Hello Fredi309. First, congratulations for the tutorial. I'm new to the forum, and just like you I'm adding the descent control and the Grip Control, but on a 2008 II. I've already done all the Hardware installation (switches and harnesses), and I've also done the activation, on the BSI via Arduino, but I don't know which "bit" should be changed in the case of the ESP. I have an ESPMK100_UDS module in my car, and below is the reading of Zones 2100 and 2101. Do you know or do you have any document that indicates what each "bit" means, that is, which ones should I change?
2100 05 E4 7F 42 30 7F FF FF FF 00 FE FF FF B8 DE F1 FF FE FE E8 94 12 76 FF 03
2101 05 FF FF FB FF 7F FF FF FF DF FF FF FF FF FE FB FF FE FF FF DD DA 7E FF
Thanks.