Yamaha FJR13AG, Service Manual

Page: 549 / 784

FUEL INJECTION SYSTEM
8-72
Fault code No. P0112, P0113
TIP
Perform this procedure when the engine is cold.
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 lev-
el: Approx. 90 kPa (675.1
mmHg, 26.6 inHg)
2000 m (6700 ft) above sea lev-
el: Approx. 80 kPa (600.0
mmHg, 23.6 inHg)
3000 m (9800 ft) above sea lev-
el: 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.
→
Re-
place the intake air pressure
sensor.
Crank the engine, and then
check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 7 and finish the service.
Condition is “Detected”
→
Go to
item 6.
6 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-250. Service is finished.
7 Delete the fault code and check
that the engine trouble warning
light goes off. Confirm that the fault code has
a condition of “Recovered” us-
ing the Yamaha diagnostic tool,
and then delete the fault code.
Fault code No. P0107, P0108
Item
[P0107] Intake air pressure sensor: ground short circuit detected.
[P0108] Intake air pressure sensor: open or power short circuit de-
tected.
Fault code No. P0112, P0113
Item
[P0112] Air temperature sensor: ground short circuit detected.
[P0113] Air temperature sensor: open or power short circuit detect-
ed.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 05
Tool display Displays the air temperature.
Procedure
Compare the actually measured air temperature with the tool display val-
ue.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion