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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 by following some simple steps. First, make sure that it's not the backup remote.

If the backup is able to lock and unlock your car doors, then there's a likely issue with the main remote. The most common causes for car key repair shop near me remote key fob repair near me failure are battery or circuitry issues.

Battery

It is not uncommon to find a battery on a car key fob to degrade. It is relatively easy to change out batteries, but it is essential to ensure you choose the correct type that you can refer to your owner's manual, or contact the dealer for the manufacturer to find out the kind of battery you require. It is also crucial to inspect the battery compartment, since batteries that are not working properly can release toxic chemicals that could damage the remote key repair - source for this article,. If changing the batteries doesn't solve the issue, it may be that there are other issues that require professional attention. For instance, if the buttons seem to be stuck or damaged it could be necessary to take the remote apart and rework its components. You could also try reprogramming your vehicle to recognize the new key fob.

Buttons

Key fobs can become filthy and worn out due to repeated use. This is not uncommon, but it can cause buttons to stop working or require a very hard press for them to function. This can be a huge hassle especially if you're away from home and you need to start your vehicle. Even worn-out or malfunctioning buttons can be fixed with a bit of time and materials you already have at home.

First, make sure that the batteries are properly installed and that the indentation at the back of the button is filled. Then, carefully open the remote and examine the circuit board. Examine for signs of rust or other indications that buttons are worn out or damaged, such as missing paint that is conductive. Use the Q-tip, dipped in alcohol, gently clean any membrane contacts that are damaged or have conductive paint missing. Be careful not to rub too hard, since this could cause damage to the conductive painting and prevent the button from firing when it is pressed.

Examine the battery connector's terminals carefully for any loose solder connections. If this is the case, reconnecting them can restore function to the button. The same method can be used to restore functionality to any other loose connections in the fob.

If, for instance, any of the rubber buttons on the front of the key fob aren't functioning or require a long press to function it is likely the graphite disks on 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 should bring the button to life.

If none of these solutions work or you cannot get the button to respond when pressed hard, it could be that the circuitry has failed. This can be fixed with a quick clean and refitting, but it's ideal to have a spare fob on hand in the event that this method doesn't work for you.

Circuitry

The circuit board inside your remote control could be dirty, regardless of whether the buttons on the key fob function or not. A very thorough inspection is usually enough to fix this problem. The most common causes for dirty circuit boards are water and broken cases. A damaged case can let water and other debris to enter the circuit board, which can cause it to short. Water can also damage pins and vias, which are small connectors on the board.

If you're skilled enough to open your key fob and don't mind making some mess, we can remove the buttons from their sockets and then solder 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 buttons back into place is typically all that's required to return the key fob that is not working to working condition.

Non-Remote transponder chips

Sealed non-remote transponder chips are more durable than the remote fobs that have them however they are still susceptible to being broken by a hole being made in them or pushed over by a lawnmower or door handle for a car. Failures of the fuse are typically the cause of non-remote chip failures.

If you're not comfortable opening the key repair shops near me fob, you may remove the circuitboard and use a multimeter to check that the diode is functioning properly. If you're not comfortable doing this, go to your local hardware store or Oreilly's, and they'll usually have a RFID frequency tester that can tell you whether the key fob is sending signals.

Programming

Key fobs endure lots of abuse and aren't impervious to damage. They may lose their connection with the receiver inside your vehicle due to shocks or a low-battery, which requires reprogramming. A professional auto locksmith or main dealer will be able to reprogram your key fob to get it functioning again. In the event that resetting and repairing your key fob isn't working it may be time to replace it all over again.