The air temperature sensor monitors the temperature of air entering the intake manifold by means of a thermistor. This thermistor is integrated within the air flow meter on L type systems and located in the intake air hose just downstream of the air cleaner on D type systems. It has the same resistance characteristics as the water temperature sensor.
This sensor has a two-terminal electrical connector attached to either end of the thermistor element.
The air temperature sensor and ECU are wired as shown in the diagram. Resistance and voltage signal characteristics are represented by the accompanying graphs.
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