Yamaha FJR1300A(D), Service Manual

Page: 508 / 662

FUEL INJECTION SYSTEM
8-59
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-#2 ignition
coil coupler and ECU cou-
pler.
gray/red–gray/red
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-#2 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-#2 igni-
tion coil. Measure the primary coil re-
sistance of the cylinder-#2
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. 31)
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.
Fail-safe system
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
Diagnostic code No. 32
Actuation
Actuates the cylinder-#3 ignition coil five times at one-second in-
tervals.
Illuminates the engine trouble warning light.
Procedure
Check that a spark is generated five times.
• Connect an ignition checker.
Fault code No. 34
Item
Cylinder-#2 ignition coil: open or short circuit detected in the
primary lead of the cylinder-#2 ignition coil.