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How to Fix a Key Fob That isn't Working

If your key repairs fob won't work and you're not sure why, you can fix it with a few simple steps. First, check to make sure it's not the backup remote.

If your backup remote can lock and unlock the doors of your vehicle, it is likely that the main remote isn't functioning. The most common causes of key malfunctions for car remotes are circuitry or battery issues.

Battery

It is not uncommon for the battery inside a car key repairs key fob to get worn out. It is fairly easy to replace the battery, however it is important to make sure that you choose the correct type; you can look in your owner's manual or contact the manufacturer's dealer to determine the type of battery you need. It's also a good idea to inspect the battery compartment thoroughly since dead batteries may leak caustic chemicals that can damage the remote. If changing the battery doesn't fix the issue there may be additional issues requiring professional attention. If buttons are damaged or stuck for instance it could be necessary to remove the remote and rebuild each component. You can also try reprogramming the vehicle to recognize the new remote.

Buttons

Key fobs can get dirty and worn out from frequent use. It is not common for buttons to stop functioning, or require a long push to make them work. This can be frustrating, especially when you are away from home and have to turn on your car. Fortunately, even worn-out or broken buttons can usually be fixed with a little time and a few items you may already have around the house.

First, ensure that the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Examine for signs of rust or remote key fob repair near Me other indications that the buttons are damaged or worn. For instance the paint that conducts electricity could be missing. Then, using a Q-tip that has been dipped in alcohol, gently clean any membrane contacts that have damaged or where conductive paint is missing. Do not rub too vigorously in order to damage the conductive paint and prevent the button from firing when pressed.

Check the battery connector terminals for loose solder connections. Soldering them back in place will restore the button's functionality if this is the situation. The same procedure can be used to restore function to any other loose connections in the fob.

If any of the rubber buttons located at the front of the keyfob aren't working or need to be pressing extremely hard the graphite disks on the back of the button may have worn out and need to replaced. You can do this by rubbing a pen across the disks. This should bring the button to life.

If none of this is helpful, or if the button still does not respond to a hard press, then it may be that the circuit board itself is damaged. This can sometimes be repaired by a quick clean and re-soldering, but it is ideal to have a spare fob available in the event this method fails for you.

Circuitry

The circuit board in your remote control could be dirty regardless of whether the buttons on the key fob are working or not. A very thorough inspection will usually resolve this problem. Water and broken cases are the most common causes of boards that are dirty. A damaged case can allow water and other debris to enter the circuit board, which can cause it to short. Water can also damage pins and connectors that are small on the board, referred to as via's.

If you're skilled enough to open your key fob, and don't mind making some mess, we can take the buttons out of their sockets and then solder new ones. It's also worth examining the battery terminal connections. They can become extremely dirty and if they're loose the buttons might not function or may even remain in their down position. Soldering the terminals back into place is usually enough to return a malfunctioning fob to working.

Non-Remote Transponder Chips

Sealed non-remote transponder chip are more durable than the remote fobs that have them however they are still susceptible to being damaged by a hole that is that is drilled into them or over by a lawnmowers blade or Car key lock repair near me door handle. Failures of the fuse are typically the cause of non-remote chip failures.

If you are not comfortable opening the key fob, take the circuit board off and use a multimeter to check that the diode is working correctly. If you're unsure about doing this, visit your local hardware store or the Oreilly's and they usually have an radio frequency tester that can let you know whether the key fob repair service fob sending signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged by a variety of factors. They can break their connection with the receiver inside your vehicle due to shocks or a low-battery, which requires changing the program. A professional auto locksmith, or main dealer can reprogram your keyfob and get it up and running again. If resetting or repairing the keyfob is not working, you may need to replace it.