Yamaha R1 Series 2015 Service Manual page 565

Fault code No.
Item
B-1 Locate the malfunction.
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).
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).
B-4 Wire harness continuity.
42
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.
Execute the diagnostic mode.
(Code No. 07)
Rotate the rear wheel by hand
and check that the indicated
value increases.
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"
When the transmission is in
gear with the clutch lever
squeezed and the sidestand is
retracted: "ON"
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
Open or short circuit
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
8-84
FUEL INJECTION SYSTEM
Value does not increase
to item A-2 for the rear wheel
sensor.
Incorrect indication
item B-2.
Incorrect indication
item C-2 for the clutch switch.
Con- 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
B-9.
Incorrect indication
item B-3.
Con- 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
B-9.
Incorrect indication
item B-4.
Replace 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
B-9.
Incorrect indication
item B-5.
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