2000 Mazda Proteg

You might start by jacking up the wheels and trying to spin them by hand, make sure you are in neutral when you spin the rear wheels, if you find one that’s hanging up the next step would be to try and find out if it’s because you have a caliper problem, a brake hose problem, or a caliper slide problem. You would also need to check the parking brake to to make sure there aren’t any cables hanging up or anyting like that. The first step would be to see if you could find the wheel or wheels that are hanging up.