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How to Fix a Key Fob That isnt Working If your key fob doesnt work A few easy steps can fix it The first step is to make sure that its not the backup remote If the backup is able to lock and unlock your car doors then theres a likely issue with the primary remote The most frequent causes of key malfunctions for car remotes are circuitry or battery issues Battery It is not uncommon for the battery in a key fob for cars to degrade It is fairly easy to change out batteries but it is crucial to ensure that you select the correct one that you can refer to the owners manual or talk to the dealer for the manufacturer to find out what kind of battery you require It is also important to inspect the battery compartment since batteries that are not working properly can release caustic chemicals which can damage the remote If replacing the batteries doesnt solve the problem it may be that there are other issues that require attention by a professional For More Support if buttons seem to be stuck or damaged it may be necessary to take the remote apart and rebuild its components You can also try reprogramming your car to recognize the new key fob Buttons Through frequent use key fobs may become worn and dirty It is not uncommon for buttons to cease functioning or require a hard press to get them working key lock repair near me can be a huge hassle especially if you are away from home and need to start your vehicle Fortunately even wornout or malfunctioning buttons can often be fixed with a little time and some of the materials you may already have around the home First verify that the batteries have been correctly installed and that the indentation on the back of the button is filled Then carefully open up the remote and examine the circuit board Look for signs of rust or other signs the buttons have been damaged or worn For example the paint that conducts electricity could be missing Use a Qtip that has been dipped in alcohol to gently clean any membrane contact that is wornout or has conductive paint missing Dont rub too hard as this can damage the conductive paint and block the button from firing when you press it Check the battery connector terminals carefully for any loose solder connections If this is the case simply soldering them back in place can bring back function to the button You can apply the same procedure to restore functionality to any other loose connection within the fob In the end if any of the buttons made of rubber that are on the front of the key fob have stopped working or require a very difficult press to function it is likely that the graphite disks at the back of the button are deteriorating and need to be replaced It is usually done by rubbing a pen over the disks This should bring the button to life If none of this is useful or if the button does not respond to a hard push It could be that the circuit board itself has become damaged It is possible to fix this by cleaning and resoldering the fob but you should also have a spare in case it does not work Circuitry Whether or not the key fob buttons function the circuit board that is inside your remote may be dirty This problem can be resolved by a thorough inspection Broken and damaged cases are the most common causes of dirty boards A damaged case allows water and other debris to get in and short out the electronics Water can also damage pins and vias which are tiny connectors on the board If you are handy enough to open your key fob and dont mind making an mess you can remove the buttons from their sockets and then solder new ones Its also worth checking the connections between the battery terminals If they are loose the buttons may not function or get stuck in their down position Soldering the terminals back to their original positions is often enough to restore a nonworking fob back to working NonRemote Transponder Chips Sealed nonremote transponder chip are more durable than remote fobs that have them however they are still susceptible to being broken by a hole being that is drilled into them or over by a lawnmowers blade or door handle for a car Most of the time nonremote transponder chip failures can be attributed to an exploded fuse If youre handy enough to open up a sealed nonremote key fob and can tolerate the mess you can remove the circuit board and check the fuse using an instrument to verify diode function If you dont feel comfortable with this you can go to your local Oreilly or hardware store and utilize their RF frequency tester conversational tone will tell you whether the key fob transmits a signal Programming Key fobs endure many abuses and arent completely indestructible They can lose their pairing with the receiver in your vehicle because of shocks or a lowbattery which requires changing the program A professional auto locksmith or a dealer in the main can reprogram your key fob and get it back working again In the event that resetting or repairing your key fob fails it could be the time to replace it completely