For some reason all my electrical gauges and turn signals stopped working on my 85 GS. This is including the shift up buzzer and the row of warning lights but when I turn on my headlights the gauges are still backlite. So to clarify the speedometer still works but pretty much nothing else.

 

did you check your fuses? what you mention not working are all on the same circuit,backlights for guages are on different circuit and speedometer is mechanical driven via a cable.and Ill guess that interior light (DOME) still works..