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How to Fix a Key Fob That isn't Working

If your key fob doesn't work There are a few simple steps that can be taken to fix it. First, make sure that it's not the backup remote.

If your backup remote is unable to lock key repair near me and unlock the doors of your car, then it is likely that the primary remote isn't functioning. The most common causes for car remote key lock repair near me (informative post) failure are battery or circuitry issues.

Battery

It is not uncommon to find a battery on a key fob for cars to degrade. It is easy to replace the battery. However, it is important that you use the correct type. You can check the owner's manual or contact the manufacturer to determine the correct type. It is also important to examine the battery compartment as dead batteries can leak caustic chemicals which can damage the remote. If replacing the batteries doesn't solve the problem it could be because there are other issues that require professional attention. If buttons are stuck or broken for instance, it may be necessary disassemble the remote and rework each component. You could also try reprogramming your car to recognize the new key fob.

Buttons

From repeated use, mobile key repair fobs could wear out and become dirty. It is not uncommon to have buttons stop functioning, or require a long press to get them working. This can be a huge hassle especially if you're away from home and need to start your car. Even malfunctioning or worn-out 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 remove the remote and look at the circuit board. Look for signs of corrosion or other signs that buttons are worn out or damaged, such as missing the conductive paint. Utilizing a Q-tip dipped in alcohol, gently clean any membrane contacts that have become worn or have conductive paint missing. Be careful not to rub too hard, since this could cause damage to the conductive paint and block the button from firing when it is the button is pressed.

Also, make sure to inspect the battery connector terminals for a loose solder connection. If this is the case, soldering them back in place can restore functionality to the button. The same method can be used to restore function to any other loose connections within the fob.

If any of the rubber buttons at the front of the keyfob are not working or need to be pressing very hard the graphite disks at the back of the button could have worn out and will require replacement. It is usually done by rubbing a pencil over the disks. This should bring the button to life.

If none of this is useful or if the button doesn't respond to a hard push It could be because the circuit board has gone bad. It is possible to fix this by cleaning and re-soldering your fob, but you should have a spare in case it does not work.

Circuitry

If the key fob buttons are working the circuit board that is inside the remote could be dirty. This problem can be resolved by a thorough inspection. Water and broken cases are the most frequent causes of boards that are dirty. A broken case can let water and other debris to get into the circuit board, which can cause it to short. Water can also damage pins and connectors on the board, referred to as via's.

If you're able to remove your key fob and aren't afraid of 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 battery terminals. If they're loose, the buttons might not work or even become stuck in their down position. Soldering the terminals and buttons to their original positions is often enough to bring a non-working fob to working.

Non-remote key fob repair Transponder Chips

Sealed non-remote transponder chip are more durable than the remote fobs that have them but they can be cracked by a hole made in them or pushed over by a lawnmowers or car door handle. Most of the time, non-remote transponder chip failures can be attributed to an exploded fuse.

If you're not comfortable opening the key repair service fob, you may remove the circuitboard and use a multimeter to check that the diode is working properly. If you don't feel comfortable with this, visit your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob is sending an RF signal.

Programming

Key fobs endure a lot of abuse and aren't indestructible. They may lose their connection with the receiver inside your vehicle because of shocks or a low battery, requiring changing the program. A professional auto locksmith or main dealer will be able to reprogram your key fob and get it functioning again. If, in the unlikely event that resetting or repairing your key fob fails, it could be time to replace it completely.