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Have not seen this on other forums but FCA is in the process of adding a Gateway Module to the CAN bus for 2018. Got this off the Dodge LX Forum.

This is from dealerconnect 2018 lx service info
"The SGW module is a Cyber Security hardware device to stop unwanted access and threats to the Controller Area Networks (CAN’s) for the vehicle. The gateway does not contain any drivers, and therefore does not directly operate or control any vehicle components.
The complexity of in‐vehicle networking has led to the development of a variety of bus standards and protocols that are specific to their application domains. The SGW module serves as the information bridge between these communication domains and the diagnostic scantool. Serving also as the vehicle’s central interface for diagnostics and OEM flashing, hardware security features prevent unauthorized network access." "operation" "The Security Gateway (SGW) module is located in the Controller Area Network (CAN) architecture between the Data Link Connector (DLC), Radio Receiver Module (RRM) and Body Control Module (BCM). The main function is to gate messages from one bus to another. It will provide security against certain types of attacks and threats from the service tool or RRM bus to the vehicle. The module gates messages within the CAN-C bus, or the CAN-BH bus. The module contains up to eight dual wire CAN channels that comply with CAN-FD (the module does NOT support partial networking functionality). The module is a frame gateway, it does not provide signal gateway functionality. With the gating there are several criteria that must be met, that is to say the message must be on the allowed list from the source bus. The SGW module prevents threats to the bus systems through the DLC. A secure connection must be present to allow authentication between the SGW module and the diagnostic scantool. The SGW module will then allow the radio to turn ON via the system data bus"
Recently fca is shutting down witech 1.0 and forcing all of us at the dealership to upgrade our micropods to 2.0 , there was a little tidbit on witech about it, cant find it now. The 2.0 pods will support comms with the new security gateway module.​


 

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Discussion Starter #2 (Edited)
OBTW - The guy that develop this mess now works for GM.
Looks like a guy named nazmi sabi (has a linkedin page) developed it then left and went to g.m. , wonder if he will sing about it now that he is no longer employed by fca???
Looks like we are going with canfd, figured we were going with flexray or something similar. I
 

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GM has already encrypted the 17+ T87a TCMs to the point that you have to remove it from the vehicle and modify it before it can be flashed, much like the GPEC2A stuff for DCX currently.

The security gateway on the new Dodges is really only an issue if you want to flash in the vehicle, there's nothing stopping you from removing it and flashing it with a bench harness....currently :)

Things are tightening up for sure.
 

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Companies will have better luck lobbying Washington (like they have been, which is why they've been doing it) that the ECU controlling the car/engine is proprietary and their property and thusly you can't access or **** with it because it's proprietary/piracy/trade secrets/BS/etc.

The other consequence is as they secure the network they make it harder and harder for independent shops to work on cars (which is a goal of theirs as it creates a closed-ecosystem for their dealers and benefits dealer bottom-line margins). This also is a double-edged sword as many dealerships lack technicians with the skills and knowledge to even operate these pre-programmed tools correctly, much less know how they work if something goes wrong and the tool won't work.

We're hitting points now where technicians using tools will input parameters wrong and brick whole modules/ecus - and this will only get worse.
 
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