Yamaha FJR1300A(D) Service Manual page 510

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Probable cause of mal-
Item
function and check
1 Connection of cylinder-#4 ig-
nition 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 wire harness
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 cylin-
der-#4 ignition coil.
Check for looseness or
pinching.
5 Defective cylinder-#4 igni-
tion coil.
36
Cylinder-#4 ignition coil: open or short circuit detected in the
primary lead of the cylinder-#4 ignition coil.
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
33
Actuates the cylinder-#4 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 cylinder-#4 ignition
coil coupler and ECU cou-
pler.
gray–gray
Improperly installed ignition
coil → Reinstall or replace
the ignition coil.
Measure the primary coil re-
sistance of the cylinder-#4
ignition coil.
Replace if out of specifica-
tion.
Refer to "CHECKING THE
IGNITION COILS" on page
8-181.
8-61
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.