my ABS light is on. what does it mean?

CampbellsChunkySoupra

best be eating your soup!
Jan 28, 2007
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Norwalk, IA
www.dragsource.net
does this mean that they are engaged or that there is something wrong? i have a little yellow-orange Anitlock Brakes light lit-up in my dash. sometimes it is on and sometimes its not.

1989 toyota supra turbo 7m-gte if that matters at all.

thanks!

-Tyler