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How to Fix a Key Fob That isn't Working

If your key fob isn't working There are a few simple steps that can fix it. The first step is to be sure that it's not the backup remote.

If your backup remote cannot lock and unlock the doors of your car, then it is most likely that the primary remote isn't functioning. The most common causes of key problems with your car remote are issues with the circuitry or battery.

Battery

It is not uncommon for the battery in a car key fob to degrade. It is relatively easy to change out batteries, but it is essential to make sure that you select the correct one and you can consult your owner's manual or contact the dealer for the manufacturer to determine the type of battery you need. It's also a good idea to examine the battery compartment with care, as dead batteries sometimes release caustic chemicals that could cause damage to the remote. If changing the batteries doesn't solve the problem it could be because there are other issues that require attention by a professional. For instance, if the buttons appear stuck or damaged It may be necessary to disassemble the remote and rework its components. You could also try reprogramming your car to recognize the new key fob.

Buttons

Key fobs can get dirty and worn-out from frequent use. key fob repairs is not uncommon however, it can cause buttons to cease functioning or require a hard press for them to function. This can be extremely frustrating particularly if you're away from home and you need to start your vehicle. Fortunately, even worn out or damaged buttons can be fixed with just a bit of time and some of the materials you have in the house.

First, make sure the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully remove the remote and look at the circuit board. Examine for signs of rust or other signs the buttons are damaged or worn out. For instance, conductive paint may be missing. Utilizing a Q-tip that has been dipped in alcohol, gently clean any membrane contacts that have worn or have conductive paint missing. Be careful not to rub too hard, because this could damage the conductive paint and stop the button from firing when it is it is pressed.

Also, carefully check the battery connector's terminals to ensure a loose solder connection. If this is the case, connecting them back can restore function to the button. You can apply the same process to restore functionality to any other loose connection in the fob.

In the end, if any of the buttons made of rubber 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 deteriorating and require replacement. It is usually done by rubbing a pencil over the disks. This should bring the button back to life.

If none of this is helpful, or if the button does not respond to a hard press It could be that the circuit board is damaged. car key repair near me can sometimes be repaired by a quick clean and replacing the solder, but it is ideal to have a spare fob in case this method does not work for you.

Circuitry

Whether or not the key fob buttons function the circuit board in your remote may be dirty. The issue can be solved by a thorough inspection. The most common causes for dirty circuit boards are water and broken cases. A damaged case can allow water and other debris to enter and short out the electronic components. Water can also eat away at pins and small connectors on the board, referred to as via's.

If you're skilled enough to open your key fob, and you don't mind making some mess, we can remove the buttons from their sockets and solder in new ones. It's also worth looking at the battery terminal connections. They can become very dirty and if they're loose, the buttons might not function or may even remain in their down position. Soldering the terminals back to their proper positions is usually enough to return a malfunctioning fob to working.

Non-Remote Transponder Chips

Sealed non-remote transponder chip are more durable than remote fobs that have them but they can be cracked by a hole drilled into them or run over by a lawnmower or door handle for a car. Fuse failures are usually to blame for non-remote chip failures.

If you're able to open a sealed non-remote key fob and are able to bear the mess, you can remove the circuit board and examine the fuse using a multimeter for proper diode function. If you're unsure about doing this, go to your local hardware store or Oreilly's and they will usually have an RFID frequency tester that can let you know whether the key fob sending signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged by a variety of factors. They can break their connection with the receiver in your vehicle due to shocks or low-battery, which requires the reprogramming. A professional auto locksmith, or the main dealer can reprogram the keyfob and get it working again. If resetting or replacing your key fob fails it is possible to replace it.