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How to Fix a Key Fob That isn't Working

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

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

Battery

The battery in the key fob may be worn out over time. It is simple to replace the battery. However it is crucial that you choose the right kind. You can consult your owner's guide or contact the manufacturer to find out the right kind. It is also essential to check the battery compartment as dead batteries can leak toxic chemicals that could damage the remote. If changing the batteries doesn't solve the issue it could be because there are other issues that require professional attention. For repair car keys instance, if the buttons seem to be stuck or broken, it may be necessary to take the remote apart and rework its components. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

key fob repair fobs can get dirty and worn-out from frequent use. This is not atypical however, it can cause buttons to cease working or require a very difficult press to get them to function. This can be a huge hassle especially if you're away from home and you need to start your car. Even worn-out or malfunctioning buttons can be fixed with a little effort and materials you already have at home.

First, make sure the batteries are charged correctly and that the indentation on the back of the button is filled. Take the remote apart and examine the circuit board. Look for signs of corrosion or other signs that the buttons are worn or damaged, such as missing the conductive paint. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has damaged or has conductive paint missing. Do not rub too vigorously, as this could erode the conductive paint and stop the button from firing when you press it.

Also, be sure to check the battery connector's terminals to ensure a loose solder connection. If this is the case, simply connecting them back may restore functionality to the button. You can follow the same process to restore functionality to any other loose connection within the fob.

Finally, if any of the rubber buttons on the front of the key fob stop functioning or require a hard press to work, it is likely that the graphite disks on the back of the button are deteriorating and require replacement. This can be done by rubbing a pencil over the disks, which 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 has failed. It is possible to fix this with a quick clean and replacing the solder, but it is ideal to have a spare fob on hand in the event that this method fails for you.

Circuitry

If the key fob buttons are working, the circuit board inside your remote might be dirty. A very thorough inspection is usually enough to fix this problem. The most frequent 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 electronic components. Water can also destroy pins and small connectors on the board, which are known as via's.

If you're able to open up your key fob and aren't afraid of a little mess, we can de-solder the buttons and put new ones in their place. Also, it's worth checking the connections between battery terminals. They can get very dirty and if they're loose the buttons might not function or may even remain in their down position. Soldering the terminals, and putting the button back in their place is generally all it takes to restore the key fob that is not working to working condition.

Non-Remote Transponder Chips

Sealed non-remote car key repairs transponder chips are more durable than remote fobs that have them however they are still susceptible to being 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 the cause of non-remote chip failures.

If you're handy enough where to repair car key remote open a sealed non-remote key fob and are willing to put up with the mess, you can remove the circuit board and test the fuse with an instrument to verify diode function. If you're not sure with this, go to your local Oreilly or hardware store and utilize their RF frequency tester. This will inform you whether 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, requiring the reprogramming. A professional auto locksmith or main dealer can reprogram your key fob and get it working again. In the event that resetting or repairing your key fob doesn't work it may be time to replace it completely.