P0044 OBD II Trouble Code HO2S Heater Control Circuit High Bank 1 Sensor 3
Symptoms of P0044 OBD II Trouble Code
- MIL (Malfunction indicator lamp) illumination
Common Causes of P0044 OBD II Trouble Code
- Faulty heated oxygen sensor #3 on bank 1
- Open in the heater control circuit (12 volt PCM controlled systems)
- Short to B+ (battery voltage) in the heater control circuit (12 volt PCM controlled systems)
- Open ground circuit (12 volt PCM controlled systems)
- Short to ground on heater control circuit (On PCM ground controlled systems)