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How to Fix a Key Fob That isn't Working

If your key fob isn't functioning A few easy steps can fix it. The first step is to be sure that it's not the backup remote.

If the backup can lock and unlock your car doors then there's a likely issue with the primary remote. The most frequent causes of repair car keys repairs keys near me - telegra.ph, remote key failure are battery or circuitry issues.

Battery

The battery inside a key fob can be worn out over time. It is quite simple to change out the battery, however it is important to make sure that you choose the correct type and you can consult the owner's manual or talk to the manufacturer's dealer to find out the kind of battery you require. It is also essential to inspect the battery compartment as batteries that are not working properly can release caustic chemicals which can damage the remote. If changing the batteries does not solve the issue it could be that there are other issues that require attention by a professional. If buttons are broken or stuck for instance, it may be necessary remove the remote and rebuild each component. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

Key fobs can get dirty and worn-out from repeated use. This is not atypical however, it can cause buttons to cease working or require a long press to function. This can be extremely frustrating particularly if you're out of town and need to start your car. Even broken or damaged buttons are often fixable with a little effort and tools you already have at home.

First, ensure that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open the remote and inspect the circuit board. Check for indications of rust or other signs the buttons are worn or damaged. For instance, conductive paint may be missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has become damaged or has conductive paint missing. Do not rub too vigorously, as this could erode the conductive paint, and block the button from firing when it is pressed.

Also, be sure to check the battery connector's terminals for any loose solder connections. If this is the case, soldering them back in place may bring back function to the button. The same procedure can be used to restore functionality to any other loose connections inside the fob.

If any of the rubber buttons on the front of the keyfob isn't functioning or require to be press very hard, the graphite disks at the back of the button could have worn out and will need to replaced. You can usually do this by rubbing a pencil over the disks. This will bring the button back to life.

If none of this is useful or if the button doesn't respond to a firm press, then it may be the case that the circuit board itself is damaged. It is possible to fix this by a quick clean, and refitting, but it's best to have an extra fob in case this method fails for you.

Circuitry

Whether or not the key fob buttons are working, the circuit board inside your remote might be dirty. A thorough inspection will usually resolve this issue. Broken and damaged cases are the most common causes of boards that are dirty. A broken case can let water and other debris to enter the circuit board, which can cause it to short out. Water can also destroy pins and small connectors on the board called via's.

If you're able to open your key fob and don't mind some mess, we can de-solder the buttons and solder new ones in their place. It's also worth checking the battery terminal connections. They can get very dirty and if they're loose the buttons may not work or even stick in their down position. Soldering the terminals and buttons back into place is typically all that's required to return keys repair that are not in functioning condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than remote fobs that have them but they can be cracked by a hole made in them or pushed over by a lawnmowers blade or car key repair near me door handle. The majority of non-remote transponder chips fail, and this can be attributed to blowing fuses.

If you're not comfortable opening the key fob, remove the circuitboard and use a multimeter to determine if the diode is working properly. If you're unsure about doing this, head to your local hardware store or Oreilly's and they will usually have an RFID frequency tester that can determine if the key fob is sending signals.

Programming

Key fobs aren't indestructible and can be damaged through a variety of causes. They can lose their pairing with the receiver in your vehicle due to shocks or low battery, requiring the reprogramming. A professional auto locksmith, or the main dealer can reprogram the key fob and get it back functioning again. In the rarer case that resetting and repairing your key fob doesn't work, it could be time to replace it completely.