DTC P0070-00: Ambient Air Temperature Circuit: General Description
WARNING: This page is about a different car, the 2023 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature. ECM receives the intake air temperature and ambient air temperature at the same time to precisely control the intake air quantity supplied through the manifold.