Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. 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 750 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 10 seconds.
- The HO2S 1 is less than 300 mV.
OR
- Rich Intrusive Test
- The PCM detects that the HO2S 2 is less than 750 mV for 10 seconds.
- The HO2S 1 is more than 600 mV.
- Lean Intrusive Test