I've been fixing some stuff on my 73 Duster, one of the things not working was the pass side rear turn signal. Anyway, starting from the rear i tested the wiring all was good i pulled the connector block apart, tested for continuity, even ran a jumper wire from the dash side green wire and had the turn sigal working. Then i pulled the steering wheel off and checked for continuity on all the wires on the switch itself. Everone sounded out except for the brown wire which feeds the faulty one. The strange thing is, i inspected the wire from one end to the other and i cant see any damage whatsoever ?
Mick