Oxygen Sensor: Locations

Component Locations Overview

Oxygen sensor electrical connectors (on vehicle floor)





1 Heated Oxygen Sensor (HO2S) (G39) (in front of catalytic converter) black connection
2 Heated Oxygen Sensor (HO2S) 3 (G285) (in front of catalytic converter) brown connector

Oxygen sensor electrical connectors (at top of transmission)





1 Gray Oxygen Sensor (O2S) 4 Behind Three Way Catalytic Converter (TWC) (G288)
2 Black Oxygen Sensor (O2S) 3 Behind Three Way Catalytic Converter (TWC) (G287)
3 Brown Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
4 Brown Heated Oxygen Sensor (HO2S) 4 (G286) (in front of catalytic converter)
5 Black Heated Oxygen Sensor (HO2S) 2 (G108) (in front of catalytic converter)
6 Black Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)