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How to Fix a Key Fob That isn't Working

If your key fob won't work, you can fix it by following some simple steps. The first step is to be sure that it's not the backup remote.

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

Battery

It is not unusual for the battery in the car remote key fob repair key fob to get worn out. It is easy to replace the battery. However it is essential to select the right kind. You can refer to your owner's guide or contact the manufacturer to inquire about the right kind. It is also a good idea to inspect the battery compartment carefully since dead batteries may leak harmful chemicals that can harm the remote. If changing the batteries does not solve the problem it could be because there are other issues that require attention by a professional. If the buttons are damaged or stuck for instance it could be necessary to remove the remote and rebuild each component. You could also try reprogramming your vehicle to recognize the new key fob repairs near me fob.

Buttons

Through repeated use, key fobs could become worn and dirty. It is not common for buttons to stop functioning, or require a hard press to get them working. This can be frustrating, especially when you are away from home and have to turn on your car. Fortunately, even worn out or broken buttons can usually be fixed with just a bit of time and a few items you have in the home.

First, make sure that the batteries have been correctly inserted and that the indentation at the back of the button is filled. Then, carefully remove the remote and look at the circuit board. Check for signs of corrosion or other signs that the buttons are worn or damaged, such as missing the conductive paint. Use a Q-tip dipped in rubbing alcohol, gently clean any membrane contacts that have damaged or where conductive paint is missing. Don't rub too hard as this can damage the conductive paint and prevent the button from firing when pressed.

Check the battery connector's terminals carefully for any loose solder connections. If this is the case, connecting them back could restore function to the button. You can follow the same process to restore functionality to any other loose connection inside the fob.

If, for instance, any of the buttons made of rubber that are on the front of the key fob have stopped functioning or require a difficult press to function it is likely the graphite disks that are on the back of the button are deteriorating and need to be replaced. This can usually be done by rubbing a pencil on the disks, which should bring the button back to its original state.

If none of this is helpful or if the button doesn't respond to a hard push It could be that the circuit board itself has become damaged. It is possible to fix this by a quick clean, and re-soldering, but it is recommended to have an additional fob in case this method fails for you.

Circuitry

Whether or not the key fob buttons are working the circuit board in your remote may be dirty. A very thorough inspection will usually resolve this problem. Broken and damaged cases are the most frequent causes of boards that are dirty. A broken case allows water and other debris to pass through and short out the electronic components. Water can also eat away at pins and small connectors on the board called via's.

If you're skilled enough to open your key fob, and don't mind making an mess, you can take the buttons out of their sockets and then solder new ones. It's also worth checking the battery terminal connections. If they're loose, the buttons may not work or even become stuck in their down position. Soldering the terminals and button's back in their place is generally all that's required to return a non-working key fob to working order.

Non-Remote Transponder Chips

The non-remote chips that are sealed are more durable than their remote fobs. However, they can be cracked when a hole is made in them, or in the event that a door handle of a car key and repair or lawnmower runs over them. The majority of non-remote transponder chip failures could be attributed to blowing fuses.

If you're handy enough to open the sealed key fob and can tolerate the mess, you can take off the circuit board and test the fuse using an instrument to verify diode function. If you don't feel comfortable with this, visit your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob transmits an RF signal.

Programming

Key fobs endure many abuses and aren't indestructible. They can lose their pairing to the receiver in your car due to shock or a low battery, requiring the reprogramming. A professional auto locksmith or main dealer can reprogram your key fob and get it working again. If resetting or fixing your keyfob does not work, you may need to replace it.