Yamaha WR450FB 2012, Руководство по эксплуатации для владельца

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FUEL INJECTION SYSTEM
9-41
Fault code No. 22
Item Intake air temperature sensor: open or short circuit detected.
Fail-safe system Able to start engine
Able to drive vehicle
Diagnostic code No. d:05
Diagnostic tool display Displays the intake air temperature.
Procedure Compare the actually measured intake air temperature with the di-
agnostic tool display value.
Or-
der
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service
completion
1 Connection of intake air tem-
perature 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).
Improperly connected
o
Connect the coupler securely
or repair/replace the wire har-
ness.
Set the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is dis-
played
o
Go to next order.
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).
Improperly connected
o
Connect the coupler securely
or repair/replace the wire har-
ness.
Set the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is dis-
played
o
Go to next order.
3 Wire harness continuity. Open or short circuit
o
Re-
place the wire harness.
Between intake air tempera-
ture sensor coupler and ECU
coupler.
black/blue–black/blue
brown/white–brown/white
Set the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is dis-
played
o
Go to next order.
4 Installed condition of intake
air temperature sensor.
Check for looseness or
pinching.
Improperly installed sensor
o
Reinstall or replace the
sensor.
Set the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is dis-
played
o
Go to next order.
5 Defective intake air tempera-
ture sensor.
Execute the diagnostic mode.
(Code No. d:05)
Replace if defective.
Set the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is dis-
played
o
Go to next order.
6 Malfunction in ECU. Replace the ECU.