Live data from Hacker News

Running Tesla Model 3's computer on my desk using parts from crashed cars

bugs.xdavidhu.me

321–330 of 356 posts

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#321

Earlier quoted context omitted.

>> Tesla is the same pattern applied to consumer vehicles No i'd push back on this because the entire workshop manual is available for free without even registration required. You can literally google and land in the relevant sections and it is of a far higher quality than ford, VAG or bmw as three examples i'm pretty familiar with. I haven't seen the John Deere stuff. Tesla does have "special tools" for some repair…

> No i'd push back on this because the entire workshop manual is available for free without even registration required That's because they were forced by Massachusetts expansion of Right to Repair laws. Before that in 2021, service manuals were withheld and required $3,187 a year or $371.88 a month to see them. Before that in 2018, it was $100/day to view them. Before that, you had to pay and book an appointment and…

[flagged]

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#322

ECU software development is sort of my day job. If you're going to go down this path, I seriously recommend getting the specialized plugs and connectors and making your own wiring harnesses to whatever size you need. It's absolutely easier than manhandling a full wiring harness or cutting one down. Cheaper, too.

The author mentions not being able to get the connector in single digit quantities, seems pretty specialized.

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#323

Earlier quoted context omitted.

> No i'd push back on this because the entire workshop manual is available for free without even registration required That's because they were forced by Massachusetts expansion of Right to Repair laws. Before that in 2021, service manuals were withheld and required $3,187 a year or $371.88 a month to see them. Before that in 2018, it was $100/day to view them. Before that, you had to pay and book an appointment and…

[flagged]

If Tesla making the service manuals free is due to the Massachusetts right-to-repair law, then how do other manufacturers (eg: Ford) still get away with not doing so?

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#324

Earlier quoted context omitted.

> Tesla treats the firmware as licensed software This would be okay if there's a way to reject the license and install my own firmware.

You'd be required to jump through the hoops to get your custom firmware approved by the necessary regulatory bodies, just as Tesla did for theirs. It's not really feasible for a private owner, so I can see why it's not offered as an option.

If I can buy purple headlights at AutoZone, then I should be able to swap out my car's firmware.

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#325

Earlier quoted context omitted.

[flagged]

If Tesla making the service manuals free is due to the Massachusetts right-to-repair law, then how do other manufacturers (eg: Ford) still get away with not doing so?

I don't think there's a requirement that they give access for free but they are alone i think in doing so.

Here in the UK (where i also have free tesla repair manual access) i have to pay a daily rate (there are annual subscriptions available) for other marques and i would say it's not cheap.

For example, ford charges me £20/hour or £75/day for access to manuals, wiring diagrams, online connected diagnostics (which sounds more impressive than it is, the UI will show vehicle status like fuel tank level or error codes reported by the various ECUs, without physically connecting to the vehicle, i.e. it's done over the vehicle telemetry link), and the ability to connect via a data link connector device for diagnostics and some reflashing activities. Security activities like key coding require a further (chargeable) registration).

The same setup is available by at least VAG, BMW and Fiat Chrysler (the latter has an annoying extra device registration step the others don't). All chargeable.

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#326

Earlier quoted context omitted.

> Researchers who find at least one valid “rooting” vulnerability will receive a permanent SSH certificate for their own car It feels like this is something you should get by being owner of the car, and not have to do free speculative research for the manufacturer to get it.

[flagged]

own the software means access to source code, not being able to modify your car.

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#328

Earlier quoted context omitted.

Four 9/11s worth of people die every year from drunk driving. If we can't even get that under control, I don't see why being able to modify your own car is a big deal.

Isn't this largely a US problem? Enforcement is abysmal for stupid reasons. Courts are reluctant to remove the ability for people to drive because America purposely made itself dependent on cars, and cops are reluctant to actually arrest a lot of people for drunk driving because they tend to be buddies, or worse. You can find plentiful examples of off duty officers trying to get out of drunk driving simply by being a…

I think it was pretty clear I was talking about the United States.

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#329
post #179

Earlier quoted context omitted.

> Researchers who find at least one valid “rooting” vulnerability will receive a permanent SSH certificate for their own car It feels like this is something you should get by being owner of the car, and not have to do free speculative research for the manufacturer to get it.

Normies get scammed on Discord into pasting commands into their browser console. As a pedestrian I prefer for most people to not have root access to their multi-ton fast-moving killing machine.

IMO most of the things people would want to paste commands into their car for are just valueless rent-seeking.

Re: Running Tesla Model 3's computer on my desk using parts from crashed cars

#330
post #264

Earlier quoted context omitted.

Simplest example: a driver could probably disable attentive driving checks by pasting a script in from a web search in a few minutes. Nothing like an inattentive 3750 lbs weapon.

A driver could also install a little machine that turns the wheel slightly at regular intervals, to the same effect.

Which would get you in trouble if you were to be pulled over by the police at any moment.
Post reply on HN