Helpful Automotive Resources
September 23, 2020 P0059 Code: HO2S Heater Resistance (Bank 2, Sensor 1)Diagnostic trouble code (DTC) P0059 stands for “HO2S Heater Resistance (Bank 2, Sensor 1).” This code may be set when the vehicle’s powertrain control module (PCM) detects that there is an issue with the heater circuit of the oxygen (O2) sensor. It may also set if the PCM detects a September 23, 2020 P0058 Code: HO2S Heater Control Circuit High (Bank 2, Sensor 2)Diagnostic Trouble Code (DTC) P0058 stands for “HO2S Heater Control Circuit High (Bank 2, Sensor 2).” This code sets when the powertrain control module (PCM) detects that the heater circuit of the oxygen (O2) sensor is encountering problems or issues. In some cases, it may also be taken to mean September 23, 2020 P0056 Code: HO2S Heater Control Circuit Bank 2 Sensor 2The PCM determines the oxygen content of the exhaust through heated oxygen sensors in the exhaust system before and after the catalytic converter(s). The data provided by the oxygen sensors helps the PCM maintain the right air-to-fuel ratio.
September 23, 2020 P0055 Code: HO2S Heater Resistance (Bank 1, Sensor 3)The “Bank 1” in this code’s definition refers to the side of the engine that contains the #1 cylinder. Meanwhile, “Sensor 3” indicates that the problem is somehow related to or associated with a downstream sensor.