Bank 1/Sensor 1
- Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
- Disconnect the heated oxygen sensor connector.
- Lift the vehicle.
- Remove the rear under cover (A).
- Remove the RH front muffler.
(Refer to Engine Mechanical System - "MUFFLER ")
- Remove the heater protector (B) from the catalytic converter after removing the bolt (A).
- Remove the heated oxygen sensor (C) with the spanner after lifting the heater protector (B).