Conditions for Setting the DTC: P0053
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the affected HO2S heater low control circuit is not within a specified resistance range at engine start-up.
- DTCs P0053 sets within 1 second when the above condition is met.