I’ve got a 2018 Model 3 that I’ve upgraded with the new charge port ECU to support CCS. The adapter works fine in EA, but I recently tried it on a Chargepoint station and while the station recognized the car, it wouldn’t start charging. Said there was some kind of problem.
Station worked fine with the CHAdeMO cable and adapter though.
Is there a thing with Chargepoint and the CCS adapter? Or could there be something with my ECU upgrade?
I don’t have an answer for you, but can say I’ve used the official CCS to NACS adapter with a 2022 Model 3 on multiple Chargepoint Level 3 chargers successfully. This 2022 came from the factory with CCS support however instead of a later retrofit.