Conditions for Setting the DTC: P0A01
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The engine control module detects that the temperature difference between the generator control module temperature sensor parameter and the engine coolant temperature sensor is greater than 30°C (86°F).