Hello all:

I have been searching, and reading, but I have quick question for those on the forums.
What was the time line of the last Cummins ECM that supported a full memory read command, via OBD2 or direct at the ECM?
Was it prior to the RSA security patch that was released by Chrysler in 2009, for the CM2100 ?
I am pretty sure that the CM2200 did not have a means to read out of the ECM, but how was it done to secure the software inside?
Can any of the forum give answers for this? Just looking for some more in depth info, Please and Thanks.
TNX in advance.

crdth