Do all 2002 jeep liberty limited come with abs?

No, not all 2002 Jeep Liberty Limited models came with ABS. While it was a common feature, it wasn't standard equipment on every trim level or option package in that year. To know for sure if a specific 2002 Jeep Liberty Limited has ABS, you'd need to check the vehicle's options list (often found on the sticker in the glovebox or in the owner's manual) or the vehicle's build sheet.