P0330

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.

* Freeze frame data is not stored in the ECM for the knock sensor. The MIL will not light for knock sensor malfunction.

ECM Terminals And Reference Value:

On Board Diagnosis Logic:

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

NOTE: Before performing the following procedure, confirm that battery voltage is more than 10 V.




With Consult
1. Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT-II.
2. Start engine and run it for at least 5 seconds at idle speed.
3. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE".

OR

With Generic Scan Tool
Follow the procedure "With CONSULT-II" above.

EC-KS-01:

EC-KS-01 Connector View:

WIRING DIAGRAM




DIAGNOSTIC PROCEDURE

COMPONENT INSPECTION




Knock sensor
1. Disconnect knock sensor harness connector.
2. Check resistance between terminal (2) and ground.
Approximately 500 - 620 kohm [at 25 °C (77 °F)]
It is necessary to use an ohmmeter which can measure more than 10 Mohm.

CAUTION: Do not use any knock sensors that have been dropped or physically damaged. Use a new one.