Well, the brake failure light came on today while I was pulling into a parking lot. I was not braking hard or anything, in fact I had just slowed down and turned in and hit the brakes, noticed the light came on. Let off the brakes it went off, pushed them it came on. I decided to turn around and head for home, and I also jabbed the brakes really hard to a stop to see if it would come on. No Warning light. It didn't come on again for the short ride home (a couple of stop signs involved). Checked the fluid level, both look really good (full). The fluid is dirty, however, and am contemplating bleeding/flushing fluid. Could a slug of dirt have come through and pissed of the pressure differential warning sensor? I am also going to make sure that wire isn't chaffing (if it shorted to ground, would it come on?)Any other suggestions/ideas? Thanks