https://byers-jensby-2.technet....bloggers.de/the-10-m
How to Repair a Key Fob If you're unable to find your key fob and start the vehicle, it could be time to go to an automotive service. But before you go to that there are a few things you should examine first. The most obvious reason your key fob isn't working is that it has a dead battery. Fortunately, most key fobs run on regular 3V button cells that are easily available in most stores. Dead Battery The battery inside your key fob powers the remote functions, which enable you to open or un