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SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
EAM20174
SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
EAM30497
SELF-DIAGNOSTIC FUNCTION TABLE (FOR FUEL INJECTION SYSTEM)
Fault code
Crankshaft position sensor: no normal signals are received from the crank-
12
shaft position sensor.
13
Intake air pressure sensor: open or short circuit detected.
Intake air pressure sensor: hose system malfunction (clogged or detached
14
hose).
15
Throttle position sensor: open or short circuit detected.
16
Throttle position sensor: stuck throttle position sensor is detected.
21
Coolant temperature sensor: open or short circuit detected.
22
Intake air temperature sensor: open or short circuit detected.
30
The vehicle has overturned.
Ignition coil: open or short circuit detected in the primary lead of the ignition
33
coil.
39
Injector: open or short circuit detected.
41
ECU: built-in lean angle sensor malfunction.
43
Fuel system voltage: incorrect voltage supplied to the main relay and CCU.
EEPROM fault code number: an error is detected while reading or writing on
44
EEPROM.
46
Vehicle system power supply: normal voltage is not supplied to the ECU.
50
ECU: faulty ECU memory.
70
Engine forcibly stops when the vehicle is left idling for a long period of time.
EAM30425
DIAGNOSTIC CODE: SENSOR OPERATION TABLE
Diag-
nostic
Item
code
No.
01
Throttle angle
• Fully closed position
• Fully opened position
03
Pressure of suction pipe
05
Intake air temperature
Item
Display
Displays the throttle angle.
• 11–14
• 86–92
Displays the intake air pressure.
• Check the change of the
intake pressure valve when
the starter switch is pushed.
Displays the intake air tempera-
ture.
9-12
Page
8-23
8-24
8-26
8-27
8-28
8-29
8-31
8-32
8-33
8-35
8-36
8-36
8-38
8-39
8-40
8-40
Procedure
• Check with throttle fully
closed.
• Check with throttle fully
opened.
The atmospheric pressure is
displayed on the Yamaha
diagnostic tool.
Compare the actually mea-
sured intake air temperature
with the Yamaha diagnostic
tool display value.
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Troubleshooting
