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How to Fix a Key Fob That isn't Working

If your key fob isn't functioning A few easy steps can be taken to fix it. First, check to make sure it's not your backup remote.

If your backup remote car key repair near me can lock and unlock the doors of your car key repair company, then it is likely that the main remote is not working. The majority of car key remote repair remote key malfunctions are caused by circuitry or battery problems.

Battery

It is not unusual to find a battery on the car key repair company key fob to degrade. It is fairly easy to replace the battery, however it is crucial to ensure that you choose the correct type; you can look in your owner's manual, or contact the dealer of the manufacturer to find out the kind of battery you need. It is also essential to inspect the battery compartment, as batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the batteries doesn't solve the issue, it may be that there are other issues that require professional attention. If buttons are stuck or broken, for example, it may be necessary remove the remote and rebuild each component. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

Key fobs can get dirty and worn-out from repeated use. This is not atypical however it can cause buttons to stop functioning or require a long press to function. This can be very frustrating, especially when you are away from your home and need to switch on your car. Fortunately, even worn out or damaged buttons can be fixed with a bit of time and a few items you might already have in the home.

First, make sure that the batteries are properly placed 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 indications that the buttons are worn out or damaged, such as 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. Be careful not to rub too hard, because this could damage the conductive painting and prevent the button from firing when pressed.

Also, carefully check the battery connector's terminals for any loose solder connections. If this is the case, simply soldering them back in place may restore function to the button. You can use the same process to restore functionality to any other loose connection in the fob.

Finally, if any of the buttons made of rubber on the front of the key fob have stopped functioning or require a difficult press to function it is likely that the graphite disks at the back of the button are deteriorating and need to be replaced. This can usually be done by rubbing a pencil over the disks. This should bring the button back to working.

If none of this is helpful, or if the button still doesn't respond to a hard press, then it may be the case that the circuit board itself is damaged. It is possible to fix this issue by cleaning and re-soldering your fob but you should also have an extra in case it does not work.

Circuitry

If the key fob buttons function the circuit board that is inside your remote may be dirty. A thorough inspection is often enough to resolve this problem. Water and broken cases are the most common causes of dirty boards. A damaged case allows water and other debris to get in and short out the electronics. Water can also eat through pins and vias, which are small connectors found on the board.

If you're skilled enough to open your key fob and aren't afraid of making a mess, we can remove the buttons from their sockets and then solder new ones. It's also worth looking at the battery terminal connections. 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 restore a non-working fob to working.

Non-Remote Transponder Chips

The non-remote chips sealed in a sealed case are more durable than remote fobs. However, they can be cracked 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 chips fail, and this could be attributed to blowing fuses.

If you're able to open the sealed key fob and can tolerate the mess, you can remove the circuit board and examine the fuse using an instrument to verify diode function. If you're unsure about doing this, go to your local hardware store or Oreilly's, and they will usually have a RFID frequency tester that can let you know if the key fob is sending a signal.

Programming

Key fobs aren't indestructible and can be damaged through a variety of causes. They can lose their pairing to the receiver in your car key remote repair due to shock or a low battery, keyless entry repair (sites) requiring them to be reprogrammed. A professional auto locksmith or dealer will be able to reprogram your key fob and get it back up and running. If resetting or repairing your key fob fails it is possible to replace it.