How to Fix a Key Fob That isn't Working
If your key fob does not work, you can fix it by following a few simple steps. First, make sure that it's not the backup remote.
If your backup remote cannot unlock and lock the doors of your vehicle, it is most likely that the primary remote is not working. The majority of
car key button repair remote key malfunctions result from circuitry or battery problems.
Battery
The battery inside the key fob could get worn out over the course of time. It is quite simple to change out the battery, however it is essential to ensure that you choose the correct type that you can refer to your owner's manual, or contact the manufacturer's dealer to find out the kind of battery you require. It is also essential to examine the battery compartment as batteries that are not working properly can release caustic chemicals that can harm the remote. If replacing the battery does not fix the issue there could be other issues requiring professional attention. If buttons are stuck or broken, for example it could be necessary to disassemble the remote and rework each component. It is also possible to reprogramme the vehicle to recognize the new device.
Buttons
Key fobs can become dirty and worn out from frequent use. This is not atypical however it can cause buttons to cease working or require a hard press for them to function. This can be very frustrating, especially if you are away from home and you need to start your vehicle. Even malfunctioning or worn-out buttons can be fixed with a little time and tools you already have at home.
First, make sure that the batteries are correctly inserted and that the indentation on the back of the button is filled. Open the remote carefully and examine the circuit board. Check for indications of rust or other signs the buttons are damaged or worn out. For example, conductive paint may be missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that is damaged or has conductive paint missing. Don't rub too hard as this can damage the conductive paint, and block the button from firing when pressed.
Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back into place will allow the button to function again in the event that this is the situation. The same method can be used to restore function to any other loose connections in the fob.
If any of the rubber buttons located at the front of the keyfob isn't functioning or require to be pressing very hard, the graphite disks at the back of the button may have worn out and will require replacement. This is usually done by rubbing a pencil over the disks, which should bring the button back to life.
If none of this is useful, or if the button still doesn't respond to a hard push, then it may be the case that the circuit board itself is damaged. It is possible to fix the issue by cleaning and re-soldering your fob but you should also have another spare in case it doesn't work.
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 is often enough to resolve this issue. Water and broken cases are the most common causes of boards that are dirty. A damaged case can allow water and other debris to enter and short circuit the electronics. Water can also get through pins and vias, which are small connectors on the board.
If you're able to open your key fob, and aren't afraid of making an mess, you can remove the buttons from their sockets and put in new ones. It's also worth checking the battery terminal connections. If they're loose, the buttons might not work or even become stuck in their down position. Soldering the terminals, and putting the button back in their place is generally all it takes to restore
repair keys near me that are not in working condition.
Non-Remote Transponder Chips
The sealed non-remote chips are more durable than their remote fobs, but they can be cracked when a hole is made in them, or when a door handle for a
car key fob repair near me or lawnmowers is pushed over them. The failure of the fuse is usually to blame for non-remote chips failures.
If you're able to remove a sealed non-remote key fob and can tolerate the mess, you can remove the circuit board and check the fuse using an instrument to verify diode function. If you don't feel comfortable with this, you can visit your local Oreilly or hardware store and use their RF frequency tester. This will let you know whether the key fob transmits an RF signal.
Programming
repair key fobs aren't indestructible and are susceptible to being damaged through a variety of causes. They may lose their connection to the receiver in your
car key button repair due to shock or low battery, requiring the reprogramming. A professional auto locksmith, or the main dealer can reprogram the key fob and get it back up and running again. In the event that resetting and repairing your key fob fails it may be time to replace it completely.
