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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 fix it. First, make sure that it's not your backup remote.

If the backup can lock and unlock your car key remote repair near me door, it is most likely an issue with the main remote. Most electronic car key repair near me remote key failures are caused by circuitry or battery problems.

Battery

The battery inside the key fob may wear out over time. It is quite simple to replace batteries, but it is crucial to ensure you use the right type and you can consult the owner's manual or talk to the dealer for the manufacturer to determine the type of battery you need. It is also essential to inspect the battery compartment as dead batteries can leak caustic chemicals that can harm the remote. If replacing the battery does not fix the problem there may be additional issues that require professional attention. For instance, if the buttons seem to be stuck or damaged it could be necessary to take the remote apart and rebuild its components. You can also try reprogramming the vehicle to recognize the new fob.

Buttons

Key fobs may become dirty and worn out from repeated use. It is not unusual for buttons to cease working, or to require a long push to make them work. This can be frustrating, especially when you are away from home and need to turn on your emergency car key repair. Even malfunctioning or worn-out buttons can be fixed with a little time and tools you already have at home.

First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Open the remote carefully and examine the circuit board. Look for signs of corrosion or other signs that the buttons are worn or damaged, like missing paint that is conductive. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that has become worn-out or where conductive paint is missing. Don't rub too hard in order to 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 could bring back function to the button. You can use the same procedure to restore functionality to any other loose connection within the fob.

Finally, if any of the buttons made of rubber 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 wearing out and need to be replaced. You can do this by rubbing a pen across the disks. This should bring the button back to life.

If all of this doesn't help or if the button still doesn't respond to a firm press, then it may be because the circuit board has become damaged. It is possible to fix the issue by cleaning and re-soldering the button however, you should have an extra in case it doesn't work.

Circuitry

The circuit board of your remote control could be dirty, regardless of whether the buttons on the key fob are working or not. This issue can be fixed through a thorough examination. The most common causes of dirty circuit boards is water and broken cases. A damaged case can allow water and other debris to pass through and short out the electronics. Water can also destroy pins and connectors on the board, which are known as via's.

If you're able to open up your key fob, and you're not afraid of some mess, we can de-solder the buttons and solder new ones in their place. It's also worth checking the battery terminal connections. If they're loose, the buttons might not work or even become stuck in their down position. Soldering the terminals, and putting the button back in place is usually all that's needed to return keys that are not in working order.

Non-Remote transponder chips

The non-remote chips sealed in a sealed case are more durable than remote fobs, however they can be cracked in the event of a hole being drilled into them or when a door key Repair near me handle for a car key lock repair near me or lawnmowers is pushed over them. The majority of non-remote transponder chips fail, and this can be blamed on blowing fuses.

If you're able to open the sealed key fob and are able to bear the mess, you can easily remove the circuit board and check the fuse using an instrument to verify diode function. If you're not comfortable doing this, visit your local hardware store or Oreilly's, and they'll usually have a radio frequency tester that can determine whether the key fob transmitting a signal.

Programming

Key fobs aren't indestructible and can be damaged through a variety of causes. They may lose their connection to the car's receiver due to shock or a low battery, which requires them to be reprogrammed. A professional auto locksmith or a dealer in the main can reprogram the key fob and get it back working again. If, in the unlikely event that resetting and fixing your key fob fails it could be the time to replace it all over again.