The best place to begin when you are troubleshooting any electrical problem with your seventh generation (2013, 2014, 2015 and maybe also the updated 2016 & 2017 model years) Nissan Sentra sedan is to check for a blown fuse or relay in either the engine bay fuse box or the interior passenger compartment electrical panel. Take a look at my DIY instructions for the procedure by clicking on the text link or thumbnail image below.