My Sportage has suddenly over past 3 months started locking front brakes up on 2006 Kia Sportage

It comes to a complete standstill..first time..undid battery cable to let computer reset itself..it has started doing it about once every ten days..took it to repair shop n replaced the brake switch light..it was fine bout a week & again doing same thing..no codes to computer..any ideas..repair guy wants to replace ABS module for almost $2000..I simply cant afford that & he says he's noy sure that will resolve problem...

Asked by for the 2006 Kia Sportage
2 answers 1 comment
I' was going to say it was abs module
Next time it does this unplug vacuum hose from brake booster to see if brakes release,, possible booster problem. REATTACH HOSE after test!!!
Good idea, I wasn't even thinking ,try that with the air...