Got my unit last year around May.  Tried to read CAS but kept getting a -943 error.  I figured the issue was my solder wiring and I contacted support.  
They were somewhat helpful but did not solve my issue.  I tried to read at least 4-5 different CAS units but none ever worked.  I finally gave up until recently.  I was in a rush to clone a CAS and figured I would try it again.  It didnt work, I contacted support, and we figured it may be the cable.
Long story short it was the cable.  Although the cable past continuty test, it still was not working.  I read on a post here about someone not getting 5 v on the red wire.  So I tested that and that was my issue.  No 5v coming out from the red wire soldered to the board.  Also I had 0V on the wire side all the terminal, although continuity was good.
I ended up installing a jumper wire from the terminal to the terminal. 
Now I can read the CAS module.  Hope this helps someone.
                      Edited by user
                       
2024-01-27T16:43:00Z
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Reason: Not specified