Yamaha STAR XVS95CE 2DX1 2014 Service Manual page 346

Fault code No.
Item
4 Installed condition of crank-
shaft position sensor.
Check for looseness or
pinching.
5 Defective crankshaft posi-
tion sensor.
6 Malfunction in ECU.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of mal-
Item
function and check
1 Connection of intake air
pressure sensor 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).
2 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).
3 Connection of sub-wire har-
ness 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).
12
Crankshaft position sensor: no normal signals are received
from the crankshaft position sensor.
Improperly installed sensor
→ Reinstall or replace the
sensor.
Check the crankshaft posi-
tion sensor.
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 7-86.
Replace if defective.
Replace the ECU.
13
Intake air pressure sensor: open or short circuit detected.
Able to start engine
Able to drive vehicle
03
Displays the intake air pressure.
Set the engine stop switch to " ", and then operate the throttle
while pushing the start switch " ". (If the display value changes,
the performance is OK.)
Maintenance job
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
7-33
FUEL INJECTION SYSTEM
Crank the engine.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 5.
Crank the engine.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 6.
Confirmation of service
completion
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.