How to Fix a Key Fob That isn't Working
If your key fob isn't working There are a few simple steps that can fix it. First, ensure that key fob repair near me 's not the backup remote.
If your backup remote cannot lock and unlock the doors of your vehicle, it is most likely that the primary remote isn't functioning. The most common causes of key malfunctions for car remotes are circuitry or battery issues.
Battery
The battery in a key fob can wear out over time. It is fairly easy to change out the battery, however it is crucial to ensure you use the right type that you can refer to your owner's manual, or contact the dealer of the manufacturer to find out the kind of battery you need. It is also a good idea to inspect the battery compartment thoroughly, as dead batteries sometimes leak caustic chemicals that can damage the remote. If changing the battery doesn't solve the issue there could be other issues that require attention from a professional. If the buttons are damaged or stuck, for example, it may be necessary take the remote apart and rework each component. You can also try reprogramming the vehicle to recognize the new remote.
Buttons
Key fobs can become filthy and worn out due to repeated use. This is not unusual however, it can cause buttons to stop working or require a hard press for them to work. This can be frustrating particularly when you're away from home and you need to turn on your car. Fortunately, even worn-out or broken buttons can usually be fixed with just a bit of time and some of the materials you may already have around the home.
First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully remove the remote and examine the circuit board. Check for signs of rust or other indications that the buttons have been worn or damaged. For example the paint that conducts electricity could be missing. 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. Be careful not to rub too hard, since this could cause damage to the conductive paint and block the button from firing when it is it is pressed.
Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place can restore the button's functionality if this is the situation. You can follow the same method to restore functionality to any other loose connection within the fob.
If, for instance, any of the rubber buttons on the front of the key fob aren't working or require a very hard press to work, it is likely that the graphite disks that are on the back of the button are deteriorating and need to be replaced. You can do this by rubbing a pen across the disks. This should bring the button back to life.
If none of these solutions work or you cannot get the button to respond when you press it hard, it is possible that the circuitry has failed. It is possible to fix the issue by cleaning and re-soldering the button however, you should have another spare in case it does not work.
Circuitry
If the key fob buttons are working the circuit board that is inside your remote might be dirty. The issue can be solved through a thorough examination. The most common causes of dirty circuit boards is water and broken cases. A damaged case could allow water and other debris to enter the circuit board, which can cause it to short out. Water can also get through pins and vias, which are the tiny connectors on the board.
If you're handy enough to remove your key fob and don't mind a little mess, we can de-solder the buttons and solder new ones in their place. It's also worth looking at the battery terminal connections. They can become extremely dirty and if they're loose, the buttons might not work or even stay in their down position. Soldering the terminals and button's back in their place is generally all it takes to restore keys that are not in working order.
Non-Remote Transponder Chips
The non-remote chips that are sealed are more durable than remote fobs, but they can be cracked when a hole is made in them or if a car door handle or lawnmower runs over them. The majority of non-remote transponder chips fail, and this can be attributed to blowing fuses.
If you are not comfortable opening the key fob, you can remove the circuitboard and utilize a multimeter to verify that the diode is functioning correctly. If you're not comfortable doing this, visit your local hardware store or Oreilly's, and they'll usually have an RFID frequency tester that can determine if the key fob is transmitting a signal.
Programming
Key fobs are not indestructible and can be damaged by a variety of factors. They may lose their connection with the receiver in your vehicle due to shocks or low battery, which calls for changing the program. A professional auto locksmith or main dealer can reprogram your key fob to get it back up and running. If resetting or repairing your keyfob does not work it is possible to replace it.
