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 remote is able to lock and unlock your car key fob repairs near me door, then there is likely an issue with the primary remote. Most car remote key failures are caused by battery or circuitry problems.

Battery

The battery in a key fob can wear out over time. It is quite simple to change out the battery, however it is crucial to ensure that you use the right type; you can look in your owner's manual or contact the dealer of the manufacturer to determine the type of battery you require. It is also a good idea to examine the battery compartment carefully because dead batteries can leak harmful chemicals that can damage the remote. If changing the batteries does not solve the problem it could be that there are other issues that require attention from a professional. If the buttons are stuck or broken for instance it might be necessary to remove the remote key repair and rebuild each component. You could also try reprogramming your car to recognize the new key fob.

Buttons

From frequent use, key fobs can get dirty and worn. This is not unusual, but it can cause buttons to stop working or require a long press to function. This can be a huge hassle, especially if you are away from home and you need to start your vehicle. Fortunately, even worn out or damaged buttons can be fixed with a bit of time and some of the materials you may already have around the house.

First, check 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. Look for evidence of rust, or other indications that the buttons have been worn or damaged. For instance, conductive paint may be missing. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that is worn-out or has conductive paint missing. Don't rub too hard, as this could erode the conductive paint, and block the button from firing when you press it.

Also, carefully check the battery connector's terminals to ensure a loose solder connection. Soldering them back to their original position will restore the button's functionality If this is the case. The same method can be used to restore function to any other loose connections in the fob.

If, for instance, any of the buttons made of rubber that are on the front of the automotive key repair fob have stopped working or require a hard press to work it is likely the graphite disks that are on the back of the button are deteriorating and need to be replaced. This is usually done by rubbing a pencil across the disks, which will bring the button back to working.

If none of these solutions work, or if you still not be able to get the button respond when pressed hard, it is possible that the circuitry has failed. It is possible to fix the issue by cleaning and re-soldering your fob however, you should have another spare in case it does not work.

Circuitry

The circuit board of your remote control may be dirty regardless of whether the buttons on the key fob function or not. A thorough examination will usually resolve this issue. The most common causes of dirty circuit boards are water and damaged cases. A damaged case can allow water and other debris into the circuit board, causing it to short out. Water can also damage pins and vias, which are tiny connectors found on the board.

If you're able to open up your key fob, and you're not afraid of a little mess, we can de-solder the buttons and put new ones in their place. It's also worth checking the battery terminal connections. If they are loose, the buttons could not function properly or become stuck in their down position. Soldering terminals and buttons back into place is usually enough to restore a non-working fob to working.

Non-Remote Transponder Chips

The sealed non-remote chips are more durable than their remote fobs. However, they are susceptible to cracking if a hole is drilled in them or if a car door handle or lawnmower runs over them. Failures of the fuse are typically to blame for non-remote chip failures.

If you're not comfortable opening the key fob, you may remove the circuitboard and utilize a multimeter to check that the diode is operating correctly. If you're not confident doing this, visit your local hardware store or Oreilly's, and they'll usually have an RF frequency tester that will let you know if the key fob is sending signals.

Programming

Key fobs are subject to many abuses and aren't impervious to damage. They can lose their pairing with the receiver in your vehicle due to shocks or low-battery, which requires changing the program. A professional auto locksmith or main dealer will be able to reprogram your key fob and get it functioning again. If resetting or Remote Key Repair fixing the keyfob is not working it may be necessary to replace it.