Federal

REAR OXYGEN SENSOR TEST (FEDERAL)

1. Disconnect the heated oxygen sensor connector.




2. Make sure that there is continuity [4.5 - 8.0 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).