Hi, My 2005 Tucson brakes can operate via the ABS without pressing the pedal. This can happen when the key is turned or driving down the road. ABS light turns on, then TCS OFF light, then 4WD SYSTEM WARNING light. When all 3 lights are on the ABS is disabled and the car drives well, the intermittent brake operation no longer happens. I have fitted another yaw / G sensor, but no difference. Do I need to visit Hyundai to get ABS codes read? Thanks!