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How to Fix a Key Fob That isn't Working

If your key fob does not work then you can fix it with a few simple steps. First, check to make sure it's not your backup remote.

If your backup remote can lock and unlock the doors of your car, then it is most likely that the primary remote isn't functioning. The most common causes of key malfunctions for car keys repair near me remotes are circuitry or battery issues.

Battery

The battery in the key fob could wear out over time. It is fairly easy to change out a battery, although it is essential to ensure you use the right type; you can look in your owner's manual or contact the dealer of the manufacturer to find out what kind of battery you need. It's also a good idea to inspect the battery compartment carefully since dead batteries may release caustic chemicals that could damage the remote. If replacing the batteries doesn't solve the issue it could be because there are other issues that require attention by a professional. For example, if buttons seem to be stuck or broken, it may be necessary to take the remote apart and rework its parts. You can also try reprogramming the vehicle to recognize the new remote.

Buttons

Through repeated use, key fobs can become worn and dirty. This is not atypical however, it can cause buttons to cease functioning or require a hard press for them to function. This can be a hassle, especially when you are away from your home and have to turn on your car key and repair (they said). Fortunately, even worn-out or damaged buttons can be fixed with a little time and a few items you may already have around the house.

First, check that the batteries are properly placed and that the indentation at the back of the button is filled. Take the remote apart and examine the circuit board. Examine for signs of rust or other signs that buttons are worn out or damaged, like missing conductive paint. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has become damaged or has conductive paint missing. Avoid rubbing too hard because this could damage the conductive paint and stop the button firing when the button is pressed.

Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place will restore the button's functionality if this is the case. You can follow the same method to restore functionality to any other loose connection in the fob.

If any of the rubber buttons at the front of the keyfob isn't working or need to be pressing extremely hard the graphite disks on the back of the button may have worn out and will require replacement. This can usually be done by rubbing a pencil across the disks, which will bring the button back to life.

If none of these solutions work or you not be able to get the button respond when pressed hard, it is possible that the circuitry has failed. It is possible to fix this issue by cleaning and re-soldering the button but you should also have an extra in case it does not work.

Circuitry

The circuit board of your remote control could be dirty, regardless of whether the buttons on the key fob are working or not. A thorough examination is usually enough to fix this problem. Broken cases and water are the most frequent causes of dirty boards. A broken case can let water and other debris to enter the circuit board, which can cause it to short out. Water can also damage pins and small connectors on the board called via's.

If you're skilled enough to open your key fob, and you 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 battery terminals. If they're loose, the buttons could not work or even become stuck in their down position. Soldering the terminals, and putting the button back in their place is generally all that's needed to return a non-working key fob to functioning condition.

Non-Remote transponder chips

Sealed non-remote transponder chips are much more durable than the remote fobs that have them but they can be cracked by a hole that is drilled into them or over by a lawnmowers blade or door handle for a car. Most of the time, non-remote transponder chip failures could be attributed to an exploded fuse.

If you are not comfortable opening the key fob, you can remove the circuitboard and utilize a multimeter to check that the diode is working correctly. If you're not comfortable doing this, visit your local hardware store or Oreilly's, and they will usually have a RFID frequency tester that can let you know whether the key fob is sending a signal.

Programming

Key fobs aren't indestructible and are susceptible to damage by a variety of factors. They may lose their connection with the receiver inside your vehicle due to shocks or low-battery, car key and repair which requires changing the program. A professional auto locksmith, or the main dealer, can reprogram your keyfob and get it up and running again. In the event that resetting and fixing your key fob fails, it could be time to replace it completely.