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How to Fix a Key Fob That isn't Working

If your key fob does not work then you can fix it by following a few simple steps. The first step is to be sure that it's not the backup remote.

If the backup is able to lock and unlock your car doors then there is likely an issue with the main remote. Most problems with car remote keys result from battery or circuitry problems.

Battery

It is not uncommon to find a battery on the key fob for cars to wear out. It is quite simple to replace batteries, but it is crucial to ensure you use the right type that you can refer to the owner's manual or talk to the dealer of the manufacturer to find out what kind of battery you require. It's recommended to examine the battery compartment thoroughly because dead batteries can leak harmful chemicals that can cause damage to the remote. If replacing the batteries doesn't solve the issue it could be because there are other issues that require professional attention. If buttons are stuck or broken, 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 get dirty and worn out from frequent use. It is not unusual for buttons to stop functioning, or require a hefty push to make them work. This can be a huge hassle, especially if you are away from home and you need to start your vehicle. Fortunately, even worn-out or malfunctioning buttons can often be fixed with a bit of time and a few items you may already have around the house.

First, verify that the batteries are properly inserted and that the indentation at the back of the button has been filled. Then, carefully open up the remote and examine the circuit board. Check for signs of corrosion or other indications that the buttons are worn or damaged, such as missing the conductive paint. Utilizing a Q-tip that has been dipped in alcohol to gently clean any membrane contacts that are worn or have conductive paint missing. Do not rub too vigorously, as this could erode the conductive paint, and block the button from firing when it is pressed.

Also, make sure to inspect the battery connector terminals for a loose solder connection. Soldering them back to their original position will restore the button's functionality If this is the case. The same method can be used to restore functionality to any other loose connections inside the fob.

If, for instance, any of the buttons made of rubber on the front of the key fob stop working or require a difficult press to function, it is likely that the graphite disks on the back of the button are wearing down and require replacement. You can do this by rubbing a pencil over the disks. This should bring the button back to life.

If none of these solutions work, or if you still cannot get the button to respond when pressed hard, it is possible that the circuitry is failing. This can be fixed by a quick clean and replacing the solder, but it is ideal to have a spare fob available in the event this method doesn't work for you.

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 is often enough to resolve this problem. The most common causes for dirty circuit boards are water and damaged cases. A broken case allows water and other debris to enter and short circuit the electronics. Water can also damage pins and small connectors on the board called via's.

If you're able to open up your key fob and don't mind some mess, we can de-solder the buttons and put new ones in their place. It's also worth examining the battery terminal connections. If they are loose, the buttons might not function or get stuck in their down position. Soldering the terminals and buttons back in their place is generally all it takes to restore the key fob that is not working to functioning condition.

Non-Remote transponder chips

Sealed non-remote transponder chip are more durable than the remote fobs they are contained in, but they can be cracked by a hole drilled into them or run over by a lawnmowers blade or door handle for a repair car key button repair key remote (henson-mccormick.technetbloggers.de). Most of the time non-remote transponder chip malfunctions can be attributed to an exploded fuse.

If you're handy enough to open up 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 confident doing this, head to your local hardware store or Oreilly's and they will usually have an RFID frequency tester that can let you know if the key fob is sending a signal.

Programming

key fob repairs near me fobs are not indestructible and can be damaged by a variety of factors. They can lose their pairing to the receiver in your car key button repair due to shock or low battery, which requires them to be reprogrammed. A professional auto locksmith or a main dealer can reprogram your key fob to get it working again. In the event that resetting and repairing your key fob fails it may be time to replace it all over again.