Posted by Brendon-KS on July 08, 2021 at 05:32:24 from (72.214.204.139):
In Reply to: Re: Right to repair. posted by MarkB_MI on July 08, 2021 at 03:06:52:
The machine I'm responsible for from the engineering side goes a step beyond just publishing the diagnostic trouble codes, we display them right there on the machine's monitor and give a plain English (or whatever language the monitor is set for) description of what it is. There's also a chronological list of past DTC's that is stored in non-volatile memory along with a count of how often each has occurred. This allows you to look up a DTC that flashed on the screen so briefly that you didn't get a chance to read it. But, as you say, the source code for the machine's control software will never be available. When the buyer purchases the machine they are buying the compiled software - they are not buying the un-compiled source code. It's no different than the fact that the purchase of the machine doesn't give the buyer access to all my development work that went into making the final mechanical design what it is. They are buying the final product and that includes the compiled (and thus un-changeable) software that controls it.
True, anyone with a torch and welder can modify the mechanical portion of the machine all they want (it's their machine, after all) but that history is easy to see in the event of product liability or warranty issues. This wouldn't be the case if a controller is flashed with modified software - the original software could easily be re-flashed following an unfortunate incident caused by a rogue programmer and the manufacturer could have a hard time proving it wasn't their fault. I know very well how complicated and intertwined a machine's control software can be and it would be impossible for an outside person to dive into the source code and start making modifications without screwing something up with potentially dangerous consequences. Virtually no software packages that you buy are open source and the machine control software that comes with your new farm equipment is no different.
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