My boyfriends 06 plate skoda fabia vrs has problems with the electric windows. When he bought it, neither drivers or passenger windows worked. He had a diagnostic, and was told that the motherboards in the comforters had "fried". He has replaced the motors in both sides, and they both work before he replaces the door cards, they then work temporarily (about 5 minutes) after he replaces the door cards, then they stop completely. Fuses are fine. Any ideas please?

Damaged wire that is being caught and splitting?

Thank you we will have a look today!