But my really Question is, which CAN Messages do I need to send to the Haldex Gen1 to control the lockrate ?
GEN1 Haldex is "self-controlled", it calculates the lockrate on individual wheelspeed (slip), engine torque, vehicle speed as well as actual padel.
It is only influenced by ABS in case of breaking to open Haldex or by steering wheel angle when driving curves
So, no lockrate via ECU or ESC on this early Haldex
Like canChecked. They just send CAN Messages to the Haldex without any ECU to Control it.
Of cause, CAN is multi-master and with a intelligend gateway, it is very easy to make Haldex "think" there is wheelspin. So it will close clutch to get rid of it