Join Date: Jul 2005
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Forget the wiring colours. They're totally unreliable.
You can figure out most of the connections simply by examining the bulb holder. As the brake/side light bulb is dual function, you'll still have to check this out with a multimeter or 12v test lamp.
If the fog lights are in the boot lid (I forget on the Lag I estate) then you'll probably find the wires on a multiplug behind the boot liner. Again, you'll need a multimeter or test lamp to confirm. As I recall (it was over a decade ago) the wiring runs up the left hand side of the car. I actually tapped into the loom in the passenger footwell, but with hindsight, it makes more sense to trace it through to the boot.
Currently in Horatio's garage:
2010 Laguna III Initiale.