I do not remember if the corolla is of disk or drum drum You should check first the brake line seeing if the cylinder returns when you stop stopping the other it is ke the cylidro has oxide that prevents the cylinder from its return and it is cool They are well and if possible, see the cylinders taking away a rubber tries a pruba without a drum supporting you with two screams oppressing the shoes and that a person helps you to cool to see all the function of刹车