OBD-II TROUBLE CODE GUIDE
P0325: Knock Sensor 1 Circuit Malfunction
The engine computer cannot reliably read the bank 1 knock-sensor circuit.
What P0325 means
The engine computer cannot reliably read the bank 1 knock-sensor circuit.
Common possible causes
- Failed knock sensor
- Damaged wiring or connector
- Moisture, corrosion, or engine mechanical noise
What to check first
Record all stored and pending codes and freeze-frame data before clearing anything. Inspect relevant wiring, connectors, hoses, fluid levels, and obvious damage. Use vehicle-specific service information and test the affected system before purchasing parts.
A code is not a parts order. Several faults can create the same code, and replacing the component named in a code description may not correct the underlying problem.
Look up P0325 for my vehicle