How do you change the rear o2 sensor on a o3 Mazda tribute?

To change the rear O2 sensor on a 2003 Mazda Tribute, first, ensure the vehicle is safely lifted and supported. Locate the rear O2 sensor, which is typically found on the exhaust pipe after the catalytic converter. Disconnect the electrical connector, then use an O2 sensor socket or wrench to unscrew the old sensor. Install the new sensor, reconnect the electrical connector, and ensure everything is secure before lowering the vehicle.