DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH INPUT (BANK 1 OR SINGLE SENSOR)
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DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH INPUT
(BANK 1 OR SINGLE SENSOR)
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Detect the open or short circuit of the knock
sensor. Judge NG when out of the standard value.
(1)
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Case
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(4)
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Nut
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(A)
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To knock
sensor harness
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(2)
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Weight
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(5)
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Resistance
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(3)
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Piezoelectric
element
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Secondary
Parameters
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Enable
Conditions
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None
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Always perform diagnosis continuously.
Abnormality Judgment
Judge NG when the continuous time of completing
the malfunction criteria below becomes more than 1 second.
Judgment
Value
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Malfunction
Criteria
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Threshold
Value
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Output
voltage
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≥ 4.714
V
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Ignition
switch
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ON
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Time Needed for Diagnosis:
1
second
Malfunction Indicator
Light Illumination:
Illuminates as soon as the malfunction
occurs.
Normality Judgment
Judge OK and clear NG when the malfunction
criteria below are completed.
Judgment
Value
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Malfunction
Criteria
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Threshold
Value
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Output
voltage
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< 4.7
V
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Ignition
switch
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ON
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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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When “Clear Memory” was
performed
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Knock compensation:
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•
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At normal: Learned ignition timing value = knock
F/B timing value + whole learning timing value + partial learning
timing value.
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At trouble: Learned ignition timing = −3°CA
(Retard 3°CA)
Knock F/B timing value = 0°CA
Whole learning is not allowed.
Partial learning is not allowed.
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ECM OPERATING
AT DTC SETTING
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Memorize the freeze frame data. (For test
mode $02)
