Discovery II (LT) V8-4.6L (2003)
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Ultrasonic Sensor: Description and Operation
Volumetric Sensors
The BCU uses volumetric sensors to detect any change in air movement within the vehicle. There are two sensors located in the headlining of the
vehicle.
Input/Output
The sensors require a regulated power supply of 12 volts, via the BCU. When a change in air movement is detected the sensors generate a 5 Hz pulse
train to the BCU.
Each of the sensors have a dedicated signal input to the BCU. Power to the sensors is supplied by the BCU.
TestBook provides the ability to monitor the real time state of the sensors.
