Yamaha R1 Series 2015, Service Manual

Page: 539 / 704

FUEL INJECTION SYSTEM
8-58
TIP
If fault code numbers “13” and “14” are both indicated, take the actions specified for fault code number
“13” first.
3 Wire harness continuity. Open or short circuit
o
Replace
the wire harness.
Between intake air pressure
sensor coupler and ECU cou-
pler.
pink/white–pink/white
blue–blue
Between intake air pressure
sensor coupler and joint con-
nector.
black/blue–black/blue
Between joint connector and
ECU coupler.
black/blue–black/blue
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 4.
4 Installed condition of intake air
pressure sensor.
Check for looseness or pinch-
ing.
Improperly installed sensor
o
Reinstall or replace the sensor.
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 5.
5 Defective intake air pressure
sensor.
Execute the diagnostic mode.
(Code No. 03)
When engine is stopped:
Atmospheric pressure at the
current altitude and weather
conditions is indicated.
At sea level: Approx. 101 kPa
(757.6 mmHg, 29.8 inHg)
1000 m (3300 ft) above sea
level: Approx. 90 kPa (675.1
mmHg, 26.6 inHg)
2000 m (6700 ft) above sea
level: Approx. 80 kPa (600.0
mmHg, 23.6 inHg)
3000 m (9800 ft) above sea
level: Approx. 70 kPa (525.0
mmHg, 20.7 inHg)
When engine is cranking: Make
sure that the indication value
changes.
The value does not change
when engine is cranking.
o
Check the intake air pressure
sensor.
Replace if defective.
Refer to “CHECKING THE
INTAKE AIR PRESSURE SEN-
SOR” on page 8-194.
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 6.
6 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (Engine Control Unit)” on
page 8-180.
Fault code No. 13
Item Intake air pressure sensor: open or short circuit detected.