[steve1956]

Thanks vanish for that not sure if ive got the right one mind. Is the switch more or less in front of you when you open the bonnet off to the right a black plastic cover protects the two wires in. it has a metal ring surrounding and a large nut beyond. I assumed this was the one checked the two wires by bringing them together through a meter both in and out of reverse open circuit showed. My first attempt in reverse started to smoke at an earth point however the wires at the switch are partly bear maybe i touched somehow the two together if i did mind surely it would only complete a circuit? Have i got the right switch help vanish or someone