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Fault code No. P0351
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Probable cause of malfunc-
Item
tion and check
1
Connection of ignition coil cou-
pler.
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 ignition
coil.
P0351
Ignition coil: open or short circuit detected in the primary lead of
the ignition coil.
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
30
Actuates the 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
replace the wire harness.
Improperly connected Con-
nect the coupler securely or
replace the wire harness.
Open or short circuit Replace
the wire harness.
Between ignition coil coupler
and ECU coupler.
orange–orange
Between ignition coil coupler
and diode switch coupler.
red/black–red/black
Check for looseness or pinch-
ing.
Improperly installed ignition coil
Reinstall or replace the igni-
tion coil.
8-89
FUEL INJECTION SYSTEM
Confirmation of service com-
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.
pletion
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Table of Contents
Troubleshooting
