Windstar V6-232 3.8L (1995)
Ride Height Sensor: Description and Operation
The air suspension height sensor sends signals to the generic electronic module (GEM) through Circuits 427 (PK/BK) (high) and 428 (O/BK) (low).
There are three possible conditions that the GEM interprets from signals from the air suspension height sensor:
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Vehicle is at trim height.
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Vehicle is below trim height.
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Vehicle is above trim height.
The air suspension height sensor is connected to the body above the axle at one end and at the center of the axle track bar at the other end. The air
suspension height sensor gets shorter when the rear of the vehicle lower and longer when the rear of the vehicle raises.
Magnets mounted in the lower slide portion of the air suspension height sensor move relative to the air suspension height sensor housing. This
movement generates a signal that is sent to the GEM through two small Hall effect switches attached to the air suspension height sensor housing.
The signal generated by movement of the magnets determines switch opening and closing as follows:
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At trim height, the switches remain closed and the GEM receives a trim signal.
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Upward movement of the magnets will open one switch to indicate a high condition.
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Downward movement of the magnets will open the other switch to indicate a low condition.