LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1059 (Engine Controls - Pinpoint Tests - 6.0L Diesel (99P F450/550)) >> Pinpoint Test G: Intake Air Temperature 2 (IAT2) Sensor >> Introduction >> Circuit Functions

Circuit Functions

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 Ford RV Cutaway, 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

The 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 measures temperature.

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