Rear Oxygen Sensor Test

Injector Resistance Check:

1. Disconnect the heated oxygen sensor connector.
2. Check that there is continuity between terminal 1 and terminal 2 on the heated oxygen sensor connector.
3. If there is no continuity, replace the heated oxygen sensor.

NOTE: If the scan tool does not display the standard value although no malfunction is found by the above-mentioned continuity test and harness check, replace the heated oxygen sensor (rear).