Yamaha Star XVS950A 2009, Service Manual

Page: 342 / 402

FUEL INJECTION SYSTEM
7-55
Fault code No. 41
Symptom Open or short circuit of lean angle sensor lead
Fail-safe action
Engine startup: Impossible
Riding: Impossible
Diagnostic monitor-
ing code No.
08
Meter display
The lean angle sensor value is indicated.
0 to 5.0 V
The vehicle is in a vertical position: 0.4–1.4 V
The vehicle is turned over: 3.7–4.4 V
Checking method
Remove the lean angle sensor, tilt the vehicle more than 65 degrees,
and check the meter indication value.
Order
Item/components and
probable cause
Check or mainte-
nance job
Sensor inspection
procedure
1 Connection of lean
angle sensor coupler
Check the connection
of the coupler is
secure.
Remove the coupler,
and check each pin (for
bending, wear, or lock-
ing). Poor connection
→
Connect it securely, or
repair/replace the wire
harness.
Rotate the main switch
to the OFF position
first, and then rotate it
to the ON position
again.
Then, check the fault
code indication.
No fault code indicated.
→
Recovered.
Fault code indicated.
→
Check the next step.
2 Connection of main
harness ECU coupler
Check the connection
of the coupler is
secure.
Remove the coupler,
and check each pin (for
bending, wear, or lock-
ing). Poor connection
→
Connect it securely, or
repair/replace the har-
ness.
Rotate the main switch
to the OFF position
first, and then rotate it
to the ON position
again.
Then, check the fault
code indication.
No fault code indicated.
→
Recovered.
Fault code indicated.
→
Check the next step.
3 Continuity of wire har-
ness Open or short circuit
→
Replace the wire har-
ness.
Black/Blue–Black/Blue
Yellow/Green–Yellow/
Green
Blue–Blue
Rotate the main switch
to the OFF position
first, and then rotate it
to the ON position
again.
Then, check the fault
code indication.
No fault code indicated.
→
Recovered.
Fault code indicated.
→
Check the next step.