Yamaha XVS950CU 2014, Service Manual

Page: 461 / 580

FUEL INJECTION SYSTEM
7-70
Fault code No. 42 (Except for ABS models)
Item
A
Speed sensor: no normal signals are received from the speed
sensor.
B Neutral switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 21
Indicated
Neutral
• “ON” (when the transmission is in neutral)
• “OFF” (when the transmission is in gear or the clutch lever re-
leased)
Procedure Shift the transmission.
Item
Probable cause of mal-
function and check
Maintenance job
Confirmation of service
completion
1 Locate the malfunction. Execute the diagnostic
mode. (Code No. 07)
Rotate the rear wheel by
hand and check that the indi-
cated value increases. Value does not increase
→
Go to item 2 in section A for
the speed sensor.
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” Incorrect indication
→
Go to
item 2.
When the transmission is in
gear with the clutch lever
squeezed and the sidestand
is retracted: “ON” Incorrect indication
→
Go to
item 2 in section C for the
clutch switch.
2 Connection of neutral switch
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). Improperly connected
→
Connect the coupler secure-
ly or replace the wire har-
ness.
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 3.