Yamaha 2009 Diversion XJ6S Service Manual page 442

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 bend-
ing, wear, or locking).
Connection of wire har-
ness ECU coupler
Check the connection of
the coupler is secure.
Remove the coupler, and
check each pin (for bend-
ing, wear, or locking).
Continuity of wire har-
ness
Continuity of leads
between neutral switch
and relay unit coupler
Neutral switch malfunc-
tion
Shift drum (that detects
the neutral position) mal-
function
ECU malfunction
FUEL INJECTION SYSTEM
Check or maintenance
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 or short circuit ⇒
Replace the neutral
switch.
Sky blue–Sky blue
Replace the neutral
switch.
Refer to "CHECKING
THE SWITCHES" on
page 8-149.
Check the gear shift
drum (that detects the
neutral position).
Refer to "CHECKING
THE SHIFT DRUM
ASSEMBLY" on page
5-81.
Malfunction ⇒ Replace
the shift drum.
Replace the ECU.
8-71
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).