What does code P0030 mean?

HO2S Heater Control Circuit (Bank 1, Sensor 1): The heated oxygen sensor heater control circuit on bank 1, sensor 1 has a fault.

P0030 is rated as low severity. Minor issue — monitor and fix at convenience.

P0030

HO2S Heater Control Circuit (Bank 1, Sensor 1)

Powertrain Code · Low

What does P0030 mean?

The heated oxygen sensor heater control circuit on bank 1, sensor 1 has a fault.

System: O2 Sensor

P0030 is a powertrain diagnostic trouble code indicating ho2s heater control circuit (bank 1, sensor 1). This code is classified as low severity, which means: minor issue — monitor and fix at convenience.

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.