Hi, I have a 1997 Town & Country and I have no courtesy lights at all. My fuse is good. I have power to the fuse. My headlight control / dimmer assy is good, according to the continuity table in my haynes book. the lamps are good. but nothing works. no overhead lamps, manually or by doors opening, vanity mirror lights, nothing. Instrument lamps are good and they dim with the dimmer. could it be the courtesy lamp relay? if so, which one is it? the fuses on the junction block are marked but the relays are not... please help