How to Fix a Key Fob That isn't Working

If your key fob won't work then you can fix it by following some simple steps. The first step is to be sure it's not the backup remote.

If the backup is able to lock and unlock your car door, it is most likely an issue with the primary remote. Most problems with car remote keys result from battery or circuitry problems.

Battery

The battery in the key fob could be worn out over time. It is quite simple to replace a battery, although it is essential to ensure that you choose the correct type that you can refer to your owner's manual or contact the manufacturer's dealer to determine the type of battery you require. It is also a good idea to inspect the battery compartment thoroughly because dead batteries can release caustic chemicals that could cause damage to the remote key fob repair. If changing the batteries does not solve the issue, it may be that there are other issues that require attention by a professional. If buttons are damaged or stuck for instance, it may be necessary take the remote apart and G28Carkeys rework each component. You could also try reprogramming your car to recognize the new key fob.

Buttons

Key fobs may become dirty and worn out from repeated use. It is not common for buttons to stop working, G28carkeys or to require a long press to get them working. This can be extremely frustrating particularly if you're out of town and need to start your vehicle. Even worn-out or malfunctioning buttons are often fixable with a little time and the tools you already have at home.

First, ensure that the batteries are charged correctly and that the indentation on the back of the button is filled. Open the remote carefully and examine the circuit board. Examine for signs of rust or other signs the buttons are damaged or worn out. For instance there could be conductive paint missing. Use the Q-tip, dipped in alcohol, gently clean any membrane contacts that have damaged or where conductive paint is missing. Do not rub too vigorously, as this could erode the conductive paint and stop the button from firing when you press it.

Also, carefully check the battery connector's terminals to ensure a loose solder connection. If this is the case, soldering them back in place could restore functionality to the button. You can use the same process to restore functionality to any other loose connection within the fob.

Finally, if any of the buttons made of rubber on the front of the key fob have stopped working or require a very hard press to work it is likely that the graphite disks on the back of the button are deteriorating and require replacement. It is usually done 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 doesn't respond to a hard push It could be that the circuit board itself has gone bad. It is possible to fix this by cleaning and re-soldering the fob, but you should have another spare in case it doesn't work.

Circuitry

The circuit board inside your remote control may be dirty regardless of whether the buttons on the key fob function or not. This issue can be fixed by a thorough inspection. The most common causes of dirty circuit boards are water and broken cases. A broken case allows water and other debris to pass through and short circuit the electronics. Water can also eat away at pins and small connectors 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 solder in new ones. It's also worth examining the battery terminal connections. If they're loose, the buttons may not function or get stuck in their down position. Soldering the terminals and button's back in their place is generally all that's needed to return keys that are not in functioning 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 cracking in the event of a hole being drilled into them or if a car key immobiliser repair door handle or lawnmowers is pushed over them. The majority of non-remote transponder chip failures can be blamed on an exploded fuse.

If you're able to open up a sealed non-remote key fob and can tolerate the mess, you can easily remove the circuit board and test the fuse using a multimeter to ensure that it is functioning as intended. function. If you're not sure with this, you can go to your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob sends a signal.

Programming

Key fobs are not indestructible and are susceptible to damage by a variety of factors. They may lose their connection to the receiver in your car due to shock or low battery, requiring them to be reprogrammed. A professional auto locksmith or the main dealer can reprogram your keyfob to get it up and g28carkeys running again. If, in the unlikely event that resetting and repairing your key fob isn't working it may be time to replace it entirely.