Yamaha 2013 FJR1300AS Service Manual page 523

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
03
Procedure
Meter display
02
Procedure
Probable cause of mal-
Item
function and check
1 Defective intake air pressure
sensor.
20
Intake air pressure sensor or atmospheric pressure sensor:
when the main switch is turned to "ON", the intake air pres-
sure sensor voltage and atmospheric pressure sensor voltage
differ greatly.
Able to start engine
Able to drive vehicle
03, 02
Displays the intake air pressure.
Shift the transmission into gear, extend the sidestand, and then
operate the throttle while pushing the " " side of the start/engine
stop switch. (If the display value changes, the performance is OK.)
Displays the atmospheric pressure.
Compare the actually measured atmospheric pressure with the
meter display value.
Maintenance job
Execute the diagnostic
mode. (Code No. 03)
When engine is stopped:
Atmospheric pressure at the
current altitude and weather
conditions is indicated.
0 m above sea level: Approx.
101 kPa (757.6 mmHg, 29.8
inHg)
3000 m (9800 ft) above sea
level: Approx. 70 kPa (525.0
mmHg, 20.7 inHg)
Displayed value is incorrect
→ Check the intake air pres-
sure sensor.
Replace if defective.
Refer to "CHECKING THE
INTAKE AIR PRESSURE
SENSOR" on page 8-280.
8-52
FUEL INJECTION SYSTEM
Confirmation of service
completion
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.