Yamaha FJR13AG, Service Manual

Page: 573 / 784

FUEL INJECTION SYSTEM
8-96
2 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 7 and finish the service.
Condition is “Detected”
→
Go to
item 3.
3 Wire harness continuity. Open or short circuit
→
Replace
the wire harness.
Between cylinder-#3 ignition coil
coupler and ECU coupler.
orange/green–orange/green
Between cylinder-#3 ignition coil
coupler and joint coupler.
red/black–red/black
Between joint coupler and right
handlebar switch coupler.
red/black–red/black
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 7 and finish the service.
Condition is “Detected”
→
Go to
item 4.
4 Installed condition of cylinder-#3
ignition coil. Check for looseness or pinch-
ing.
Improperly installed ignition coil
→
Reinstall or replace the igni-
tion coil.
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 7 and finish the service.
Condition is “Detected”
→
Go to
item 5.
5 Defective cylinder-#3 ignition
coil. Measure the primary coil resis-
tance of the cylinder-#3 ignition
coil.
Replace if out of specification.
Refer to “CHECKING THE IG-
NITION COILS” on page 8-257. Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 7 and finish the service.
Condition is “Detected”
→
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 8-250.
Service is finished.
7 Delete the fault code and check
that the engine trouble warning
light goes off. Confirm that the fault code has
a condition of “Recovered” us-
ing the Yamaha diagnostic tool,
and then delete the fault code.
Fault code No. P0353
Item
Cylinder-#3 ignition coil: open or short circuit detected in the prima-
ry lead of the cylinder-#3 ignition coil.