Yamaha R1 Series 2015, Руководство по обслуживанию

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FUEL INJECTION SYSTEM
8-54
EAS30508
TROUBLESHOOTING DETAILS (ECU)
This section describes the measures per fault code number displayed on the meter. Check and service
the items or components that are the probable cause of the malfunction following the order given.
After the check and service of the malfunctioning part have been completed, reset the meter display
according to the reinstatement method.
Fault code No.:
Fault code number displayed on the meter when the engine failed to work normally.
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to “DIAGNOSTIC
MODE (ECU)” on page 8-51.
Fault code No. 8
Fault code No. 8
Item Gear position sensor: open or short circuit detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No.
—
Meter display
—
Procedure
—
Item Probable cause of
malfunction and check
Maintenance job Confirmation of service com-
pletion
1 Connection of throttle position
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).
Improperly connected
o
Con-
nect the coupler securely or
replace the wire harness.
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 2.
2 Connection of wire harness
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).
Improperly connected
o
Con-
nect the coupler securely or
replace the wire harness.
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 3.
3 Wire harness continuity. Open or short circuit
o
Replace
the wire harness.
Between gear position sensor
coupler and ECU coupler.
green–green
white–white
blue/red–blue/red
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 4.
4 Installed condition of gear posi-
tion sensor.
Check for looseness or pinch-
ing.
Improperly installed sensor
o
Reinstall or adjust the sensor.
Refer to “INSTALLING THE
GEAR POSITION SENSOR” on
page 5-70.
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 5.
5 Display of each gear position on
the meter
Make sure that the position of
each gear is correctly displayed
on the meter.
If incorrect
o
Replace the gear
position sensor.
Turn the main switch to “ON”.
Fault code number is not dis-
played
o
Service is finished.
Fault code number is displayed
o
Go to item 6.