Yamaha FJR13AG Service Manual page 574

Fault code No. P0354
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of cylinder-#4 igni-
tion coil 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).
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).
3 Wire harness continuity.
4 Installed condition of cylinder-#4
ignition coil.
P0354
Cylinder-#4 ignition coil: open or short circuit detected in the prima-
ry 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 intervals.
The "check" indicator on the Yamaha diagnostic tool screen comes on
each time the ignition coil is actuated.
Check that a spark is generated five times.
• Connect an ignition checker.
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
the wire harness.
Between cylinder-#4 ignition coil
coupler and ECU coupler.
gray–gray
Between cylinder-#4 ignition coil
coupler and joint coupler.
red/black–red/black
Between joint coupler and right
handlebar switch coupler.
red/black–red/black
Check for looseness or pinch-
ing.
Improperly installed ignition coil
→ Reinstall or replace the igni-
tion coil.
8-97
FUEL INJECTION SYSTEM
Confirmation of service com-
pletion
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 2.
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.
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.
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.