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How to Fix a Key Fob That isn't Working

If your key fob doesn't work and you're not sure why, you can fix it by following just a few steps. The first step is to be sure it's not the backup remote.

If the backup is able to lock and unlock your car doors, then there is likely an issue with the main remote. The most common causes for key problems with your car remote key repair shop near me remote are issues with the circuitry or battery.

Battery

It is not unusual for the battery inside a car key fob to degrade. It is relatively easy to change out batteries, but it is important to make sure that you choose the correct type that you can refer to the owner's manual or talk to the dealer for the manufacturer to find out the kind of battery you require. It is also important to inspect the battery compartment as batteries that are not working properly can release caustic chemicals which can damage the remote. If changing the batteries does not solve the problem it could be that there are other issues that require attention by a professional. If the buttons are damaged or stuck for instance it might be necessary to remove the remote and rebuild each component. It is also possible to reprogramme the vehicle to recognize the new remote.

Buttons

Key fobs may become dirty and worn out from frequent use. It is not unusual for buttons to stop functioning, or require a long push to make them work. This can be frustrating particularly when you're away from home and you need to switch on your car. Fortunately, even worn-out or broken buttons can usually be fixed with a little time and a few items you may already have around the home.

First, check that the batteries are properly installed 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 buttons are worn out or damaged, such as missing the conductive paint. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has become worn out or where conductive painting is missing. Do not rub too vigorously as this can damage the conductive paint and prevent the button from firing when you press it.

Examine the battery connector's terminals for loose solder connections. If this is the case, connecting them back can bring back function to the button. The same method can be used to restore functionality to any other loose connections inside the fob.

In the end, if any of the buttons made of rubber that are on the front of the key fob aren't working or require a long press to function it is likely the graphite disks that are on the back of the button are wearing down and require replacement. You can usually do this by rubbing a pen over the disks. This should bring the button back to life.

If none of these solutions work, or if you still not be able to get the button respond when you press it hard, it could be that the circuitry has failed. This can sometimes be repaired with a quick clean and re-soldering, but it is recommended to have an additional fob in case this method does not work for you.

Circuitry

The circuit board in the remote key fob repair near me control could be dirty regardless of whether the buttons on the key fob work or not. The issue can be solved by a thorough inspection. Water and broken cases are the most common causes of dirty boards. A damaged case could let water and other debris to enter the circuit board, which can cause it to short. Water can also get through pins and vias, which are the tiny connectors found on the board.

If you're handy enough to remove your key fob repairs near me fob and don't mind a little mess, we can de-solder the buttons and then solder new ones in their place. It's also worth checking the connections between battery terminals. They can become extremely dirty and if they're loose, the buttons might not work or may even remain in their down position. Soldering the terminals and button's back in their place is generally all that's needed to return a non-working key fob to working order.

Non-remote key repair car remote control key [discover this] Transponder Chips

The non-remote chips sealed in a sealed case are more durable than their remote fobs. However, they are susceptible to cracking in the event of a hole being drilled in them, or in the event that a door handle of a car or lawnmower runs over them. Failures of the fuse are typically to blame for non-remote chips failures.

If you're not confident opening the key fob, you may remove the circuitboard and use a multimeter to verify that the diode is working correctly. If you're unsure about doing this, head to your local hardware store or Oreilly's and they'll usually have an RF frequency tester that will let you know whether the key fob transmitting a signal.

Programming

Key fobs take many abuses and aren't completely indestructible. 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 a main dealer can reprogram your key fob to get it working again. If resetting or repairing the keyfob is not working it may be necessary to replace it.