OBD-II code · Powertrain (generic)
P0054 HO2S Heater Resistance Bank 1 Sensor 2
The heater resistance of the bank 1, sensor 2 oxygen sensor is outside its specified range. Sensor heater aging or short between heater and signal.
Is it safe to drive with P0054?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyHeater element aged
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Oxygen Sensor B1s2
Related codes
- P0053HO2S Heater Resistance Bank 1 Sensor 1
- P0055HO2S Heater Resistance Bank 1 Sensor 3
- P0059HO2S Heater Resistance Bank 2 Sensor 1
- P0060HO2S Heater Resistance Bank 2 Sensor 2
- P0061HO2S Heater Resistance Bank 2 Sensor 3
- P0051HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
- P0052HO2S Heater Control Circuit High (Bank 2 Sensor 1)
- P0056HO2S Heater Control Circuit (Bank 2 Sensor 2)
- P0057HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.