Solutions To The Problems Of Remote Key Repair

How to Fix a Key Fob That isn't Working
If your key fob won't work and you're not sure why, you can fix it with just a few steps. The first step is to be sure it's not the backup remote.
If your backup remote is unable to lock and unlock the doors of your car, then it is likely that the main remote isn't working. The most common causes of key problems with your car remote are issues with the circuitry or battery.
Battery
It is not unusual to find a battery on a car key fob to get worn out. It is relatively easy to replace batteries, but it is essential to make sure that you use the right type; you can look in your owner's manual or contact the dealer for the manufacturer to determine the type of battery you need. It is also crucial to check the battery compartment, since dead batteries can leak caustic chemicals which can damage the remote. If replacing the battery does not fix the issue, there may be other issues that require attention from a professional. For example, if buttons appear stuck or broken it could be necessary to disassemble the remote and rework its components. You can also try reprogramming the vehicle to recognize the new key fob.
Buttons
Key fobs can get filthy and worn out due to repeated use. It is not common to have buttons stop working, or to require a hard push to make them work. This can be frustrating particularly when you're away from home and you need to turn on your car. Fortunately, even worn out or damaged buttons can be fixed with a little time and some of the materials you may already have around the home.
First, verify that the batteries have been correctly placed and that the indentation on the back of the button is filled. Then, carefully remove the remote and examine the circuit board. Look for signs of corrosion or other signs that the buttons are worn or damaged, like missing the conductive paint. Then, using a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that have damaged or have conductive paint missing. Don't rub too hard as this can 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. If this is the case, simply reconnecting them may bring back function to the button. You can follow the same method to restore functionality to any other loose connection within the fob.
If any of the rubber buttons on the front of the keyfob aren't functioning or require to be pressing extremely hard the graphite disks on the back of the button might have worn out and require replacement. You can usually do this by rubbing a pen across the disks. This should bring the button back to life.
If none of this is useful, or if the button doesn't respond to a firm press It could be the case that the circuit board itself is damaged. It is possible to fix this issue by cleaning and re-soldering the button but you should also 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 work or not. A very thorough inspection is usually enough to fix this problem. key repair and broken cases are the most common causes of dirty boards. A broken case can allow water and other debris into the circuit board, causing it to short out. Water can also eat away at pins and connectors on the board, which are known as via's.
If you're able to open your key fob and aren't afraid of making a mess, we can de-solder the buttons and then solder new ones in their place. Also, you should check the connections between the battery terminals. They can get very filthy and if they're not tight enough, the buttons might not function or even stay 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 working order.
Non-Remote Transponder Chips
Sealed non-remote transponder chips are more durable than the remote fobs that contain them however they are still susceptible to being broken by a hole being that is drilled into them or over by a lawnmowers blade or car door handle. The majority of non-remote transponder chip failures can be blamed on blowing fuses.
If you're not comfortable opening the key fob, you can remove the circuitboard and utilize a multimeter to check that the diode is working correctly. If you're not sure with this, you can visit your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob is sending signals.
Programming
Key fobs are subject to lots of abuse and aren't completely indestructible. They can lose their pairing with the receiver in your vehicle due to shocks or low battery, which calls for the reprogramming. A professional auto locksmith or main dealer can reprogram the keyfob to get it working again. If resetting or replacing your keyfob does not work it may be necessary to replace it.