One of the issues I’ve had in the past, but the community quickly solved, was that my vehicle had a port, but used different parameter IDs than an ICE vehicle would. And those IDs weren’t really documented, obviously. So while it provided values for the emissions and trouble codes required by regulation, they were obviously not useful. The values you would want were manufacturer specific, which every manufacturer uses differently.
It’d be acceptable to me if the manufacturers provided the necessary definitions to scan tool manufacturers, much like they do for ICE vehicles. But the perfect solution would be a requirement to publish the definitions and any necessary formulas for any vehicle sold in the US, retroactive for all vehicles already sold as well. There would be some hard lobbying against that effort, but it would be a HUGE win for consumers and repair shops.
One of the issues I’ve had in the past, but the community quickly solved, was that my vehicle had a port, but used different parameter IDs than an ICE vehicle would. And those IDs weren’t really documented, obviously. So while it provided values for the emissions and trouble codes required by regulation, they were obviously not useful. The values you would want were manufacturer specific, which every manufacturer uses differently.
It’d be acceptable to me if the manufacturers provided the necessary definitions to scan tool manufacturers, much like they do for ICE vehicles. But the perfect solution would be a requirement to publish the definitions and any necessary formulas for any vehicle sold in the US, retroactive for all vehicles already sold as well. There would be some hard lobbying against that effort, but it would be a HUGE win for consumers and repair shops.