Self-Diagnostic Function And Diagnostic Code Table - Yamaha R15 2022 Service Manual

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE

Fault code
Item
No.
P0335 Crankshaft position
sensor: normal sig-
nals are not received
from the crankshaft
position sensor.
P0107 [P0107] Intake air
P0108 pressure sensor
(open or short to
ground circuit is de-
tected)
[P0108] Intake air
pressure sensor
(short to power circuit
is detected)
P0106 Intake air pressure
sensor (clogged hole
or sensor installation
improperly)
SELF-DIAGNOSTIC FUNCTION AND
DIAGNOSTIC CODE TABLE
Symptom
• Defective coupler
between crankshaft
position sensor and
ECU.
• Open or short cir-
cuit in wire harness
between crankshaft
position sensor and
ECU.
• Improperly installed
crankshaft position
sensor.
• Malfunction in stator
coil assembly.
• Defective crank-
shaft position sen-
sor.
• Malfunction in ECU.
[P0107] Low voltage
of the intake air pres-
sure sensor circuit
(0.23 V or less)
[P0108] High voltage
of the intake air pres-
sure sensor circuit
(4.86 V or more)
• Defective coupler
between throttle
body sensor assem-
bly and ECU.
• Open or short cir-
cuit in wire harness
between throttle
body sensor assem-
bly and ECU.
• Defective intake air
pressure sensor.
• Malfunction in ECU.
• Detached throttle
body sensor assem-
bly.
• Improperly installed
throttle body.
• Clogged intake air
pressure sensor
hole.
Possible cause
Engine cannot be
started.
Engine idling speed is
high.
Engine idling speed is
unstable.
Engine response is
poor.
Loss of engine power.
Increased exhaust
emissions.
Engine idling speed is
high.
Engine idling speed is
unstable.
Engine response is
poor.
Loss of engine power.
Increased exhaust
emissions.
8-37
ELEC – +
Remarks
Does not operate.
Intake air pressure dif-
ference is fixed to
0 [kPa].
Load is detected ac-
cording to the throttle
opening.
Intake manifold pres-
sure is calculated us-
ing the throttle posi-
tion sensor.
Transient control ac-
cording to the intake
air pressure is not car-
ried out.
Intake air pressure is
fixed to 101.3 [kPa].
O feedback is not
2
carried out.
Intake air pressure dif-
ference is fixed to
0 [kPa].
Load is detected ac-
cording to the throttle
opening.
Intake manifold pres-
sure is calculated us-
ing the throttle
position sensor.
Transient control ac-
cording to the intake
air pressure is not car-
ried out.
Intake air pressure is
fixed to 101.3 [kPa].
O feedback is not
2
carried out.