Ford P0037 OBD-II Trouble Code Definition: P0037 HO2S Heater Control Circuit Low Bank 1 Sensor 2 P0037 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0037 HO2S Heater Control Circuit Low What does the code mean? OBD-ii Code P0037 definition: Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 […]