FUEL INJECTION SYSTEM
8-18
3
Connection of sub wire har-
ness 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 sub-
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.
4
Wire harness continuity.
Open or short circuit
Re-
place the wire harness.
Between throttle position
sensor coupler and ECU cou-
pler.
yellow–yellow
blue–blue
black/blue–black/blue
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
Mounted condition of throttle
position sensor.
Check for looseness or
pinching.
Check the mounted condition
for correctness.
Improperly mounted sensor
Remount or replace the
sensor.
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.
6
Applied voltage of throttle po-
sition sensor lead.
Check the applied voltage.
(black/blue–blue)
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.
Location of discon-
nected lead
Output
voltage
Disconnected
ground lead
5 V
Disconnected out-
put lead
0 V
Disconnected
power supply lead
0 V
7
Defective throttle position
sensor.
Execute the diagnostic mode.
(Code No. 1)
When the throttle is fully
closed, 11–14 displays.
When the throttle is fully
opened, 109–116 displays.
Incorrect display range
Replace the throttle position
sensor.
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.
8
Faulty ECU
Replace the ECU.
Fault code
15
Symptom
Throttle position sensor: open or short circuit detected.
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...