Trying to understand my 2019s OBD2 Port

[2019RamInSC]

I am familiar with OBD2 ports. I used to use HP Tuners on my 2000 LS1 SS.

On my 2019 Ram I am using a hardware and software OBD2 port dongle for Weighing my Travel Trailer, hitch and payload..

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It works. Without any additional hardware.

In reading about tuners and other aftermarket OBD2 addons. They mention the need for a by-pass cable.

My question is why does my Weight dongle work without any bypass. Also, does that mean an OBD2 "engine scanner" will work reading codes and parameters without the need for the bypass?? What does the "bypass" cable do?

Thanks for any info.

 

[Mister Luck]

Have you looked at https://www.alfaobd.com/
they have a list of bypass devices with links to distributors

A bypass allows unrestricted use of the OBD connector
in 2018 - 2021 North American RAM vehicles
CAN bus restrictions are implemented upon the communication ports that are not already accessible through owner operator interface EVIC or U connect

 

[2019RamInSC]

Have you looked at https://www.alfaobd.com/
they have a list of bypass devices with links to distributors

A bypass allows unrestricted use of the OBD connector
in 2018 - 2021 North American RAM vehicles
CAN bus restrictions are implemented upon the communication ports that are not already accessible through owner operator interface EVIC or U connect

Thanks for that info. Will check it out. Sorry did not see your post before now.