P0136 OBD II Trouble Code Oxygen O2 Sensor Circuit Low Voltage (Bank1, Sensor2)

Symptoms of P0136 OBD II Trouble Code

  • Faulty O2 sensor leak in exhaust close to O2 sensor
  • Short to voltage on O2 signal circuit
  • Open in circuit resistance caused by corrosion in connector

Common Causes of P0136 OBD II Trouble Code

  • Replace the second oxygen sensor on bank 1
  • Repair open or short in signal circuit
  • Clean corrosion from connector