How to Fix a Key Fob That isn't Working

If your key fob does not 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 lock and unlock the doors of your car, then it is likely that the main remote isn't working. The majority of car remote key malfunctions result from circuitry or battery problems.

Battery

The battery inside the key fob may get worn out over the course of time. It is simple to replace batteries. However, it is important that you choose the right type. You can consult the owner's manual or contact the manufacturer to find out the correct type. It's also a good idea to examine the battery compartment with care since dead batteries may leak harmful chemicals that can damage the remote. If replacing the battery does not fix the problem there may be additional issues that require attention from a professional. If the buttons are broken or stuck, for example it might be necessary to remove the remote and rebuild each component. You could also try reprogramming your car to recognize the new key fob.

Buttons

Key fobs can get dirty and worn-out from frequent use. This is not atypical however it can cause buttons to stop working or require a very difficult press to get them to function. This can be a huge hassle, especially if you are away from home and you need to start your vehicle. Fortunately, even worn out or broken buttons can usually be fixed with a bit of time and some of the materials you may already have around the home.

First, verify that the batteries have been correctly installed and that the indentation at the back of the button is filled. Open the remote carefully and look over the circuit board. Examine for signs of rust or other indications that the buttons are worn or damaged, like missing paint that is conductive. Utilizing the Q-tip, dipped in rubbing alcohol, gently clean any membrane contacts that are worn or where conductive paint is missing. Be careful not to rub too hard, as this can erode the conductive paint and block the button from firing when it is the button is pressed.

Also, carefully check the battery connector's terminals to ensure any loose solder connections. If this is the case, connecting them back may restore function to the button. The same method can be used to restore function to any loose connections within the fob.

If any of the rubber buttons located at the front of the keyfob are not working or need to be press very hard, the graphite disks at the back of the button might have worn out and will require replacement. It is usually done by rubbing a pen across the disks. This will bring the button back to life.

If none of these solutions work, or if you still not be able to get the button respond when pressed hard, it is possible that the circuitry is failing. It is possible to fix this by cleaning and re-soldering your fob however, you should have an extra in case it does not work.

Circuitry

If the keys fob buttons are functioning the circuit board that is inside your remote might be dirty. A very thorough inspection will usually resolve this problem. Water and broken cases are the most common causes of dirty boards. A damaged case allows water and other debris to pass through and short out the electronics. Water can also get through pins and vias, which are small connectors on the board.

If you're handy enough to open up your key fob and don't mind a little mess, we can remove the solder from the buttons and solder new ones in their place. Also, you should check the connections between battery terminals. They can get very filthy and if they're not tight enough, the buttons may not work or may even remain in their down position. Soldering terminals and buttons back into place is usually enough to return a malfunctioning fob to a working condition.

Non-Remote transponder chips

The non-remote car key repair chips sealed in a sealed case are more durable than their remote fobs, however they are susceptible to cracking if a hole is drilled in them, or when a Door Key repair key fob Near Me (Webwiseportfolio.Com) handle for a emergency car key repair or lawnmower runs over them. The majority of non-remote transponder chips fail, and this could be attributed to a blown fuse.

If you're handy enough to remove the sealed key fob and can tolerate the mess, you can take off the circuit board and examine the fuse with a multimeter for proper diode function. If you're not sure with this, go to your local Oreilly or hardware store and test their RF frequency tester. This will let you know whether the key fob is sending signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged through a variety of causes. They may lose their connection to the receiver in your car due to shock or low battery, requiring them to be reprogrammed. A professional auto locksmith or main dealer can reprogram the key fob and get it back working again. In the event that resetting and fixing your key fob fails, it could be time to replace it all over again.