Yamaha 2014 MT-07 Service Manual page 470

Fault code No.
Item
C-5 Wire harness continuity.
C-6 Defective relay unit.
C-7 Defective clutch switch.
C-8 Malfunction in ECU.
42
Rear wheel sensor: no normal signals are received from the
A
rear wheel sensor.
B Gear position switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.
Open or short circuit → Replace
the wire harness.
Between clutch switch coupler
and left handlebar switch cou-
pler.
black/red–black/red
black/yellow–black/yellow
Between left handlebar switch
coupler and joint coupler.
black/red–black/red
black/yellow–black/yellow
Between joint coupler and relay
unit coupler.
black/red–black/red
black/yellow–black/yellow
Between joint coupler and ECU
coupler.
black/red–black/red
black/yellow–black/yellow
Check the relay unit.
Replace if defective.
Refer to "CHECKING THE RE-
LAY UNIT (DIODE)" on page
8-133.
Check the clutch switch.
Replace if defective.
Refer to "CHECKING THE
SWITCHES" on page 8-123.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-128.
8-65
FUEL INJECTION SYSTEM
Execute the diagnostic mode.
(Code No. 21)
When the clutch lever is re-
leased 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-9 and delete the fault code.
Incorrect indication → Go to
item C-6.
Execute the diagnostic mode.
(Code No. 21)
When the clutch lever is re-
leased 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-9 and delete the fault code.
Incorrect indication → Go to
item C-7.
Execute the diagnostic mode.
(Code No. 21)
When the clutch lever is re-
leased 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-9 and delete the fault code.
Incorrect indication → Go to
item C-8.