Freelander 2 (LR2) Windows and Door lock not working

Hi,
I need some help. I have the Passenger front Lock and Window not working almost at the same time. Also the rear passenger lock not working. I have changed the window regulator/motor in both doors. I have changed the ECU module in both as well. Still not working. I can open the rear passenger window from the rear, but cannot do same from the driver control module. I am just wondering if all these are linked together? Or is it that they ECU or motor function independently, if maybe one of the used parts I bought are also faulty, like the ECU or window regulator, and that I also need to change the door lock for both. Any advise please?

Maqsood

Front and rear doors windows and locking is controlled from the front door module and they communicate over a private network.

Best bet is to get fault codes read from the body controller and door modules so you can understand what is going a bit better.