this post was submitted on 15 Oct 2025
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With all the infotainment bullshit they've added to cars these days they really could just tell you what the problem is. Still, RTFM.
The challenge there is that there is rightfully an air gap between the infotainment and the actual critical systems to running the car. Sometimes there's a heavily limited data feed that feeds some data one way but generally the two systems are completely separate and cannot communicate with each other so that you can't brick your car by loading a malformed music CD for example.
Pay attention the next time you're futsing with settings and notice how the infotainment is separate from any sensors or settings related to vehicle operation
There's literally zero reason that system couldn't pull and display trouble codes from the control module without breaking anything.
True, but who is gonna go to their car dealers mechanic if you can just read a errorcode.