DTC P0111: Intake Air Temperature Sensor Circuit - Range/Performance Problem: Condition
WARNING: This page is about a different car, the 2003 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0111 is set when variation in intake air temperature is less than predetermined after engine is at operating condition. DTC is also set when intake air temperature is 21°F (-6°C) or less, or 140°F (60°C) or more. MIL is illuminated when Engine Control Module (ECM) detects malfunction during 2 consecutive drive cycles.