Yamaha V Star 950 Service Manual page 344

B. Neutral switch system malfunction
Order
1
2
3
4
5
6
7
Item/components and
probable cause
Connection of neutral
switch coupler
Check the connection
of the coupler is
secure.
Remove the coupler,
and check each pin (for
bending, wear, or lock-
ing).
Connection of wire har-
ness ECU coupler
Check the connection
of the coupler is
secure.
Remove the coupler,
and check each pin (for
bending, wear, or lock-
ing).
Continuity of wire har-
ness
Continuity of leads
between neutral switch
and relay unit coupler
Neutral switch malfunc-
tion
Refer to "CHECKING
THE SWITCHES" on
page 7-77.
Shift drum (that detects
the neutral position)
malfunction
ECU malfunction
7-59
FUEL INJECTION SYSTEM
Check or mainte-
nance job
Poor connection →
Reconnect or repair the
coupler.
Poor connection →
Reconnect or repair the
coupler.
Open or short circuit →
Replace the wire har-
ness.
White/Red
Black/Blue
Open short circuit →
Replace the neutral
switch.
Sky blue–Sky blue
Replace the neutral
switch.
Check the gear shift
drum (that detects the
neutral position).
Refer to "CHECKING
THE SHIFT DRUM
ASSEMBLY" on page
5-76.
Malfunction → Replace
the shift drum.
Replace the ECU.
Sensor inspection
procedure
Start the engine, and
check the secure con-
nection of the coupler.
Ride the vehicle at a
low speed (approx. 20–
30 km/h).