{"id":16277,"date":"2021-10-15T02:07:00","date_gmt":"2021-10-15T09:07:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16277"},"modified":"2026-07-17T04:38:29","modified_gmt":"2026-07-17T11:38:29","slug":"p0036-code-p0036-ho2s-heater-control-circuit-bank-1-sensor-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0036-code-p0036-ho2s-heater-control-circuit-bank-1-sensor-2\/","title":{"rendered":"P0036 Code: P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)"},"content":{"rendered":"\nReading Time: <\/span> 8<\/span> minutes<\/span><\/span>\n

Code P0036 means your powertrain control module found a problem with the heater circuit for the bank 1, sensor 2 oxygen sensor. That sensor sits downstream of the catalytic converter and needs a functioning heater to provide accurate readings. When the heater circuit doesn’t behave the way it should, the PCM stores P0036 and turns on the check engine light.<\/p>\n\n\n\n

Quick Answers: What You Need to Know About P0036<\/h2>\n\n\n\n