problem with ABS

I am trying to figure out if you can fix an electrical problem with the ABS. I have a short with the fuse for it and it also affects my speedometer and odometer. I was told that it was most likely the Brake Module, whatever that is, and I need to know if it is fixable or what? This problem already cost me a battery and starter, and I don't want to replace anything else.

Let's check what the computer thinks,
Jumper the top right hand hole on the Assembly Line Diagnostic Link on the lower dash near your right knee (ALDL) to the bottom 2nd from the left hole then after turning on the ignition switch on...count the ABS flashes. 2 flashes then a pause then 1 flash is a code 21.
Give it a try then report your findings for discussion..