CAT ET3 Truck Diagnostic Tool




CAT ET3 Wireless Adapter III 2019A Truck Diagnostic Tool

CAT 3 Communication J1939 ET3 Heavy Duty Scanner

Communications Adapter 3

Firmware Version : Adapter III, replacement of Adapter II  Software Version :2019A

Fast USB  or Wifi communication

Compatible Vehicle:



Air Compressors

Ships Marine

Drilling Rigs

Support Multi-Languages:English, Chinese, Danish, French, German, Italian, Japanese, Portuguese, Russian, Spanish


Communications Adapter 3 is the latest generation of the Communication Adapter group, and replaces the Comm Adapter II. This is the only recommended communication device for ET 3 and the only data link device that will allow you to properly communicate with a CAT engine on dual datalinks. This function is needed for some ET (Electronic Technician) functions.

Communications Adapter III Feature:

1. Communication Adapter3
2.Allows communication between service tools and engine controls using various data links such as J1939/11, DeviceNet
(future release), CT DataLink, and J1708 (ATA) vehicle networks;
3.Flash program allows adapter firmware upgrades as additional features become available;
4.Uses J1939/11, high-speed data link (part of ADEM III controls), substantially reducing flash times;
5.Automatically selects J1939/11 when flashing the engine (reduces the flash time approximately 80%, from 14 minutes to 3 minutes).

Communications Adapter III Function:

  • ECM Summary screen lists every control module on tested vehicles full read out on modules, live data parameter showing for example
  • RPM , boost, pressures, temperatures as wells as other data
  • Full electrical test of all wiring and sensors
  • Remote access
  • Records time and frequency of intermitted errors“ET Trainer” is now included in ET Program.

It allows Users to train and practice using ET without a Communications adapter or Electronic Control Module (ECM).

included in Communications Adapter III Package

1pc x Comm Adapter III
1pc x CD for installing the drivers
1pc x USB Cable
1pc x J1939/J1708 Cable
1pc x 6+9pin Cable
1pc x The main line
1pc x WIFI adapter


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