DTC P0324
Diagnostic Instructions
DTC Descriptor
DTC P0324 00: Knock Sensor Module Performance
Circuit/System Description
The knock sensor system 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 knock sensor produces an A/C 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 knock sensor signal. The ECM receives the knock sensor signal through a signal circuit and a low reference circuit. The ECM learns a minimum knock sensor noise level at idle and uses calibrated values for the rest of the RPM range. The ECM should monitor a normal knock sensor signal within the noise channel.
Conditions for Running the DTC
| • | DTCs P0106 00, P0107 00, and P0108 00 are not set. |
| • | The engine speed is greater 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 (1.4-7.2 PSI) which depends on engine speed. |
| • | This DTC runs continuously within the enabling conditions. |
Conditions for Setting the DTC
The ECM has detected an internal knock sensor circuitry fault.
Action Taken When the DTC Sets
DTC P0324 00 is a Type C DTCs.
Conditions for Clearing the DTC
DTC P0324 00 is a Type C DTCs.
Reference Information
Description and Operation
Knock Sensor System Description
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Circuit/System Testing
Ignition ON, observe the DTC information with a scan tool.
| ⇒ | If DTC P0324 00 failed this ignition, replace the K20 Engine Control Module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for ECM replacement, setup, and programming
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