Yamaha FX10X 2008 Service Manual page 287

Diagnostic mode table
Switch the meter display from the regular mode to the diagnostic mode. To switch the display, refer to "DIAG-
NOSTIC MODE".
NOTE:
• Check the intake air temperature and coolant temperature as close as possible to the intake air temperature
sensor and the coolant temperature sensor respectively.
• If it is not possible to check the intake air temperature, use the ambient temperature as reference.
Diagnostic
Item
code No.
Throttle angle
01
Intake air pressure sensor
1 (atmospheric pressure
03 and intake air pressure)
Intake air pressure sensor
2 (atmospheric pressure
04 and intake air pressure)
Intake air temperature
05
Coolant temperature
06
Snowmobile speed pulse
07
Fuel system voltage (bat-
09
tery voltage)
Throttle switch
24
Grip warmer operation
26
Thumb warmer operation
27
Cylinder-#1 ignition coil
30
Cylinder-#2 ignition coil
31
Cylinder-#3 ignition coil
32
Injector #1
36
FUEL INJECTION SYSTEM
Description of action
Displays the throttle angle.
• Check with throttle fully closed.
• Check with throttle fully open.
Displays the intake air pressure for cylinders #1, #2, and
#3.
Displays the intake air pressure for cylinder #1.
Displays the intake air temperature.
• Check the temperature in the air filter case.
Displays the coolant temperature.
• Check the temperature of the coolant.
Displays the cumulative number of snowmobile pulses
that are generated when the track is spun.
Displays the fuel system voltage (battery voltage).
Displays that the switch is on or off.
If the grip warmer side of the grip/thumb warmer adjust-
ment switch is pushed, actuates the grip warmer and
displays the self-diagnosis warning indicator for 120 sec-
onds.
If the grip warmer side of the grip/thumb warmer adjust-
ment switch is pushed, actuates the thumb warmer and
displays the self-diagnosis warning indicator for 120 sec-
onds.
If the grip warmer side of the grip/thumb warmer adjust-
ment switch is pushed, actuates the cylinder-#1 ignition
coil and displays the self-diagnosis warning indicator
(five times at one-second intervals).
If the grip warmer side of the grip/thumb warmer adjust-
ment switch is pushed, actuates the cylinder-#2 ignition
coil and displays the self-diagnosis warning indicator
(five times at one-second intervals).
If the grip warmer side of the grip/thumb warmer adjust-
ment switch is pushed, actuates the cylinder-#3 ignition
coil and displays the self-diagnosis warning indicator
(five times at one-second intervals).
If the grip warmer side of the grip/thumb warmer adjust-
ment switch is pushed, actuates injector #1 and displays
the self-diagnosis warning indicator (five times at one-
second intervals).
7-11
FI
Data displayed on meter
(reference value)
0 ~ 125 degrees
• Fully closed position (15 ~ 18)
• Fully open position (94 ~ 100)
• Not cranking: atmospheric
pressure
• Cranking: intake air pressure
decreases to less than the
atmospheric pressure.
• Not cranking: atmospheric
pressure
• Cranking: intake air pressure
decreases to less than the
atmospheric pressure.
Compare it to the value dis-
played on the meter. (Minimum
displayed value: –30 [°C])
Compare it to the value dis-
played on the meter. (Minimum
displayed value: –30 [°C])
(0 ~ 999; resets to 0 after 999)
OK if the numbers appear on
the meter.
0 ~ 18.7 V
Normally, approximately 12.0 V
Throttle open: on
Throttle closed: off
—
—
After pushing the switch, check
that a spark is produced five
times.
After pushing the switch, check
that a spark is produced five
times.
After pushing the switch, check
that a spark is produced five
times.
After pushing the switch, check
that the injector operates five
times by listening to its operat-
ing sound.