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How to Fix a Key Fob That isn't Working

If your key fob won't work and you're not sure why, you can fix it with just a few steps. The first step is to be sure it's not the backup remote.

If your backup remote is unable to lock and unlock the doors of your vehicle, it is likely that the primary remote isn't working. Most problems with car key lock repair Near me remote keys result from battery or circuitry problems.

Battery

The battery in a key fob can wear out over time. It is relatively easy to replace the battery, however it is crucial to ensure that you choose the correct type that you can refer to your owner's manual, or contact the dealer for the manufacturer to find out what kind of battery you require. It is recommended to inspect the battery compartment carefully since dead batteries may release caustic chemicals that could cause damage to the remote. If replacing the batteries doesn't solve the issue it could be that there are other issues that require professional attention. If the buttons are damaged or stuck for instance it might be necessary to disassemble the remote and rework each component. You can also try reprogramming the vehicle to recognize the new remote.

Buttons

Key fobs may become filthy and worn out due to repeated use. It is not unusual to have buttons stop working, or to require a hefty push to make them work. This can be a huge hassle particularly if you're out of town and need to start your repair car key remote. Even broken or damaged buttons are often fixable with a little effort and materials you already have at home.

First, verify that the batteries are correctly installed and that the indentation on the back of the button is filled. Then, carefully open the remote and inspect the circuit board. Check for signs of corrosion or other indications that buttons are worn out or damaged, like missing paint that is conductive. Then, using a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that are damaged or have conductive paint missing. Avoid rubbing too hard because this could damage the conductive paint and stop the button from firing when it is it is pressed.

Also, carefully check the battery connector's terminals to ensure any loose solder connections. If this is the case, simply reconnecting them could restore function to the button. The same procedure can be used to restore function to any loose connections within the fob.

Finally, if any of the buttons made of rubber that are on the front of the key fob aren't working or require a long press to function, it is likely that the graphite disks at the back of the button are wearing out 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 cannot get the button to respond when you press it hard, it could be that the circuitry has failed. It is possible to fix this by cleaning and re-soldering the fob however, you should have another spare in case it does not work.

Circuitry

Whether or not the key fob buttons function, the circuit board inside your remote key repair near me might be dirty. A very thorough inspection is usually enough to fix this problem. The most frequent causes of dirty circuit boards is water and broken cases. A damaged case can allow water and other debris to get into the circuit board, which can cause it to short out. Water can also damage pins and connectors that are small on the board called via's.

If you're able to remove your key fob and aren't afraid of making a mess, we can remove the solder from the buttons and then solder new ones in their place. It's also worth examining the battery terminal connections. They can become very filthy and if they're not tight enough, the buttons might not function or even stay in their down position. Soldering the terminals and buttons back in their place is generally all it takes to restore keys that are not in functioning condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than remote fobs that contain them but they can still be broken key repair by a hole being drilled into them or run over by a lawnmower or car door handle. Failures of the fuse are typically the cause of non-remote chip failures.

If you're able to open a key fob that is sealed and are willing to put up with the mess, you can remove the circuit board and examine the fuse using a multimeter for proper diode function. If you're unsure about doing this, head to your local hardware store or the Oreilly's and they'll usually have a RF frequency tester that will tell you whether the key fob is sending a signal.

Programming

Key fobs are not indestructible and are susceptible to damage through a variety of causes. They may lose their connection to the repair car key remote's receiver due to shock or low battery, requiring the reprogramming. A professional auto key repair near me locksmith or main dealer can reprogram the keyfob and get it up and running again. If resetting or repairing your key fob fails, you may need to replace it.