PLYMOUTH NEON EXTERIOR LIGHT

I Cant Get My Brake Lights To Work. I Changed The Bulbs And The Fuse And They're Still Wont Come On. All The Other Lights Work.

Electrical Problem 1997 Plymouth Neon 100k Miles Approx 10 To 15 Mn After Turning On The Headlights They Start To Blink On And Off.

Brake And Back Up Lights Will Not Work. Checked All Fuses And Good. Replaced All Bulbs With 3157 And Still Does Not Work, What Else Could...