AJ I had the same stop light problem a year ago. I went to Prevost Mira Loma to have it checked. They replaced a square clear plastic circuit breaker in the panel above the engine. I am not sure it is called a circuit breaker. There are 3 or 4 of them in a row inside the rear panel. I am not sure but I think they replaced the second one from the right. Whatever this part is called, it is plugged in with a retainer to keep it from comming out. Hope someone jumps (JON) with better info. Darrell