Yamaha YZ450F Owner's Service Manual page 197

SENSOR OPERATION TABLE
Diagnos-
tic code Item
No.
D01 Throttle angle
D02 Atmosphere
D03 Intake air pressure
D05 Intake air temperature Display
D06 Coolant temperature
D08 Lean angle sensor
D30 Ignition coil
Actuation or
Checking method
display
Displays the throttle angle.
Check with throttle fully closed.
Display
Check with throttle fully open.
Displays the atmospheric pres-
sure.
• Measure the atmospheric pres-
sure.
Display
Displays the intake air pressure.
• Check the intake manifold pres-
sure.
• Check that the intake air pres-
sure changes while the engine is
being cranked.
Display
Displays the intake air tempera-
ture.
• Check the temperature in the in-
take manifold.
Displays the coolant temperature.
• Check the coolant temperature.
Display
Displays the lean angle sensor
output voltage.
Display
Remove the ECU and incline it 45°
or more.
Check that power is supplied to
the ignition coil.
Actuation • Check that a spark is generated.
• Illuminates the engine trouble
warning light.
7-11
FUEL INJECTION SYSTEM
Actuation or LCD standard display
0–125°
When throttle is fully closed:15–19°
When throttle is fully
opened:95–101 °
0–126 kPa
Displays the atmospheric pressure
according to the elevation and
weather.
Example
0 m above sea level: Approx: 101
kPa
3000 m above sea level:Approx: 70
kPa
0–126 kPa
While the engine is stopped: Dis-
plays the atmospheric pressure ac-
cording to the elevation and
weather.
Example
0 m above sea level: Approx: 101
kPa
3000 m above sea level:Approx: 70
kPa
While the engine is being cranked:
Displays the intake air pressure.
-20–100°C
Cold engine: Displayed tempera-
ture is close to the ambient temper-
ature.
Warm engine: Displayed tempera-
ture is approximately 20 °C higher
than the ambient temperature.
-20–150°C
Cold engine: Displayed tempera-
ture is close to the ambient temper-
ature.
Warm engine: Displayed tempera-
ture is the current coolant tempera-
ture.
0–5.0 V
1.0 V: Upright
4.0 V: Overturned
Actuates the ignition coil for five
times every second.
The "WARNING" LED on the FI di-
agnostic tool comes on each time
the fuel injector is actuated.
values