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

If your backup remote is unable to lock and unlock the doors of your car, it is likely that the main remote isn't working. The majority of car remote key malfunctions are caused by circuitry or battery problems.

Battery

The battery in the key fob could get worn out over the course of time. It is easy to replace the battery. However, it is important that you use the correct type. You can consult the owner's manual or contact the manufacturer to find out the right kind. It is also important to check the battery compartment, since batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the batteries doesn't solve the issue it could be that there are other issues that require attention from a professional. If the buttons are stuck or broken, for example it could be necessary to take the remote apart and rework each component. You could also try reprogramming your vehicle to recognize the new key fob.

Buttons

Through frequent use, key fobs may get dirty and worn. It is not uncommon for buttons to stop working, or to require a hefty press to make them work. This can be very frustrating especially if you're out of town and need to start your car key repairs near me. Even broken or damaged buttons can be fixed with a little time and tools you already have at home.

First, check that the batteries are correctly inserted and that the indentation on the back of the button is filled. Then, carefully open the remote and look at the circuit board. Examine for indications of rust or other indications that the buttons have been damaged or worn. For example the paint that conducts electricity could be missing. Utilizing a Q-tip dipped in rubbing alcohol, gently clean any membrane contacts that have damaged or have conductive paint missing. Don't rub too hard, as this could erode the conductive paint and prevent the button from firing when pressed.

Check the battery connector terminals for loose solder connections. If this is the case, simply reconnecting them can bring back function to the button. The same method can be used to restore functionality to any other loose connections inside the fob.

If any of the rubber buttons at the front of the keyfob are not functioning or require to be pressing very hard the graphite disks on the back of the button may have worn out and require replacement. This is usually done by rubbing a pencil across the disks, which will bring the button back to its original state.

If none of these solutions work, or if you still not be able to get the button respond when pressed hard, it is possible that the circuitry has failed. It is possible to fix this with a quick clean and replacing the solder, but it is ideal to have a spare fob in case this method does not work for you.

Circuitry

The circuit board of your remote key fob repair near me control could be dirty, regardless of whether the buttons on the key fob repairs near me fob function or not. This issue can be fixed by a thorough inspection. The most frequent causes of dirty circuit boards are water and broken cases. A damaged case can allow water and other debris to pass through and short out the electronics. Water can also damage pins and vias, which are tiny connectors found on the board.

If you're handy enough to open your key fob, and you're not afraid of some mess, we can take off the buttons and solder new ones in their place. It's also worth checking the connections between battery terminals. They can get very filthy and if they're not tight enough, the buttons may not work or may even remain in their down position. Soldering the terminals and buttons back into place is typically all that's needed to return the key fob that is not working to functioning condition.

Non-Remote transponder chips

The sealed non-Remote key repair chips are more durable than their remote fobs, but they are susceptible to cracking if a hole is drilled in them, or when a door handle for a repair car remote control key or lawnmowers is pushed over them. The failure of the fuse is usually the cause of non-remote chip failures.

If you are not comfortable opening the key fob, you may remove the circuitboard and utilize a multimeter to determine if the diode is functioning properly. If you're not comfortable with this, you can go to your local Oreilly or hardware store and use their RF frequency tester. This will tell you whether the key fob is sending an RF signal.

Programming

Key fobs aren't indestructible and are susceptible to being damaged by a variety of factors. They may lose their connection to the receiver in your car key repairs because of shock or a low battery, requiring the reprogramming. A professional auto locksmith, or a dealer in the main, can reprogram your keyfob and get it working again. If resetting or replacing your key fob fails it may be necessary to replace it.