Why don’t EVs have standard diagnostic ports—and when will that change? | OBD-II was implemented to monitor emissions, but EVs don't have tailpipes.
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Why don’t EVs have standard diagnostic ports—and when will that change? | OBD-II was implemented to monitor emissions, but EVs don't have tailpipes.::OBD-II was implemented to monitor emissions, but EVs don't have tailpipes.
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Established manufacturers do, newcomers don't.
Established manufacturers could technically ditch the port on EV models, but they don't because they have other models which are still ICE, so they need it there. Many of the modules are shared between models, so they use the same bus when it's ICE, hybrid, or EV.
And they already have their tools in the hands of their mechanics that they just need to update OTA so they're compatible with their EV cars... Even if gas cars stopped existing, replacing all of that would be too much of a pain to change the plug...