P0521

Engine Oil Pressure Sensor/Switch Range/Performance

Powertrain Code · High

What does P0521 mean?

The oil pressure sensor readings are outside expected parameters.

System: Oil Pressure

P0521 is a powertrain diagnostic trouble code indicating engine oil pressure sensor/switch range/performance. This code is classified as high severity, which means: address soon — may cause further damage.

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.