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How to Fix a Key Fob That isn't Working

If your key fob doesn't work A few easy steps can be taken to fix it. The first step is to be sure that it's not the backup remote.

If your backup remote cannot lock and unlock the doors of your car, it is likely that the main remote isn't functioning. The most common causes of key problems with your car remote are battery or circuitry issues.

Battery

It is not unusual for the battery in a car key repair cost (linked web site) key fob to wear out. It is easy to replace batteries. 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 essential to check the battery compartment, since dead batteries can leak toxic chemicals that could damage the remote. If changing the batteries does not solve the problem it could be because there are other issues that require professional attention. If buttons are damaged or stuck, for example, it may be necessary take the remote apart and rework each component. You could also try reprogramming your vehicle to recognize the new key fob.

Buttons

From frequent use, key fobs can become worn and dirty. This is not atypical however, it can cause buttons to cease functioning or require a hard press for them to work. This can be a hassle particularly when you're away from your home and you need to start your car. Fortunately, even worn-out or damaged buttons can be fixed with a bit of time and a few materials you have in the home.

First, ensure that the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully open up the remote and inspect the circuit board. Examine for evidence of rust, or other indications that the buttons have been worn or damaged. For instance the paint that conducts electricity could be missing. Utilizing a Q-tip dipped in alcohol, gently clean any membrane contacts that have become damaged or have conductive paint missing. Avoid rubbing too hard since this could cause damage to the conductive painting and prevent the button firing when the button is pressed.

Check the battery connector's terminals carefully for any loose solder connections. If this is the case, soldering them back in place may restore functionality to the button. The same process can be used to restore functionality to any other loose connections inside the fob.

If any of the rubber buttons on the front of the keyfob aren't functioning or require to be pressed extremely hard the graphite disks at the back of the button might have worn out and will need to 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 you are unable to get the button to respond when pressed hard, it could be that the circuitry is failing. It is possible to fix the issue by cleaning and re-soldering the button however, you should have a spare in case it does not work.

Circuitry

The circuit board in your remote control could 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 common causes of dirty circuit boards are water and broken cases. A damaged case can allow water and other debris to enter and short circuit the electronics. Water can also destroy pins and connectors on the board, which are known as via's.

If you're able to open your key fob and don't mind making an mess, you can take the buttons out of their sockets and then solder new ones. Also, it's worth checking the connections between battery terminals. If they're loose, the buttons may not function or get stuck in their down position. Soldering the terminals back to their original positions is often enough to bring a non-working fob to working.

Non-Remote transponder chips

Sealed non-remote transponder chips are much more durable than remote fobs they are contained in, but they can be damaged by a hole that is made in them or pushed over by a lawnmower or car key fob repairs near me door handle. The failure of the fuse is usually the cause of non-remote chip failures.

If you are not comfortable opening the key fob, car key repair cost you can take the circuit board off and use a multimeter to check that the diode is functioning properly. If you're unsure about doing this, head to your local hardware store or the Oreilly's and they will usually have an RF frequency tester that will determine if the key fob is sending signals.

Programming

Key fobs take many abuses and aren't completely indestructible. They can lose their pairing to the receiver in your car due to shock or low battery, which requires the reprogramming. A professional auto locksmith or a main dealer will be able to reprogram your key fob to get it functioning again. If resetting or fixing the keyfob is not working it is possible to replace it.