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How to Fix a Key Fob That isn't Working

If your key fob doesn't work then you can fix it with some simple steps. The first step is to be sure it's not the backup remote.

If your backup remote cannot unlock and lock the doors of your car, then it is likely that the main remote isn't functioning. Most car remote key failures result from circuitry or battery problems.

Battery

It is not unusual for the battery inside the key fob for cars to wear out. It is quite simple to replace batteries, but it is crucial to make sure that you use the right type and you can consult your owner's manual, or contact the manufacturer's dealer to find out what kind of battery you need. It is recommended to inspect the battery compartment thoroughly, as dead batteries sometimes leak harmful chemicals that can harm the remote. If replacing the battery does not solve the issue, there may be other issues requiring professional attention. For example, if buttons appear stuck or damaged it could be necessary to disassemble the remote and rework its parts. You could also try reprogramming your car to recognize the new key fob.

Buttons

Through repeated use, key fobs may become worn and dirty. It is not common for buttons to stop working, or to require a hard press to get them working. This can be frustrating, especially when you are away from home and need to start your car. Even malfunctioning or worn-out buttons can be fixed with a little effort and tools you already have at home.

First, verify that the batteries have been correctly placed and that the indentation on the back of the button is filled. Then, open the remote with care and examine the circuit board. Check for signs of corrosion or other signs that the buttons are worn out or damaged, like missing the conductive paint. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that has become worn out or where conductive painting is missing. Don't rub too hard, as this could erode the conductive paint, and block the button from firing when it is pressed.

Check the battery connector terminals for loose solder connections. If this is the case, simply soldering them back in place may bring back function to the button. You can use the same method to restore functionality to any other loose connection inside the fob.

Finally, if any of the rubber buttons on the front of the key fob aren't functioning or require a difficult press to function it is likely the graphite disks that are on the back of the button are wearing down and need to be replaced. This is usually done by rubbing a pencil over the disks. This should bring the button back to its original state.

If none of these solutions work or you not be able to get the button respond when pressed hard, it could be that the circuitry has failed. It is possible to fix this by a quick clean and re-soldering, but it is ideal to have a spare fob in case this method does not work for you.

Circuitry

If the key fob buttons function the circuit board that is inside your remote might be dirty. A thorough inspection is often enough to resolve this issue. Water and broken cases are the most frequent causes of dirty boards. A damaged case could allow water and other debris to enter the circuit board, causing it to short out. Water can also damage pins and small connectors on the board called via's.

If you're able to remove your key fob and aren't afraid of a little mess, we can de-solder the buttons and put new ones in their place. Also, you should check the connections between the battery terminals. If they're loose, the buttons could not function or get stuck 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 condition.

key repair near me -Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than the remote fobs that have them but they can still be cracked by a hole made in them or pushed over by a lawnmower or door handle for a car. The majority of non-remote transponder chip failures can be attributed to a blown fuse.

If you're handy enough to open the sealed key fob and are able to bear the mess, you can remove 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 an RF frequency tester that will tell you whether the key fob is sending signals.

Programming

Key fobs take many abuses and aren't completely indestructible. They may lose their connection with the receiver inside your vehicle due to shocks or low-battery, which requires changing the program. A professional auto locksmith or dealer can reprogram your key fob to get it functioning again. If, in the unlikely event that resetting or repairing your key fob doesn't work it may be time to replace it completely.