Hi, sorry for picking up an old thread but wondered if you managed to get this sorted? I have a similar issue with my 1993 Disco 3.5v8. bog standard, was working when last parked up but now won't start. No power after the ignition at all, no dash lights, only sides, hazards and interior lights. 12v at the ignition switch but when turned, it doesnt get any further... Have tested the ignition switch and it's fine. Feels.like it could be an earth fault but all the ones I have found seem to be ok!