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How to Fix a Key Fob That isn't Working If your key fob doesn't work, a few easy steps can be taken to fix it. The first step is to be sure that it's not the backup remote. If the backup remote is able to lock and unlock your car doors it is most likely an issue with the primary remote. The majority of car remote key malfunctions are caused by battery or circuitry problems. Battery It is not uncommon for the battery in the car key fob to degrade. It is quite simple to change out the battery, however it is essential to ensure that you choose the correct type and you can consult your owner's manual, or contact the dealer for the manufacturer to find out the kind of battery you need. car key repair shop near me is also a good idea to inspect the battery compartment thoroughly since dead batteries may leak harmful chemicals that can damage the remote. If replacing the battery does not solve the issue there may be additional issues that require professional attention. If the buttons are stuck or broken, for example it might be necessary to disassemble the remote and rework each component. You can also try reprogramming the vehicle to recognize the new key fob. Buttons Through repeated use, key fobs may wear out and become dirty. This is not uncommon however it can cause buttons to cease functioning or require a hard press for them to function. This can be very frustrating especially if you're out of town and need to start your car. Fortunately, even worn out or malfunctioning buttons can often be fixed with a little time and some of the materials you may already have around the home. First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully remove the remote and look at the circuit board. Check for signs of corrosion or other indications that the buttons are worn or damaged, such as missing paint that is conductive. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that is worn-out or where conductive paint is missing. Avoid rubbing too hard, as this can erode the conductive paint and stop the button from firing when the button is pressed. Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back into place will allow the button to function again if this is the situation. The same procedure can be used to restore function to any loose connections within the fob. In car key fob repairs near me , if any of the rubber buttons on the front of the key fob aren't functioning or require a difficult press to function, it is likely that the graphite disks at the back of the button are wearing out and require replacement. It is usually done by rubbing a pen across the disks. This should bring the button to life. If none of this is helpful, or if the button doesn't respond to a firm press It could be because the circuit board itself has gone bad. It is possible to fix this issue by cleaning and re-soldering your fob, but you should have an extra in case it does not work. Circuitry The circuit board inside your remote control could be dirty regardless of whether the buttons on the key fob are working or not. This problem can be resolved through a thorough examination. The most frequent causes of dirty circuit boards are water and broken cases. key repair shop near me broken case can let water and other debris to enter the circuit board, causing it to short. Water can also get through pins and vias, which are the tiny connectors that are found on the board. If you are handy enough to open your key fob, and don't mind making some mess, we can take the buttons out of their sockets and then solder new ones. It's also worth checking the battery terminal connections. If they are loose, the buttons might not function or get stuck in their down position. Soldering the terminals and buttons to their proper positions is usually enough to return a malfunctioning fob to working. Non-Remote Transponder Chips The sealed non-remote chips are more durable than their remote fobs, however they are susceptible to breaking in the event of a hole being drilled into them or if a car door handle or lawnmowers is pushed over them. Most of the time non-remote transponder chip malfunctions could be attributed to a blown fuse. If you're able to remove a key fob that is sealed and are willing to put up with the mess, you can easily remove the circuit board and check the fuse using a multimeter for proper diode function. If you're unsure about doing this, visit your local hardware store or Oreilly's, and they'll usually have a RFID frequency tester that can tell you whether the key fob sending signals. Programming Key fobs aren't indestructible and are susceptible to being damaged by a lot of things. They may lose their connection to the car's receiver due to shock or low battery, requiring the reprogramming. A professional auto locksmith, or the main dealer, can reprogram your key fob and get it back up and running again. In the event that resetting and fixing your key fob isn't working it could be the time to replace it entirely.