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, ensure that it's not the backup remote.

If your backup remote is unable to unlock and lock the doors of your car, it is most likely that the primary remote key fob repair near me isn't functioning. Most problems with Mobile car key repair remote keys result from circuitry or battery issues.

Battery

It is not uncommon to find a battery on a car key button repair key fob to wear out. It is relatively easy to replace batteries, but it is essential to ensure that you use the right type and you can consult the owner's manual or talk to the manufacturer's dealer to find out what kind of battery you need. It is also a good idea to inspect the battery compartment with care, as dead batteries sometimes release caustic chemicals that could damage the remote. If changing the batteries does not solve the problem, it may be that there are other issues that require attention by a professional. For instance, if buttons appear stuck or damaged It may be necessary to disassemble the remote and rework its parts. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

From frequent use, key fobs can become worn and dirty. It is not common to have buttons stop working, or to require a hefty press to get them working. This can be a hassle particularly when you're away from your home and you need to start your car. Fortunately, even worn out or damaged buttons can be fixed with a bit of time and a few items you might already have in the house.

First, ensure that the batteries are charged correctly and that the indentation on the back of the button is filled. Take the remote apart and look over the circuit board. Check for evidence of rust, or other indications that the buttons are worn or damaged. For instance the paint that conducts electricity could be missing. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has become worn-out or has conductive paint missing. Do not rub too vigorously in order to damage the conductive paint, and block the button from firing when pressed.

Also, carefully check the battery connector's terminals for any loose solder connections. Soldering them back to their original position will restore the button's functionality If this is the situation. The same method can be used to restore function to any other loose connections inside the fob.

If any of the rubber buttons at the front of the keyfob isn't working or need to be pressing very hard, the graphite disks at the back of the button might have worn out and will require replacement. It is usually done by rubbing a pencil over the disks. This should bring the button to life.

If all of this doesn't help, or if the button still does not respond to a hard push, then it may be the case that the circuit board itself is damaged. It is possible to fix this by a quick clean and Mobile Car Key Repair re-soldering, but it is recommended to have an additional fob available in the event this method doesn't work for you.

Circuitry

The circuit board of your remote control may be dirty, regardless of whether the buttons on the key fob are working or not. A thorough inspection will usually resolve this issue. The most common causes for dirty circuit boards is water and damaged cases. A damaged case allows water and other debris to get in and short circuit the electronic components. Water can also damage pins and connectors on the board, which are known as via's.

If you're skilled enough to open your key fob, and don't mind making a mess, we can remove the buttons from their sockets and then solder new ones. Also, you should check the connections between the battery terminals. They can get very filthy and if they're not tight enough, the buttons might not work or may even remain in their down position. Soldering the terminals and buttons to their proper positions is usually enough to bring a non-working fob to a working condition.

Non-Remote transponder chips

Sealed non-remote transponder chips are more durable than the remote fobs that contain them but they can still be damaged by a hole that is made in them or pushed over by a lawnmowers blade or door handle for a car. Failures of the fuse are typically to blame for non-remote chips failures.

If you're handy enough to open up the sealed key fob and are able to bear the mess, you can remove the circuit board and examine the fuse with a multimeter for proper diode function. If you're not confident doing this, go to your local hardware store or the Oreilly's and they'll usually have an RFID frequency tester that can let you know whether the key fob transmitting a signal.

Programming

Key fobs are subject to many abuses and aren't completely indestructible. They may lose their connection to the receiver in your car because of shock or a low battery, requiring them to be reprogrammed. A professional auto locksmith or a main dealer will be able to reprogram your key fob to get it functioning again. If, in the unlikely event that resetting or repairing your key fob isn't working, it could be time to replace it completely.