Go With God
WARNING; Some 2010 and newer year models, DO NOT install a used or aftermarket rebuilt module
for test purposes.
Starting in 2010 some GM vehicles have Global Networking, see detailed list below.
This new generation network system (Global Networking) has the ability to share and rewrite
what is "called variant configuration files". Variant configuration files include the VIN, power train
options, tire size, etc.
OEM rebuilt modules are blank. During the Programming and Initializing the variant
configuration files are written. On the next key cycle these variant files are shared across the
network and all modules will rewrite their configuration to match.
If a module out of another vehicle is installed for test purposes, on the next key cycle
all modules will rewrite this new VIN and other variant files to match.
GM warns 4 to 6 modules will have to be replaced if this occurs. These "was" working
modules, programming will not salvage them. You will now have several shiny door stops.
List of GM vehicles with Global Diagnostic Networks
Additional vehicles for 2011
Additional vehicles for 2012
Additional vehicles for 2013
All GM vehicles in 2014 have Globel Diagnostic Networking Systems
Critical Information on GM Modules
C& e Auto Tech