Q: The ABS kicks in at 10 MPH or less. on 1993 Jeep Grand Cherokee

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The ABS kicks in at 10 MPH or less. It happens every time I brake at slow speeds. If you apply too much pressure to the pedal when the problem is occuring, the pedal goes to the floor, and the brakes will lock up.

All conections, tone rings, and sensors are good.
(1) Answer
possible issue with brake fluid(may need to change). possible issue with brake line(could be collapsed). brake system not getting hydrolic pressure function properly. your sensors telling you to get a hands on inspection at a brake shop. safety issue.