Knock Sensor 1 Circuit Malfunction (Bank 1)
Powertrain Code · Medium
What does P0325 mean?
The knock sensor 1 on bank 1 is not functioning properly. The ECM cannot detect engine knock/detonation.
System: Knock Sensor
P0325 is a powertrain diagnostic trouble code indicating knock sensor 1 circuit malfunction (bank 1). This code is classified as medium severity, which means: schedule service — affects performance or emissions. We have vehicle-specific diagnostic data for 43 models below. Select your vehicle for tailored causes, symptoms, and repair cost estimates.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.
See causes, symptoms, and repair costs for P0325 on specific vehicles: