90K 2005 sequioa, has brake light displayed, and other dashboard signs appearing while driving. Dlrship says I need a skid control computer, $650 for part. Why did this happen? could it just be a loose connection? never had anything this expensive happen to me on a toyota that's under 100k. Also when I turn a corner while going uphill, the traction symbol appears, and the vehicle loses thrust, as if the vehicle will stall. thanks for any insight!