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

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

#181

Post by Reason077 »

AbanoubRodolf wrote: post #167
jordanb wrote: post #138

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]

> "Tesla is the same pattern applied to consumer vehicles"

It really isn't. Unlike John Deere, Tesla is actually pretty good on right-to-repair. All of their technical and repair manuals are available for free to anyone. The service/diagnostics software ("Toolbox") is also available to anyone, albeit for a (not entirely unreasonable) fee.

(There is also a service mode built in to the car which can do many basic diagnostics for free)

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

#182

Post by stolsvik »

colechristensen wrote: post #121
bluGill wrote: post #27

I used to work for a company that made third party scan tools. We had racks of ecus disconnected from the car with just a diagnostic connector and power. nothing got to a real car without first trying it on the rack. I remember on time we figured out a bmw (pre obdii) had the bytes offset from the standard documentation (it was a semi-standard protocol that some other cars used at the time), we went from we communica…

I spent the last week successfully reverse engineering my car / various scan tools to get the right information to diagnose a fuel pump problem (and to do so without the incredible awkwardness of many of the tools) It's pretty amazing what Claude + Ghidra + knowledgable coaching can accomplish. It was basically just setting direction, setting up an incremental workflow with the right kind of documentation, and questi…

You really must be new to this, huh? Expensive software that you paid for?! Claude? Yes, the question is whether you want to share knowledge that cost you literally nothing, and will bring humanity one microscopic step in a better direction - or not, feeling superior in that only you have access to that knowledge. You have a choice!

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

#183

Post by voidUpdate »

> " I needed this because both the computer and a screen were being sold with the cables cut a few centimeters after the connector (interestingly most sellers did that, instead of just unplugging the cables)."

Can't you just solder some extra wires onto the cut off bits, rather than having to try and find a compatible cable? They've left the connectors in, and that's the hard bit, the rest is just wires

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

#185

Post by holoduke »

AbanoubRodolf wrote: post #167
jordanb wrote: post #138

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]

Tesla absolutely does not apply the same patterns as John Deere. Everyone can fix Teslas. Parts are easy to obtain. Never had issues with them. John Deere on the otherhand is the absolute evil of right to repair.

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

#186

Post by rickdeckard »

budman1 wrote: post #98
duskwuff wrote: post #54

Earlier quoted context omitted.

What you're describing is a lab power supply. (The "instantly disarm on short circuit" is overcurrent protection, which is a standard feature.) The name brands like Keysight or Rigol are kind of expensive, but there are a lot of no-name models on Amazon which will do the job well enough.

Keysight == Hewlett-Packard Old School.

Or Agilent, at some point in between

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

#187

Post by hrmtst93837 »

silisili wrote: post #6
LikeBeans wrote: post #3

Very cool. Over a year and a half ago I installed a towing brake controller in my Tesla Model Y. Found the location of the plug, how to access and the pinout online (confirmed via a voltmeter..) so the car's side felt straight forward. But then I needed to find a brake controller that can work with the higher voltage (14.4v vs the normal 12v). Then built a cable from the brake controller to the connector that plugs i…

> But then I needed to find a brake controller that can work with the higher voltage (14.4v vs the normal 12v) Not understanding this sentence. Most running ICE vehicles product closer to that 14.4 than 12v. I think a standard controller would have worked fine?

[flagged]

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

#189

Post by CraigJPerry »

AbanoubRodolf wrote: post #167
jordanb wrote: post #138

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]

>> 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 procedures, a practice as old as the auto industry but they don't rely on them to the same extent as BMW for example. Anecdotally, the special tools i'm aware of are genuinely useful - for example, the tool for disconnecting seatbelt anchors saves time vs the traditional bolt - where special tools on other marques are often clearly to workaround a failure of packaging or engineering resulting in tight access for a regular tool.

Their online API access is a little bit annoying, or at least unfriendly to casual home user, specifically the workflow to register an OIDC client, but not insurmountable.

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