You will have to buy an ABS scanner and fix the problem or go to a shop with an ABS scanner. The cheapest that will only give codes is $200.00. on ebay.
http://www.ntxtools.com/ OTC3670HD After you click on the link type the number in search. This is a good mechanic quality tool.
I'm sure this isn't what you want to here. You maybe lucky and have a blown fuse this you can check. You can look for the wire to the sensor to each wheel and check if its broken. Some times a ring on the wheel comes off and will cause a light. Normally you can here this. The unit itself they sell rebuilt do a google search a lot cheaper than the dealer.