Chrysler
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    IAT Sensor Circuit Low Input Conditions
Cause:
    Key on or engine running, then the test started and PCM detected an IAT input of less than 0.157v for 3 seconds.

Ford
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    IAT Sensor Low Conditions
Cause:
    Key on or engine running, then the PCM detected an IAT sensor signal of less than 0.20v (250°F)

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

GM
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    IAT Sensor Circuit Low Input Conditions
Cause:
    DTC P0117 and P0118 not set, ECT sensor input 230°F or less, VSS input over 15 mph, then the PCM detected that the IAT sensor input was 282°F or more.

Nissan
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Intake air temperature (IAT) sensor - voltage low
Cause:
    Wiring, IAT sensor, ECM