How to Fix a Key Fob That isn't Working<br /><br />If your key fob does not work then you can fix it by following a few simple steps. The first step is to be sure that it's not your backup remote.<br /><br />If your backup remote cannot lock and unlock the doors of your car, then it is likely that the main remote is not working. <a href="https://www.g28carkeys.co.uk/car-key-repairs-near-me/">broken car key repair</a> for key malfunctions for car remotes are issues with the circuitry or battery.<br /><br />Battery<br /><br />It is not uncommon for the battery in the car key fob to degrade. It is relatively easy to replace batteries, but it is essential to ensure you use the right type that you can refer to the owner's manual or talk to the manufacturer's dealer to find out what kind of battery you need. It is also important to examine the battery compartment as dead batteries can leak caustic chemicals which can damage the remote. If changing the batteries does not solve the issue it could be because there are other issues that require professional attention. If 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 fob.<br /><br />Buttons<br /><br />Due to repeated use, key fobs may become worn and dirty. It is not unusual for buttons to stop functioning, or require a hefty push to make them work. This can be very frustrating particularly if you're away from home and need to start your car. Even broken or damaged buttons can be fixed with a little time and tools you already have at home.<br /><br />First, verify that the batteries are correctly inserted and that the indentation at the back of the button is filled. Take the remote apart and inspect the circuit board. Look for signs of corrosion or other indications that buttons are worn out or damaged, like missing paint that is conductive. Utilizing the Q-tip, dipped in alcohol, gently clean any membrane contacts that are worn or where conductive paint is missing. Don't rub too hard as this can damage the conductive paint, and block the button from firing when you press it.<br /><br />Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place will allow the button to function again if this is the situation. You can follow the same procedure to restore functionality to any other loose connection inside the fob.<br /><br />If, for instance, any of the rubber buttons on the front of the key fob stop working or require a very hard press to work it is likely the graphite disks on the back of the button are wearing out and require replacement. This is usually done by rubbing a pencil on the disks. This should bring the button back to its original state.<br /><br />If none of these solutions work, or if you still cannot get the button to respond when pressed hard, it could be that the circuitry is failing. This can sometimes be repaired with a quick clean and re-soldering, but it is recommended to have an additional fob on hand in the event that this method doesn't work for you.<br /><br />Circuitry<br /><br />The circuit board in your remote control may be dirty, regardless of whether the buttons on the key fob work or not. The issue can be solved by a thorough inspection. Water and broken cases are the most common causes of dirty boards. A broken case allows water and other debris to enter and short circuit the electronics. Water can also destroy pins and small connectors on the board called via's.<br /><br />If you're handy enough to open up your key fob, and you're not afraid of making a mess, we can de-solder the buttons and solder new ones in their place. It's also worth checking the battery terminal connections. If they're loose, the buttons might not function properly or become stuck in their down position. Soldering the terminals and buttons to their original positions is often enough to return a malfunctioning fob to a working condition.<br /><br />Non-Remote Transponder Chips<br /><br />Sealed non-remote transponder chips are much more durable than the remote fobs that have them however they are still susceptible to being broken by a hole being made in them or pushed over by a lawnmowers or car door handle. Fuse failures are usually to blame for non-remote chip failures.<br /><br />If you're not comfortable opening the key fob, remove the circuitboard and utilize a multimeter to check that the diode is operating correctly. If you're not comfortable with this, go to your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob transmits an RF signal.<br /><br /><br /><br />Programming<br /><br />Key fobs endure many abuses and aren't impervious to damage. They can lose their pairing with the receiver inside your vehicle due to shocks or low-battery, which requires reprogramming. A professional auto locksmith or main dealer can reprogram your key fob to get it back up and running. In the event that resetting and fixing your key fob fails it could be the time to replace it entirely.<br /><br />