Only had the coupe for a few days but is a real learning experience. Fuse 9 is missing but horn works with key on. Replacing does nothing and fuse is fine. Everything I am seeing points to the SCREEM being missing completely and key just being a key would explain the full scan "communications failure" but ecm and bcm are fine. Think the P0122 is something else entirely but for now just need a way to lock the car when out. At least since the locks all work from the console I know the pump and back end work.