Advertisement
a.
If communications are established, the HDT will display:
b. If communications are not established after 2 minutes, and repeat this
procedure starting at Step 1 with the ignition off. If the HDT fails to es-
tablish communications after three attempts, there may be a problem
with the J1708 data bus. In this case, pick the symptom from Chapter 5
that best describes the original failure in the instrument system and follow
the troubleshooting procedures.
3. After communications are established, continue this procedure by pressing the
Select key. While the HDT reads the configuration data, it will display:
a.
If the HDT reads the configuration data successfully, it will display:
b. If the HDT cannot read the configuration data, it will display COULD
NOT READ THE CONFIGURATION. In this case, first repeat this proce-
dure from Step 1 with the ignition off. If still unsuccessful, one-at-a-time
disconnect other devices that use the J1708 data bus and repeat this pro-
cedure each time to isolate the faulty component.
4. Use the Up and Down keys to move the pointer to NORMAL, then press the Se-
lect key. The HDT will display:
Advertisement
