Error code

OBD2 P0325

OBD2P0325
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Knock Sensor 1 Circuit.

Severity

moderateCan drive, but performance issues may occur.

Summary

P0325 indicates a malfunction in Knock Sensor 1 circuit on bank 1 of the engine.

Symptoms

  • Lack of power
  • Engine hesitation
  • Pinging or knocking sounds

Common Causes

  • Failed knock sensor
  • Faulty wiring or poor connection in the knock sensor circuit
  • PCM failure

Diagnosis

  1. Visually inspect the sensor and connection.
  2. Perform a basic test of the knock sensor using a timing light or scan tool.
  3. Test the sensor output with a digital multimeter.
  4. Check continuity in the circuit between the sensor and PCM.

Fixes

  • Replace the faulty knock sensor if it is determined to be bad.

FAQ

What does P0325 mean?

P0325 indicates a malfunction in Knock Sensor 1 circuit on bank 1 of the engine.

How do I diagnose P0325?

Diagnose by visually inspecting, performing basic tests with a timing light or scan tool, testing sensor output, and checking continuity in the circuit.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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