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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. The first step is to be sure that it's not your backup remote.

If your backup Remote Key Repair can unlock and lock the doors of your vehicle, it is most likely that the primary remote isn't functioning. The most frequent causes of key malfunctions for car key repair near me remotes are issues with the circuitry or battery.

Battery

It is not uncommon for the battery inside a key fob for cars to get worn out. It is fairly easy to change out a battery, although it is crucial to ensure you select the correct one and you can consult the owner's manual or talk to the dealer of the manufacturer to find out what kind of battery you require. It's also a good idea to examine the battery compartment carefully because dead batteries can leak caustic chemicals that can damage the remote. If replacing the battery does not solve the issue there may be additional issues requiring professional attention. If buttons are stuck or broken, for example it could be necessary to disassemble the remote and rework each component. It is also possible to reprogramme the vehicle to recognize the new fob.

Buttons

From repeated use, key fobs may wear out and become dirty. This is not uncommon however, it can cause buttons to stop functioning or require a long press to work. This can be frustrating particularly when you're away from home and need to turn on your car key repairs. Fortunately, even worn out or broken buttons can usually be fixed with a little time and a few items you might already have in the home.

First, ensure that the batteries are charged correctly and that the indentation on the back of the button is filled. Open the remote carefully and inspect the circuit board. Check for indications of rust or other indications that the buttons have been damaged or worn. For instance the paint that conducts electricity could be missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has become worn-out or has conductive paint missing. Don't rub too hard in order to damage the conductive paint and stop the button from firing when it is pressed.

Check the battery connector terminals for loose solder connections. If this is the case, soldering them back in place could restore function to the button. You can apply the same method to restore functionality to any other loose connection within the fob.

Finally, if any of the buttons made of rubber that are on the front of the key fob have stopped working or require a very difficult press to function it is likely that the graphite disks at 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 you not be able to get the button respond when pressed hard, it is possible that the circuitry is failing. It is possible to fix this issue by cleaning and re-soldering the button however, you should have a spare in case it doesn't work.

Circuitry

If the keys fob buttons are functioning the circuit board in your remote may be dirty. This issue can be fixed by a thorough inspection. Broken and damaged cases are the most common causes of boards that are dirty. A damaged case can allow water and other debris to enter the circuit board, causing it to short. Water can also damage pins and small connectors on the board called via's.

If you are handy enough to open your key fob, and aren't afraid of making some mess, we can remove the buttons from their sockets and solder in new ones. Also, you should check the connections between battery terminals. They can become very filthy and if they're not tight enough, the buttons might not function or may even remain in their down position. Soldering terminals and buttons back into place is usually enough to bring a non-working fob to a working condition.

Non-Remote transponder chips

Sealed non-remote transponder chips are much more durable than remote fobs that have them but they can still be damaged by a hole that is drilled into them or run over by a lawnmowers blade or car door handle. Fuse failures are usually to blame for non-remote chips failures.

If you're not confident opening the key fob, take the circuit board off and use a multimeter to determine if the diode is operating correctly. If you're not comfortable with this, you can go to your local Oreilly or hardware store and use their RF frequency tester. This will inform you whether the key fob transmits signals.

Programming

Key fobs aren't impervious to destruction and can be damaged by a variety of factors. They can lose their pairing to the repair car keys's receiver because of shock or a low battery, requiring the reprogramming. A professional auto key fob repair locksmith or main dealer can reprogram your keyfob to get it working again. If, in the unlikely event that resetting and repairing your key fob isn't working it may be time to replace it entirely.