The PCM monitors the range of the analog input signal from knock sensor to check sensor failure that is short circuit or open circuit. If the difference between knock signal and noise level is smaller than the threshold during defined time period, the DTC P0326 is set. P0326 will also set if the noise value exceeds the minimum or maximum thresholds.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | Case 1, 2 |
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Signal Plausibility Monitoring. | 1. Poor Connector Connection 2. Misadjust crankshaft and camshaft pulley position |
Enable Condition | Case 1 |
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Knock Control Function Active : - Engine Coolant Temp.(ECT) higher than 149℉(65℃) - Mass Air Flow more than 5 g/rev - Ignition Key "ON" - Engine operating state out of start
•
Engine Speed higher than 2656 RPM | |
Case 2 |
•
Knock Control Function Active : - Engine Coolant Temp.(ECT) higher than 149℉(65℃) - Mass Air Flow more than 5 g/rev - Ignition Key "ON" - Engine operating state out of start | ||
Threshold Value | Case 1 |
•
Knock Noise Signal lower than 0.195V. | |
Case 2 |
•
Absolute value of difference between knowck noise signal and its sliding average lower than 0.0586V. | ||
Diagnostic Time | Case 1 |
•
200 Revs. | |
MIL ON Condition |
•
2 Driving Cycle. | ||
