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How to Fix a Key Fob That isn't Working

If your key fob does not work and you're not sure why, you can fix it by following a few simple steps. First, ensure that it's not your backup remote.

If the backup remote is able to lock and unlock your car doors, it is most likely an issue with the main remote. The most common causes of key problems with your car remote are issues with the circuitry or battery.

Battery

It is not uncommon to find a battery on the car key repair cost key fob to degrade. It is relatively easy to change out batteries, but it is crucial to ensure you select the correct one that you can refer to your owner's manual, or contact the dealer of the manufacturer to determine the type of battery you need. It is also essential to inspect the battery compartment, as dead batteries can leak caustic chemicals which can damage the remote. If replacing the batteries doesn't solve the problem, it may be that there are other issues that require attention from a professional. For instance, if the buttons appear stuck or broken it could be necessary to disassemble the remote and rework its components. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

Key fobs may become filthy and worn out due to frequent use. This is not uncommon however it can cause buttons to cease working or require a difficult press to get them to function. This can be very frustrating, especially if you are away from home and need to start your car key repair shop near me. Fortunately, even worn out or broken buttons can usually be fixed with a little time and some of the materials you have in the home.

First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote control car key repairs and examine the circuit board. Check for indications of rust or other indications that the buttons have been worn or damaged. For example the paint that conducts electricity could be missing. Use a Q-tip, dipped in rubbing alcohol to gently clean any membrane contact that has worn out or has conductive paint missing. Avoid rubbing too hard because this could damage the conductive paint and block the button firing when the button is pressed.

Also, make sure to inspect the battery connector's terminals to ensure a loose solder connection. Soldering them back in place will restore the button's functionality If this is the case. You can follow the same procedure to restore functionality to any other loose connection within the fob.

In the end, if any of the buttons made of rubber on the front of the ignition key repair near me fob have stopped working or require a very long press to function it is likely that the graphite disks on the back of the button are deteriorating and need to be replaced. This can usually be done by rubbing a pencil over the disks, which will bring the button back to life.

If none of this is useful, or if the button still does not respond to a hard push, then it may be that the circuit board has become damaged. It is possible to fix this by cleaning and re-soldering the fob, but you should have an extra in case it does not work.

Circuitry

If the key fob buttons function the circuit board in the remote could be dirty. The issue can be solved by a thorough inspection. The most common causes of dirty circuit boards is water and broken cases. A broken case allows water and other debris to get in and short circuit the electronics. Water can also eat away at pins and small connectors on the board, referred to as via's.

If you're able to open your key fob and don't mind some mess, we can de-solder the buttons and solder new ones in their place. It's also worth looking at the battery terminal connections. If they're loose, the buttons may not function properly or become stuck in their down position. Soldering the terminals and buttons back in place is usually all it takes to restore the key fob that is not working to functioning condition.

Non-Remote transponder chips

Sealed non-remote transponder chips are much more durable than the remote fobs that have them but they can still be broken by a hole being drilled into them or Car key Fob repairs run over by a lawnmower or car door handle. Most of the time non-remote transponder chip malfunctions can be blamed on a blown fuse.

If you're handy enough to remove a sealed non-remote key fob and can tolerate the mess, you can take off the circuit board and check the fuse using a multimeter for proper diode function. If you're not comfortable doing this, visit your local hardware store or Oreilly's, and they usually have an RF frequency tester that will tell you whether the key fob transmitting a signal.

Programming

Key fobs are not indestructible and are susceptible to being damaged by a variety of factors. They may lose their connection to the car's receiver because of shock or a low battery, requiring them to be reprogrammed. A professional auto locksmith, or a dealer in the main can reprogram your keyfob and get it working again. In the rarer case that resetting or repairing your key fob isn't working it could be the time to replace it completely.