Atmospheric Pressure Sensor: Open Or Short Circuit Detected - Yamaha R1 Series 2015 Service Manual

Fault code No.
Item
3 Wire harness continuity.
4 Installed condition of intake air
temperature sensor.
Check for looseness or pinch-
ing.
5 Defective intake air tempera-
ture sensor.
6 Malfunction in ECU.
Fault code No. 23
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item Probable cause of
malfunction and check
22
Intake air temperature sensor: open or short circuit detected.
Open or short circuit
the wire harness.
Between intake air temperature
sensor coupler and ECU cou-
pler.
brown/white–brown/white
Between intake air temperature
sensor coupler and joint con-
nector.
black/blue–black/blue
Between joint connector and
ECU coupler.
black/blue–black/blue
Improperly installed sensor
Reinstall or replace the sensor.
Execute the diagnostic mode.
(Code No. 05)
When engine is cold:
Displayed temperature is close
to the ambient temperature.
The displayed temperature is
not close to the ambient temper-
ature. Check the intake air
temperature sensor.
Replace if defective.
Refer to "CHECKING THE
INTAKE AIR TEMPERATURE
SENSOR" on page 8-194.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-180.
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
8-68
FUEL INJECTION SYSTEM
Replace Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 4.
Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 5.
Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 6.
Confirmation of service com-
pletion