Every time I hit the breaks the abs kicks in. Why is it doin this? on 1990 Subaru Legacy

At first just my break light and abs lights were on. Then i began to have problems with breaking, they just weren't very strong any more and sometimes when i would hit the breaks the anti locks would kick in. I replaced the pads and rotars and the break light went off and they had plenty of breaking power ask expected. But the problem with the abs kicking in when i brake is getting worse. Now every time i hit my brakes the abs kicks in. Why is this happening and how do i fix it?

by in West Chicago, IL on November 30, 2010
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2 answers
ANSWER by , November 30, 2010
If there is a fluid leak or ad accumulator the ABS pump will run all the time or very frequently. The on board ABS computer can identify 11 different faults, if the light flashes 3 times it is a code 3 if it flashes 12 times it is a code 12, each code number refers to a specific test procedure for a particular component in the system. The ABS light must be on after a drive, do not switch off the key prior to getting the code stored in the computer, if the key is turned of the codes erase. Computer is under passenger front seat. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info or there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.
ANSWER by , November 30, 2010
put on computer yo get code to repair