Yamaha MT-09 2021 - Page 484

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SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
P00D1 O
2
sensor: heater
performance deteri-
oration
• Improperly in-
stalled O
2
sensor.
• Defective coupler
between O
2
sen-
sor and ECU.
• Open or short cir-
cuit in wire har-
ness between O
2
sensor and ECU.
• Incorrect fuel pres-
sure.
• Defective O
2
sen-
sor.
• Malfunction in
ECU.
Increased exhaust
emissions.
O
2
feedback is not
carried out.
O
2
learning is not
carried out.
QSS is not carried
out.
Cruise control sys-
tem cannot be oper-
ated. (for
MTN890D)
P0105 Intake air pressure
sensor: signal out of
range
• Defective coupler
between intake air
pressure sensor
and ECU.
• Open or short cir-
cuit in wire har-
ness between
intake air pressure
sensor and ECU.
• Defective intake
air pressure sen-
sor.
• Malfunction in
ECU.
Engine idling speed
is unstable.
Engine response is
poor.
Loss of engine pow-
er.
Increased exhaust
emissions.
Intake air pressure
is fixed to 101.3
[kPa].
Intake air pressure
difference is fixed to
0 [kPa].
α–N is fixed.
Fuel is not cut off
due to the intake air
pressure difference.
O
2
feedback is not
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
QSS is not carried
out.
Cruise control sys-
tem cannot be oper-
ated. (for
MTN890D)
DTC Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system
operation