New here, and here because I have problems

We have a V plate 1.6 JX 3 door Vitara, which we bought last November as we live on the side of a hill in Wales, so wanted to be able to get around easily in snow/heavy rain etc.
Love the little thing, great fun to throw around the lanes(when it runs) even if it doesn't have a huge amount of power.
My main issue to start with is I have no wiring/service documentation at all so if someone can point me in the right direction that would be great.