I made the re-wiring according to the following graphs:
The first one is BIT2 and the second is TCU. I double-checked the wiring and even measured if ground and 12v are active at the 54pin connector, but the TCU doesnīt start up.
Iīve been told, that TCUs in euro e46 were used from 2005 on and earlier cars couldnīt be retrofitted. instead i should buy a ULF and would be ready