Conditions for Setting the DTC

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

The PCM detects that the HO2S 2 did not transition below 300 mV and above 725 mV during the passive test.
One of the following tests fail:
- Lean Intrusive Test
  - The PCM detects that the HO2S 2 is more than 300 mV for 12 seconds.
  - The HO2S 1 is less than 300 mV.
    OR
- Rich Intrusive Test
  - The PCM detects that the HO2S 2 is less than 725 mV for 12 seconds.
  - The HO2S 1 is more than 600 mV.