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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. The first step is to make sure that it's not the backup remote.

If your backup remote cannot lock and unlock the doors of your car, then it is likely that the primary remote is not working. The most common causes for car remote key failure are issues with the circuitry or battery.

Battery

It is not unusual for the battery inside the key fob for cars to wear out. It is quite simple to replace a battery, although it is essential to make sure that you choose the correct type and you can consult the owner's manual or talk to the manufacturer's dealer to find out what kind of battery you need. It is also a good idea to examine the battery compartment with care because dead batteries can leak harmful chemicals that can damage the remote. If changing the batteries doesn't solve the issue it could be because there are other issues that require professional attention. If the buttons are stuck or broken for instance it could 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, key fobs can become worn and dirty. It is not common to have buttons stop functioning, or require a long press to get them working. This can be extremely frustrating, especially if you are out of town and need to start your car. Even broken or damaged buttons are often fixable with a little effort and the tools you already have at home.

First, check that the batteries are up correctly and that the indentation on the back of the button is filled. Take the remote apart and examine the circuit board. Look for evidence of rust, or other indications that the buttons have been damaged or worn. For instance the paint that conducts electricity could be missing. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contacts that are worn or where conductive paint is missing. Don't rub too hard in order to damage the conductive paint, and block the button from firing when you press it.





Check the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position will allow the button to function again if this is the case. repair keys near me can follow the same process to restore functionality to any other loose connection in the fob.

If any of the rubber buttons on the front of the keyfob are not working or require being pressing extremely hard the graphite disks on the back of the button might have worn out and will need to replaced. This can be done by rubbing a pencil across the disks, which should bring the button back to working.

If none of these solutions work or you not be able to get the button respond when pressed hard, it is possible that the circuitry has failed. This can sometimes be repaired with a quick clean and refitting, but it's best to have an extra fob in case this method fails for you.

Circuitry

If the key fob buttons are working the circuit board that is inside the remote could be dirty. This problem can be resolved through a thorough examination. The most frequent causes of dirty circuit boards are water and broken cases. A damaged case can allow water and other debris into the circuit board, causing it to short. Water can also destroy pins and connectors that are small on the board, referred to as via's.

If you are handy enough to open your key fob, and you don't mind making a mess, we can take the buttons out of their sockets and then solder new ones. It's also worth examining the battery terminal connections. If they are loose, the buttons may not function properly or become stuck in their down position. Soldering the terminals back into place is usually enough to return a malfunctioning 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, but they are susceptible to breaking when a hole is made in them, or in the event that a door handle of a car or lawnmowers is pushed over them. Failures of the fuse are typically to blame for non-remote chips failures.

If you're handy enough to open a key fob that is sealed and can tolerate the mess, you can easily remove the circuit board and test the fuse using a multimeter for proper diode function. If you're not comfortable doing this, visit your local hardware store or Oreilly's and they usually have an RF frequency tester that will determine if the key fob is sending a signal.

Programming

car key remote repair near me are subject to lots of abuse and aren't completely indestructible. They can lose their pairing to the receiver in your car due to shock or a low battery, requiring them to be reprogrammed. A professional auto locksmith or the main dealer can reprogram your keyfob to get it functioning again. If, in the unlikely event that resetting and fixing your key fob doesn't work it may be time to replace it completely.