Does anyone have any clues as to where we can get our hands on a wiring diagram for our Xantia V6 auto.

Maybe someone has had this problem before - problem is the temp and STOP lights come on and stay on although the temp is normal and the car is not getting hot. The warning light temp sensor was replaced and made absolutely no difference.

car is sitting in the auto electrics and the sparky has been trying to find info on the wiring layout with no luck so far

anyone know please?