Yamaha R15 2022 Service Manual page 398

FUEL INJECTION SYSTEM TROUBLESHOOTING
Fault code No. P0030
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of O
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).
P0030
O sensor: defective heater or heater driver ON/OFF command and
2
error signal is mismatching.
Able to start engine
Able to drive vehicle
—
—
—
Improperly connected → Con-
sensor cou-
2
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Maintenance job
8-65
ELEC
Confirmation of service com-
pletion
Turn the main switch to "ON",
and then check the fault code
using the malfunction mode of
the YDT.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" →
Start the engine, and then
check the fault code.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 2.
TIP
For this check, also set the
engine stop/start switch to "ON".
Turn the main switch to "ON",
and then check the fault code
using the malfunction mode of
the YDT.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" →
Start the engine, and then
check the fault code.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 3.
TIP
For this check, also set the
engine stop/start switch to "ON".
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