1994 mustang v6 manual trans. With head light switch in parking light position only front marker lights come on. Rear running light, license plate lights, and rear side markers are not on. When main switch is pulled all the way out, head lights, front markers are on. Nothing on the rear of the car comes on. Dash lights work in all positions. All emergency flashers work correct. Brake lights work fine. All turn signals work fine. From what I can tell that should eliminate a ground issue…...

94 mustang rear running lights not working