Yamaha 2016 Grizzly yfm700gplg Service Manual page 398

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of malfunc-
Item
tion and check
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 broken
terminals and locking condition
of the pins).
2 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
3 Wire harness continuity.
4 Installed condition of intake air
temperature sensor.
Check for looseness or pinch-
ing.
22
Intake air temperature sensor: open or short circuit detected.
Able to start engine
Able to drive vehicle
05
Displays the intake air temperature.
Compare the actually measured intake air temperature with the indicated
value.
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
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 cou-
pler.
black/blue–black/blue
Between joint coupler and ECU
coupler.
black/blue–black/blue
Improperly installed sensor →
Reinstall or replace the sensor.
9-43
FUEL INJECTION SYSTEM
Confirmation of service com-
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is displayed
→ Go to item 2.
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is displayed
→ Go to item 3.
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.
pletion
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