Yamaha STAR XVS95CE 2DX1 2014 Service Manual page 358

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Probable cause of mal-
Item
function and check
1 Connection of rear cylinder
ignition coil 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 Wire harness continuity.
4 Installed condition of rear
cylinder ignition coil.
Check for looseness or
pinching.
5 Defective rear cylinder igni-
tion coil.
34
Rear cylinder ignition coil: open or short circuit detected in
the primary lead of the rear cylinder ignition coil.
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
31
Actuates the rear cylinder ignition coil five times at one-second in-
tervals.
Illuminates the engine trouble warning light.
Check that a spark is generated five times.
• Connect an ignition checker.
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.
Open or short circuit → Re-
place the wire harness.
Between rear cylinder igni-
tion coil coupler and ECU
coupler.
gray/red–gray/red
Improperly installed ignition
coil → Reinstall or replace
the ignition coil.
Measure the primary coil re-
sistance of the rear cylinder
ignition coil.
Replace if out of specifica-
tion.
Refer to "CHECKING THE
IGNITION COILS" on page
7-86.
7-45
FUEL INJECTION SYSTEM
Confirmation of service
completion
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 5.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 6.