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How to Fix a Key Fob That isn't Working

If your key fob won't work and you're not sure why, you can fix it with just a few steps. First, make sure that it's not the backup Remote Control Car Key Repairs.

If the backup can lock and unlock your electronic car key repair near me doors, then there is likely an issue with the main remote. The most common causes for key malfunctions for car remotes are battery or circuitry issues.

Battery

The battery inside the key fob could wear out over time. It is quite simple to change out a battery, although it is important to ensure that you choose the correct type that you can refer to your owner's manual or contact the manufacturer's dealer to determine the type of battery you need. It is also important to check the battery compartment, since dead batteries can leak toxic chemicals that could damage the remote. If replacing the battery does not solve the issue there may be additional issues that require attention from a professional. If buttons are damaged or stuck for instance, it may be necessary disassemble the remote and rework each component. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

Through repeated use, mobile key repair fobs can get dirty and worn. It is not unusual for buttons to stop working, or to require a hefty press to get them working. This can be very frustrating, especially when you are away from your home and you need to turn on your car. Even worn-out or malfunctioning buttons are often fixable with a little effort and tools you already have at home.

First, make sure that the batteries have been correctly placed and that the indentation on the back of the button is filled. Take the remote apart and inspect the circuit board. Check for signs of corrosion or other indications that the buttons are worn or damaged, such as missing the conductive paint. Use a Q-tip, dipped in alcohol to gently clean any membrane contact that has worn out or where conductive paint is missing. Do not rub too vigorously in order to damage the conductive paint and prevent the button from firing when it is pressed.

Also, be sure to check the battery connector's terminals for a loose solder connection. If this is the case, simply soldering them back in place could restore function to the button. You can follow the same procedure to restore functionality to any other loose connection within the fob.

If any of the rubber buttons located at the front of the keyfob are not working or require being pressing very hard the graphite disks at the back of the button might have worn out and need to replaced. 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 does not respond to a firm press, then it may be the case that the circuit board has gone bad. It is possible to fix the issue by cleaning and re-soldering your fob but you should also have a spare in case it does not work.

Circuitry

Whether or not the keys fob buttons are functioning, the circuit board inside the remote could be dirty. This issue can be fixed through a thorough examination. Broken cases and water are the most common causes of dirty boards. A damaged case allows water and other debris to get in and short out the electronics. Water can also destroy pins and connectors on the board, referred to as via's.

If you're handy enough to remove your key fob, and you're not afraid of some mess, we can de-solder the buttons and then solder new ones in their place. It's also worth checking the connections between the battery terminals. If they are loose, the buttons may not function properly or become stuck in their down position. Soldering terminals and buttons back to their proper positions is usually enough to restore a non-working fob to a working condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than the remote fobs that contain them but they can be damaged by a hole that is made in them or pushed over by a lawnmowers or car door handle. The majority of non-remote transponder chip failures can be attributed to blowing fuses.

If you're able to open up the sealed key fob 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 comfortable doing this, head to your local hardware store or the Oreilly's and they will usually have an RFID frequency tester that can let you know whether the key fob transmitting a signal.

Programming

Key fobs take a lot of abuse and aren't impervious to damage. They can lose their pairing with the receiver in your vehicle key repairs due to shocks or low battery, requiring the reprogramming. A professional auto locksmith or a main dealer can reprogram your key fob and get it back up and running. If resetting or repairing your key fob fails it may be necessary to replace it.