Looking to buy new brake pads for my 2003 Pontiac Vibe Base model however I am stuck at this option: Power Front Disc and Rear Drum, 4-Wheel ABSPower Front Disc and Rear Drum, Non-ABSAnybody know the answer? How can I tell? I tried to turning the key and leaving it on w/o starting but I see no ABS light pops up... Thanks!