I have had the back lighting for the headlight switch going off and on for the last few weeks and finally today had the time to replace the bulb (LED) with a different type and now it doesn't work at all. I checked power between the ground (black wire) and hot (red wire) on the back of the headlight switch and I don't get any voltage at all. All headlights and interior lights work including the dash cluster illumination lighting. Anyone have a good schematic to look at. I've taken a look in my FSM's and it's hard to understand where the headlight switch is since i'm not seeing a black or red wire where it says "headlamp switch". Looking at the headlight switch as seated in the drivers seat the black wire is the furthest to the left in that connector and the red wire is the 3rd from the left. I have already verified continuity from the light bulb socket end to the electrical pin on the back of the switch and all is good there. Need some help guys.