Fuses or Relays

Gents,
I am trying to re-activate the rear hi- vis lights but cannot find a fuse box anywhere to check the obvious, but have located the relay panel by the bonnet release, in my ignorance does my 1989 ATMOS GTA use relays only and there are no fuses? if so which relay should I replace.

Also could you advise on how to acess a workshop manual download, as the one with the car is not complete and guess what the missing chapters are on the electrics.

Thanks

There is a "pinch catch" just forward of the relay cover panel you mention .... just pinch it and the fuse board will hinge down.