Yamaha MTN1000 2016 Service Manual page 504

Fault code No.
Item
C-4 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).
C-5 Wire harness continuity.
C-6 Defective clutch switch.
C-7 Malfunction in ECU.
P0500, P1500
Rear wheel sensor: no normal signals are received from the
A
rear wheel sensor.
B Neutral switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
Open or short circuit  Replace
the wire harness.
Between ECU coupler and joint
coupler.
black/yellow–black/yellow
blue/yellow–blue/yellow
Between joint coupler and relay
unit coupler.
black/yellow–black/yellow
blue/yellow–blue/yellow
Between clutch switch coupler
and joint coupler.
black/yellow–black/yellow
blue/yellow–blue/yellow
Check the clutch switch.
Replace if defective.
Refer to "CHECKING THE
SWITCHES" on page 8-191.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-194.
8-87
FUEL INJECTION SYSTEM
Execute the diagnostic mode.
(Code No. 21)
When the clutch lever is
released with the transmission
in gear and when the sidestand
is retracted: "OFF"
When the clutch lever is
squeezed with the transmission
in gear and when the sidestand
is retracted: "ON"
Correct indication Go to item
C-8.
Incorrect indication  Go to
item C-5.
Execute the diagnostic mode.
(Code No. 21)
When the clutch lever is
released with the transmission
in gear and when the sidestand
is retracted: "OFF"
When the clutch lever is
squeezed with the transmission
in gear and when the sidestand
is retracted: "ON"
Correct indication Go to item
C-8.
Incorrect indication  Go to
item C-6.
Execute the diagnostic mode.
(Code No. 21)
When the clutch lever is
released with the transmission
in gear and when the sidestand
is retracted: "OFF"
When the clutch lever is
squeezed with the transmission
in gear and when the sidestand
is retracted: "ON"
Correct indication Go to item
C-8.
Incorrect indication  Go to
item C-7.
Service is finished.