conFUSEing issue

Hi chaps,ok problem,no heated front screen,used to work but now is as dead as a doe-doe !
I took it briefly to a chap who checked and told me that there was no power to the fuses in the supplementary fuse box but the fuses are ok,so i need to know where does the juice come from to power these fuses?
phewwwwwwww first post and i look forward to your positive input,thankyou from me freelander TD4 HSE

Here's a circuit diagram, I would check to see if there's power at the relay from the battery and from the switch, could be a dodgy relay, but aye bit posh having heated wind screen wish I had one.

See if the Relay clicks....That would be my bet

thanks very much guys i will check relay and let you know,thankyou for your help
Edward the diagram will not open it goes to another page,really i need to know just where the relay for the heated front screen is.

Hmm not sure what's up with that its in the electric section on myfreelander. Co.UK has a few wiring diagrams there, not sure where the relay'll live. Be either in the cubby box under the steering wheel or in the engine bay. Either way there should be a picture of it on the fuse box lid.

It was the relay,as soon as i managed to get the case open,i saw the yellow outer skin was partially black,so replaced and i have heated windscreen and rear window,just in time for frosts,thankyou for your help,without this site we would be well and truly stumped,have a great xmas if i am not on here before then,also a brilliant 2014 and do not forget vote UKIPl