FUEL INJECTION SYSTEM
9-31
ECU detects an abnormal signal from a sensor
If the ECU detects an abnormal signal from a sensor while the vehicle is being driven, the ECU illu-
minates the engine trouble warning light and provides the engine with alternate operating instructions
that are appropriate for the type of malfunction.
When an abnormal signal is received from a sensor, the ECU processes the specified values that are
programmed for each sensor in order to provide the engine with alternate operating instructions that
enable the engine to continue operating or stop operating, depending on the conditions.
EAS2GBB375
TROUBLESHOOTING METHOD
The engine operation is not normal and the engine trouble warning light comes on.
1. Check:
• Fault code number
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the Yamaha diagnostic tool. Refer to “YAMAHA DIAGNOSTIC TOOL” on page 9-32.
b. Check the fault code number displayed on the Yamaha diagnostic tool.
c. Identify the faulty system with the fault code number.
d. Identify the probable cause of the malfunction.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
2. Check and repair the probable cause of the malfunction.
3. Perform the reinstatement action for the fuel injection system. Refer to “Confirmation of service
completion” in the appropriate table in “TROUBLESHOOTING DETAILS” on page 9-35.
4. After pushing the engine stop switch, push the start switch to check whether the fault code number
is displayed.
TIP
If another fault code number is displayed, repeat steps (1) to (4) until no fault code number is dis-
played.
5. Erase the malfunction history in the diagnostic mode. Refer to “SENSOR OPERATION TABLE”
(Diagnostic code No.62).
TIP
Turning off the meter light will not erase the malfunction history.
The engine operation is not normal, but the engine trouble warning light does not come on.
1. Check the operation of the following sensors and actuators in the diagnostic mode. Refer to
“TROUBLESHOOTING DETAILS” on page 9-35.
If a malfunction is detected in the sensors or actuators, repair or replace all faulty parts.
If no malfunction is detected in the sensors and actuators, check and repair the inner parts of the
engine.
Fault code No.
No fault code No.
Check and repair. Refer to “TROUBLESHOOT-
Monitor the operation of the sensors and actua-
tors in the diagnostic mode. Refer to “TROU-
BLESHOOTING DETAILS” on page 9-35 and
“LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE
Check and repair.
01: Throttle position sensor signal (throttle angle)
30: Ignition coil
36: Injector
Содержание WR250F 2017
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 41: ...MULTI FUNCTION DISPLAY 1 27...
Страница 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25...
Страница 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Страница 81: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 1 Exhaust camshaft 2 Intake camshaft 3 Oil filter element 4 Oil pump...
Страница 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Страница 83: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Camshaft 2 Oil pressure check bolt 3 Oil filter element 4 Oil pump...
Страница 84: ...CABLE ROUTING DIAGRAM 2 31 EAS2GBB073 CABLE ROUTING DIAGRAM...
Страница 86: ...CABLE ROUTING DIAGRAM 2 33...
Страница 88: ...CABLE ROUTING DIAGRAM 2 35...
Страница 90: ...CABLE ROUTING DIAGRAM 2 37...
Страница 92: ...CABLE ROUTING DIAGRAM 2 39...
Страница 94: ...CABLE ROUTING DIAGRAM 2 41...
Страница 96: ...CABLE ROUTING DIAGRAM 2 43...
Страница 98: ...CABLE ROUTING DIAGRAM 2 45...
Страница 152: ...CHASSIS 4 9...
Страница 162: ...FRONT WHEEL 5 8 1 1...
Страница 226: ...CHAIN DRIVE 5 72...
Страница 248: ...CAMSHAFT 6 19 6 Install Cylinder head breather hose Spark plug Spark plug 13 Nm 1 3m kgf 9 4 ft lbf T R...
Страница 270: ...ELECTRIC STARTER 6 41...
Страница 294: ...OIL PUMP AND BALANCER GEAR 6 65 a 2 10 b 2 9 1 b 5 3 a 4 10 5 9 3 E c d 6 7 8 8 b 6...
Страница 300: ...GENERATOR AND STARTER CLUTCH 6 71 1 a 3 3 2 4...
Страница 351: ...CHARGING SYSTEM 9 15...
Страница 355: ...LIGHTING SYSTEM 9 19...
Страница 363: ...COOLING SYSTEM 9 27...
Страница 395: ...FUEL PUMP SYSTEM 9 59...
Страница 396: ...ELECTRICAL COMPONENTS 9 60 EAS2GBB381 ELECTRICAL COMPONENTS EAS2GBB382 9 10 11 1 3 2 4 5 6 7 8...
Страница 398: ...ELECTRICAL COMPONENTS 9 62 12 11 10 2 3 1 6 7 4 5 8 9...
Страница 400: ...ELECTRICAL COMPONENTS 9 64 EAS2GBB383 CHECKING THE SWITCHES 4 1 3 2 B B Sb B B B B B B B B...
Страница 401: ...ELECTRICAL COMPONENTS 9 65 1 Engine stop switch 2 Neutral switch 3 Clutch switch 4 Start switch...
Страница 418: ...ELECTRICAL COMPONENTS 9 82...
Страница 429: ......
Страница 430: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER...