamaha diagnostic tool mal-
function.Replace the Yamaha diag-
nostic tool.Push the st