How to Fix a Key Fob That isn't Working
If your key fob does not work then you can fix it by following just a few steps. First, check to make sure it's not your backup remote.
If your backup remote cannot lock and unlock the doors of your vehicle, it is most likely that the primary remote isn't functioning. Most problems with car remote keys result from circuitry or battery issues.
Battery
It is not unusual for the battery in the car key fob to get worn out. It is fairly easy to change out a battery, although it is essential to make sure that you select the correct one; you can look in the owner's manual or talk to the dealer for the manufacturer to determine the type of battery you need. It is also a good idea to examine the battery compartment carefully, as dead batteries sometimes release caustic chemicals that could harm the remote. If changing the battery doesn't fix the issue, there may be other issues requiring professional attention. For example, if buttons appear stuck or damaged, it may be necessary to take the remote apart and rework its components. It is also possible to reprogramme the vehicle to recognize the new remote.
Buttons
Through repeated use, key fobs may wear out and become dirty. It is not uncommon to have buttons stop working, or to require a hard press to make them work. This can be very frustrating especially when you're away from your home and have to start your car. Fortunately, even worn out or damaged buttons can be fixed with a little time and a few items you might already have in the home.
First, make remote key repair near me that the batteries have been correctly installed and that the indentation on the back of the button is filled. Then, open the remote with care and look over the circuit board. Look for signs of corrosion or other signs that the buttons are worn or damaged, like missing the conductive paint. Then, using the Q-tip, dipped in alcohol, gently clean any membrane contacts that have worn or where conductive paint is missing. Do not rub too vigorously, as this could erode the conductive paint, and block the button from firing when pressed.
Check the battery connector terminals carefully for any loose solder connections. If this is the case, soldering them back in place can bring back function to the button. The same procedure can be used to restore functionality to any other loose connections in the fob.
If, for instance, any of the rubber buttons on the front of the key fob stop functioning or require a long press to function, it is likely that the graphite disks at the back of the button are wearing out and require replacement. This can usually be done by rubbing a pencil on the disks, which should bring the button back to life.
If none of this is helpful or if the button still does not respond to a firm press It could be that the circuit board is damaged. It is possible to fix this by cleaning and re-soldering the fob however, you should have a spare in case it does not work.
Circuitry
Whether or not the key fob buttons are working the circuit board that is inside your remote might be dirty. This problem can be resolved by a thorough inspection. Water and broken cases are the most frequent causes of boards that are dirty. A damaged case allows water and other debris to enter and short out the electronics. repair car keys near me can also destroy pins and connectors on the board, which are known as via's.
If you're handy enough to open up your key fob and aren't afraid of a little mess, we can de-solder the buttons and put new ones in their place. Also, it's worth checking the connections between the battery terminals. They can become extremely filthy and if they're not tight enough, the buttons may not work or may even remain in their down position. Soldering the terminals back to their proper positions is usually enough to restore a non-working fob to working.
Non-Remote Transponder Chips
The non-remote chips sealed in a sealed case are more durable than remote fobs, however they are susceptible to breaking when a hole is made in them, or when a door handle for a car or lawnmower runs over them. Most of the time non-remote transponder chip malfunctions can be blamed on an exploded fuse.
If you're not confident opening the key fob, you can remove the circuitboard and use a multimeter to determine if the diode is operating properly. If you're unsure about doing this, go to your local hardware store or Oreilly's, and they will usually have a RF frequency tester that will tell you whether the key fob is sending signals.
Programming
Key fobs endure a lot of abuse and aren't completely indestructible. They can break their connection with the receiver inside your vehicle because of shocks or a low battery, which calls for reprogramming. A professional auto locksmith, or main dealer can reprogram the key fob and get it back working again. If resetting or repairing the keyfob is not working, you may need to replace it.