My abs light & warning sound have been going off. Dealer indicates an internal short requires whole assembly ("brake booster assy.") be replaced as whole brake system will shut down soon. Price they quoted for part & labor is $1900, which is mostly for the part. They indicated I might be able to find the part cheaper on eBay. I find what appears to be a range from $77-$1100, but I don't really know if this is what I'm looking for. Is anyone able to confirm that these parts are the same thing (obviously, I like $77 better than $1100) & are in fact what I should be looking for? OK, apparently I can't post hyperlinks yet, but I searched eBay for "2001 Prius brake booster." if anyone can shed some light on this for me, I'd really appreciate it. Thanks!