How to Fix a Key Fob That isn't Working

If your key fob isn't working A few easy steps can fix it. The first step is to make sure that it's not your backup remote.

If your backup Remote Key Repair can lock and unlock the doors of your vehicle, it is most likely that the primary remote isn't functioning. Most problems with car remote keys are caused by battery or circuitry problems.

Battery

The battery inside a automotive key repair fob can be worn out over time. It is simple to replace batteries. However it is essential that you use the correct type. You can refer to your owner's guide or contact the manufacturer to inquire about the correct type. It is recommended to examine the battery compartment carefully because dead batteries can leak caustic chemicals that can damage the remote. If changing the battery doesn't solve the issue, there may be other issues that require professional attention. If the buttons are damaged or stuck for instance it might be necessary to take the remote apart and rework each component. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

Key fobs may become dirty and worn out from frequent use. This is not atypical however it can cause buttons to cease working or require a very hard press for them to function. This can be very frustrating particularly if you're away from home and repair key fob you need to start your vehicle. Even worn-out or malfunctioning buttons can be fixed with a bit of time and the tools you already have at home.

First, verify that the batteries are correctly inserted and that the indentation at the back of the button is filled. Then, open the remote with care and examine the circuit board. Check for signs of corrosion or other indications that the buttons are worn out or damaged, such as missing conductive paint. Then, using a Q-tip that has been dipped in alcohol to gently clean any membrane contacts that have become worn or where conductive paint is missing. Avoid rubbing too hard as this can erode the conductive paint and block the button from firing when it is it is pressed.

Also, carefully check the battery connector's terminals to ensure any loose solder connections. Soldering them back to their original position will allow the button to function again if this is the case. The same method can be used to restore function to any loose connections in the fob.

If any of the rubber buttons at the front of the keyfob aren't working or need to be pressed extremely hard the graphite disks at the back of the button could have worn out and require replacement. This can be done by rubbing a pencil on the disks. This should bring the button back to life.

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

Circuitry

Whether or not the keys fob buttons are functioning, the circuit board inside your remote may be dirty. This issue can be fixed by a thorough inspection. Broken cases and water are the most common causes of dirty boards. A damaged case allows water and other debris to pass through and short out the electronics. Water can also eat through pins and vias, which are small connectors that are found on the board.

If you're skilled enough to open your key fob, and don't mind making an mess, you can remove the buttons from their sockets and put in new ones. 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 terminals and buttons back to their proper positions is usually enough to bring a non-working fob to working.

Non-Remote Transponder Chips

The non-remote chips that are sealed are more durable than remote fobs, however they can be cracked in the event of a hole being drilled into them or in the event that a door handle of a car or lawnmower runs over them. Fuse failures are usually the cause of non-remote chip failures.

If you're handy enough to remove the sealed key fob and can tolerate the mess, you can remove the circuit board and examine the fuse using a multimeter to ensure that it is functioning as intended. function. If you're not comfortable with this, go to your local Oreilly or hardware store and use their RF frequency tester. This will inform you whether the key fob sends signals.

Programming

Key fobs take a lot of abuse and aren't completely indestructible. They may lose their connection with the receiver inside your vehicle because of shocks or a low battery, requiring the reprogramming. A professional auto locksmith, or main dealer, can reprogram your keyfob and get it up and running again. In the event that resetting and fixing your key fob isn't working it may be time to replace it all over again.