CHANNEL 7Y4104 - Caterpillar

Dual Data Link Communications (If so equipped)
When the connection of the communication adapter is complete, observe the communication adapter and Cat ET. Certain applications require that dual data link communications be established to perform various test procedures. These tests will be listed in the "Diagnostic Tests" menu, some tests may not be available (grayed out). If there are diagnostic tests that are unavailable in Cat ET, ensure that your service tool is communicating in dual data link mode.Use the following indicators to confirm that Cat ET is communicating on dual data links:
"J1939" indicator is flashing
"Cat Data Link" indicator is flashing
Cat ET is not displaying "Service tool support is limited"Refer to Troubleshooting, "Electronic Service Tool Does Not Communicate" if the "J1939" indicator and the "Cat Data Link" indicator are not flashing. Both indicators will be flashing during dual data link communications with the ECM.Communicating with the Wireless Communication Adapter (If so equipped)
Table 6 lists the optional hardware that is needed to connect Cat ET by using a wireless connection.Note: Some applications cannot use a wireless connection. Also, a dual data link cannot be used with a wireless connection.
Table 5
Optional Hardware for the Use of Cat ET
Part Number Description
N/A Personal Computer (PC)
Illustration 2 g02342942
(1) Personal computer (PC)
(5) 261-4867 Card (PCMCIA)
(6) 239-9955 Communication Radio Gp
(7) 259-3183 Data Link Cable AsNote: Items (5), (6), and (7) are part of the 261-3363 Wireless Communication Adapter Gp.Note: The 261-3363 Wireless Communication Adapter Gp was canceled and replaced by the 349-1206 Radio Kit. However, the 261-3363 Wireless Communication Adapter Gp can still be used.Use the following procedure to connect the wireless communication adapter for use with Cat ET.
Remove the electrical power from the ECM.
Ensure that the