Yamaha 2016 Grizzly yfm700gplg Service Manual page 392

Fault code No.
Item
Indicated
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of intake air pres-
sure 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
pressure sensor.
Check for looseness or pinch-
ing.
13
Intake air pressure sensor: open or short circuit detected.
Displays the intake air pressure.
Set the engine stop switch to "
pushing the start switch "
mance is OK.)
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 pressure
sensor coupler and ECU cou-
pler.
pink–pink
Between intake air pressure
sensor coupler and joint cou-
pler.
blue–blue
black/blue–black/blue
Between joint coupler and ECU
coupler.
blue–blue
black/blue–black/blue
Improperly installed sensor →
Reinstall or replace the sensor.
9-37
FUEL INJECTION SYSTEM
", and then operate the throttle while
". (If the display value changes, the perfor-
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
"
"
"
"