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How to Repair a Remote Key Although most remote key fobs come with impressive battery life, they do eventually get worn out. Sometimes it's as simple as replacing the batteries, but sometimes there are more serious issues. Take apart the remote and clean the buttons. Then bend them in and out. These methods could be all you need to get your key fob working again. Battery If the fob is functioning it is possible to swap out the CR2025 or CR2032 battery. If it's not, you can open the fob and inspect the battery terminals and buttons for any signs of looseness or damaged parts. It is usually possible to solder the buttons and terminals back into place. However, you will have to know the type of battery is used in your fob. If you're unsure whether the battery is at fault you can utilize a backup fob in order to unlock or start your car. If you are able to do so, it's time for a replacement of the primary fob. If not, a professional inspection is needed to figure out why it's not functioning properly. It could be a simple reconfiguration, or it may require other types of repair. There's also the possibility that your vehicle forgotten your fob that you can fix yourself. Case The plastic housing that covers the outside of a remote is known as the case. It usually comes with a replacement button pad. web page is crucial to get a new case, as the original will probably be pretty grungy, and it is essential that the circuit board is installed correctly in the case. The circuit board determines the function of the key fob. You can test it by using a multimeter set to RF (radiofrequency) mode, and a radio scanner that is tuned to the same frequency as the key fob. Another thing to check is the contact points for buttons on the keypad, which might have become loose or broken in the course of time. By carefully re-soldering web page into their original position can usually restore them to their original function unless they completely snap off. Buttons If the buttons on your key fob don't work anymore or are difficult to press, a dorman or motormite remote key housing replacement can be purchased for a low price online for your year/make and model. Then, you can take the circuit board out of the old case and put it into the new one. It is possible to adjust the position of the board on some models. The black contact points of the buttons can be adhered to using aluminum foil and double-sided tape. Programming The key fob is paired with the receiver of your vehicle, and this connection can be corrupted. A professional will inspect your car to determine its make, year and model. They will then use specialist equipment to reconnect or program the transponder chip with a blank fob (or duplicate the key, if possible). Then vehicle key repairs test the remote to be sure it functions. When programming blank keys it is essential to take care. The process can be complicated and each manufacturer comes with different instructions. It is also easy to skip a step or delay too long before leaving the programming mode, so it is best to use an expert with a thorough understanding of your car's security system to reduce the chance of damaging the car. Some key programming tools are also capable of reading diagnostic trouble codes from your vehicle. This can assist in fixing or resolving any additional issues.