Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The HO2S 2 is between 286-703 mV during the passive test.
One of the following tests fail:
Lean Intrusive Test
- The PCM detects that the HO2S 2 voltage is more than 286 mV for 14 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 703 mV for 14 seconds.
- The PCM detects that the HO2S 1 voltage is more than 777 mV.