Window regulators and motors have an essential role in smooth functioning of car’s windows. The former one is responsible for raising and lowering window glass whereas the latter one provides regulator the power to function. Basically, power window motor coverts electronic signals received from switch to mechanical energy. This energy then activates window regulator so it makes the upward and downward movement of window glass easy. As both of these parts are prone to constant wear and tear, they gradually fail or break.