P0324

DTC P0324

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Strategy Based Diagnosis Strategy Based Diagnosis
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions

DTC Descriptor
DTC P0324
- Knock Sensor (KS) Module Performance

Circuit/System Description

The knock sensor (KS) enables the engine control module (ECM) to control the ignition timing for the best possible performance while protecting the engine from potentially damaging levels of detonation. The KS produces an AC voltage signal that varies depending on the vibration level during engine operation. The ECM adjusts the spark timing based on the amplitude and the frequency of the KS signal. The ECM receives the KS signal through a signal circuit. The ECM supples a ground circuit to the KS through a low reference circuit. The ECM also supplies a shielded ground circuit to the KS. The ECM learns a KS noise level at idle and uses calibrated values for the rest of the engine speed range. The ECM should monitor a normal KS signal within the noise channel.

Conditions for Running the DTC

* DTCs P0106, P0107, and P0108 are not set.
* The engine speed is more than 1,600 RPM.
* The engine coolant temperature (ECT) is more than 50°C (122°F).
* The manifold absolute pressure (MAP) is between 10-50 kPa which depends on engine speed.
* DTC P0324 runs continuously once the above conditions are met.

Conditions for Setting the DTC

The control module has detected an internal circuitry fault.

Action Taken When the DTC Sets

DTC P0324 is a Type B DTC.

Conditions for Clearing the DTC

DTC P0324 is a Type B DTC.

Reference Information

Description and Operation

Knock Sensor (KS) System Description Knock Sensor (KS) System Description

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Testing

Ignition ON, observe the DTC information with a scan tool.

If DTC P0324 failed this ignition, replace the ECM.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Control Module References Control Module References for engine control module replacement, setup, and programming