Hi, I have a 914 with the 911 cluster and sb 350 conversion. What is the top red light in the oil/temp gauge that has a B in a circle for? It was blinking. This was after driving and noticed my brakes were acting like my calipers were sticking. When I got where I was going the brakes acted fully applied and it wouldn't roll at all like the emergency brake was applied but don't even have one. I did recently replace the master cylinder and have a full pedal. Thanks for any advice!