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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 with just a few steps. First, ensure that it's not the backup remote.

If the backup is able to lock and unlock your car key fob repairs near me doors then there's a likely issue with the primary remote. Most problems with car key fob repair remote keys result from battery or circuitry problems.

Battery

It is not unusual for the battery in the key fob for cars to degrade. It is easy to replace batteries. However, it is important that you choose the right type. You can check the owner's manual or contact the manufacturer to find out the correct type. It's also a good idea to inspect the battery compartment carefully because dead batteries can release caustic chemicals that could cause damage to the remote. If replacing the batteries doesn't solve the problem it could be that there are other issues that require professional attention. For instance, if buttons seem to be stuck or damaged, it may be necessary to disassemble the remote and rework its parts. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

From frequent use, key fobs could wear out and become dirty. It is not uncommon for buttons to stop functioning, or require a long push to make them work. This can be a huge hassle particularly if you're out of town and need to start your vehicle. Fortunately, even worn out or malfunctioning buttons can often be fixed with a little time and a few materials you might already have in the house.

First, make sure the batteries are properly charged and that the indentation on the back of the button is filled. Take the remote key fob repair apart and inspect the circuit board. Examine for signs of rust or other signs that buttons are worn out or damaged, such as missing conductive paint. Then, using a Q-tip that has been dipped in alcohol, gently clean any membrane contacts that have become damaged or have conductive paint missing. Don't rub too hard as this can damage the conductive paint, and block the button from firing when it is pressed.

Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place will allow the button to function again in the event that this is the situation. The same method can be used to restore function to any other loose connections within the fob.

Finally, if any of the buttons made of rubber that are on the front of the key fob stop functioning or require a difficult press where to repair car key remote function, it is likely that the graphite disks that are on the back of the button are deteriorating and require replacement. You can usually do this by rubbing a pencil over the disks. This should bring the button to life.

If none of these solutions work, or if you still are unable to get the button to respond when you press it hard, it could be that the circuitry has failed. It is possible to fix the issue by cleaning and re-soldering the fob, but you should have a spare in case it does not work.

Circuitry

Whether or not the key fob buttons are working the circuit board that is inside your remote may be dirty. A thorough inspection will usually resolve this problem. Broken and damaged cases are the most frequent causes of dirty boards. A broken case can allow water and other debris into the circuit board, which can cause it to short out. Water can also damage pins and vias, which are small connectors on the board.

If you're handy enough to remove your key fob and don't mind a little 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 function properly or become stuck in their down position. Soldering the terminals and buttons back in place is usually all it takes to restore a non-working key fob to functioning condition.

Non-Remote Transponder Chips

The non-remote Car key repairs chips sealed in a sealed case are more durable than their remote fobs, but they can be cracked when a hole is made into them or when a door handle for a car or lawnmowers plows over them. Most of the time non-remote transponder chip failures could be attributed to blowing fuses.

If you're able to open up a sealed non-remote key repair near me fob and are willing to put up with the mess, you can easily remove the circuit board and test the fuse with a multimeter for proper diode function. If you're not sure with this, visit your local Oreilly or hardware store and use their RF frequency tester. This will inform you whether the key fob is sending an RF signal.

Programming

Key fobs aren't indestructible and are susceptible to being damaged through a variety of causes. They may lose their connection to the receiver in your car due to shock or a low battery, which requires the reprogramming. A professional auto locksmith or a main dealer can reprogram your key fob to get it functioning again. If resetting or fixing your key fob fails, you may need to replace it.