where is the abs control module located?

thanks so much,do you know if its replaced will it have to be flashed ive had yes and no's on this question

i can not say with 100% certainty but i believe it's plug and play (no flash needed) what makes you think the anti skid ecu is bad? (abs ecu)

thanks again for your help!the cars abs kicks in sporadically upon taking off real slow,we've performed drive test diagnostics and all speed sensors are in sync equal readings as it speeds up and down,when the problem occurs all speed sensors spike evenly,checked ohms on wires they seem whithin specs and even cleaned sensors but problem still persist! anything else i should be checking?,oh yea visually inspected front tone rings no chips or irregularity spotted,havent checked rear yet! r u out there?