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How to Fix a Key Fob That isn't Working

If your key repairs fob isn't functioning There are a few simple steps that can be taken to fix it. First, ensure that it's not your backup remote.

If the backup is able to lock and unlock your car key and repair doors, then there's a likely issue with the primary remote. The majority of car remote key malfunctions are caused by circuitry or battery issues.

Battery

It is not uncommon for the battery in a key fob for cars to get worn out. It is relatively easy to change out batteries, but it is crucial to ensure you use the right 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 recommended to examine the battery compartment with care because dead batteries can leak caustic chemicals that can cause damage to the remote. If replacing the battery does not fix the problem there may be additional issues requiring professional attention. For instance, if buttons appear stuck or damaged, it may be necessary to disassemble the remote and damaged rebuild its components. You could also try reprogramming your car to recognize the new key fob.

Buttons

Due to repeated use, ignition key repair near me fobs could become worn and dirty. This is not unusual however, it can cause buttons to cease working or require a difficult press to get them to work. This can be frustrating, especially when you are away from your home and you need to switch on your car. Fortunately, even worn out or damaged buttons can be fixed with just a bit of time and some of the materials you might already have in the home.

First, verify that the batteries are properly installed and that the indentation on the back of the button is filled. Then, Auto Key Repair carefully open the remote and examine the circuit board. Examine for signs of rust or other indications that buttons are worn out or damaged, like missing paint that is conductive. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contacts that are damaged or have conductive paint missing. Be careful not to rub too hard, as this can erode the conductive painting and prevent the button from firing when it is it is pressed.

Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position will restore the button's functionality If this is the situation. You can apply the same procedure to restore functionality to any other loose connection in the fob.

In the end, if any of the buttons made of rubber on the front of the key fob have stopped functioning or require a difficult press to function, it is likely that the graphite disks at the back of the button are wearing out and need to be replaced. You can do this by rubbing a pencil over the disks. This should bring the button to life.

If none of this is helpful or if the button does not respond to a firm press It could be because the circuit board is damaged. It is possible to fix this issue by cleaning and re-soldering the fob however, you should have an extra in case it doesn't work.

Circuitry

The circuit board of your remote control may be dirty, regardless of whether the buttons on the key fob work or not. The issue can be solved through a thorough examination. The most common causes for dirty circuit boards are water and damaged cases. A damaged case allows water and other debris to enter and short out the electronic components. Water can also destroy pins and small connectors on the board, which are known as via's.

If you're handy enough to open up your key fob and don't mind a little mess, we can remove the solder from the buttons and solder new ones in their place. Also, it's worth checking the connections between the battery terminals. If they are loose, the buttons might not work or even become stuck in their down position. Soldering the terminals back into place is usually enough to restore a non-working fob to a working condition.

Non-Remote transponder chips

Sealed non-remote transponder chip are more durable than the remote fobs they are contained in, however they are still susceptible to being damaged by a hole that is drilled into them or run over by a lawnmowers or door handle for a car. The failure of the fuse is usually the cause of non-remote chip failures.

If you're handy enough to open a key fob that is sealed and can tolerate the mess, you can easily remove the circuit board and check the fuse using a multimeter for proper diode function. If you're not confident doing this, go to your local hardware store or Oreilly's, and they'll usually have an RF frequency tester that will let you know whether the key fob is sending signals.

Programming

Key fobs aren't impervious to destruction and can be damaged through a variety of causes. They can lose their pairing to the car's receiver due to shock or low battery, which requires them to be reprogrammed. A professional auto locksmith or a main dealer can reprogram your key fob to get it back up and running. In the rarer case that resetting or repairing your key fob doesn't work, it could be time to replace it completely.