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How to Repair a Key Fob If you're unable to unlock your key fob to start your car, it may be time to take it to an automotive repair shop. Before you go to an automotive service you must first confirm a few things. Dead batteries are the primary reason for your key fob's inability to function. Most key fobs are powered by traditional 3V button cells which are available in the majority of stores. Dead Battery The battery in your key fob powers the remote functions, which enable you to unlock or open the trunk, tailgate or trunk of your car, or start the engine. But, just like super fast reply , the car key fob's battery will eventually fail. This can be a disaster and disrupt your day. Fortunately, you don't need to wait for your key fob to break down before deciding to replace the battery. It's a simple task to complete at home, so you don't have to hire an expert mechanic to replace the batteries on your keyfob. First look for a slot along the seam that divides top and bottom. Make use of a flathead screwdriver or a coin to gently pry the halves of the fob apart. After you've opened the fob, remove the old battery and then insert the new one in its place. After you've inserted the new battery then snap the fob halves together and test it. If the key fob isn't able to unlock your vehicle or start it, try holding the fob closer to the ignition switch. The radio transmitter on the key fob can send a signal to the vehicle's receiver from a distance. However, it will only work with a wireless remote powered by batteries located close to the ignition. It may not seem likely that your key fob will need a new battery, however, it's better to be prepared rather than have it occur at the worst possible time. By learning how to replace the car key fob's battery, you'll be able to restore the remote functions that make your Chevy so enjoyable to drive around in Normal and Decatur. Contact our service experts at Leman's Chevrolet City Llc if you want to learn more about repairs to your key fob. We'll show you how to keep your key fob in good shape. Damaged Circuit Board If a circuit board is damaged, it can impact the reliability of the whole device. It can also impact the performance of other components or parts that are on the device. Fortunately, there are several repair techniques that can repair a damaged circuit board. These methods will restore your device's functionality and make it appear new. Examine the device to determine what caused the damage. This is especially important if you are trying to solve a difficult circuit board. For key fob repair , you must keep track of any burn marks or physical damages to the circuit board. You should also check the voltage at different points on the board. This can be accomplished using an oscilloscope or a multimeter, depending on the complexity of the circuit board. Circuit boards that have been damaged are typically caused by malfunctioning components. This can include a bad transistor or diode. In other cases, the problem is caused by an unrepaired trace pathway. Traces are made of copper or silver and are susceptible to damage due to physical damage, severe power surges and metallic dust contamination and normal wear and tear. Before attempting to repair a circuit board, it is important to ensure that you have all the tools and equipment needed. This will ensure that the repair process is as smooth as it can be. For example you should have a soldering gun, sandpaper, and a desoldering tool available. Also, you should protect yourself from electrostatic discharges, which can cause damage to circuit boards. You can wear antistatic wristbands or even make sure your workstation is grounded to prevent ESD. Finally, it is important to clean the circuit board prior to beginning the repair process. This will stop further damage and reduce mistakes. You can clean the board using an swab that has been soaked in isopropyl (IPA) alcohol or a flux removal pen. In addition, you must make sure that the soldering pad is clean and free of any contaminants. Remove the extra tape from the areas to be repaired. This will prevent any additional damage to the tracks or pads. You can also employ a craft knife to carefully cut the extra tape. It is essential not to cut tracks or pads on the circuit board while cutting. Copies A key fob, or small electronic device, gives access to and control of a vehicle's features without the use of a physical key. These devices are subjected lots of abuse and are not impervious to destruction. They also have many different parts that may fail or be damaged. Fortunately, the majority of these components can be fixed. Contacts to the battery terminal and buttons are the most common failure point, but there are other things that could go wrong. Car key fobs make use of a radio frequency to communicate with the car. They are equipped with unique tags that match the car. When activated, they relay the data from the tag to the vehicle so that it can unlock or open the door or turn on the motor. A car key fob is more convenient than traditional keys that require being in ignition to activate the features. Sometimes, it can be a bit confusing when the car key fob starts acting up. Fortunately, the majority of problems with the key fob aren't serious and can usually be fixed at home. Cleaning the batteries or replacing them could be all that's needed to repair your car key fob. However, it is important to keep in mind that if you've tried all of these tricks and your key fob doesn't work, it might be time to replace it. Getting a new one can be more practical than trying to figure out what is wrong with your current key fob, and it's a lot safer than having no way to operate your vehicle. Depending on the make and model of your vehicle, you may buy a replacement fob through the dealer or an independent auto locksmith. The dealer can also modify the new fob to your specific vehicle. Certain car makers offer apps that you can download on your smartphone to allow you to unlock the doors and start the engine if you lose your key fob or it isn't working. This is an option for those with a spare key fob and who wish to secure their vehicle while they repair the damaged one.