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How to Fix a Key Fob That isn't Working

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

If your backup remote can lock and unlock the doors of your car, it is most likely that the primary remote isn't working. Most car key remote repair near me remote key failures are caused by circuitry or battery issues.

Battery

The battery inside a key fob can wear out over time. It is easy to replace the battery. However it is essential that you choose the right kind. You can consult the owner's manual or contact the manufacturer to inquire about the right type. It is recommended to inspect the battery compartment thoroughly because dead batteries can release caustic chemicals that could damage the remote. If replacing the battery does not fix the problem there may be additional issues that require professional attention. If buttons are broken or stuck, for example it could be necessary to disassemble the remote and rework each component. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

Key fobs can become dirty and worn out from repeated use. It is not common to have buttons stop functioning, or require a long press to get them working. This can be frustrating particularly when you're away from home and you need to start your car key And repair. Even malfunctioning or worn-out buttons can be fixed with a little time and the tools you already have at home.

First, check that the batteries have been correctly inserted and that the indentation at the back of the button has been filled. Then, carefully remove the remote and look at the circuit board. Check for signs of corrosion or other indications that buttons are worn out or damaged, such as missing conductive paint. Use a Q-tip dipped in alcohol, gently clean any membrane contacts that are worn or where conductive paint is missing. Do not rub too vigorously as this can damage the conductive paint, and block the button from firing when it is pressed.

Also, carefully check the battery connector's terminals to ensure any loose solder connections. Soldering them back in place will restore the button's functionality If this is the case. You can follow the same process to restore functionality to any other loose connection within the fob.

If any of the rubber buttons on the front of the keyfob are not working or need to be pressed very hard, the graphite disks at the back of the button could have worn out and require replacement. You can 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 are unable to get the button to respond when pressed hard, it is possible that the circuitry has failed. It is possible to fix the issue by cleaning and re-soldering the fob but you should also have another spare in case it does not work.

Circuitry

The circuit board in your remote control could be dirty, regardless of whether the buttons on the key fob work or not. A thorough examination will usually resolve this problem. Broken cases and water are the most common causes of dirty boards. A broken case can allow water and other debris to enter the circuit board, causing it to short out. Water can also eat away at pins and connectors that are small on the board, which are known as 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 put in new ones. It's also worth checking the battery terminal connections. They can become very dirty and if they're loose the buttons may not work or may even remain in their down position. Soldering the terminals and button's back in place is usually all it takes to restore keys that are not in working order.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than the remote fobs they are contained in, but they can still be broken by a hole being drilled into them or run over by a lawnmower or car door handle. Most of the time, non-remote transponder chips fail, and this can be attributed to an exploded fuse.

If you're handy enough to remove a key fob that is sealed and are able to bear the mess, you can easily remove the circuit board and check the fuse using an instrument to verify diode function. If you're not comfortable with this, you can visit your local Oreilly or hardware store and use their RF frequency tester. This will inform you whether the key repair service fob is sending signals.

Programming

Key fobs are subject to many abuses and aren't completely indestructible. They can break their connection with the receiver inside your vehicle due to shocks or low battery, which calls for changing the program. A professional auto locksmith or a dealer in the main, can reprogram your keyfob and get it working again. In the rarer case that resetting and repairing your key fob doesn't work, it could be time to replace it entirely.