Federal

HEATED OXYGEN SENSOR CHECK




<Heated oxygen sensor (rear): Vehicles for Federal>
1. Disconnect the heated oxygen sensor connector.
2. Make sure that there is continuity [11 - 18 Ohms at 20 °C (68 °F)] between terminal 3 and terminal 4 on the heated oxygen sensor connector.
3. If there is no continuity, replace the heated oxygen sensor.

NOTE:
1. If the scan tool does not display the standard value although no abnormality is found by the above mentioned continuity test and harness check, replace the heated oxygen sensor (rear).
2. For removal and installation of the oxygen sensor, refer to Exhaust Pipe and Main Muffler.