P0325 Knock Sensor Circuit
Need a step-by-step guide?
Get an AI-powered repair guide with parts lists, cost estimates, and clear instructions for your 1999 Chrysler.
P-0325 KNOCK SENSOR CIRCUIT
WHEN MONITORED
With the ignition on and the engine running.
SET CONDITION
The knock sensor circuit voltage falls below a minimum value at idle or deceleration. The minimum value is from a look-up table internal to the PCM and is based on engine rpm. The trouble code also sets if the sensor output is above 5.0 volts.
POSSIBLE CAUSES
- Knock sensor signal circuit open
- Knock sensor signal circuit shorted to voltage
- Knock sensor defective
- Knock sensor ground circuit open
- Knock sensor signal circuit shorted to ground