Conditions for Setting the DTC: P0AB2
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 hybrid battery cooling fan is ON and the outlet air temperature is greater than maximum hybrid battery temperature value by 10°C (18°F) for 9 seconds.