Multiple systems loss

[Tattooed tradesman]

I bought a 2018 eco diesel about two and years ago. last year just before winter hit my parking break assembly broke apart while driving on the highway doing 110km/h. (This isn’t the issue) after taking off the remainder of the assembly, I’ve been losing my 4-wheel drive, traction control, ABS, and cruse control.
It have been quite the inconvenience and nuance

 

[Tremper126]

Check the large plug on the frame rail on the driver side inner frame rail. They get dirty/ poor connections and can cause crazy issues.