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How to Fix a Key Fob That isn't Working

If your key fob isn't working, a few easy steps can fix it. First, check to make sure it's not the backup remote.

If the backup can lock and unlock your car doors then there is likely an issue with the main remote. Most car remote key failures result from circuitry or battery issues.

Battery

It is not unusual for the battery inside a car key fob to get worn out. It is fairly easy to change out the battery, however it is essential to ensure you use the right type and you can consult your owner's manual or contact the manufacturer's dealer to find out the kind of battery you need. It is also essential to examine the battery compartment, since batteries that are not working properly can release caustic chemicals that can harm the remote. If replacing the batteries doesn't solve the issue it could be that there are other issues that require professional attention. If buttons are damaged or stuck, for example, it may be necessary disassemble the remote and rework each component. You can also try reprogramming the vehicle to recognize the new device.

Buttons

Due to repeated use, key fobs can get dirty and worn. It is not common to have buttons stop functioning, or require a hefty press to get them working. This can be frustrating particularly when you're away from your home and have to start your car. Even worn-out or malfunctioning buttons can be fixed with a bit of time and materials you already have at home.

First, make sure the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Examine for indications of rust or other indications that the buttons are damaged or worn. For instance, conductive paint may be missing. Utilizing a Q-tip dipped in alcohol to gently clean any membrane contacts that have damaged or where conductive paint is missing. Do not rub too vigorously, as this could erode the conductive paint and stop the button from firing when pressed.

Also, make sure to inspect the battery connector's terminals to ensure an unattached solder connection. If this is the case, reconnecting them could restore functionality to the button. The same method can be used to restore function to any other loose connections within the fob.

If any of the rubber buttons on the front of the keyfob are not working or need to be pressed very hard, the graphite disks at the back of the button could have worn out and will need to replaced. You can do this by rubbing a pencil over the disks. This will bring the button back to life.

If none of this is useful, or if the button still doesn't respond to a hard push, then it may be because the circuit board has become damaged. It is possible to fix this by cleaning and re-soldering the button however, you should have another spare in case it does not work.

Circuitry

Whether or not the keys repair fob buttons are functioning the circuit board in your remote key repair (more about Google) might be dirty. A thorough inspection is often enough to resolve this problem. Water and broken cases are the most frequent causes of boards that are dirty. A damaged case can allow water and other debris into the circuit board, causing it to short out. Water can also damage pins and connectors on the board called via's.

If you're able to open your key fob, and aren't afraid of making a mess, we can take the buttons out of their sockets and put in new ones. Also, it's worth checking the connections between battery terminals. They can become very dirty and if they're loose the buttons might not work or even stick in their down position. Soldering the terminals and buttons to their original positions is often enough to bring a non-working fob to working.

Non-Remote transponder chips

The sealed non-remote chips are more durable than their remote fobs. However, they can be cracked if a hole is drilled in them or in the event that a door handle of a car or lawnmowers plows over them. Failures of the fuse are typically to blame for non-remote chip failures.

If you're not comfortable opening the key fob, remove the circuitboard and use a multimeter to determine if the diode is operating correctly. If you're unsure about doing this, go to your local hardware store or the Oreilly's and they usually have an radio frequency tester that can determine whether the key fob key repair near me is transmitting a signal.

Programming

Key fobs endure many abuses and aren't completely indestructible. They can lose their pairing with the receiver in your vehicle because of shocks or a low battery, requiring reprogramming. A professional auto locksmith, or the main dealer can reprogram your keyfob to get it functioning again. In the event that resetting and fixing your mobile key repair near me fob doesn't work, it could be time to replace it completely.