How to Fix a Key Fob That isn't Working

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

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

Battery

The battery in a key fob can get worn out over the course of time. It is relatively easy to replace batteries, but it is essential to make sure that you select the correct one and repair Car key Remote you can consult your owner's manual or repair car key remote contact the dealer for the manufacturer to find out what kind of battery you require. It is also essential to check the battery compartment, since batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the batteries does not solve the problem it could be because there are other issues that require professional attention. For instance, if buttons seem to be stuck or broken it could be necessary to disassemble the remote and rework its parts. You could also try reprogramming the vehicle to recognize the new remote.

Buttons

key repair shops near me fobs can get dirty and worn out from repeated use. It is not unusual to have buttons stop working, or to require a hard press to make them work. This can be very frustrating, especially if you are away from home and you need to start your vehicle. Fortunately, even worn-out or broken buttons can usually be fixed with a little time and a few items you might already have in the home.

First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open the remote and examine the circuit board. Check for signs of corrosion or other signs that buttons are worn out or damaged, like missing conductive paint. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has worn-out or has conductive paint missing. Be careful not to rub too hard, since this could cause damage to the conductive paint and stop the button from firing when it is it is pressed.

Check the battery connector's terminals for loose solder connections. If this is the case, simply soldering them back in place may restore functionality to the button. The same procedure can be used to restore function to any other loose connections inside the fob.

If any of the rubber buttons on the front of the keyfob isn't working or need to be pressed extremely hard the graphite disks at the back of the button might have worn out and will require replacement. You can do this by rubbing a pencil over the disks. This should bring the button to life.

If none of these solutions work, or if you still not be able to get the button respond when pressed hard, it could be that the circuitry is failing. It is possible to fix this by cleaning and re-soldering your fob but you should also have an extra in case it does not work.

Circuitry

If the keys fob buttons are functioning the circuit board in your remote may be dirty. A very thorough inspection is often enough to resolve this issue. The most common causes for dirty circuit boards is water and damaged cases. A broken case can let water and other debris into the circuit board, which can cause it to short. Water can also damage pins and connectors on the board called via's.

If you're skilled enough to open your key fob, and you don't mind making an mess, you can remove the buttons from their sockets and solder in new ones. It's also worth checking 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 and buttons back in place is usually all it takes to restore keys that are not in working order.

Non-Remote Transponder Chips

The non-remote chips sealed in a sealed case are more durable than remote fobs. However, they are susceptible to breaking when a hole is made in them or if a Repair Car key Remote door handle or lawnmowers is pushed over them. The failure of the fuse is usually to blame for non-remote chips failures.

If you're not confident opening the key fob, take the circuit board off and use a multimeter to determine if the diode is functioning properly. If you're not comfortable doing this, go to your local hardware store or the Oreilly's and they will usually have an RF frequency tester that will determine whether the key fob is sending a signal.

Programming

Key fobs are subject to a lot of abuse and aren't impervious to damage. They can break their connection with the receiver in your vehicle because of shocks or a low-battery, which requires changing the program. A professional auto locksmith or main dealer will be able to reprogram your key fob and get it functioning again. If resetting or repairing your key fob fails it is possible to replace it.