How to Fix a Key Fob That isn't Working

If your key fob does not work then you can fix it with a few simple steps. First, check to make sure it's not your backup remote.

If your backup remote can unlock and lock the doors of your car key repair cost, it is most likely that the primary remote isn't functioning. The most frequent causes of key malfunctions for car remotes are circuitry or battery issues.

Battery

The battery inside a key fob can be worn out over time. It is simple to replace a battery. However it is crucial that you use the correct kind. You can check your owner's manual or call the manufacturer to find out the correct type. It is also crucial to check the battery compartment, as batteries that are not working properly can release toxic chemicals that could damage the remote. If replacing the battery does not fix the issue there could be other issues requiring professional attention. If the buttons are broken or stuck, for example it could be necessary to disassemble the remote and rework each component. You can also try reprogramming the vehicle to recognize the new fob.

Buttons

Key fobs may become dirty and worn-out from repeated use. It is not common for buttons to stop working, or to require a hard press to get them working. This can be a hassle particularly when you're away from home and you need to start your Car Key Repair Near Me. Even broken or damaged buttons can be fixed with a bit of time and the tools you already have at home.

First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open the remote and examine the circuit board. Look for evidence of rust, or other signs the buttons are damaged or worn out. For instance there could be conductive paint missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has become damaged or where conductive painting is missing. Avoid rubbing too hard, because this could damage the conductive paint and block the button from firing when it is pressed.

Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place can restore the button's functionality if this is the situation. The same method can be used to restore functionality to any other loose connections within the fob.

If, for instance, any of the buttons made of rubber on the front of the key fob stop functioning or require a difficult press to function it is likely the graphite disks that are on the back of the button are wearing down and need to be replaced. It is usually done 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 you press it hard, it is possible that the circuitry has failed. This can be fixed by a quick clean, and re-soldering, but it is ideal to have a spare fob in case this method doesn't work for you.

Circuitry

The circuit board inside your remote control may be dirty regardless of whether the buttons on the key fob are working or not. This issue can be fixed by a thorough inspection. The most frequent causes of dirty circuit boards are water and damaged cases. A damaged case could allow water and other debris to enter the circuit board, which can cause it to short. Water can also eat away at pins and connectors on the board, referred to as via's.

If you're able to open your key fob, and you're not afraid of making a mess, we can de-solder the buttons and solder new ones in their place. It's also worth checking the battery terminal connections. If they are loose, the buttons could not function or get stuck in their down position. Soldering the terminals and buttons to their original positions is often enough to bring a non-working fob to a working condition.

Non-Remote transponder chips

The sealed non-remote chips are more durable than their remote fobs, but they are susceptible to breaking in the event of a hole being drilled in them or if a electronic car key repair near me door handle or lawnmowers is pushed over them. Failures of the fuse are typically to blame for non-remote chips failures.

If you are not comfortable opening the key fob, remove the circuitboard and utilize a multimeter to determine if the diode is functioning properly. 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 whether the key fob is transmitting a signal.

Programming

Key fobs endure lots of abuse and aren't completely indestructible. They may lose their connection with the receiver inside your vehicle due to shocks or low battery, Car key repair Near me requiring reprogramming. A professional auto locksmith or dealer can reprogram your key fob and get it back up and running. If resetting or fixing your key fob fails it may be necessary to replace it.