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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 a few simple steps. The first step is to be sure that it's not the backup remote.

If your backup remote is unable to unlock and lock the doors of your car, then it is most likely that the primary remote isn't working. Most problems with car remote keys repair keys repair near me (please click the next post) result from battery or circuitry problems.

Battery

It is not unusual to find a battery on the key fob for cars to degrade. It is fairly easy to change out batteries, but it is important to ensure you use the right type; you can look in the owner's manual or talk to the dealer for the manufacturer to find out what kind of battery you need. It is recommended to examine the battery compartment carefully since dead batteries may leak caustic chemicals that can damage the remote. If changing the battery doesn't solve the issue, there may be other issues that require attention from a professional. For instance, if buttons appear stuck or damaged, it may be necessary to disassemble the remote and rebuild its components. It is also possible to reprogramme the vehicle to recognize the new remote.

Buttons

Key fobs can become filthy and worn out due to repeated use. It is not common for buttons to cease functioning, or require a hefty press to make them work. This can be a hassle, especially when you are away from home and have to turn on your car. Even worn-out or malfunctioning buttons are often fixable with a little time and the tools you already have at home.

First, verify that the batteries are properly placed and that the indentation on the back of the button has been filled. Then, carefully open the remote and inspect the circuit board. Examine for signs of rust or other signs that the buttons are worn out or damaged, like missing conductive paint. Then, using the Q-tip, dipped in rubbing alcohol, gently clean any membrane contacts that have worn or have conductive paint missing. Be careful not to rub too hard, since this could cause damage to the conductive paint and stop the button from firing when it is it is pressed.

Also, make sure to inspect the battery connector terminals for an unattached solder connection. If this is the case, simply connecting them back may bring back function to the button. You can use the same method to restore functionality to any other loose connection inside the fob.

Finally, if any of the buttons made of rubber on the front of the key fob have stopped working or require a very hard press to work, it is likely that the graphite disks at the back of the button are deteriorating and need to be replaced. This is usually done by rubbing a pencil on the disks. This should bring the button back to working.

If none of these solutions work, or if you still are unable to get the button to respond when you press it hard, it could be that the circuitry has failed. This can be fixed by a quick clean and re-soldering, but it is ideal to have a spare fob on hand in the event that this method fails for you.

Circuitry

If the key fob repairs near me fob buttons function the circuit board in your remote may be dirty. A thorough inspection is often enough to resolve this problem. The most frequent causes of dirty circuit boards is water and damaged cases. A damaged case allows water and other debris to pass through and short circuit the electronics. Water can also destroy pins and connectors that are small on the board, which are known as via's.

If you're able to open your key fob and aren't afraid of making an mess, you can take the buttons out of their sockets and solder in new ones. It's also worth looking at the battery terminal connections. They can become extremely dirty and if they're loose 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 auto key repair fob that is not working to functioning condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chip are more durable than remote fobs that have them but they can be damaged by a hole that is made in them or pushed over by a lawnmowers blade or car door handle. The failure of the fuse is usually to blame for non-remote chip failures.

If you're able to remove 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 for proper diode function. If you're not comfortable with this, you can go to your local Oreilly or hardware store and utilize their RF frequency tester. This will tell you whether the key fob transmits a signal.

Programming

Key fobs aren't impervious to destruction and are susceptible to damage by a lot of things. They can break their connection with the receiver in your vehicle due to shocks or low-battery, which requires the reprogramming. A professional auto key repair locksmith, or a dealer in the main can reprogram your keyfob and get it working again. If resetting or repairing your keyfob does not work, you may need to replace it.