Conditions for Setting the DTC
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
P0A01
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).
P0A02
The engine control module detects that the generator control module temperature sensor parameter is less than -60.5°C (-76.9°F).
P0A03
The engine control module detects that the generator control module temperature sensor parameter is greater than 162°C (323.6°F).