Rear Oxygen Sensor: Removal

Set the vehicle on a lift.
Disconnect the ground cable from battery.

Fig 1: Disconnecting Ground Cable From Battery
Lift-up the vehicle.
Disconnect the connector from rear oxygen sensor.
- LH side
  
  Fig 2: Locating Rear Oxygen Sensor Connector (LH Side)
- RH side
  
  Fig 3: Locating Rear Oxygen Sensor Connector (RH Side)
Remove the clip holding the harness.
Remove the rear oxygen sensor.
NOTE: If it is hard to remove the oxygen (A/F) sensor, apply spray type lubricant and leave it for one minute or more.

CAUTION: When removing the rear oxygen sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.
- LH side
  
  Fig 4: Locating Rear Oxygen Sensor (LH Side)
- RH side
  
  Fig 5: Locating Rear Oxygen Sensor (RH Side)