Generic
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Intake Air Temperature Sensor 1 Circuit Range/Performance

GM
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    IAT Sensor Performance Conditions
Cause:
    Key on or engine running for 2 seconds, then the PCM detected that the IAT sensor input changed 0.3v in 250 milliseconds.