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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 1with the ignition off. If still un-
successful, one-at-a-time disconnect other devices that use the J1708 data
bus and repeat this procedure each time to isolate the faulty component.
4. Press the Select key when the pointer is at NORMAL. The HDT will display:
5. Move the pointer to CONFIGURE and press the Select key. The HDT will display:
6. To change the configuration data in the Interface Module, move the pointer to
MODIFY CONFIG and press the Select key. The display will vary depending
upon how the Interface Module is configured. Two examples follow.
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