A Positive Rant Concerning Remote Key Repair
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How to Fix a Key Fob That isn't Working
If your key fob doesn't work then you can fix it with a few simple steps. First, make sure that it's not your backup remote.
If your backup remote cannot lock and unlock the doors of your vehicle, it is likely that the primary remote isn't functioning. The most frequent causes of key malfunctions for car remotes are circuitry or battery issues.
Battery
The battery in the key fob could be worn out over time. It is simple to replace the battery. However, it is important that you use the correct type. You can refer to the owner's manual or contact the manufacturer to determine the right kind. It is also essential to check the battery compartment, since batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the batteries does not solve the problem it could be that there are other issues that require attention from a professional. If the buttons are stuck or broken for instance it might be necessary to take the remote apart and rework each component. You could also try reprogramming your vehicle to recognize the new key fob.
Buttons
Due to repeated use, key fobs may become worn and dirty. It is not unusual for buttons to cease working, or to require a long push to make them work. This can be frustrating especially when you're away from home and you need to turn on your car. Even broken or damaged buttons can be fixed with a little effort and the tools you already have at home.
First, check that the batteries have been correctly placed and that the indentation at the back of the button has been filled. Then, carefully open the remote and examine the circuit board. Examine for signs of rust or other signs the buttons are damaged or worn. For instance there could be conductive paint missing. Utilizing the Q-tip, dipped in alcohol, gently clean any membrane contacts that are worn or where conductive paint is missing. Be careful not to rub too hard, as this can erode the conductive painting and prevent the button firing when it is 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 apply the same process to restore functionality to any other loose connection within the fob.
If any of the more info rubber buttons located at the front of the keyfob are not working or require being pressed very hard the graphite disks on the back of the button could have worn out and need check here to replaced. This can usually be done by rubbing a pencil on the disks, which should bring the button back to its original state.
If none of these solutions work or you cannot get the button to respond when you press it hard, it could be that the circuitry has failed. It is possible to fix this by cleaning and re-soldering your fob, but you should have a spare in case it doesn't work.
Circuitry
If the keys fob buttons are functioning the circuit board in your remote might be dirty. This problem can be resolved by click here a thorough inspection. Water and broken cases are the most frequent causes of boards that are dirty. A damaged case can let water and other debris to get into the circuit board, which can cause it to short. Water can also get through pins and vias, which are the tiny connectors found on the board.
If you're able to remove your key fob and aren't afraid of making a mess, we can de-solder the buttons and put new ones in their place. Also, you should check the connections between the battery terminals. If they're loose, the buttons might not work or even become stuck in their down position. Soldering the terminals and buttons into place is usually enough to return a malfunctioning fob back to working.
Non-Remote Transponder Chips
Sealed non-remote transponder chips are more durable than the remote fobs that contain them but they can still be cracked by a hole made in them or pushed over by a lawnmower or door handle for a car. Fuse failures are usually the cause of non-remote chip failures.
If you're here able to open a key fob that is sealed and are able to bear the mess, you can remove the circuit board and check the fuse with a multimeter for proper diode function. If you're unsure about doing this, visit your local hardware store or the Oreilly's and they'll usually have an radio frequency tester that can let you know if the key fob is transmitting a signal.
Programming
Key fobs take lots of abuse and aren't indestructible. They can break their connection with the receiver inside your vehicle due to shocks or low battery, which calls for reprogramming. A professional auto locksmith or a main dealer can read more reprogram your key fob to get it back up and running. In the event that resetting and fixing your key fob fails it could be the time to replace it all over again.