Ford 6.4L Power Stroke - IAT2 (Intake Air Temperature #2)

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ElEctrical componEnts
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IAT2 (Intake Air Temperature #2)
• The IAT2 sensor is a two (2) wire thermistor type sensor.
• The IAT2 sensor changes resistance when
exposed to different air temperature.
• The primary function of the IAT2 sensor is
to provide a feedback signal to the ECM
indicating manifold air temperature.
• The IAT2 sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The ECM monitors the IAT2 signal to control
temperature by adjusting other devices.