DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR LOW INPUT
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DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM
PRESSURE SENSOR LOW INPUT
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Detect the open or short circuit of the fuel
tank pressure sensor.
Judge NG when out of the standard value.
(1)
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Connector
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(A)
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Output
voltage
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(2)
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Terminal
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(B)
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Input voltage
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(C)
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To fuel
tank
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(D)
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To atmospheric
pressure switching solenoid
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Secondary
Parameters
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Enable
Conditions
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None
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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
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Malfunction
Criteria
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Threshold
Value
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Fuel
tank pressure
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≤ −7.36 kPa (−55.18 mmHg, −2.17
inHg)
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Battery
voltage
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≥ 10.9
V
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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
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Malfunction
Criteria
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Threshold
Value
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Fuel tank
pressure
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> −7.36
kPa (−55.18 mmHg, −2.17 inHg)
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•
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When the OK idling cycle was completed 40 times
in a row
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•
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When “Clear Memory” was
performed
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MALFUNCTION
INDICATOR LIGHT CLEAR CONDITION
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•
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When the OK driving cycle was completed 3 times
in a row
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•
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When “Clear Memory” was
performed
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Purge control solenoid valve control: Purge
fixation mode is prohibited.
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ECM OPERATION
AT DTC SETTING
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Memorize the freeze frame data. (For test
mode $02)
