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How to fix the CAT ET SIS error #142 - requested baud rate is invalid


This means you have communication error between your CAT II / III adapter and the CAT ET Sis software setup. Usually it is a simple fix.



- In the CAT software go to UTILITIES => PREFERENCES =>COMMUNICATIONS

- CHOOSE: CATERPILLAR COM ADAPTER II

- CHOOSE under PORTS: COM 7 and Click "OK"

- Restart the computer and usually that is all you need to do.





But if the above steps do not work, then your CAT II / III adapter is setup on a different COM PORT. In which case watch the video below on how to find which com port your CAT II / III (317-7485 or 317-7484) adapter is using and match it with the CAT ET SIS software to fix the CAT #142 error message.




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