Golyo

Hello everyone , i have a 5 series 30d touring from 2005 , it has active steering and dynamic drive , last week the active steering and dynamic drive came up as a faulty , i knowed i have got a bad battery so i bought a new one and changed it , the dynamic drive fault from the screen is gone but the active steering is still active and i have now a dsc faulty and my steering wheel is really heavy (like the car doesnt have servo ). I have a k+dcan cable and in insta i have the 00614A(motor position angle not initialised) , 00CE97 (message (total steering angle ,0x0C3) faulty , receiver active steering , transmitter L) , and 00D368 ( no message (LWS steering box ,0xC3) , receiver DSC , transmitter LWS/RAD) What can cause the problem and how can i solve this ? sorry if my english is not good , or if im writing in the wrong topic