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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 make sure it's not the backup remote.

If your backup remote is unable to lock and unlock the doors of your car, then it is most likely that the primary remote isn't working. Most car remote key failures result from circuitry or battery problems.

Battery

It is not uncommon for the battery inside the key fob for cars to degrade. It is relatively easy to replace batteries, but it is essential to ensure that you choose the correct type that you can refer to your owner's manual, or contact the dealer for the manufacturer to determine the type of battery you need. It's recommended to inspect the battery compartment with care since dead batteries may leak harmful 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 professional attention. For instance, if the buttons seem stuck or broken It may be necessary to take the remote apart and rework its components. You can also try reprogramming your car to recognize the new key fob.

Buttons

Key fobs can get dirty and worn out from repeated use. It is not common to have buttons stop working, or to require a hefty press to get them working. This can be frustrating particularly when you're away from home and have to turn on your car. Even malfunctioning or worn-out buttons are often fixable with a bit of time and the tools you already have at home.

First, verify that the batteries have been correctly placed and that the indentation on the back of the button has been filled. Take the remote apart and inspect the circuit board. Examine for evidence of rust, or other signs the buttons have been damaged or worn. 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 has conductive paint missing. Avoid rubbing too hard, as this can erode the conductive paint and Fob block the button from firing when it is the button is pressed.

Also, carefully check the battery connector's terminals to ensure any loose solder connections. If this is the case, simply soldering them back in place could bring back function to the button. The same method can be used to restore function to any other loose connections inside 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 hard press to work, it is likely that the graphite disks at the back of the button are wearing out and need to be replaced. This can be done by rubbing a pencil across the disks. This should bring the button back to working.

If none of this is helpful, or if the button does not respond to a hard press It could be because the circuit board itself is damaged. It is possible to fix the issue by cleaning and re-soldering your fob, but you should have a spare in case it does not work.

Circuitry

The circuit board in the 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 allows water and other debris to get in and short out the electronic components. Water can also damage pins and small connectors on the board called via's.

If you're handy enough to remove your key fob and don't mind a little mess, we can remove the solder from the buttons and put new ones in their place. Also, you should check the connections between battery terminals. They can get very filthy and if they're not tight enough, the buttons may not work or may even remain in their down position. Soldering the terminals and buttons to their proper positions is usually enough to return a malfunctioning fob to working.

Non-Remote transponder chips

Sealed non-remote transponder chips are much more durable than the remote fobs that contain them however they are still susceptible to being broken by a hole being that is drilled into them or over by a lawnmower or door handle for a repair car keys repair near me near me (http://galpaodainformatica.com.br/index.php?option=com_k2&view=itemlist&task=user&id=452584). Most of the time non-remote transponder chip failures could be attributed to a blown fuse.

If you're handy enough to open up the sealed key fob and are willing to put up with the mess, you can remove the circuit board and test the fuse using an instrument to verify diode function. If you're not sure with this, you can go to your local Oreilly or hardware store and utilize their RF frequency tester. This will inform you whether the key fob is sending a signal.

Programming

Key fobs aren't indestructible and are susceptible to being damaged by a lot of things. They can lose their pairing with the receiver inside your vehicle due to shocks or a low-battery, which requires reprogramming. A professional auto locksmith or main dealer, Remote control car key repairs can reprogram your key fob and get it back working again. In the rarer case that resetting and fixing your key fob isn't working it may be time to replace it entirely.