I installed a new turn signal flasher in a 79' coupe. The signals were not working before, but the lights would come on. I installed a new replacement flasher, and now the signals work....but now my brakes lights and back-up lights stay on all the time. I have now also lost a driverside headlight, on low beam. has anyone encountered this problem, and is there a fix.....or am I looking at tearing out my dash to start chasing a/multipul shorts??? HEEEELP!!!