[Leeg27]

Hi, I am new to this forum and would like some advice

I have a 2008 volvo s40 with an annoying issue with the power windows.
All windows can function with the comfort open/close option by holding the unlock/lock button and also same goes for the buttons on the door.
I have recently found a new switch unit which I have installed with no luck.
The drivers side controls don’t work at all even the mirror adjust. The passenger side window functions correctly with the switch and the two rear windows don’t function with the switch. I have checked as much wiring as I can behind the door card in the door hinge and all looks good to me no breaks or damage. I am trying to locate the relay and can’t find any information on them. I would like to add that all central locking works fine too

I’m hoping somebody here can shed some light for me

TIA