← Back to context

Comment by werdnapk

15 hours ago

A lot of vehicle manufacturers don't even give you access to their repair/diagnostic software even if you want to pay.

Tesla for example lets you pay to access their diagnostic software, so why is John Deere the bad guy here?

Oh that's simple. Both Tesla and John Deere are bad guys.

And yes. I am happy to expand that list to literally every other manufacturer you have in mind. They are all bad guys too. If manufacturers were altruistic good guys, they would need no regulation.

  • If all manufacturers except one were altruistic good guys, the one malevolent bad guy would undercut the altruists and drive them out of business.

    Regulation is the solution to this prisoner’s dilemma.

    • Heavy regulations are the reason why we have the John Deere semi monopoly. The regulatory entry cost is in the millions for any new player to enter the market so no one wants to compete and provide better service.

      13 replies →

When I bought my current car, it came with an owners manual--for free!!

I can grab any data I want from the OBD port. The hardware was cheap, the software to use it is, again, free.

I'm not excited about this brave new world where you have to pay a subscription fee to plug a cable into a device you own and interact with it, and even less excited there are people here defending the idea.

  • You may not be aware but there are a lot of proprietary PIDs on your OBD2 bus you can't interpret without specialized software - you can get like oil pressure and temperature, but not say, shift points or anything the manufacturer doesn't think you should see. True right to repair would mean all of the PIDs get documented and there is a marketplace where I can purchase software or documentation without having to be a certified brand X mechanic.

    • I’m not sticking up for car manufacturers, but at what size or capacity should you be required to document and publish these things? It requires employer time and effort and has a cost associated with it.

      As a counter argument: I was just looking at a small open source utility. As I was going through the code I found cases where certain arguments could be set to magic values that cause useful, but undocumented behavior. Should the developers be forced to document these options?

      I don’t think a manufacturer should be able to lock you out of reading diagnostics on your own devices, or that anyone should be prevented from reverse engineering what those values mean. But I also don’t think there should be any requirement that they are forced to do additional work. That seems just as immoral.

      22 replies →

    • Yes and I'm just pushing back against GP who seems to think gatekeeping that access is a good thing. And it's still way better than John Deere who (according to TFA), when the tractor detects that some wires are disconnected, wants you to pay $195 to find out which ones.

      I'd love to move towards a world where owners can access everything, flash the firmware in the headlamps, etc. But all I can do as an individual is vote with my wallet and avoid the 2020s computers-on-wheels.

  • What you want is the service manual. Owner manual should be implicit. OBD port can work for some cars, for some of the data. But other cars do have specialized gear they require to either access either reset some stuff in some of the car's computers.

    • Yeah the owners and service manuals are two very very different things. You won't be performing much maintenance with the owners manual besides the absolute basics, like checking your oil.

      The cheap OBD2 readers lack the vast majority of data and tools you would want to use for service as well.

      There are aftermarket options but most manufacturers want you to subscribe to their service tools - often charged per monthly plus an additional a fee per VIN it touches. These cost in the hundreds to thousands. It can be pretty frustrating as a shadetree mechanic.

      5 replies →

    • Sadly service manuals aren’t commonly sold anymore and you need a subscription to a website to access factory service manuals.

      It’s a shame, I use to buy the service manual when I bought the car.

    • Reading codes is only part of it. For the last quarter century or so (some manufacturers more than others) if you replace certain components (radio, any computer module) you need to update the ECU to recognize the new component. This requires proprietary software and in many cases proprietary hardware as well. These "features" are marketed as an "anti-theft" mechanism. This renders some repairs basically impossible for the end user to perform.

      The fact that they've been allowed to build systems like that is appalling.

This is actually pretty widespread on newer models. There are cars for which you need a subscription costing thousands of dollars every year to put your parking brake into "maintenance mode", without which you can't fix your own brakes.

Like others have said: Tesla is the bath guy here. I'm pretty sure most people are focused on the other ways Tesla has been fing around that they just haven't gotten this far down the list.

Also, there's something special about tractors. Their owners (farmers) are both willing and capable of repairing tractors, in general, so John Deere is demonized for taking that ability away. Where as Tesla's owners are comfortable not changing their own oil, so "less" was taken away. (Yes, I know Tesla doesn't have engine oil, don't get hung up on that)

  • A tractor - and all farm equipment - is ridiculously expensive, the core platform is not much different from previous generations and they are used by a respected segment of our society to grow us food. All of this adds up to make JD's impact large and feel much worse than the relative nitpicks we have with many car manufacturers.

Because in agriculture you are absolutely expecting to be able to repair stuff yourself.

I work on a project related to it and was absolutely surprised at how the company gave instructions to the clients to help them fix their machines (stuff I wouldn't be able to do myself).

Having a non-working machine can mean big $$ lost everyday.