Right... I believe he meant current codes. If the check engine light did not blink while it was jumped, then there are no codes to be displayed, but if the abs light stays on while driving and the ecu still does not blink any trouble codes check the following:

1.Loose or poor connection of the wire harness at the ABS conrtol unit.
2.Faulty ABS B2 (15 A) fuse in the fuse relay box under the hood.
3.Check for an open circuit in White wire between the ABS (15a) fuse in the fuse relay box under the hood, and the ABS control unit.
4.Check for an open circuit in BLK/YEL wire between the No. 9 R/C MIRROR (15 a) fuse in the under-dash fuse/relay box and ABS control unit.
5.Short circuit in BLU/RED wire between gauge assembly and ABS control unit.
6.Open circuit in Wht/BLU wire between alternator and ABS control unit.
If the problem is still not found, substitute a know-good ABS control unit and recheck to see if the ABS light still stays on.