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How to Fix a Key Fob That isn't Working

If your key fob does not work and you're not sure why, you can fix it with a few simple steps. The first step is to make sure it's not the backup remote.

If the backup is able to lock and unlock your car door, then there's a likely issue with the primary remote. ignition key repair near me of car remote key failure are circuitry or battery issues.

Battery

The battery inside a key fob can wear out over time. It is quite simple to replace the battery, however it is essential to make sure that you use the right type and you can consult the owner's manual or talk to the dealer for the manufacturer to find out the kind of battery you require. It is also crucial to check the battery compartment, as dead batteries can leak caustic chemicals that can harm the remote. If replacing the battery does not solve the issue there may be additional issues requiring professional attention. If buttons are stuck or broken, for example it might be necessary to remove the remote and rebuild each component. You could also try reprogramming your vehicle to recognize the new key fob.

Buttons

Through repeated use, key fobs may get dirty and worn. It is not uncommon for buttons to stop functioning, or require a hard push to make them work. This can be a huge hassle, especially if you are away from home and you need to start your car. Fortunately, even worn out or damaged buttons can be fixed with a little time and a few items you have in the house.

First, check that the batteries are correctly inserted and that the indentation on the back of the button has been filled. Then, open the remote with care and inspect the circuit board. Examine for signs of rust or other signs the buttons are damaged or worn. For example there could be conductive paint missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has worn out or has conductive paint missing. Avoid rubbing too hard, as this can erode the conductive paint and block the button from firing when it is pressed.

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

Finally, if any of the buttons made of rubber that are on the front of the key fob have stopped functioning or require a difficult press to function it is likely that the graphite disks at the back of the button are wearing down and require replacement. This is usually done by rubbing a pencil over the disks, which should bring the button back to life.





If none of these solutions work or you cannot get the button to respond when pressed hard, it is possible that the circuitry has failed. This can sometimes be repaired by a quick clean and refitting, but it's ideal to have a spare fob on hand in the event that this method fails for you.

Circuitry

If the keys fob buttons are functioning, the circuit board inside your remote might be dirty. The issue can be solved through a thorough examination. Broken cases and water are the most common causes of dirty boards. A damaged case can allow water and other debris to enter and short circuit the electronic components. Water can also destroy pins and small connectors on the board, which are known as via's.

If you're able to open your key fob and don't mind making a mess, we can take the buttons out of their sockets and put in new ones. Also, it's worth checking the connections between the battery terminals. They can become extremely filthy and if they're not tight enough, the buttons might not work or even stick in their down position. Soldering the terminals and buttons back into place is typically all it takes to restore keys that are not in working order.

Non-Remote Transponder Chips

The non-remote chips sealed in a sealed case are more durable than their remote fobs, but they can be cracked in the event of a hole being drilled in them or in the event that a door handle of a car or lawnmowers plows over them. Most of the time, non-remote transponder chip malfunctions can be attributed to an exploded fuse.

If you're able to open up a key fob that is sealed and are able to bear the mess, you can take off the circuit board and check the fuse using a multimeter to ensure that it is functioning as intended. function. If you're not comfortable doing this, go to your local hardware store or Oreilly's, and they'll usually have a radio frequency tester that can tell you whether the key fob is sending a signal.

Programming

Key fobs aren't indestructible and can be damaged through a variety of causes. They can lose their pairing to the receiver in your car due to shock or low battery, which calls for them to be reprogrammed. A professional auto locksmith or main dealer, can reprogram your key fob and get it back working again. If, in the unlikely event that resetting or repairing your key fob isn't working it may be time to replace it all over again.