How to install and Activation 2018C Version CAT Caterpillar ET Diagnostic Adapter III software?

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How to install and Activation 2018C Version CAT Caterpillar ET Diagnostic Adapter III software?

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


Heavy Duty Truck diagnostic Scanner CAT Caterpillar ET Diagnostic Adapter III Compatible Vehicle: For Trucks, Excavators, Air Compressors, Ships, Drilling Rigs.

2018C Version CAT Caterpillar ET Diagnostic Adapter III software With ET Keygen was unlocked.

Here is the steps to teach you how to install and activation Cat ET SOFTWARE.


1. It is recommended to install the software on the WIN7 system. After installing the x86 or x64 installation files according to the system, run the cat 2018C software “ET 2018C v1.0” to select the language for installation.

2. Run 0-HWID to get the ID.

3. Run “1-Keygen-License-Maker”, fill in the ID to create the “keygen.key” file, and create a new folder in the root directory of the C drive: “FlexLM”, copy “keygen.key” into “FlexLM”.

4. Run “2-Keygen” and fill in the ID to create the “activation.key” file.

5. Drag the created “activation.key” file into “3-Key_Installer” and it will be installed.

6. my computer, right click on the properties – Advanced system settings – Advanced – Environment Variables – New variables under System Variables – new
Fill in:
Variable value: C:\flexlm\license.dat

7. Run the installation license.

If you have problem to install CAT Caterpillar ET Diagnostic Adapter III software, You can watch check this link to watch the video. It will teach you how to install.

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Cylinder Cutout Test using Caterpillar ET Software

How to perform Cylinder Cutout Test using Caterpillar ET Software?

The cylinder cutout test allows one cylinder or multiple cylinders to be cut out. The cylinder cutout test is useful when troubleshooting poor engine performance or a suspected injector failure.

Test Operation:
The cylinder cutout test disables the injector by not providing the injector pulse to the solenoid. The cylinder cutout test can be performed on one injector or multiple injectors at once.

-Connect to CAT Caterpillar ET Software,
-Open Menu: Diagnostics – Diagnostic Tests – Cylinder Cutout Test


-Click Start, then Select Cylinder Cutout Test


-Click Continue, then OK


-Wait until All Cycle Test finished, and look at the Results on Fuel Position tab, the smallest value than the others, indicates that could be damaged on Injector.


1-Cylinder Cutout Test Conditions,
The following conditions must be met for the Automatic Cylinder Cutout Test
1) Engine Speed must be between 980 RPM and 1020 RPM (Engine Speed will automatically adjusted)
2) Engine Coolant Temperature must be 170 Deg F or higher
3) No Engine Performance related active diagnostic codes are allowed
4) No default Injector Serial Number (000000000000) allowed
5) Throttle position must not vary by +/- 5%

If at any time any of these conditions are not met, the test will automatically aborted.
-Ensure Transmission is in Neutral or Electrical Load is removed from Generator.
-Fan cycling, A/C compressor cycling, or changes in Engine Load will invalidate this test.
-If the fan is not controlled by the Engine ECM, please Enable the fan if possible.
-WARNING: If the ECM controls the fan, the fan will be turned ON automatically upon starting this test.
-WARNING: Please make sure the Compression Brake is in the OFF position. During the test, Compression Brake operation will cause the Engine to surge.


Manual Cylinder Cutout Test
-Click on Change – Start – Stop tab, and look at Fuel Position value.