Passenger side window not working, no supply to switch

My sons car is now all up and running, and is MOT'd and on the road.

Just a couple of small issues left to deal with

Passenger side window not working. No supply to the switch. I thought it would be a fuse or a corroded fuse but checked, cleaned and cleaned the female connection on fuseboard.

Does the supply loop into anything before getting to the switch? Or am a looking for a broken wire?

02 plate 135 sprint

Check if you have power on the fuse number 5 under steering wheel. If not check if you have,power on the fuse nunber 4. If not then it would be relay that needs changing.

Fuse 4 is fine as it feeds the drivers window , and that working, forgot to actually check id there is supply to the fuse way as I assumed it would be fed dioecy from a busbar on the fuse board. I will check