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10 Facts About Remote Key Repair That Will Instantly Put You In The Best Mood
How to Fix a Key Fob That isn't Working

If your key fob won't work then you can fix it with just a few steps. First, ensure that it's not the backup remote.

If the backup is able to lock and unlock your car door, it is most likely an issue with the main remote. The majority of car remote key malfunctions are caused by circuitry or battery problems.

Battery

The battery in the key fob may be worn out over time. It is quite simple to change out batteries, but it is essential to make sure that you use the right type; you can look in your owner's manual, or contact the dealer for the manufacturer to find out the kind of battery you require. It is also a good idea to inspect the battery compartment carefully, as dead batteries sometimes leak caustic chemicals that can cause damage to the remote. If replacing the batteries doesn't solve the issue, it may be that there are other issues that require attention from a professional. If try this site are stuck or broken for instance it could be necessary to take the remote apart and rework each component. You could also try reprogramming your car to recognize the new key fob.

Buttons

Due to repeated use, key fobs can wear out and become dirty. This is not unusual however, it can cause buttons to stop functioning or require a difficult press to get them to work. This can be extremely frustrating especially if you're out of town and need to start your vehicle. Fortunately, even worn out or broken buttons can usually be fixed with a little time and a few materials you might already have in the house.

First, make sure 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 rust or other signs the buttons are damaged or worn out. For instance, conductive paint may be missing. Use a Q-tip dipped in rubbing alcohol, gently clean any membrane contacts that have damaged or where conductive paint is missing. Avoid rubbing too hard since this could cause damage to the conductive paint and stop the button firing when it is pressed.


Also, carefully check the battery connector's terminals for any loose solder connections. If this is the case, simply reconnecting them could bring back function to the button. You can follow the same process to restore functionality to any other loose connection in the fob.

In the end, if any of the buttons made of rubber on the front of the key fob have stopped functioning or require a long press to function it is likely the graphite disks that are on the back of the button are deteriorating and require replacement. This is usually done by rubbing a pencil on the disks. This should bring the button back to life.

If none of this is helpful or if the button still does not respond to a firm press, then it may be because the circuit board has gone bad. It is possible to fix this by cleaning and re-soldering your fob however, you should have a spare in case it doesn't work.

Circuitry

The circuit board in your remote control could be dirty regardless of whether the buttons on the key fob work or not. The issue can be solved through a thorough examination. Broken cases and water are the most common causes of dirty boards. A damaged case allows water and other debris to get in and short circuit the electronics. Water can also eat away at 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 solder in new ones. It's also worth examining the battery terminal connections. If they are loose, the buttons could not function properly or become stuck in their down position. Soldering the terminals and button's back in place is usually all it takes to restore the key fob that is not working to functioning condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than remote fobs that have them but they can be cracked by a hole that is drilled into them or over by a lawnmowers blade or car door handle. The failure of the fuse is usually to blame for non-remote chip failures.

If you're handy enough to remove a key fob that is sealed and can tolerate the mess, you can take off the circuit board and check the fuse using an instrument to verify diode function. If you don't feel comfortable with this, you can go to your local Oreilly or hardware store and utilize their RF frequency tester. This will let you know whether the key fob sends a signal.

Programming

Key fobs take many abuses and aren't indestructible. They may lose their connection with the receiver inside your vehicle due to shocks or low battery, requiring the reprogramming. A professional auto locksmith or main dealer can reprogram your key fob to get it working again. In the rarer case that resetting and fixing your key fob doesn't work it may be time to replace it all over again.

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