How to Fix a Key Fob That isn't Working

If your key fob doesn't work There are a few simple steps that can fix it. First, ensure that it's not your backup remote.

If the backup remote is able to lock and unlock your car door, then there's a likely issue with the main remote. The majority of car remote key repair key malfunctions are caused by circuitry or battery issues.

Battery

The battery inside a key fob can get worn out over the course of time. It is easy to replace batteries. However it is essential that you choose the right type. You can check your owner's guide or contact the manufacturer to inquire about the right type. It is also a good idea to inspect the battery compartment with care because dead batteries can leak caustic chemicals that can cause damage to the remote. If changing the battery doesn't solve the issue there may be additional issues that require attention from a professional. For example, if buttons seem stuck or damaged It may be necessary to disassemble the remote and rebuild its components. You could also try reprogramming the vehicle to recognize the new fob.

Buttons

Key fobs can get filthy and worn out due to frequent use. It is not common for buttons to cease working, or to require a long press to make them work. This can be extremely frustrating particularly if you're away from home and need to start your vehicle. Even malfunctioning or worn-out buttons are often fixable with a bit of time and materials you already have at home.

First, make sure the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully open up the remote and examine the circuit board. Check for signs of corrosion or other signs that the buttons are worn or damaged, like missing paint that is conductive. Utilizing a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that have become damaged or where conductive paint is missing. Be careful not to rub too hard, because this could damage the conductive paint and stop the button from firing when it is pressed.

Also, carefully check the battery connector's terminals to ensure an unattached solder connection. Soldering them back to their original position will allow the button to function again in the event that this is the case. The same procedure can be used to restore function to any other loose connections in the fob.

If, for instance, any of the buttons made of rubber on the front of the key fob aren't working or require a very long press to function it is likely that the graphite disks on the back of the button are wearing out and require replacement. This is usually done by rubbing a pencil over the disks, which should bring the button back to working.

If none of these solutions work or you are unable to get the button to respond when pressed hard, it is possible that the circuitry is failing. It is possible to fix this by a quick clean, and replacing the solder, but it is best to have an extra fob on hand in the event that this method doesn't work for you.

Circuitry

Whether or not the key fob buttons function the circuit board that is inside your remote might be dirty. This issue can be fixed through a thorough examination. The most frequent causes of dirty circuit boards is water and damaged cases. A broken case allows water and other debris to get in and short out the electronics. Water can also destroy pins and small connectors on the board called via's.

If you're handy enough to open your key fob, and you're not afraid of some mess, we can take off the buttons and put new ones in their place. Also, it's worth checking the connections between the battery terminals. They can become very dirty and if they're loose, the buttons might not function or even stay in their down position. Soldering the terminals and buttons back in their place is generally all it takes to restore the key fob that is not working to functioning condition.

Non-remote key fob repairs Transponder Chips

The sealed non-remote chips are more durable than remote fobs, however they are susceptible to cracking in the event of a hole being drilled in them or when a door handle for a car or lawnmower runs over them. Most of the time, non-remote transponder chip malfunctions could be attributed to an exploded fuse.

If you are not comfortable opening the key fob, take the circuit board off and use a multimeter to check that the diode is operating properly. 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 tell you whether the key fob transmitting a signal.

Programming

Key fobs are not indestructible and are susceptible to damage by a lot of things. They may lose their connection with the receiver in your vehicle because of shocks or a low-battery, which requires the reprogramming. A professional auto locksmith or dealer will be able to reprogram your key repairs near me fob and get it back up and running. In the event that resetting or repairing your key fob isn't working it may be time to replace it completely.