I have a VW Polo 1.4 5 Door 2014...
Front window does not work with either switch - Drivers or passenger. Key locks and unlocks all doors, and lock button on drivers door works too, speaker receives sound.
Took it to the garage and they found a j387 fault - no communication..
The thing is I dont have any wiring diagrams for this so wouldn't know where to check..
Any help would be appreciated