My footwell lights and rear C-pillar lights do not come on, when I open the door. Door panel lights work fine. I did just replace the headlight switch. Any thoughts on the best way to sort this out. I did use a 12v probe to test the socket for power, nada. I also twisted the headlight switch both ways, nada. 
The problem is most likely in the center dash switch. Power to these lights comes through that switch. Here is some discussion on that, along with an easy suggested fix.