I am having a hard time finding information on common causes for this warning light staying on. I believe the reason is that there are few of this system and the relative reliability.

Mine came on and stayed on after spending about two weeks in a parking garage. Doesn't look like I have any leaks in the lines.

Any ideas?

George

Most of the time, it is either the speed sensor, wire, or the accumulator. The accumulator is located under the car in the passenger's side rear wheel area. The sensor is on the diff.