73 Duster no brake lights.

Check for power on both sides of the fuses, first

You can get "somewhat" diagrams at MyMopar:

http://www.mymopar.com/index.php?pid=18

http://www.mymopar.com/downloads/1973/73ValiantA.jpg

http://www.mymopar.com/downloads/1973/73ValiantB.jpg


You need to seriously consider picking up up a 73 factory shop manual. There is no substitute. We have some manuals posted, but nothing that new and there were wiring changes after '72