How to Fix a Key Fob That isn't Working

If your key fob isn't functioning There are a few simple steps that can fix it. The first step is to be sure that it's not the backup remote.

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

Battery

It is not uncommon for the battery inside a key fob for cars to degrade. It is simple to replace batteries. However it is essential that you use the correct kind. You can refer to your owner's manual or call the manufacturer to inquire about the correct type. It's also a good idea to inspect the battery compartment with care because dead batteries can leak caustic chemicals that can damage the remote. If replacing the battery does not solve the issue there may be additional issues requiring professional attention. For instance, if the buttons seem to be stuck or damaged it could be necessary to disassemble the Remote Key repair key (Gwwa.Yodev.Net) and rework its parts. You can also try reprogramming the vehicle to recognize the new fob.

Buttons

Through frequent use, key fobs could become worn and dirty. It is not unusual for buttons to cease working, or to require a hard press to get them working. This can be extremely frustrating particularly if you're out of town and need to start your car. Even malfunctioning or worn-out buttons can be fixed with a bit of time and materials you already have at home.

First, ensure that the batteries are properly charged and that the indentation on the back of the button is filled. Then, open the remote with care and examine the circuit board. Examine for signs of rust or other signs that the buttons are worn out or damaged, like missing paint that is conductive. Use a Q-tip dipped in rubbing alcohol, gently clean any membrane contacts that have become worn or have conductive paint missing. Avoid rubbing too hard because this could damage the conductive paint and stop the button from firing when it is pressed.

Check the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position will restore the button's functionality If this is the case. The same process can be used to restore function to any loose connections inside the fob.

If, for instance, any of the buttons made of rubber that are on the front of the key fob have stopped functioning or require a long press to function it is likely that the graphite disks on the back of the button are wearing down and need to be replaced. This is usually done by rubbing a pencil on the disks. This should bring the button back to life.

If none of these solutions work, or Remote Key Repair if you still not be able to get the button respond when you press it hard, it could be that the circuitry is failing. It is possible to fix the issue by cleaning and re-soldering the button however, you should have a spare in case it doesn't work.

Circuitry

Whether or not the key fob buttons function the circuit board in your remote might be dirty. This issue can be fixed by a thorough inspection. The most common causes for dirty circuit boards are water and broken cases. A broken case can let water and other debris into the circuit board, which can cause it to short. Water can also eat away at pins and connectors on the board, which are known as via's.

If you are handy enough to open your key fob, and you don't mind making an mess, you can take the buttons out of their sockets and solder in 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 to their original positions is often enough to return a malfunctioning fob back to working.

Non-Remote transponder chips

The non-remote chips that are sealed are more durable than their remote fobs, but they can be cracked in the event of a hole being drilled into them or when a door handle for a car or lawnmowers is pushed over them. Most of the time non-remote transponder chip malfunctions can be blamed on an exploded fuse.

If you're not confident opening the key fob, you can remove the circuitboard and use a multimeter to determine if the diode is working properly. If you're unsure about doing this, head to your local hardware store or the Oreilly's and they'll usually have a RFID frequency tester that can tell you whether the key fob sending signals.

Programming

Key fobs take lots of abuse and aren't impervious to damage. They may lose their connection with the receiver in your vehicle due to shocks or low battery, which calls for changing the program. A professional auto locksmith or main dealer can reprogram the keyfob and get it working again. If, in the unlikely event that resetting and repairing your key fob doesn't work, it could be time to replace it entirely.