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4. After communications are established, press the Select key. The HDT will read
the configuration data and display:
a.
If the HDT reads the configuration data successfully, it will display:
b. If the HDT cannot read the configuration data, it will tell you so.
First, repeat this procedure from Step 1 with the ignition off. If still un-
successful, one-at-a-time disconnect other devices that use the J1708 data
bus, repeating this procedure each time to isolate the faulty component.
5. With the pointer at NORMAL, press the Select key. The HDT will display:
6. Move the pointer to CONFIGURE and press the Select key. The HDT will display:
7. To change the configuration data in the Interface Module, move the pointer to
MODIFY CONFIG and press the Select key. The HDT will display:
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