Hi,
I have not had the time yet to work further on it. But I will let you know when I am achieving any progress. At least I am not the only one struggling with sending and receiving.
I think I will buy an OBD2 simulator wich makes it easier to get a result and I don’t have to get in my car every time.
I can recommend you this video for some advice.
https://youtu.be/L3ufJTFX2v0?si=OISUzcPEOP1tAXQQ
Let me know if you’re making progress…