Home > Fuse and Ground Diagnosis How to Test Brake Light Ground Wire When Only High Mount Stop Lamp Works The request was rejected because it was considered high risk Get Started ‹ Previous ArticleWhy Brake Lights Dont Work but Third Brake Light Does Fuse and Ground DiagnosisNext Article ›Blown Brake Light Fuse: Lower Lights Out but Third Brake Light Still Works Related Posts Why Brake Lights Dont Work but Third Brake Light Does Fuse and Ground Diagnosis Blown Brake Light Fuse: Lower Lights Out but Third Brake Light Still Works Corroded Ground Connection Causing Rear Brake Lights to Fail High Mount Light Okay Brake Light Switch Ground Circuit Diagnosis: No Power to Rear Lights Faulty Turn Signal Switch Causes Rear Brake Lights to Stop Working Testing Turn Signal Switch for Brake Light Circuit Failure Diagnosis