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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1178 (Climate Control System - General Information) >> Description And Operation >> Climate Control System - System Operation and Component Description >> Component Description >> Ambient Air Temperature (AAT) Sensor

Ambient Air Temperature (AAT) Sensor

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

The Ambient Air Temperature (AAT) sensor is an input to the PCM. If the temperature is below approximately 0 °C (32 °F), the PCM does not allow the A/C compressor clutch to engage.

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