10 Quick Tips About Remote Key Repair
How to Fix key fob repairs That isn't Working
If your key fob isn't functioning A few easy steps can be taken to fix it. First, make sure that it's not the backup remote.
If the backup is able to lock and unlock your car door, then there is likely an issue with the primary remote. Most car remote key failures are caused by circuitry or battery problems.
Battery
The battery in the key fob could wear out over time. It is relatively easy to replace a battery, although it is important to ensure that you use the right type that you can refer to your owner's manual, or contact the dealer of the manufacturer to find out what kind of battery you need. It is also essential to inspect the battery compartment, as dead batteries can leak toxic chemicals that could damage the remote. If changing the battery doesn't fix the issue there could be other issues that require attention from a professional. If the buttons are broken or stuck for instance it could be necessary to disassemble the remote and rework each component. You could also try reprogramming the vehicle to recognize the new device.
Buttons
Through frequent use, key fobs may get dirty and worn. This is not atypical however, it can cause buttons to stop working or require a very difficult press to get them to function. This can be extremely frustrating especially if you're away from home and you need to start your car. Fortunately, even worn out or malfunctioning buttons can often be fixed with a bit of time and a few materials you have in the home.
First, ensure that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Look for indications of rust or other indications that the buttons are damaged or worn out. For example 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 are damaged or have conductive paint missing. Do not rub too vigorously in order to damage the conductive paint and prevent the button from firing when it is pressed.
Also, carefully check the battery connector's terminals for any loose solder connections. Soldering them back into place will allow the button to function again if this is the case. The same process can be used to restore function to any other loose connections 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 long press to function, it is likely that the graphite disks that are on the back of the button are wearing out and need to be replaced. You can do this by rubbing a pencil over the disks. This should bring the button back to life.
If none of these solutions work or you are unable to get the button to respond when pressed hard, it is possible that the circuitry has failed. This can sometimes be repaired by a quick clean, and re-soldering, but it is best to have an extra fob in case this method doesn't work for you.
Circuitry
If the keys fob buttons are functioning, the circuit board inside the remote could be dirty. A thorough examination is often enough to resolve this problem. Water and broken cases are the most common causes of dirty boards. A damaged case could let water and other debris into the circuit board, which can cause it to short out. Water can also damage pins and connectors that are small on the board, referred to as via's.
If you're able to open your key fob, and you don't mind making some mess, we can take the buttons out of their sockets and then solder new ones. It's also worth checking the connections between battery terminals. If they're loose, the buttons could not work or even become stuck in their down position. Soldering the terminals, and putting the button back in their place is generally all that's required to return keys that are not in working condition.
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 if a hole is drilled into them or if a car door handle or lawnmower runs over them. The majority of non-remote transponder chips fail, and this can be blamed on blowing fuses.
If you're not confident opening the key fob, remove the circuitboard and utilize a multimeter to check that the diode is operating properly. If you're not comfortable doing this, head to your local hardware store or Oreilly's and they'll usually have an radio frequency tester that can determine whether the key fob sending signals.
Programming
Key fobs endure a lot of abuse and aren't indestructible. They may lose their connection with the receiver inside your vehicle due to shocks or a low battery, which calls for changing the program. A professional auto locksmith, or main dealer can reprogram the key fob and get it back functioning again. If resetting or fixing your keyfob does not work it may be necessary to replace it.