Yamaha STAR XVS95CE 2DX1 2014 Service Manual page 368

Fault code No.
Item
3 Connection of ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
4 Wire harness continuity.
5 Defective relay unit.
6 Defective neutral switch.
42
Speed sensor: no normal signals are received from the speed
A
sensor.
B Neutral switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between neutral switch con-
nector and sub-wire harness
coupler.
sky blue–sky blue
Between sub-wire harness
coupler and relay unit cou-
pler.
sky blue–sky blue
Between relay unit coupler
and ECU coupler.
black/yellow–black/yellow
Check the relay unit.
Refer to "CHECKING THE
RELAY UNIT (DIODE)" on
page 7-84.
Check the neutral switch.
Refer to "CHECKING THE
SWITCHES" on page 7-75.
7-55
FUEL INJECTION SYSTEM
Execute the diagnostic
mode. (Code No. 21)
When the transmission is in
neutral: "ON"
When the transmission is in
gear with the clutch lever re-
leased: "OFF"
Correct indication → Go to
item 9.
Incorrect indication → Go to
item 4.
Execute the diagnostic
mode. (Code No. 21)
When the transmission is in
neutral: "ON"
When the transmission is in
gear with the clutch lever re-
leased: "OFF"
Correct indication → Go to
item 9.
Incorrect indication → Go to
item 5.
Execute the diagnostic
mode. (Code No. 21)
When the transmission is in
neutral: "ON"
When the transmission is in
gear with the clutch lever re-
leased: "OFF"
Correct indication → Go to
item 9.
Incorrect indication → Go to
item 6.
Execute the diagnostic
mode. (Code No. 21)
When the transmission is in
neutral: "ON"
When the transmission is in
gear with the clutch lever re-
leased: "OFF"
Correct indication → Go to
item 9.
Incorrect indication → Go to
item 7.