Conditions for Setting the DTC
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the HO2S signal voltage increases greater than 2 volts within 40 ms, in 4 out of 6 HO2S heater switch OFF samples.
- The condition exists for greater than 1 second, or for a cumulative of 10 seconds.