Rear

HEATED OXYGEN SENSOR CHECK
1. Disconnect the heated oxygen sensor connector.
2. Check that there is continuity 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 malfunction 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, Main Muffler.