Requirements
171-4400 – Caterpillar Communication Adapter II Group on www.cnautotool.com
Included in this group is the following equipment:

Optional Cables:

Instructions

To connect the Caterpillar ET to the PC, perform the following steps:

Step 1 Align and attach one end of the PC cable to the PC cable connection on the Communication Adapter II.

Step 2 Connect the other end of the cable to the communication port of your PC.

To connect the Communication Adapter II to the data link, perform the following steps:

Step 1 After you have connected the Communication Adapter II to your PC, connect one end of the data link cable to the data link connection on the Heavy Duty Diagnostic tool Caterpillar Electronic Technician.

Step 2 Connect the other end of the data link cable to the service connector on the product you wish to test. If the data link is powered (machine power is on), the Power light on the Communication Adapter will glow and the diagnostic test will begin. The lights on the front of the Communication Adapter II will sequentially glow from the bottom to the top of the device. You are now ready to start the service tool.