Johan H wrote:

Thanks, this was very informative!

Just to make sure there is no misunderstanding; Is the reverse light on a right hand drive car on the right side? Viewed from the rear. I thought of this while the cable seems very grey in colour, I tried even cleaning it with brake cleaner.

If the light is on the left side, then I suppose I need to trace the fog light instead (I suppose LR has used the same cable loom at the rear independently of left or right steering.

Even on LHD cars, the reverse lamp wire is white.   1988 90 Td5 NAS soft top
2015 D90 XS SW

Martin wrote:

It's white at the light, not grey (grey is the fog light).

The output from the switch is supposed to be Orange with a Grey stripe, but I have seen other colours used on Puma looms.

This changes to Green with a Brown stripe at the 14 pin engine connector (towards the back of the top of the left side of engine looking from the driver's seat).

The Green/Brown changes to White at the 14 pin round grey connector on the bulkhead, this is on the engine bay side on the top of the right footwell (again, looking from driver's seat).

However it is available in the cabin as there is a branch up to the instrument pack, again it is Green/Brown. It goes to pin 26 of the instrument pack connector.

Evenin,

at least on my car the fog light is white and the rear light is grey, maybe mine was made on a Monday

You wouldn’t happen to know the color of the cable further towards the front?

Thanks again
Cheers,
Johan

PS. edited out spellcheck errors...