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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 747 (Engine Controls - Pinpoint Tests - 6.0L Diesel (99P E-Series & 99P F450/550)) >> Pinpoint Test G: Intake Air Temperature 2 (IAT2) Sensor >> Introduction >> Circuit Functions

Circuit Functions

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The intake air temperature 2 (IAT2) sensor is a thermistor-type sensor with a variable resistance that is inversely proportional to temperature changes. When interfaced with the powertrain control module (PCM), it produces a 0-5 volt analog signal that will measure temperature.

The primary function of the IAT2 sensor is to provide a feedback signal to the PCM indicating manifold air temperature.

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