Yamaha YZF-R1 Series Service Manual page 537

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC Item
P0107 [P0107] Intake air
P0108 pressure sensor:
ground short circuit
detected.
[P0108] Intake air
pressure sensor:
open or power short
circuit detected.
P0112 [P0112] Intake air
P0113 temperature sensor:
ground short circuit
detected.
[P0113] Intake air
temperature sensor:
open or power short
circuit detected.
Probable cause of
malfunction
Engine idling speed is
[P0107] Low voltage
of the intake air pres- unstable.
sure sensor circuit Engine response is
(0.5 V or less) poor.
[P0108] High voltage Loss of engine power.
of the intake air pres- Increased exhaust
sure sensor circuit emissions.
(4.8 V or more)
• Defective coupler
between intake air
pressure sensor and
ECU.
• Open or short cir-
cuit in wire harness
between intake air
pressure sensor and
ECU.
• Defective intake air
pressure sensor.
• Malfunction in ECU.
[P0112] Low voltage Engine is difficult to
of the intake air tem- start.
Increased exhaust
perature sensor circuit
(0.1 V or less) emissions.
[P0113] High voltage Engine idling speed is
of the intake air tem- unstable.
perature sensor circuit
(4.8 V or more)
• Defective coupler
between intake air
temperature sensor
and ECU.
• Open or short cir-
cuit in wire harness
between intake air
temperature sensor
and ECU.
• Improperly installed
intake air tempera-
ture sensor.
• Defective intake air
temperature sensor.
• Malfunction in ECU.
9-40
Fail-safe system op-
Vehicle symptom
Intake air pressure
difference is fixed to 0
[kPa].
α–N is fixed.
Fuel is not cut off due
to the intake air pres-
sure difference.
Atmospheric pres-
sure sensor output
correction value is
fixed to 0.
Intake air pressure is
fixed to 101.3 [kPa].
O
2
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
QSS is not carried
out.
The intake air tem-
perature is fixed to 20
[°C].
O
2
ing is not carried out.
O
2
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
QSS is not carried
out.
eration
feedback is not
sensor heater driv-
feedback is not