I have found that the turn signal/horn relays don't seem to be lasting very long in my 1977 Astre. The last one I managed to get to last almost 3 months by being very careful about not letting my signals blink more than ten times. Eventually the relay stops functioning for the turn signals, yet my horn still functions. If I remove a good relay the turn signals don't work.
I can still activate the signals manually by pressing up/down on the turn signal arm. If I press all the way the light will stay on, but not flash/blink. I don't think that the relay is strong enough for the trun signals.
Has anybody split this relay using a regular turn signal flasher? Or am I barking up the wrong tree...