Yamaha Vmax VMX17C 2009 Service Manual page 471

• To increase the selected diagnostic code number, press the "SELECT" button. Press the "SELECT"
button for 1 second or longer to automatically increase the diagnostic code numbers.
6. Verify the operation of the sensor or actuator.
• Sensor operation
The data representing the operating conditions of the sensor appears on the odometer LCD.
• Actuator operation
Set the engine stop switch to "
TIP
If the engine stop switch is set to "
7. Turn the main switch to "OFF" to cancel the diagnostic mode.
Sensor operation table
Diag-
nostic
Item
code
No.
D:01 Throttle position sensor
signal 1
• Fully closed position
• Fully opened position
D:02 Atmospheric pressure
D:03 Pressure difference
(atmospheric pressure and
intake air pressure)
D:05 Intake air temperature
D:06 Coolant temperature
"D:01 D:70"
"D:70 D:01"
" to operate the actuator.
", set it to " ", and then set it to "
Meter display
15–16
97–102
Displays the atmospheric
pressure.
Displays the intake air pres-
sure.
Displays the intake air tem-
perature.
Displays the coolant temper-
ature.
8-38
FUEL INJECTION SYSTEM
" again.
Checking method
Check with throttle valves
fully closed.
Check with throttle valves
fully open.
Compare the actually mea-
sured atmospheric pres-
sure with the meter display
value.
Set the engine stop switch
to " ", and then push the
start switch " ". (If the dis-
play value changes, the
performance is OK.)
Compare the actually mea-
sured intake air tempera-
ture with the meter display
value.
Compare the actually mea-
sured coolant temperature
with the meter display val-
ue.