P0331 — Knock Sensor 2 Circuit Malfunction (Bank 2)

What it means

P0331 is an OBD-II diagnostic trouble code: Knock Sensor 2 Circuit Malfunction (Bank 2).

Typical fix

Confirm the code with an OBD-II scanner, then inspect the component or circuit named above. Consult a vehicle-specific service manual for the full diagnostic and repair procedure.