The Century wagon was only 3 years old with 140,000 miles on it at the time. I don't think age was a factor. We were told it was because the brakes weren't flushed as to why we were having problems with the ABS system flashing the dash light.

Flushing ABS systems in the traditional brake flushing method will NOT work at all.

Flushing them where you haven't done that for oh...10 years or so is not a good idea - the bits of rubber hoses can clog up calipers pretty damn good.