you prolly short the pass. side signals out. + you previously wired the thing wrong for the passenger side. The Dimmer Filament suppose to be the parking light and the Higher Filament suppose to be the signals light. Since you got those 2 backward, It can short out your signals thus make it see as if it DOESN"T Blink at all because the Higher Filament OVERBRIGHT the dimmer one. Try to rewire them to see if it'll make any diff.