Yamaha FJR1300A(D) - Page 509

FUEL INJECTION SYSTEM
8-60
Item
Probable cause of mal-
function and check
Maintenance job
Confirmation of service
completion
1 Connection of cylinder-#3 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).
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
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.
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).
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
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.
3 Wire harness continuity. Open or short circuit → Re-
place the wire harness.
Between cylinder-#3 ignition
coil coupler and ECU cou-
pler.
orange/green–orange/green
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.
4 Installed condition of cylin-
der-#3 ignition coil.
Check for looseness or
pinching.
Improperly installed ignition
coil → Reinstall or replace
the ignition coil.
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.
5 Defective cylinder-#3 igni-
tion coil.
Measure the primary coil re-
sistance of the cylinder-#3
ignition coil.
Replace if out of specifica-
tion.
Refer to “CHECKING THE
IGNITION COILS” on page
8-181.
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.
6 Malfunction in ECU. Execute the diagnostic
mode. (Code No. 32)
No spark → Replace the
ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-174.
Fault code No. 35
Item
Cylinder-#3 ignition coil: open or short circuit detected in the
primary lead of the cylinder-#3 ignition coil.