Oxygen Sensor: Service and Repair

Left Side:

REPLACEMENT
Primary Heated Oxygen Sensor (H02S):
1. Disconnect the left and/or right primary H02S connector, then remove the left and/or right primary H02S.
2. Install the left and/or right primary H02S in reverse order of removal.

Secondary H02S:
1. Move the front passenger's seat forward. Pull the carpet back to expose the secondary H02S connector.





2. Disconnect the secondary H02S connector.
3. Remove the wire harness cover, then remove the grommet.





4. Remove the heat shields.





5. Remove the secondary H02S.
6. Install the secondary H02S in reverse order of removal.