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How to Fix a Key Fob That isn't Working

If your key fob doesn't work, you can fix it with just a few steps. First, check to make sure it's not the backup remote.

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

Battery

The battery in the key fob may wear out over time. It is relatively easy to change out the battery, however it is crucial to ensure that you choose the correct type; you can look in your owner's manual or contact the dealer for the manufacturer to find out the kind of battery you require. It is recommended to inspect the battery compartment carefully because dead batteries can release caustic chemicals that could damage the remote. If replacing the batteries doesn't solve the problem it could be because there are other issues that require attention by a professional. If buttons are stuck or broken, for example, it may be necessary take the remote apart and rework each component. You could also try reprogramming your car to recognize the new repair key fob fob.

Buttons

Key fobs may become dirty and worn-out from frequent use. This is not atypical however, it can cause buttons to stop functioning or require a long press to work. This can be very frustrating, especially when you are away from home and you need to turn on your car. Even malfunctioning or worn-out buttons can be fixed with a little effort and tools you already have at home.

First, check that the batteries are correctly placed and keyless entry repairs (recommended you read) 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 indications that the buttons are worn or damaged, such as missing the conductive paint. Use a Q-tip, dipped in alcohol to gently clean any membrane contact that is worn-out or where conductive paint is missing. Don't rub too hard, as this could erode the conductive paint and stop the button from firing when pressed.

Check the battery connector's terminals carefully for any loose solder connections. If this is the case, simply connecting them back may restore functionality to the button. You can apply the same method to restore functionality to any other loose connection in the fob key repair near me.

If any of the rubber buttons at the front of the keyfob isn't working or need to be pressed very 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 will 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 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 button but you should also have another spare in case it doesn't work.

Circuitry

If the key fob buttons function the circuit board in your remote key repairs might be dirty. The issue can be solved through a thorough examination. The most frequent causes of dirty circuit boards is water and damaged cases. A damaged case can allow water and other debris to pass through and short out the electronic components. Water can also get through pins and vias, which are tiny connectors that are found on the board.

If you're handy enough to open your key fob, and you're not afraid of making a mess, we can de-solder the buttons and put new ones in their place. Also, it's worth checking the connections between battery terminals. If they're loose, the buttons might not function properly or become stuck in their down position. Soldering terminals and buttons back to their proper positions is usually 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 that have them but they can be cracked by a hole made in them or pushed over by a lawnmowers or car 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 may take the circuit board off and use a multimeter to verify that the diode is working correctly. If you're not comfortable doing this, head to your local hardware store or Oreilly's, and they will usually have a RFID frequency tester that can tell you if the key fob is transmitting a signal.

Programming

Key fobs take a lot of abuse and aren't completely indestructible. They can break their connection with the receiver in your vehicle because of shocks or a low battery, which calls for the reprogramming. A professional auto locksmith or dealer will be able to reprogram your key fob and get it working again. If resetting or fixing your keyfob does not work it may be necessary to replace it.