I seem to be having a slight problem with the interior light on my 04 Octy. I think it happened about a week ago, the darker nights made it more noticable I suppose. Basically when I open the drivers door and passenger as far as I know nothing happens, I c an slide the control over to the middle and it comes on. I can operate the individual left and right manual switches and it comes on but slide the control over to the left, for auto operation and it does not work!

The curb/warnign lights on the doors all work as does the "door open" warming on the dash, anyonr got any thoughts?

It's either the switch in the interior light unit, the Central Convenience Unit (CCU - pin 21) or the brown/blue wire between the two.

You've eliminated everything else.