DTC: P0328

Search Bulletins/Recalls for P0328

Trouble diagnosis name: Knock sensor circuit high input

Shape may vary for some models

Component Description

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM.

DTC detecting condition:

• An excessively high voltage from the sensor is sent to ECM.

Possible cause:

• Harness or connectors (The sensor circuit is open or shorted.)
• Knock sensor may be faulty