abs light on?

Hey guys my brother jsut bought a 94 Vigor GS and his ABS light is stuck on, any ideas what the prob is and how to fix it. Any help would be appriacated THANKS.

Under the passenger side glove box area (near console) there is a two pin connector. Short this out and turn the key to on (all lights on dash, but do not start car). ABS light will flash codes to you. Do a search on web for Vigor engine codes. You probably have a bad wheel sensor..