Highlander

Hi, Firstly hello all -I have a 2003 Galaxy tdi 90bhp with a lit brake pad warning light....yes I know its checked, shorted the wires at the brake caliper and its still lit :D, I'm after a wiring diagram and to know the routing of the cables...and any other tips (I don't really want to take the dash apart :D if I do - how) I've done searches on the forum and can't find quite what I'm after. Help appreciated Mick ;)