Why is my Toyota Corolla rear defroster not working?

If the rear defroster is not working on Your Toyota Corolla and You would like to know why I can help give You some reasons. One of the reasons why the rear defroster will stop working is due to a blown fuse. Yes, a fuse will prevent the defroster from working. What the fuse for this component does is it gives it the power it needs so that when You press that button to defrost, it does its job. Another reason could be corroded or damaged wiring to the defroster. I would recommend to check the fuse first and if the fuse is good, check the wiring for any damage and replace it if it is too far gone.