P0325 - Knock Sensor 1 Circuit Malfunction

The Knock Sensor (KS) circuit is monitored by the Powertrain Control Module (PCM). The test fails when an excessively high or low voltage is received by the PCM from the knock sensor.

Possible Causes:
- KS circuit open or shorted
- KS

Diagnostic Aids:
The KS resistance should be 500-620 ohms at 25°C (77°F).