P0131 OBD II Trouble Code Oxygen O2 Sensor Low Voltage (Bank1, Sensor1)

Symptoms of P0131 OBD II Trouble Code

  • Faulty o2 oxygen sensor
  • Short to voltage on O2 signal circuit
  • High resistance or open on O2 signal circuit

Common Causes of P0131 OBD II Trouble Code

  • Replace faulty sensor
  • Repair short, open, or high resistance on o2 signal circuit