Conditions for Setting the DTC: P0137
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the sensor voltage parameter is less than 50 mV.
- DTC P0137 sets within 100 seconds during the lean test when the above condition is met.