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How to Fix a Key Fob That isn't Working

If your key fob does not work and you're not sure why, you can fix it by following a few simple steps. The first step is to make sure that it's not the backup remote.

If your backup remote is unable to unlock and lock the doors of your vehicle, it is likely that the main remote isn't working. The majority of emergency car key repair remote key malfunctions result from circuitry or battery issues.

Battery

The battery inside the key fob could wear out over time. It is easy to replace the battery. However it is essential that you use the correct kind. You can check your owner's manual or call the manufacturer to inquire about the right kind. It is also important to inspect the battery compartment, as batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the batteries does not solve the issue it could be that there are other issues that require attention from a professional. If buttons are stuck or broken, for example it might be necessary to take the remote apart and rework each component. You could also try reprogramming the vehicle to recognize the new key fob.

Buttons

From frequent use, repair keys Near me key fobs can become worn and dirty. This is not unusual however it can cause buttons to stop working or require a difficult press to get them to function. This can be a huge hassle, especially if you are away from home and need to start your vehicle. Even malfunctioning or worn-out buttons can be fixed with a bit of time and materials you already have at home.

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

Check the battery connector terminals for loose solder connections. Soldering them back into place will restore the button's functionality if this is the case. 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 are not working or require being press very hard the graphite disks on the back of the button may have worn out and require replacement. This can usually be done by rubbing a pencil over the disks. This should bring the button back to life.

If all of this doesn't help, or if the button still doesn't respond to a firm press, then it may be the case that the circuit board itself has gone bad. It is possible to fix this issue by cleaning and re-soldering the fob however, you should have an extra in case it does not work.

Circuitry

If the key fob buttons function the circuit board in the remote could be dirty. A thorough inspection is often enough to resolve this issue. The most common causes of dirty circuit boards are water and damaged cases. A damaged case allows water and other debris to enter and short circuit the electronics. Water can also eat through pins and vias, which are the tiny connectors found on the board.

If you're handy enough to remove your key fob, and you're not afraid of a little mess, we can take off the buttons and put 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 may not work or even stick in their down position. Soldering the terminals back to their proper positions is usually enough to restore a non-working fob to a working condition.

Non-Remote transponder chips

The non-remote chips sealed in a sealed case are more durable than their remote fobs, however they are susceptible to breaking when a hole is made in them, or when a door key repair near me handle for a car or lawnmowers is pushed over them. Failures of the fuse are typically the cause of non-remote key fob repair near me chip failures.

If you're able to open up the sealed key fob and are able to bear the mess, you can remove the circuit board and test the fuse using an instrument to verify diode function. If you're not comfortable doing this, visit your local hardware store or Oreilly's, and they usually have an radio frequency tester that can let you know whether the key fob sending signals.

Programming

Key fobs aren't indestructible and can be damaged through a variety of causes. They can lose their pairing to the receiver in your car key repairs near me because of shock or a low battery, which requires them to be reprogrammed. A professional auto locksmith or a main dealer can reprogram your key fob to get it functioning again. In the rarer case that resetting and repairing your key fob doesn't work it may be time to replace it all over again.