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 be taken to fix it. The first step is to be sure it's not the backup remote.
If the backup is able to lock and unlock your car doors, it is most likely an issue with the main remote. The most common causes of car remote key failure are battery or circuitry issues.
Battery
The battery inside the key fob could wear out over time. It is relatively easy to change out a battery, although it is important to ensure you choose the correct type that you can refer to your owner's manual, or contact the dealer of the manufacturer to determine the type of battery you require. It's recommended to inspect the battery compartment thoroughly because dead batteries can leak harmful chemicals that can harm the remote. If changing the battery doesn't fix the issue there could be other issues that require attention from a professional. If the buttons are stuck or broken for instance, it may be necessary remove the remote and rebuild each component. You can also try reprogramming your car to recognize the new key fob.
Buttons
Due to frequent use, key fobs can get dirty and worn. It is not uncommon for buttons to cease working, or to require a hard press to make them work. This can be very frustrating especially if you're out of town and need to start your car. Fortunately, even worn out or damaged buttons can be fixed with just a bit of time and a few materials you have in the house.
First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Then, open the remote with care and inspect the circuit board. Look for car key repairs near me of corrosion or other signs that the buttons are worn or damaged, such as missing paint that is conductive. Use a Q-tip, dipped in alcohol to gently clean any membrane contact that has worn-out or where conductive painting is missing. Do not rub repair keys near me as this can damage the conductive paint and prevent the button from firing when you press it.
Examine the battery connector's terminals for loose solder connections. If this is the case, connecting them back could bring back function to the button. The same method can be used to restore function to any loose connections inside the fob.
If any of the rubber buttons on the front of the keyfob aren't functioning or require to be pressed very 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 over the disks, which will bring the button back to life.
If none of these solutions work or you not be able to get the button respond when pressed hard, it could be that the circuitry is failing. This can be fixed by a quick clean and re-soldering, but it is recommended to have an additional fob on hand in the event that this method fails for you.
Circuitry
The circuit board of the remote control could be dirty regardless of whether the buttons on the key fob function or not. A thorough examination will usually resolve this issue. The most frequent causes of dirty circuit boards is water and damaged cases. A damaged case can allow water and other debris into the circuit board, causing it to short out. Water can also destroy pins and small connectors on the board called via's.
If you're handy enough to remove your key fob and don't mind some mess, we can remove the solder from the buttons and solder new ones in their place. It's also worth checking the connections between the 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 the terminals and buttons back into place is typically all it takes to restore the key fob that is not working to functioning condition.
Non-Remote transponder chips
The non-remote chips sealed in a sealed case are more durable than remote fobs, however they are susceptible to cracking if a hole is drilled in them or if a car door handle or lawnmowers plows over them. Most of the time, non-remote transponder chips fail, and this can be attributed to an exploded fuse.
If you're handy enough to open up a key fob that is sealed and are able to bear the mess, you can take off the circuit board and examine the fuse using a multimeter to ensure that it is functioning as intended. function. If you're not confident doing this, go to your local hardware store or Oreilly's, and they'll usually have a RFID frequency tester that can tell you whether the key fob sending signals.
Programming
Key fobs aren't impervious to destruction and are susceptible to being damaged through a variety of causes. They can lose their pairing to the car's receiver due to shock or low battery, requiring the reprogramming. A professional auto locksmith or dealer can reprogram your key fob and get it functioning again. If resetting or replacing your keyfob does not work it may be necessary to replace it.