Hi

Having been delighted to get my 1983 110 V8 CSW through its MOT with flying
colours a couple of weeks ago, I was a bit surprised when the rear fog light
came on yesterday and refused to go off unless the headlights were also off.
I have isolated the switch, but to no avail - it appears that a live feed
has found its way onto the wiring feeding the fog lamp and dashboard
indicator.

I have had the wiring at the back appart to investigate and found that it is
a real mess - it appears that when a previous owner wanted to fit an
auxillary towing socket, he simply cut off the existing wiring and added two
new sockets, wiring one of them directly into the loom behind the rear
offside wheel, rather than doing it properly inside the rear cabin. The
original wiring was left in place. Anyway, having said all that, I still
cannot find a live feed connected to the fog lamp (red and yellow wire).  I
am also slightly puzzled as to why there are 2 red/yellow wires in the rear
loom, one of which is of significantly heavier guage than the other.  What
appears to happen is that the heavy guage wire comes out of the loom at the
back, into a connector where the feed to the fog lamp is taken off, and then
the lighter guage wire goes back underneath the body, where it is spliced
into the towing socket wiring as well as disappearing back into the loom,
appearing to go back towards the front of the vehicle. Both red/yellow wires
appear to be a part of the original loom.

Any thoughts/suggestions much appreciated, as I am a bit stumped!

Regards

Neil