Yamaha R1 Series 2015, Service Manual

Page: 565 / 704

FUEL INJECTION SYSTEM
8-84
B-1 Locate the malfunction. Execute the diagnostic mode.
(Code No. 07)
Rotate the rear wheel by hand
and check that the indicated
value increases.
Value does not increase
o
Go
to item A-2 for the rear wheel
sensor.
Execute the diagnostic mode.
(Code No. 21)
When the transmission is in
neutral: “ON”
When the transmission is in
gear with the clutch lever
released: “OFF”
Incorrect indication
o
Go to
item B-2.
When the transmission is in
gear with the clutch lever
squeezed and the sidestand is
retracted: “ON”
Incorrect indication
o
Go to
item C-2 for the clutch switch.
B-2 Connection of neutral switch
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.
Execute the diagnostic mode.
(Code No. 21)
When the transmission is in
neutral: “ON”
When the transmission is in
gear with the clutch lever
released: “OFF”
Correct indication
o
Go to item
B-9.
Incorrect indication
o
Go to
item B-3.
B-3 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.
Execute the diagnostic mode.
(Code No. 21)
When the transmission is in
neutral: “ON”
When the transmission is in
gear with the clutch lever
released: “OFF”
Correct indication
o
Go to item
B-9.
Incorrect indication
o
Go to
item B-4.
B-4 Wire harness continuity. Open or short circuit
o
Replace
the wire harness.
Between relay unit coupler and
neutral switch coupler.
sky blue–sky blue
Between relay unit coupler and
ECU coupler.
black/yellow–black/yellow
Execute the diagnostic mode.
(Code No. 21)
When the transmission is in
neutral: “ON”
When the transmission is in
gear with the clutch lever
released: “OFF”
Correct indication
o
Go to item
B-9.
Incorrect indication
o
Go to
item B-5.
Fault code No. 42
Item
A Rear wheel sensor: no normal signals are received from the rear
wheel sensor.
B Neutral switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.