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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 with some simple steps. First, ensure that it's not your backup remote. If your backup remote can lock and unlock the doors of your car, it is likely that the primary remote isn't functioning. Most car remote key failures result from circuitry or battery problems. Battery It is not uncommon to find a battery on the key fob for cars to degrade. It is quite simple to replace the battery, however it is essential to ensure you use the right type; you can look in your owner's manual, or contact the manufacturer's dealer to find out what kind of battery you need. It is also crucial to check the battery compartment, since dead batteries can leak caustic chemicals which can damage the remote. If changing the batteries does not solve the problem, it may be that there are other issues that require attention from a professional. For example, if buttons appear stuck or damaged, it may be necessary to disassemble the remote and rebuild its components. You could 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 unusual however, it can cause buttons to stop functioning or require a long press to work. This can be extremely frustrating particularly if you're away from home and you need to start your vehicle. Even worn-out or malfunctioning buttons are often fixable with a bit of time and the tools you already have at home. First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Open the remote carefully and inspect the circuit board. Look for indications of rust or other indications that the buttons are worn or damaged. For example there could be conductive paint missing. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has become damaged or where conductive paint is missing. Don't rub too hard in order to damage the conductive paint and prevent the button from firing when it is pressed. Examine the battery connector's terminals for loose solder connections. If this is the case, soldering them back in place may restore functionality to the button. The same method can be used to restore functionality to any other loose connections within the fob. If click the following page of the rubber buttons located at the front of the keyfob are not working or require being pressing extremely hard the graphite disks on the back of the button might have worn out and need to replaced. You can do this by rubbing a pen over the disks. This should bring the button to life. If all of this doesn't help, or if the button does not respond to a firm press It could be that the circuit board has gone bad. It is possible to fix this by cleaning and re-soldering the fob, but you should have another spare in case it doesn't work. Circuitry The circuit board in your remote control could be dirty regardless of whether the buttons on the key fob function or not. A thorough inspection is usually enough to fix this issue. Water and broken cases are the most frequent causes of dirty boards. A damaged case allows water and other debris to get in and short out the electronic components. Water can also eat away at pins and connectors that are small on the board called via's. If click the next site to open up your key fob and don't mind making a mess, we can remove the solder from the buttons and then solder new ones in their place. Also, it's worth checking the connections between battery terminals. They can become very dirty and if they're loose, the buttons may not work or even stick in their down position. Soldering the terminals and buttons into place is usually enough to bring a non-working fob to a working condition. Non-Remote transponder chips Sealed non-remote transponder chip are more durable than remote fobs that have them but they can be damaged by a hole that is that is drilled into them or over by a lawnmowers or car door handle. Most of the time non-remote transponder chips fail, and this can be attributed to blowing fuses. If you're able to open up the sealed key fob and are willing to put up with the mess, you can remove the circuit board and examine the fuse with a multimeter to ensure that it is functioning as intended. function. If you're not confident doing this, visit your local hardware store or Oreilly's and they will usually have an RF frequency tester that will tell you whether the key fob transmitting a signal. Programming Key fobs are not indestructible and are susceptible to being damaged by a lot of things. They can lose their pairing with the receiver inside your vehicle because of shocks or a low battery, requiring the reprogramming. A professional auto locksmith or main dealer can reprogram the keyfob and get it working again. If resetting or replacing your keyfob does not work it may be necessary to replace it.

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