Power comes from the Instrument panel dimming control. It goes thru the " Illum fuse 14" in the IP Fuse Block. You can check for resistance thru the pins D and E of the dimmer switch and see if you read just a small amount of resistance to ground. So, you have good continuity, the ground and lights are probably good. If the ground is good, and the fuse is good, it may be the Headlamp and Panel Dimmer Switch.