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A comment on I Hacked My Car Guides: Creating Custom Firmware. Parent comment

Re:I Hacked My Car Guides: Creating Custom Firmware by bluGill on Tuesday July 19, 2022 @08:49AM (#32150713)
I would expect the radio to have access to a CAN bus. The same diagnostics tool that uses can to read your engine should also be able to read the radio, and the infotainment should have all the ability to display all DTCs and what they mean.

I would expect all controllers with safety critical functions are carefully firewalled so that you cannot do bad things via CAN.

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Re:I Hacked My Car Guides: Creating Custom Firmware by adolph on Tuesday July 19, 2022 @12:40PM (#32154331)
It depends on what you mean by critical I guess. comma.ai and OpenPilot uses CAN to perform steering, acceleration and braking (I think).

https://github.com/commaai/openpilot/blob/master/selfdrive/c...

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