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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, check to make sure it's not your backup remote.

If your backup remote cannot unlock and lock key repair near me the doors of your emergency car key repair, it is likely that the primary remote isn't functioning. Most problems with car remote keys are caused by circuitry or battery problems.

Battery

The battery in the key fob may be worn out over time. It is quite simple to change out batteries, but it is crucial to ensure you select the correct one that you can refer to the owner's manual or talk to the dealer of the manufacturer to find out the kind of battery you require. It's recommended to inspect the battery compartment with care, as dead batteries sometimes leak caustic chemicals that can cause damage to the remote. If replacing the batteries doesn't solve the problem, it may be that there are other issues that require professional attention. For example, if buttons seem to be stuck or damaged, it may be necessary to disassemble the remote and rework its parts. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

Due to repeated use, key fobs can get dirty and worn. This is not atypical however it can cause buttons to cease working or require a long press to work. This can be frustrating particularly when you're away from your home and have to turn on your car remote key repair near me. Even worn-out or malfunctioning buttons can be fixed with a little time and materials you already have at home.

First, check that the batteries are correctly installed and that the indentation at the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Examine for signs of rust or other indications that the buttons are worn out or damaged, such as missing paint that is conductive. Use a Q-tip dipped in alcohol to gently clean any membrane contacts that have become worn or have conductive paint missing. Be careful not to rub too hard, as this can erode the conductive paint and stop the button from firing when it is the button is pressed.

Also, make sure to inspect the battery connector terminals for an unattached solder connection. If this is the case, soldering them back in place may restore function to the button. The same procedure can be used to restore function to any loose connections inside the fob.

If any of the rubber buttons located at the front of the keyfob are not working or require being press very hard the graphite disks on the back of the button might have worn out and need to replaced. You can do this by rubbing a pen across the disks. This will bring the button back to life.

If none of these solutions work, or if you still are unable to get the button to respond when pressed hard, it is possible that the circuitry is failing. It is possible to fix the issue by cleaning and re-soldering the button however, you should have a spare in case it doesn't work.

Circuitry

The circuit board in your remote control could be dirty regardless of whether the buttons on the repair key fob are working or not. A thorough examination is often enough to resolve this problem. Water and broken cases are the most frequent causes of boards that are dirty. A damaged case allows water and other debris to pass through and short circuit the electronics. Water can also damage pins and vias, which are the tiny connectors found on the board.

If you're handy enough to remove your key fob and don't mind some mess, we can take off the buttons and solder new ones in their place. It's also worth checking the battery terminal connections. They can become extremely dirty and if they're loose, 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 restore a non-working fob back to working.

Non-Remote transponder chips

The sealed non-remote key fob repair near me chips are more durable than their remote fobs. However, they are susceptible to breaking in the event of a hole being drilled in them or in the event that a door handle of a car or lawnmower runs over them. The majority of non-remote transponder chips fail, and this can be attributed to an exploded fuse.

If you're able to open a key fob that is sealed and are willing to put up with the mess, you can easily remove the circuit board and test the fuse using a multimeter for proper diode function. If you're unsure about doing this, go to your local hardware store or the Oreilly's and they usually have a RF frequency tester that will tell you if the key fob is sending signals.

Programming

Key fobs aren't impervious to destruction and are susceptible to damage by a lot of things. They may lose their connection to the car's receiver because of shock or a low battery, which calls for them to be reprogrammed. A professional auto locksmith, or the main dealer, can reprogram your keyfob and get it up and running again. If, in the unlikely event that resetting or repairing your key fob doesn't work it may be time to replace it entirely.