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How to Fix a Key Fob That isn't Working

If your key fob isn't functioning There are a few simple steps that can be taken to fix it. First, make sure that it's not your backup remote.

If your backup remote cannot lock and unlock the doors of your vehicle, it is most likely that the primary remote is not working. Most car key fob repair remote key failures are caused by circuitry or battery problems.

Battery

It is not unusual to find a battery on a car remote key repair key fob to degrade. It is easy to replace the battery. However, it is important to select the right kind. You can check your owner's manual or call the manufacturer to determine the right type. It is also crucial to check the battery compartment, as batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the battery doesn't solve the issue, there may be other issues that require attention from a professional. For instance, if buttons seem stuck or damaged It may be necessary to take the remote apart and rework its parts. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

Due to repeated use, key fobs may get dirty and worn. This is not uncommon, but it can cause buttons to stop functioning or require a long press to function. This can be a huge hassle, remote key Repairs 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 little time and some of the materials you have in the house.

First, verify that the batteries have been correctly installed and that the indentation at the back of the button is filled. Then, carefully open the remote and inspect the circuit board. Examine for indications of rust or other indications that the buttons are damaged or worn. For instance there could be conductive paint missing. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that has worn-out or where conductive paint is missing. Avoid rubbing too hard because this could damage the conductive paint and block the button from firing when it is the button is pressed.

Also, make sure to inspect the battery connector's terminals for any loose solder connections. If this is the case, connecting them back could restore function to the button. You can apply the same procedure to restore functionality to any other loose connection within the fob.

If any of the rubber buttons located at the front of the keyfob isn't functioning or require to be pressed extremely hard the graphite disks at the back of the button may have worn out and require replacement. This can usually be done by rubbing a pencil over 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 is possible that the circuitry has failed. It is possible to fix this 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

If the key fob buttons are working the circuit board that is inside your remote might be dirty. A thorough inspection is usually enough to fix this issue. Broken cases and water are the most frequent causes of dirty boards. A broken case can allow water and other debris into the circuit board, which can cause it to short. Water can also damage pins and connectors on the board, which are known as via's.

If you're handy enough to open your key fob, and you're not afraid of some mess, we can de-solder the buttons and put new ones in their place. It's also worth checking the connections between the battery terminals. If they're loose, the buttons could not work or even become stuck in their down position. Soldering the terminals and buttons to their original positions is often enough to restore a non-working fob to a working condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chip are more durable than the remote fobs that contain them however they are still susceptible to being broken by a hole being that is drilled into them or over near By a lawnmower or door handle for a car key fob repair. The failure of the fuse is usually the cause of non-remote chip failures.

If you're not confident 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, head to your local hardware store or Oreilly's and they'll usually have a radio frequency tester that can let you know if the key fob is sending a signal.

Programming

Key fobs take lots of abuse and aren't impervious to damage. They can lose their pairing to the receiver in your car key fob repair because of shock or a low battery, which calls for the reprogramming. A professional auto locksmith, or the main dealer can reprogram your keyfob to get it functioning again. In the rarer case that resetting and fixing your key fob doesn't work it may be time to replace it entirely.