Conditions for Setting the DTC: P0137
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- The engine control module (ECM) detects that the HO2S 2 signal voltage remains below 78 mV for more than 2 minutes.
- This diagnostic runs continuously.