The title about says it all. I have a 2001 Jetta with 85kmi and at odd times my ABS and traction control warning lights come on, along with my brake light, which flashes, and I get three beeps. This repeats. It almost seems like it's triggered by shifting, although once it happened when I was parked and just before I turned the car off.
There doesn't seem to be anything wrong with the brakes. My rear pads were kind of worn so I replaced them and bled the system, but the problem is still there. Any ideas?