DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR LOW INPUT
|
|
DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM
PRESSURE SENSOR LOW INPUT
|
Detect the open or short circuit of the fuel
tank pressure sensor.
Judge NG when out of the standard value.
(1)
|
Connector
|
(A)
|
Output
voltage
|
(C)
|
To fuel
tank
|
(2)
|
Terminal
|
(B)
|
Input voltage
|
(D)
|
To atmospheric pressure switching solenoid
|
|
|
|
|
|
|
Secondary
Parameters
|
Enable
Conditions
|
Battery
voltage
|
≥ 10.9
V
|
Always perform the diagnosis continuously.
Abnormality Judgment
Judge NG when the continuous time of completing
the malfunction criteria below becomes more than 15 seconds.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Fuel tank
pressure
|
≤ −7.44
kPa (−55.86 mmHg, −2.20 inHg)
|
Time Needed for Diagnosis:
15
seconds
Malfunction Indicator
Light Illumination:
Illuminates as soon as malfunction occurs.
Normality Judgment
Judge OK when the malfunction criteria below
is completed.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
Fuel tank
pressure
|
> −7.44
kPa (−55.86 mmHg, −2.20 inHg)
|
|
•
|
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
|
Purge control solenoid valve control: Purge
fixation mode is prohibited.
|
ECM OPERATION
AT DTC SETTING
|
Memorize the freeze frame data. (For test
mode $02)
