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How to Fix a Key Fob That isn't Working If your key fob does not work then you can fix it by following a few simple steps. The first step is to be sure that it's not the backup remote. If the backup is able to lock and unlock your car doors then there's a likely issue with the main remote. The most common causes for car remote key failure are battery or circuitry issues. Battery The battery inside a key fob can be worn out over time. It is easy to replace the battery. However, it is important that you choose the right kind. You can consult your owner's manual or call the manufacturer to find out the correct type. It is also a good idea to inspect the battery compartment with care, as dead batteries sometimes leak caustic chemicals that can cause damage to the remote. If changing the batteries does not solve the problem, it may be that there are other issues that require professional attention. For instance, if the buttons seem stuck or broken it could be necessary to take the remote apart and rework its parts. You could also try reprogramming the vehicle to recognize the new device. Buttons Key fobs can become dirty and worn out from frequent use. It is not uncommon for buttons to cease working, or to require a long push to make them work. This can be a hassle, especially when you are away from your home and have to start your car. Fortunately, even worn-out or broken buttons can usually be fixed with a bit of time and a few materials you may already have around the home. First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Look for signs of corrosion or other indications that the buttons are worn or damaged, like missing the conductive paint. Use a Q-tip that has been dipped in rubbing alcohol to gently clean any membrane contact that has become worn out or has conductive paint missing. Don't rub too hard as this can damage the conductive paint, and block the button from firing when pressed. Also, carefully check the battery connector terminals for a loose solder connection. Soldering them back into place will restore the button's functionality If this is the situation. You can apply the same procedure to restore functionality to any other loose connection in the fob. In the end, if any of the rubber buttons on the front of the key fob stop working or require a very difficult press to function it is likely the graphite disks at the back of the button are wearing down and need to be replaced. It is usually done by rubbing a pen across the disks. key repair service near me should bring the button to life. If none of this is useful or if the button doesn't respond to a hard push, then it may be the case that the circuit board is damaged. It is possible to fix this issue by cleaning and re-soldering the fob, but you should have an extra in case it does not work. Circuitry The circuit board in your remote control may be dirty, regardless of whether the buttons on the key fob are working or not. This problem can be resolved by a thorough inspection. Broken cases and water are the most frequent causes of dirty boards. A damaged case can allow water and other debris into the circuit board, causing it to short out. Water can also get through pins and vias, which are small connectors that are found on the board. If you're skilled enough to open your key fob, and you don't mind making an mess, you can take the buttons out of their sockets and put in new ones. It's also worth looking at the battery terminal connections. They can get very dirty and if they're loose, the buttons might not work or even stick in their down position. Soldering the terminals, and putting the button back into place is typically all that's required to return a non-working key fob to working condition. Non-Remote Transponder Chips Sealed non-remote transponder chips are more durable than remote fobs they are contained in, but they can still be broken by a hole being drilled into them or run over by a lawnmower or door handle for a car. Failures of the fuse are typically to blame for non-remote chip failures. If you're handy enough to remove a sealed non-remote key fob and are able to bear the mess, you can remove the circuit board and check the fuse with a multimeter to ensure that it is functioning as intended. function. If you're unsure about doing this, go to your local hardware store or Oreilly's, and they usually have a RF frequency tester that will let you know whether the key fob sending a signal. Programming Key fobs are not indestructible and are susceptible to being damaged through a variety of causes. They may lose their connection to the receiver in your car due to shock or a low battery, requiring the reprogramming. A professional auto locksmith or main dealer can reprogram your keyfob to get it working again. In the rarer case that resetting and repairing your key fob doesn't work it could be the time to replace it entirely.
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