OBD-II code · Powertrain (generic)

P0059 HO2S Heater Resistance Bank 2 Sensor 1

Heater resistance out of range on bank 2 sensor 1 (pre-cat). Same diagnostic as P0053 on the second bank.

Is it safe to drive with P0059?

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 B2s1

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.