Yamaha TMAX 2020 Service Manual page 517

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
[P0107] Low voltage
of the intake air
pressure sensor cir-
cuit (0.5 V or less)
[P0108] High volt-
age of the intake air
pressure sensor cir-
cuit (4.8 V or more)
• 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.
[P0112] Low voltage
of the intake air tem-
perature sensor cir-
cuit (0.1 V or less)
[P0113] High volt-
age of the intake air
temperature sensor
circuit (4.8 V or
more)
• Defective coupler
between intake air
temperature sen-
sor and ECU.
• Open or short cir-
cuit in wire har-
ness between
intake air tempera-
ture sensor and
ECU.
• Improperly in-
stalled intake air
temperature sen-
sor.
• Defective intake
air temperature
sensor.
• Malfunction in
ECU.
9-43
Vehicle symptom
Engine idling speed
is unstable.
Engine response is
poor.
Loss of engine pow-
er.
Increased exhaust
emissions.
Engine is difficult to
start.
Increased exhaust
emissions.
Engine idling speed
is unstable.
Fail-safe system
operation
Intake air pressure
is fixed to 101.3
[kPa].
–N is fixed.
Fuel is not cut off
due to the intake air
pressure difference.
O feedback is not
2
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
Cruise control sys-
tem cannot be oper-
ated.
The intake air tem-
perature is fixed to
20 [C].
O sensor heater
2
driving is not carried
out.
O feedback is not
2
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
Cruise control sys-
tem cannot be oper-
ated.