FUEL INJECTION SYSTEM
8-46
D:13
Meter display
Throttle position sensor signal 2
• 15–16 (fully closed position)
• 97–102 (fully opened position)
Checking method
• Check with throttle valve fully closed.
• Check with throttle valve fully opened.
Probable cause of malfunction
Check or maintenance job
1
Installed condition of throttle position
sensor.
• Check for looseness or pinching.
• Check that the sensor is installed in the speci-
fied position.
2
Connections
• Throttle position sensor coupler
• Wire harness ECU coupler
• Check the coupler for any pins that may be
pulled out.
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect
the coupler securely.
3
Open or short circuit in wire harness.
• Repair or replace if there is an open or short
circuit.
• Between throttle position sensor coupler and
ECU coupler.
(black/brown–black/brown)
(white–white)
(black–black)
(blue/green–blue/green)
4
Defective throttle position sensor.
• Execute the diagnostic mode. (Code No. D:01
and/or D:13)
• Replace if defective.
Refer to “CHECKING THE THROTTLE POSI-
TION SENSOR” on page 8-137.
Reinstatement method
Turning the main switch to “ON”.
Fault code No.
17
Item
EXUP servo motor circuit: open or short circuit detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No.
D:53
Actuator operation
Actuates the EXUP servo motor (turns to open side and to closed
side).
Illuminates the engine trouble warning light.
Checking method
Check the operating sound.
Probable cause of malfunction
Check or maintenance job
1
Connections
• EXUP servo motor coupler
• Wire harness ECU coupler
• Check the coupler for any pins that may be
pulled out.
• Check the locking condition of the couplers.
• If there is a malfunction, repair it and connect
the coupler securely.
Fault code No.
15
Item
Throttle position sensor: open or short circuit detected.
Summary of Contents for 2009 VMX17YC
Page 1: ...2009 SERVICE MANUAL VMX17Y C LIT 11616 22 64 2S3 28197 10 ...
Page 6: ......
Page 8: ......
Page 52: ...SPECIAL TOOLS 1 43 ...
Page 85: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 32 ...
Page 90: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 1 4 5 2 3 ...
Page 92: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 A 2 A 4 3 2 1 ...
Page 94: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 A A 1 A A 7 6 8 5 4 3 2 ...
Page 98: ...COOLING SYSTEM DIAGRAMS 2 45 6 1 2 3 4 5 2 3 4 5 7 6 8 9 A B C F E D ...
Page 102: ...CABLE ROUTING 2 49 A B B A B B A B C D E F F H I 1 2 3 4 4 5 6 7 8 G 6 ...
Page 106: ...CABLE ROUTING 2 53 A B 7 1 2 3 4 5 6 12 11 13 F E D 10 C G 14 9 8 ...
Page 110: ...CABLE ROUTING 2 57 A A A B D E F H 1 2 2 3 4 3 5 6 7 8 9 C 4 5 G ...
Page 114: ...CABLE ROUTING 2 61 A A A A A B C 1 2 3 4 5 6 7 8 9 10 11 ...
Page 120: ...CABLE ROUTING 2 67 B A C C B A C C A B C D E F G H I J 1 2 1 2 5 1 2 3 5 3 4 5 ...
Page 124: ...CABLE ROUTING 2 71 ...
Page 127: ......
Page 270: ...SHAFT DRIVE 4 105 ...
Page 316: ...GENERATOR AND STARTER CLUTCH 5 43 a 1 ...
Page 364: ...CONNECTING RODS AND PISTONS 5 91 a ...
Page 390: ...MIDDLE GEAR 5 117 ...
Page 406: ...WATER PUMP 6 15 ...
Page 425: ...THROTTLE BODIES 7 18 1 ...
Page 426: ...AIR INDUCTION SYSTEM 7 19 EAS27040 AIR INDUCTION SYSTEM A A 6 5 4 5 6 1 4 3 3 2 1 A B C D ...
Page 433: ......
Page 439: ...IGNITION SYSTEM 8 6 ...
Page 445: ...ELECTRIC STARTING SYSTEM 8 12 ...
Page 447: ...CHARGING SYSTEM 8 14 1 AC magneto 2 Rectifier regulator 6 Main fuse 8 Battery 9 Frame ground ...
Page 449: ...CHARGING SYSTEM 8 16 ...
Page 461: ...SIGNALING SYSTEM 8 28 ...
Page 465: ...COOLING SYSTEM 8 32 ...
Page 501: ...FUEL INJECTION SYSTEM 8 68 ...
Page 505: ...FUEL PUMP SYSTEM 8 72 ...
Page 509: ...ABS ANTI LOCK BRAKE SYSTEM 8 76 ...
Page 549: ...ABS ANTI LOCK BRAKE SYSTEM 8 116 ...
Page 552: ...ELECTRICAL COMPONENTS 8 119 3 4 5 6 2 1 7 8 9 10 11 12 13 14 15 16 17 18 19 ...
Page 574: ...ELECTRICAL COMPONENTS 8 141 ...
Page 581: ......
Page 582: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...