Detection Condition
WARNING: This page is about a different car, the 2003 Mazda B4000, 2003 Mazda B3000, and 2003 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P0325 indicates knock sensor circuit malfunction.
- DTC P0326 indicates knock sensor has detected vibrations (voltage generated is based on this vibration) relative with engine speed that is outside a calibrated level.
KS is a tuned accelerometer on engine that converts engine vibration to an electrical signal. PCM uses this signal to determine presence of engine knock and retard ignition timing as necessary.