Hey guys. Do you know if a failed master pump would cause these symptoms... the dashboard has all the lights to the abs system lit up. BRAKE VSC and others I can't remember right now. The car had been sitting not being used for over a year. I jumped it and all seems ok but brake is hard to push and has a continuous beep also. Pretty sure the battery is low on charge. And forgot to mention it's a 98 GS400. Can you guys provide some feedback.