Brake noise

Hi Guys

need some advise, Also can someone give me the mech in midrand, Dippies the one who did your clutch I think, want to send the car for a check,

My brakes the front right hand side, when I brake it feels and sounds like the brake pad is worn and grinding on the disk, I open it and it has abt 70% life still, I cleaned it and put it back and still that screetching sound,

any advise,

I was reading on the internet when I read my cars errors that it could be something to do with the abs unit, I cant remember, but I wanna be sure before I go buy parts and replace,