C-Max Titanium 2010: OEM LED Footwell lights never worked
I have a 2010 5-door hatchback C-max (from new in 2011). While giving it a well needed spring clean yesterday I discovered that it has wired-in LED footlights for driver and passenger that I hadn't noticed before, because they've never come on. I removed one of the LED PC boards and confirmed that the LED itself works - a strange orange colour. I then plugged it into its socket both ways (in case the wiring was reversed) but it didn't work. Finally I checked the fuse listings in the manual but there is nothing for footwell lamps.
Can anyone suggest what will make them work - is there perhaps a disabling switch? This seems to be the opposite to most cars, where you simply add the lamp and it works!