California

1. Disconnect the heated oxygen sensor connector and connect the special tool (test harness) to the connector on the heated oxygen sensor side.




2. Make sure that there is continuity [Approx. 12 Ohms at 20°C (68°F)] between terminals 2 (red clip of the special tool) and terminal 4 (blue clip) 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 abnormality is found by the above-mentioned continuity test and harness check, replace the heated oxygen sensor.