Conditions for Setting the DTC

The HO2S 2 parameter is between 290-685 mV for up to 6.3 minutes during the passive test.
One of the following tests fail:
Lean Intrusive Test
- The PCM detects that the HO2S 2 voltage is more than 290 mV for 11.6 seconds.
- The PCM detects that the HO2S 1 voltage is less than 100 mV.
Rich Intrusive Test
- The PCM detects that the HO2S 2 voltage is less than 685 mV for 11.6 seconds.
- The PCM detects that the HO2S 1 voltage is more than 777 mV.
This diagnostic runs once per trip.