P0325
Systeem
Powertrain (Engine)
Scanner vereist
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Knock Sensor 1 Circuit Malfunction

Understand P0325, common causes, and the right FOXWELL scanner to diagnose it.

Knock sensor signal missing or out of range — ECU may retard timing and reduce performance.

Veelvoorkomende symptomen

  • Reduced power
  • Ping under load if sensor ignored
  • Check engine light

Typische oorzaken

  • Failed knock sensor
  • Wiring damage
  • Sensor not torqued correctly
  • ECU input fault

Welke scanner heb je nodig?

Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Gebruik live data en freeze frame voordat je onderdelen vervangt. ABS-, SRS- en U-codes vereisen meestal een full-system scanner.

Diagnosetips

  • Leg freeze frame vast wanneer de code voor het eerst verschijnt
  • Wis de code pas na het oplossen van de oorzaak
  • Controleer op gerelateerde pending codes
  • Controleer of accuspanning boven 12,4 V is voordat je sensoren suspecteert

Aanbevolen FOXWELL scanners

Veelgestelde vragen

Can I diagnose P0325 with a basic code reader?
P0325 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with P0325?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.