Yamaha 2013 FJR1300AS Service Manual page 527

Fault code No.
Item
5 Defective air temperature
sensor.
6 Malfunction in ECU.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Probable cause of mal-
Item
function and check
1 Connection of atmospheric
pressure sensor coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
2 Connection of wire harness
ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
22
Air temperature sensor: open or short circuit detected.
Execute the diagnostic
mode. (Code No. 05)
When engine is cold:
Displayed temperature is
close to the ambient temper-
ature.
The displayed temperature is
not close to the ambient tem-
perature. → Check the air
temperature sensor.
Replace if defective.
Refer to "CHECKING THE
AIR TEMPERATURE SEN-
SOR" on page 8-281.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-264.
23
Atmospheric pressure sensor: open or short circuit detected.
Able to start engine
Able to drive vehicle
02
Displays the atmospheric pressure.
Compare the actually measured atmospheric pressure with the
meter display value.
Maintenance job
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
8-56
FUEL INJECTION SYSTEM
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 6.
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.
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 3.