Yamaha R15 2022 Service Manual page 373

Fault code
Item
No.
P0351 Ignition system (nor-
mal signal is not re-
ceived from the
ignition circuit)
sensor
P0030 O
2
(Defective heater or
heater driver ON/OFF
command and error
signal is mismatch-
ing.)
P0201 Fuel injector (normal
signal is not received
from the injector cir-
cuit.)
P062F EEPROM fault code
number (an error is
detected while read-
ing or writing on
EEPROM)
P0500 Front wheel sensor
(normal signal is not
received from the
front wheel sensor)
SELF-DIAGNOSTIC FUNCTION AND
DIAGNOSTIC CODE TABLE
Symptom
• Defective coupler
between ignition coil
and ECU.
• Open or short cir-
cuit in wire harness
between ignition coil
and ECU.
• Improperly installed
ignition coil.
• Defective ignition
coil.
• Malfunction in ECU.
• Short to power cir-
cuit in wire harness
between O
and ECU.
• Defective coupler
between O
and ECU.
• Broken or discon-
nected lead in O
sensor heater.
• Malfunction in ECU.
• Defective coupler
between fuel injector
and ECU.
• Open or short cir-
cuit in wire harness
between fuel injector
and ECU.
• Defective fuel injec-
tor.
• Malfunction in ECU.
• Improperly installed
fuel injector.
• Malfunction in ECU.
feedback learn-
• O
2
ing value is not
properly written.
• CO adjustment val-
ue is not properly
written.
• OBD memory value
is not properly writ-
ten.
• Open or short cir-
cuit in wire harness
between front wheel
sensor and ABS
ECU.
• Open or short cir-
cuit in wire harness
between ABS ECU
and ECU.
• Defective front
wheel sensor.
• Malfunction in ECU.
Possible cause
Engine stops.
Loss of engine power.
Engine is difficult to
start.
Engine cannot be
started.
(When the O
does not operate
sensor
because the exhaust
2
temperature is low)
Increased exhaust
sensor emissions.
2
Fuel learning cannot
be carried out.
2
Loss of engine power.
Engine is difficult to
start.
Engine cannot be
started.
Engine stops.
Increased exhaust
emissions.
Engine cannot be
started or is difficult to
start.
Engine idling speed is
unstable.
OBD memory value is
not correct.
Vehicle speed is not
displayed on the me-
ter.
Increased exhaust
emissions.
8-40
ELEC
Remarks
When engine is run-
ning:
Engine is forcefully
stopped.
When engine is
stopped:
Engine cannot be
started.
Injection is not car-
ried out.
sensor If the O sensor does
2 2
not operate, O
back is not carried
out.
When engine is run-
ning:
Engine is forcefully
stopped.
When engine is
stopped:
Engine cannot be
started.
Injection is not car-
ried out.
O feedback learning
2
value is initialized.
CO adjustment value
is initialized.
OBD memory value is
initialized.
O feedback is not
2
carried out.
– +
feed-
2