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How to Fix a Key Fob That isn't Working If your key fob does not work and you're not sure why, you can fix it by following some simple steps. The first step is to make sure that it's not the backup remote. If the backup remote is able to lock and unlock your car doors then there is likely an issue with the main remote. The most common causes of key problems with your car remote are issues with the circuitry or battery. Battery It is not unusual for the battery in a key fob for cars to wear out. It is easy to replace a battery. However it is crucial to select the right kind. You can consult your owner's guide or contact the manufacturer to find out the correct type. It is also crucial to check the battery compartment, as batteries that are not working properly can release caustic chemicals which can damage the remote. If replacing the battery does not solve the issue, there may be other issues that require professional attention. For example, if buttons seem to be stuck or damaged It may be necessary to disassemble the remote and rebuild its components. You can also try reprogramming your car to recognize the new key fob. Buttons Key fobs may become filthy and worn out due to repeated use. This is not atypical, but it can cause buttons to stop functioning or require a hard press for them to function. This can be very frustrating particularly if you're away from home and need to start your car. Even broken or damaged repair car key near me can be fixed with a bit of time and tools you already have at home. First, check that the batteries have been correctly installed and that the indentation on the back of the button has been filled. Then, carefully open up the remote and look at the circuit board. Look for indications of rust or other indications that the buttons are damaged or worn. For instance the paint that conducts electricity could be missing. Utilizing a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that have become damaged or where conductive paint is missing. Don't rub too hard, as this could erode the conductive paint and stop the button from firing when pressed. Check the battery connector terminals carefully for any loose solder connections. If this is the case, reconnecting them may bring back function to the button. The same method can be used to restore function to any loose connections in the fob. If any of the rubber buttons on the front of the keyfob are not functioning or require to be pressed extremely hard the graphite disks on the back of the button might have worn out and require replacement. This can usually be done by rubbing a pencil across the disks. This should bring the button back to its original state. If none of this is useful or if the button still does not respond to a firm press, then it may be the case that the circuit board itself has become damaged. It is possible to fix the issue by cleaning and re-soldering the button however, you should have another spare in case it does not work. Circuitry Whether or not the key fob buttons are working the circuit board that is inside the remote could be dirty. A thorough inspection is often enough to resolve this problem. Broken cases and water are the most frequent causes of boards that are dirty. A broken case allows water and other debris to pass through and short out the electronic components. Water can also damage pins and vias, which are the tiny connectors on the board. If you're handy enough to open your key fob and don't mind making a mess, we can remove the solder from the buttons and put new ones in their place. Also, it's worth checking the connections between the battery terminals. If they are loose, the buttons may not function properly or become stuck in their down position. Soldering terminals and buttons back into place is usually enough to restore a non-working fob to working. Non-Remote transponder chips The non-remote chips that are sealed are more durable than their remote fobs, however they are susceptible to breaking if a hole is drilled in them or if a car door handle or lawnmowers plows over them. Most of the time, non-remote transponder chip failures could be attributed to a blown fuse. If you're handy enough to open the sealed key fob and can tolerate 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 not comfortable with this, visit your local Oreilly or hardware store and use their RF frequency tester. This will inform you whether the key fob is sending an RF signal. Programming Key fobs aren't indestructible and can be damaged through a variety of causes. They can break their connection with the receiver inside your vehicle due to shocks or a low battery, requiring reprogramming. A professional auto locksmith or a dealer in the main can reprogram your key fob and get it back functioning again. If, in the unlikely event that resetting or repairing your key fob doesn't work it could be the time to replace it completely.