Neutral Switch: Open Or Short Circuit Is Detected; Clutch Switch: Open Or Short Circuit Is Detected - Yamaha R1 Series 2015 Service Manual

Fault code No.
Item
Item Probable cause of
malfunction and check
A-1 Locate the malfunction.
A-2 Connection of rear wheel sen-
sor 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).
A-3 Connection of ABS ECU cou-
pler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
A-4 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).
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.
Maintenance job
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
retracted: "ON"
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
8-82
FUEL INJECTION SYSTEM
Confirmation of service com-
Value does not increase
to item A-2.
Incorrect indication
item B-2 for the neutral switch.
Incorrect indication
item C-2 for the clutch switch.
Con- Execute the diagnostic mode.
(Code No. 07)
Rotate the rear wheel by hand
and check that the indicated
value increases.
Value increases
A-8 and delete the fault code.
Value does not increase
to item A-3.
Con- Execute the diagnostic mode.
(Code No. 07)
Rotate the rear wheel by hand
and check that the indicated
value increases.
Value increases
A-8 and delete the fault code.
Value does not increase
to item A-4.
Con- Execute the diagnostic mode.
(Code No. 07)
Rotate the rear wheel by hand
and check that the indicated
value increases.
Value increases
A-8 and delete the fault code.
Value does not increase
to item A-5.
pletion
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