DTC P0111 INTAKE AIR TEMPERATURE CIRCUIT RANGE/PERFORMANCE
|
|
DTC P0111 INTAKE AIR TEMPERATURE CIRCUIT
RANGE/PERFORMANCE
|
Detect the malfunction of intake air temperature
sensor output property. Judge NG when the intake air temperature
is not varied whereas it seemed to be varied from the viewpoint
of engine condition.
(1)
|
Air flow
sensor
|
(A)
|
Air
|
(2)
|
Intake
air temperature sensor
|
|
|
(3)
|
Resistance
(Ω)
|
|
|
(4)
|
Intake
air temperature °C (°F)
|
|
|
|
Secondary
Parameters
|
Enable
Conditions
|
Coolant
temp. before engine start
|
< 30°C
(86°F)
|
Coolant
temperature
|
> 75°C
(167°F)
|
Battery
voltage
|
≥ 10.9
V
|
Continuous
time when the vehicle speed is less than 50 km/h (31 MPH)
|
600 seconds
or more
|
Perform the diagnosis when the vehicle speed
condition is completed after idling from starting the cooled engine.
Abnormality Judgment
Judge NG when the continuous time of completing
the malfunction criteria below becomes more than 1 second.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Output
voltage difference between Max. and Min.
|
< 20
mV (It is equal to approx. 0.5°C (33°F) around
25°.)
|
Exhaust
temperature above 500°C (932°F)
|
60 seconds
or more
|
Time Needed for Diagnosis:
1
second
Malfunction Indicator
Light Illumination:
Illuminates when malfunction occurs in
2 continuous driving cycles.
Normality Judgment
Judge OK and clear the NG when the malfunction
criteria below are completed.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Output
voltage difference between Max. and Min.
|
≥ 20
mV
|
|
•
|
When the OK idling cycle was completed 40 times
in a row
|
|
•
|
When “Clear Memory” was
performed
|
|
MALFUNCTION
INDICATOR LIGHT CLEAR CONDITION
|
|
•
|
When the OK driving cycle was completed 3 times
in a row
|
|
•
|
When “Clear Memory” was
performed
|
Intake air temperature sensor process: Intake
air temperature is fixed at 20°C (68°F).
|
ECM OPERATING
AT DTC SETTING
|
Memorize the freeze frame data. (For test
mode $02)
