The MADS Smarty ComMod Communication Module unlocks the ECM in the 2013+ models and enables shift-on-the-fly capabilities in your 2010+ Dodge 6.7L Cummins. When installed to Smarty Touch’s under-dash controller, it allows the communication with the ECM over two distinct CAN Bus channels at the same time. The usual OBD II plug / bus and a secondary under hood service bus used by Cummins for the communication with external modules such as the VGT turbo, Oxygen sensors, etc.