User guide

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Wheel Speed Sensor (WSS) Screen
The Wheel Speed Sensor screen allows the technician to record the sensor output as the wheels rotate.
Additionally, there is a sensor air gap field which indicates the wheel speed when the sensor starts
registering speed. A lower air gap speed value (e.g. 3 to 4) indicates a properly adjusted wheel speed
sensor. An air gap speed value higher than 5 typically indicates that the wheel speed sensor needs to be
adjusted by installing the sensor so that it is close to the tone ring — eliminating the distance between the
sensor and tone ring (See the Service Data sheet for wheel speed sensors for more information).
Figure 10
Control Buttons for Graph:
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The Start button will start the data collection
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The Stop button will stop the data collection
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The Rewind button will rewind the data
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The Forward button will forward the data
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The graph display can be a line graph (default), a bar graph or 3D-style
Control Buttons for Wheel Speed:
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The Open button file will open an existing wheel speed file
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The Load button file will load an existing wheel speed file
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The Help button will open the Help page
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The Close button will close the screen