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How to Fix a Key Fob That isn't Working

If your key fob does not work, you can fix it by following some simple steps. The first step is to make sure it's not the backup remote.

If your backup remote can lock and unlock the doors of your vehicle, it is most likely that the primary remote is not working. The most frequent causes of key problems with your repair car keys near me remote are issues with the circuitry or battery.

Battery

The battery in a key fob can be worn out over time. It is fairly easy to change out the battery, however it is crucial to make sure that you choose the correct type and you can consult your owner's manual, or contact the manufacturer's dealer to find out the kind of battery you need. It is recommended to inspect the battery compartment with care, as dead batteries sometimes leak harmful chemicals that can cause damage to the remote. If changing the battery doesn't fix the problem there may be additional issues that require professional attention. For instance, if the buttons seem to be stuck or broken, it may be necessary to disassemble the remote and rework its components. You can also try reprogramming the vehicle to recognize the new device.

Buttons

car key repair cost fobs can become dirty and worn-out from frequent use. It is not uncommon for buttons to stop working, or to require a hard push to make them work. This can be extremely frustrating particularly if you're away from home and you need to start your vehicle. Even broken or damaged buttons can be fixed with a little effort and materials you already have at home.

First, check that the batteries are correctly inserted and that the indentation on the back of the button has been filled. Take the remote apart and look over the circuit board. Examine for signs of rust or other indications that the buttons are worn or damaged, like missing paint that is conductive. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has worn-out or where conductive paint is missing. Don't rub too hard as this can damage the conductive paint, and block the button from firing when it is pressed.

Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place will allow the button to function again if this is the case. The same procedure can be used to restore functionality to any other loose connections in the fob.

Finally, if any of the buttons made of rubber on the front of the key fob have stopped working or require a hard press to work it is likely that the graphite disks at the back of the button are deteriorating and require replacement. It is usually done by rubbing a pencil over the disks. This should bring the button to life.

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

Circuitry

The circuit board of the remote control could be dirty regardless of whether the buttons on the key fob function or not. This problem can be resolved by a thorough inspection. The most common causes of dirty circuit boards are water and damaged cases. A broken case allows water and other debris to enter and short out the electronic components. Water can also get through pins and vias, which are small connectors on the board.

If you're skilled enough to open your key fob and don't mind making an mess, you can take the buttons out of their sockets and put in new ones. Also, it's worth checking the connections between the battery terminals. If they are loose, the buttons might not function properly or become stuck in their down position. Soldering the terminals and buttons to their original positions is often enough to return a malfunctioning fob to a working condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than remote fobs they are contained in, but they can be broken by a hole being that is drilled into them or over by a lawnmower or car keys repairs near me door handle. The failure of the fuse is usually to blame for non-remote chips failures.

If you're not confident opening the key fob, you can remove the circuitboard and utilize a multimeter to determine if the diode is working correctly. If you're unsure about doing this, Keyless entry Repair head to your local hardware store or Oreilly's and they'll usually have a RFID frequency tester that can let you know whether the key fob transmitting a signal.

Programming

Key fobs aren't indestructible and are susceptible to being damaged by a lot of things. They may lose their connection with the receiver inside your vehicle due to shocks or a low battery, which calls for changing the program. A professional auto locksmith or a main dealer will be able to reprogram your key fob to get it working again. In the rarer case that resetting or repairing your key fob doesn't work, it could be time to replace it completely.