A no start condition may result from swapping an ECM or other module from one vehicle to another if the vehicles use the Global Architecture electrical system (Global A). Global A vehicles include 2010-2011 LaCrosse (U.S. and Canada), SRX, Camaro, Equinox, Terrain, and 2011 Regal and Cruze.
Swapping ECMs or other modules (including the BCM, EBCM, SDM, ECC, and IPC) on Global A vehicles will result in damaging both controllers and a no start condition will occur in both vehicles due to the new vehicle security code protocol (environment).
An overview of the Global Architecture electrical system and more information about the consequences of swapping modules was highlighted in the February 2010 edition of TechLink.
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