The best place to start when troubleshooting any electrical problem with your 4th generation (2013, 2014, 2015, 2016 and 2017) Toyota Avalon is to check for a blown fuse or a faulty relay in either the engine bay or interior passenger compartment electrical panels. Take a look at my DIY instructions for the procedure by clicking on the text link or thumbnail image below.
2013-2017 Toyota Avalon Electrical Fuse Replacement Guide
