I have a 2006 Nissan Murano I am working on that shows a yellow SHIFT P warning light and key light while running. The key fob is lost,but I still think that once I use the key to start the truck, everything should be fine, but it is not. Usually, if you don't have the Fob, you won't be able to turn the car on unless you use a key. I don't see why it shows with the car running. I check for codes, but none were found. Any suggestions?