What does code P0154 mean?

O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 1): The upstream O2 sensor on bank 2 shows no activity.

P0154 is rated as medium severity. Schedule service — affects performance or emissions.

P0154

O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 1)

Powertrain Code · Medium

What does P0154 mean?

The upstream O2 sensor on bank 2 shows no activity.

System: O2 Sensor

P0154 is a powertrain diagnostic trouble code indicating o2 sensor circuit no activity detected (bank 2, sensor 1). This code is classified as medium severity, which means: schedule service — affects performance or emissions.

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.