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How to Fix a Key Fob That isn't Working<br /><br />If your key fob isn't functioning There are a few simple steps that can fix it. First, make sure that it's not your backup remote.<br /><br />If your backup remote cannot unlock and lock the doors of your vehicle, it is likely that the primary remote is not working. Most problems with car remote keys result from battery or circuitry problems.<br /><br />Battery<br /><br />The battery in the key fob may get worn out over the course of time. It is relatively easy to replace batteries, but it is important to ensure that you choose the correct type and you can consult your owner's manual or contact the manufacturer's dealer to determine the type of battery you require. It is also essential to examine the battery compartment, as dead batteries can leak caustic chemicals which can damage the remote. If changing the batteries doesn't solve the issue it could be that there are other issues that require attention by a professional. If buttons are damaged or stuck for instance it could be necessary to take the remote apart and rework each component. You can also try reprogramming the vehicle to recognize the new key fob.<br /><br />Buttons<br /><br />Through frequent use, key fobs can become worn and dirty. This is not atypical however it can cause buttons to cease functioning or require a hard press for them to work. This can be very frustrating particularly when you're away from home and need to turn on your car. Even malfunctioning or worn-out buttons are often fixable with a bit of time and materials you already have at home.<br /><br /><br /><br />First, check that the batteries have been correctly placed and that the indentation at the back of the button is filled. Take the remote apart and look over the circuit board. Examine for signs of rust or other signs that buttons are worn out or damaged, like missing the conductive paint. Use a Q-tip that has been dipped in rubbing alcohol to gently clean any membrane contact that has become worn out or where conductive paint is missing. Don't rub too hard, as this could erode the conductive paint and stop the button from firing when you press it.<br /><br />Also, make sure to inspect the battery connector's terminals to ensure an unattached solder connection. If this is the case, reconnecting them could bring back function to the button. You can use the same method to restore functionality to any other loose connection inside the fob.<br /><br />If any of the rubber buttons on the front of the keyfob are not working or need to be pressed very hard, the graphite disks at the back of the button may have worn out and will need to replaced. This is usually done by rubbing a pencil over the disks, which will bring the button back to life.<br /><br />If none of this is useful, or if the button still does not respond to a firm press, then it may be because the circuit board has become damaged. This can sometimes be repaired by a quick clean, and refitting, but it's ideal to have a spare fob on hand in the event that this method doesn't work for you.<br /><br />Circuitry<br /><br />The circuit board of the remote control could be dirty, regardless of whether the buttons on the key fob work or not. The issue can be solved through a thorough examination. <a href="https://www.g28carkeys.co.uk/welwyn-garden-city-auto-locksmiths-near-me/">car keys repair near me</a> for dirty circuit boards is water and broken cases. A damaged case could let water and other debris to get into the circuit board, which can cause it to short. Water can also eat through pins and vias, which are small connectors found on the board.<br /><br />If you're able to open your key fob, and don't mind making some mess, we can remove the buttons from their sockets and then solder new ones. It's also worth examining the battery terminal connections. They can become extremely dirty and if they're loose the buttons might not function or even stay in their down position. Soldering the terminals and buttons back in their place is generally all it takes to restore the key fob that is not working to working order.<br /><br />Non-Remote Transponder Chips<br /><br />The non-remote chips that are sealed are more durable than their remote fobs. However, they are susceptible to cracking when a hole is made into them or if a car door handle or lawnmowers is pushed over them. Most of the time, non-remote transponder chip failures could be attributed to blowing fuses.<br /><br />If you're able to open a key fob that is sealed and can tolerate the mess, you can remove the circuit board and examine the fuse with a multimeter for proper diode function. 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 a signal.<br /><br />Programming<br /><br />Key fobs endure many abuses and aren't completely indestructible. 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 your key fob to get it back up and running. In the rarer case that resetting and repairing your key fob isn't working it could be the time to replace it all over again.<br /><br />
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