How to Fix a Key Fob That isn't Working
If your key fob isn't working, a few easy steps can fix it. First, ensure that G28CarKeys 's not your backup remote.
If your backup remote cannot unlock and lock the doors of your vehicle, it is most likely that the primary remote isn't working. The majority of car remote key malfunctions are caused by circuitry or battery issues.
Battery
It is not uncommon to find a battery on the key fob for cars to degrade. It is simple to replace a battery. However it is crucial that you choose the right type. You can consult your owner's guide or contact the manufacturer to determine the right type. It is also important to examine the battery compartment, since dead batteries can leak caustic chemicals that can harm the remote. If changing the battery doesn't solve the issue there could be other issues requiring professional attention. If the buttons are damaged or stuck for instance, it may be necessary remove the remote and rebuild each component. It is also possible to reprogramme the vehicle to recognize the new device.
Buttons
From frequent use, key fobs can get dirty and worn. It is not uncommon for buttons to stop functioning, or require a hard press to get them working. This can be very frustrating particularly if you're out of town and need to start your vehicle. Even malfunctioning or worn-out buttons can be fixed with a little time and materials you already have at home.
First, check that the batteries are correctly installed and that the indentation at the back of the button is filled. Then, open the remote with care and examine the circuit board. Examine for evidence of rust, or other indications that the buttons are damaged or worn out. For example there could be conductive paint missing. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has worn-out or has conductive paint missing. Be careful not to rub too hard, because this could damage the conductive painting and prevent the button from firing when the button is pressed.
Examine the battery connector's terminals for loose solder connections. If this is the case, connecting them back may restore functionality to the button. You can apply the same procedure to restore functionality to any other loose connection in the fob.
If any of the rubber buttons located at the front of the keyfob are not working or require being pressing very hard the graphite disks at the back of the button may have worn out and require replacement. You can usually do this by rubbing a pencil over the disks. This should bring the button to life.
If none of these solutions work or you are unable to get the button to respond when pressed hard, it could be that the circuitry is failing. It is possible to fix this by a quick clean and replacing the solder, but it is best to have an extra fob available in the event this method fails for you.
Circuitry
Whether or not the key fob buttons are working, the circuit board inside the remote could be dirty. This problem can be resolved by a thorough inspection. Broken cases and water are the most common causes of boards that are dirty. A damaged case could allow water and other debris to enter the circuit board, causing it to short out. Water can also eat away at pins and small connectors on the board, which are known as via's.
If you're able to open up your key fob and aren't afraid of making a mess, we can de-solder the buttons and then solder new ones in their place. It's also worth checking the battery terminal connections. They can become extremely filthy and if they're not tight enough, the buttons might not function or even stay in their down position. Soldering the terminals and buttons back in their place is generally all that's required to return a non-working key fob to working order.
Non-Remote transponder chips
Sealed non-remote transponder chips are much more durable than the remote fobs that have them but they can be broken by a hole being drilled into them or run over by a lawnmower or door handle for a car. Most of the time, non-remote transponder chip malfunctions could be attributed to blowing fuses.
If you're handy enough to remove a sealed non-remote key fob and can tolerate the mess, you can easily remove the circuit board and check the fuse using a multimeter to ensure that it is functioning as intended. function. If you're unsure about doing this, visit your local hardware store or the Oreilly's and they usually have a RFID frequency tester that can determine whether the key fob transmitting a signal.
Programming
Key fobs are subject to many abuses and aren't indestructible. They can lose their pairing with the receiver inside your vehicle due to shocks or low-battery, which requires changing the program. A professional auto locksmith or a dealer in the main can reprogram your key fob and get it back functioning again. If resetting or replacing the keyfob is not working it is possible to replace it.