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FUEL INJECTION SYSTEM
8-37
37
Engine speed is high when
the engine is idling.
• Stuck fast idle plunger (in fully open posi-
tion).
• Malfunction in ECU (engine control unit).
01
41
Lean angle sensor: open or
short circuit detected.
• Open or short circuit in wire harness.
• Defective lean angle sensor.
• Malfunction in ECU (engine control unit).
08
43
The ECU (engine control
unit) is unable to monitor
the battery voltage (an
open or short circuit in the
line to the ECU).
• Open circuit in wire harness.
• Malfunction in ECU (engine control unit).
• Defective fuel injection system relay.
50
44
Error is detected while
reading or writing on EE-
PROM (CO adjustment val-
ue).
• Malfunction in ECU (engine control unit).
(The CO adjustment value is not properly
written on or read from the internal memo-
ry).
60
46
Power supply to the fuel in-
jection system is not nor-
mal.
Malfunction in the charging system. Refer to
“CHARGING SYSTEM” on page 8-11.
—
50
Faulty ECU (engine control
unit) memory. (When this
malfunction is detected in
the ECU, the fault code
number might not appear
on the meter.)
• Malfunction in ECU (engine control unit).
(The program and data are not properly
written on or read from the internal memo-
ry.)
—
Er-1
No signals are received
from the ECU (engine con-
trol unit).
• Open or short circuit in communication line.
• Malfunction in meter.
• Malfunction in ECU (engine control unit).
—
Er-2
No signals are received
from the ECU (engine con-
trol unit) within the speci-
fied duration.
• Open or short circuit in communication line.
• Malfunction in meter.
• Malfunction in ECU (engine control unit).
—
Er-3
Data from the ECU (engine
control unit) cannot be re-
ceived correctly.
• Open or short circuit in communication line.
• Malfunction in meter.
• Malfunction in ECU (engine control unit).
—
Er-4
Non-registered data has
been received from the
meter.
• Open or short circuit in communication line.
• Malfunction in meter.
• Malfunction in ECU (engine control unit).
—
Fault
code
No.
Symptom
Probable cause of malfunction
Diagnostic
code No.
Summary of Contents for 2009 XP500Y TMAX
Page 1: ...2009 SERVICE MANUAL XP500Y LIT 11616 22 08 4B5 28197 10 ...
Page 6: ......
Page 8: ......
Page 26: ...SPECIAL TOOLS 1 17 ...
Page 47: ...TIGHTENING TORQUES 2 20 Cylinder head tightening sequence ...
Page 56: ...LUBRICATION SYSTEM DIAGRAMS 2 29 1 2 3 4 4 ...
Page 57: ...LUBRICATION SYSTEM DIAGRAMS 2 30 1 Secondary shaft 2 Drive axle 3 Clutch 4 Crankshaft ...
Page 60: ...COOLING SYSTEM DIAGRAMS 2 33 1 2 3 4 5 6 7 8 9 10 11 12 ...
Page 64: ...CABLE ROUTING 2 37 A B A C D E F G H I J K L 1 2 1 2 3 3 4 5 6 6 7 A A A A A A A A ...
Page 78: ...CABLE ROUTING 2 51 ...
Page 81: ......
Page 115: ......
Page 172: ...FRONT FORK 4 57 2 3 ...
Page 186: ...SWINGARM AND TRANSMISSION CHAIN DRIVE 4 71 ...
Page 270: ...TRANSMISSION 5 81 ...
Page 294: ...THROTTLE BODY 7 9 ...
Page 297: ......
Page 309: ...CHARGING SYSTEM 8 12 2 AC magneto 3 Rectifier regulator 14 Battery 15 Main fuse ...
Page 311: ...CHARGING SYSTEM 8 14 ...
Page 321: ...SIGNALING SYSTEM 8 24 ...
Page 325: ...COOLING SYSTEM 8 28 ...
Page 353: ...FUEL PUMP SYSTEM 8 56 ...
Page 356: ...ELECTRICAL COMPONENTS 8 59 2 1 3 4 5 6 10 8 9 11 7 ...
Page 376: ...ELECTRICAL COMPONENTS 8 79 ...
Page 383: ......
Page 384: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...