need info on pulling abs codes for a 2000 monte carlo

You need a scan tool, no other way to do it.

Check carefully which tool you get. Most of the OBD I & OBD II tools don't pull ABS codes. Or, they will just tell you that there is a fault in the ABS system. It may be chepaer to take it to a shop and have them scan it or if you have a buddy that has a scanner. Unless you want to invest a couple of hundred dollars on a scanner.