Total failure Please help

Hello dear community, I’m new here and unfortunately bring a big problem with…. My car Saab 9-5 Built 2000 2.3T Limousine suffered from the trunk cable break, which ensures that the tailgate could not open electrically, as was the return light without function. The cables were reasonably extended and insulated -> now the trunk is in full function. The fuse for the return light (15th strength) has flown, this I had replaced. A short time later it is wi now I have the big problem…. BLINKER, SCHEIBENWISHER, ALL FENSTER HEHBER, STECKDOSE 12V, TEMPOMAT and SPIEGEL are without function!! The flashers work on warning flashing light or when open and close only when blinking not…… The car has no error message, all other few consumers work (radio, climate and standing light, dipped light etc…. A new fuse for the return driving lights f but is NOT out anymore and all other fuses are complete (pulled and checked for break) Do I now have a control unit, which is responsible for the components killed? I ask for your help, Google is helpless and I am now too.. … I would like to thank anyone who reads this and can help me Greet Alex