I have a replaced DDM from the previous owner. The fob is working correctly, and the indication on the memory control unit is displayed properly however, the memory of the seats doesn't work. No one of the 3 buttons after pressing doesn't change the position of the seat, even in a preset. However, every time when I unlock the car the mirrors adjust at the preset position which I never saved before.
Do I need to program the DDM or do I need to investigate the windows/mirrors module?

 

Did the donor car have same features ? You did not mention does the memory save function work ?

 

1)IDK.
2) Nope, but the indication working like it saved.