Conditions for Setting the DTC: P1112
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
The ECM detects that the IAT sensor is greater than 149°C (300°F) for greater than 20 seconds intermittently.