I have to do it without the BCU and just ON/Off is good enough for Lo-beam, Hi-beam and DRL.
the only thing i don't understand is; i put 12,2V in the connector on one pin, second pin =GND, third pin gives me 11,4V back, fourth pin gives me 11,3V back and the fifth pin gives me 0,2V back while DRL left and DRL right are in serial 41,2V!! and is together with the Lo-beam in the 'ON' position.
Hi-beam is in the 'OFF' position and there are no switches and bcu at all yet!
All 'OFF' is not so difficult but now DRL 'OFF' or Lo-beam 'OFF' or Hi-beam 'On', I realy don't know.