15 Pinterest Boards That Are The Best Of All Time About Remote Key Repair

How to Fix a Key Fob That isn't Working

If your key fob isn't functioning There are a few simple steps that can be taken to fix it. First, check to make sure it's not the backup remote.

If the backup is able to lock and unlock your car doors then there is likely an issue with the primary remote. Most car remote key failures are caused by battery or circuitry problems.

Battery

It is not unusual for the battery in the key fob for cars to get worn out. It is quite simple to replace the battery, however it is essential to make sure that you select the correct one; you can look in your owner's manual or contact the manufacturer's dealer to find out the kind of battery you require. It is recommended to inspect the battery compartment thoroughly because dead batteries can release caustic chemicals that could harm the remote. If changing the battery doesn't fix the issue there could be other issues that require professional attention. If the buttons are stuck or broken, for example it might be necessary to disassemble the remote and rework each component. You could also try reprogramming your car to recognize the new key fob.

Buttons

Through frequent use, key fobs may become worn and dirty. It is not common for buttons to stop working, or to require a hard press to get them working. This can be a huge hassle particularly if you're away from home and you need to start your car. Fortunately, even worn-out or malfunctioning buttons can often be fixed with just a bit of time and a few materials you might already have in the home.

First, verify that the batteries are properly inserted and that the indentation on the back of the button is filled. Then, carefully open the remote and inspect the circuit board. Check for key signs of corrosion or other indications that buttons are worn out or damaged, such as missing conductive paint. Use a Q-tip dipped into 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, as this can erode the conductive painting and prevent the button firing when pressed.

Check the battery connector's terminals for loose solder connections. Soldering them back into place can restore the button's functionality in the event that 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 are not functioning or require to be pressing extremely hard the graphite disks on the back of the button could have worn out and will need to replaced. This is usually done by rubbing a pencil on the disks, which will bring the button back to its original state.

If none of this is useful or if the button still does not respond to a firm press It could be because the circuit board itself has become damaged. This can be fixed by a quick clean, and replacing the solder, but it is best to have an extra fob in case this method fails for you.

Circuitry

The circuit board of your remote control could be dirty regardless of whether the buttons on the key fob work or not. A very thorough inspection will usually resolve this issue. Broken cases and water are the most frequent causes of dirty boards. A damaged case can let water and other debris into the circuit board, which can cause it to short. Water can also damage pins and small connectors on the board, referred to 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 solder new ones in their place. It's also worth checking the connections between battery terminals. If they are loose, the buttons may not work or even become stuck in their down position. Soldering the terminals and button's back into place is typically all that's required to return the key fob that is not working to working condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than the remote fobs that have them but they can still be broken by a hole being made in them or pushed over by a lawnmower or door handle for a car. Most of the time non-remote transponder chips fail, and this can be attributed to blowing fuses.

If you are not comfortable opening the key fob, you may remove the circuitboard and use a multimeter to determine if the diode is operating correctly. If you're not confident doing this, go to your local hardware store or Oreilly's and Car Remote Key Repair Shop Near Me they'll usually have a RF frequency tester that will let you know if the key fob is sending a signal.

Programming

Key fobs take a lot of abuse and aren't completely indestructible. They may lose their connection to the car's receiver due to shock or a low battery, requiring them to be reprogrammed. A professional auto locksmith or a main dealer can reprogram your key fob to get it functioning again. If resetting or replacing your keyfob does not work, you may need to replace it.