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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 fix it. First, make sure that it's not your backup remote.

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

Battery

The battery inside the key fob could be worn out over time. It is simple to replace the battery. However, it is important that you use the correct type. You can check your owner's guide or contact the manufacturer to determine the right kind. It is also essential to inspect the battery compartment, as batteries that are not working properly can release caustic chemicals which can damage the remote. If replacing the battery does not fix the issue, there may be other issues requiring professional attention. If buttons are damaged or stuck, for example it could be necessary to remove the remote key repair and rebuild each component. You could also try reprogramming your vehicle to recognize the new key repair service fob.

Buttons

Due to frequent use, key fobs could become worn and dirty. It is not common for buttons to stop working, or to require a hard push to make them work. This can be very frustrating, especially when you are away from home and 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 might already have in the house.

First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open up the remote key fob repairs and look at the circuit board. Examine for signs of rust or other indications that the buttons are worn or damaged, such as missing the conductive paint. Then, using a Q-tip that has been dipped in alcohol to gently clean any membrane contacts that are damaged or where conductive paint is missing. Avoid rubbing too hard, as this can erode the conductive paint and stop the button firing when pressed.

Check the battery connector terminals for loose solder connections. If this is the case, simply soldering them back in place may restore functionality to the button. The same procedure can be used to restore functionality to any other loose connections within the fob.

If, for instance, any of the rubber buttons on the front of the key fob aren't working or require a long press to function, it is likely that the graphite disks on the back of the button are wearing down and need to be replaced. This is usually done by rubbing a pencil across the disks, which will bring the button back to its original state.

If none of these solutions work, or if you still cannot get the button to respond when you press it hard, it could be that the circuitry has failed. It is possible to fix this by cleaning and re-soldering the fob however, you should have a spare in case it doesn't work.

Circuitry

The circuit board in the remote control could be dirty, regardless of whether the buttons on the key fob work or not. A thorough inspection will usually resolve this problem. The most common causes of dirty circuit boards is water and damaged cases. A damaged case can allow water and other debris to pass through and short circuit the electronics. Water can also eat through pins and vias, which are tiny connectors that are found on the board.

If you're able to remove your key fob, and you're not afraid of a little mess, we can remove the solder from the buttons and then solder new ones in their place. 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 back to their original positions is often enough to restore a non-working fob to a working condition.

Non-remote control car key repairs transponder chips

The sealed non-remote chips are more durable than their remote fobs, however they are susceptible to cracking if a hole is drilled in them, or when a door handle for a car or lawnmowers plows over them. Failures of the fuse are typically the cause of non-remote chip failures.

If you're able to open a key fob that is sealed and can tolerate the mess, you can easily remove the circuit board and examine the fuse using a multimeter for proper diode function. If you're not comfortable doing this, head to your local hardware store or the Oreilly's and they will usually have a RF frequency tester that will let you know whether the key fob sending signals.

Programming

Key fobs are subject to lots of abuse and aren't completely indestructible. They may lose their connection with the receiver in your vehicle due to shocks or a low battery, requiring changing the program. A professional auto locksmith or the main dealer can reprogram the keyfob to get it functioning again. If resetting or replacing your key fob fails, you may need to replace it.