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How to Fix a Key Fob That isn't Working

If your key fob won't work then you can fix it with just a few steps. First, check to make sure it's not the backup Remote Key Repair.

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

Battery

The battery inside a key fob can wear out over time. It is relatively easy to replace a battery, remote key repairs although it is essential to ensure you choose the correct type and you can consult the owner's manual or talk to the dealer of the manufacturer to find out the kind of battery you need. It is also important to inspect the battery compartment, as batteries that are not working properly can release caustic chemicals which can damage the remote. If replacing the batteries doesn't solve the issue it could be that there are other issues that require professional attention. If buttons are broken or stuck, for example it could be necessary to take the remote apart and rework each component. You can also try reprogramming the vehicle to recognize the new remote.

Buttons

Due to frequent use, key repair near me fobs may get dirty and worn. This is not uncommon however, it can cause buttons to cease functioning or require a difficult press to get them to work. This can be extremely frustrating, especially if you are away from home and need to start your car. Fortunately, even worn out or broken buttons can usually be fixed with a little time and a few items you may already have around the home.

First, check that the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully remove the remote and inspect the circuit board. Check for evidence of rust, or other indications that the buttons are damaged or worn out. For example, conductive paint may be missing. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that has become damaged or has conductive paint missing. Avoid rubbing too hard, since this could cause damage to the conductive painting and prevent the button from firing when the button is pressed.

Also, make sure to inspect the battery connector's terminals to ensure any loose solder connections. If this is the case, reconnecting them may restore functionality to the button. The same method can be used to restore functionality to any other loose connections within the fob.

If any of the rubber buttons at the front of the keyfob are not working or need to be press extremely hard the graphite disks at the back of the button might have worn out and will require replacement. This is usually done by rubbing a pencil across the disks, which should bring the button back to life.

If none of these solutions work or you are unable to get the button to respond when pressed hard, it is possible that the circuitry has failed. It is possible to fix this by a quick clean, and refitting, but it's recommended to have an additional fob available in the event this method does not work for you.

Circuitry

The circuit board inside your remote control could be dirty, regardless of whether the buttons on the key fob function or not. A very thorough inspection will usually resolve this issue. The most frequent causes of dirty circuit boards are water and damaged cases. A damaged case can allow water and other debris to get in and short circuit the electronics. Water can also damage pins and vias, which are small connectors on the board.

If you're able to remove your key fob and don't mind a little mess, we can remove the solder from the buttons and put new ones in their place. It's also worth checking the connections between battery terminals. They can become extremely dirty and if they're loose the buttons might not function or even stay in their down position. Soldering the terminals and button's back in place is usually all it takes to restore the key fob that is not working to working 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 that is drilled into them or over by a lawnmowers blade or car door handle. The failure of the fuse is usually the cause of non-remote chip failures.

If you're not comfortable opening the key fob, you may remove the circuitboard and use a multimeter to check that the diode is operating correctly. If you're unsure about doing this, visit your local hardware store or Oreilly's and they will usually have a radio frequency tester that can let you know whether the key fob transmitting a signal.

Programming

Key fobs are not indestructible and can be damaged through a variety of causes. They may lose their connection with the receiver inside your vehicle due to shocks or a low-battery, which requires changing the program. A professional auto locksmith or a dealer in the main, can reprogram your keyfob and get it working again. If resetting or repairing your keyfob does not work it may be necessary to replace it.