The drivers overhead lights and left drivers lamps get power for the LEDs from the circuitry located in the pneumatic bay, below the drivers seat. I am not sure where the salon LEDs receive power, but I would assume it would come from the CCC located in the first basement bay. I am mobile now and do not access to my drawings. I would look at the fuses that installed along the bottom edge of the electronic bay. I bet one of these fuses is blown. This is my best guess without looking at the drawings. Good Luck.