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I noticed the other day that only the outer two tail lights came on when the brake Pedal was pressed (brake lights) and those same two lights worked only when the headlights were on (running lights). The only time the two inside lights worked was in reverse. (Back up lights) Is this normal? For some reason I'm thinking all 4 lights should be on when the brakes are applied and the headlights are on?
1974 tail light operation
