P0325
Sistema
Powertrain (Engine)
Escáner necesario
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.

Síntomas habituales

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

Causas típicas

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

¿Qué escáner necesita?

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

Use datos en vivo y freeze frame antes de cambiar piezas. Códigos ABS, SRS y U suelen requerir un escáner de todos los sistemas.

Consejos de diagnóstico

  • Registre el freeze frame cuando se active el código
  • Borre el código solo tras corregir la causa
  • Revise códigos pendientes relacionados
  • Verifique que la batería esté por encima de 12,4 V antes de sospechar sensores

Escáneres FOXWELL recomendados

Preguntas frecuentes

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.