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Reprogramming Car Keys Car keys with transponders are thought to keep cars more secure and are less likely to be duplicated by thieves. However, a key might need to be reprogrammed if it becomes damaged or lost. You can change the key fobs you own but you must be aware of the correct process. You should have these items to achieve the best results: Keys Nearly all modern vehicles require a transponder key or fob to work, which provides security and anti-theft protection. The keys have to be programmed to your particular vehicle and its systems by an authorized dealer or locksmith. They are costly to replace in the event of loss, so you should keep extras handy. You can find replacement key fobs in online stores, as well as numerous brick-and-mortar auto shops. But how do you know that the one you have bought is authentic? Can you tell whether the unit is programmed to work with another vehicle, or if it can be programmed again? To program a new car key you must first ensure that your vehicle is operating. Insert the key that you want to program into the ignition, but do not turn it. There are only a few seconds before the system will reset all commands and then exits the programming mode. Therefore, it is essential to move quickly and not pause between steps. To avoid this happening, shut off the engine. You can check the car's security system by turning the key to the “on” position, then back to the “off” position. The door locks should cycle and you will hear a sound that indicates that the process has been successful. Some newer cars use a rolling key technology that prevents thieves from using a stolen vehicle's key to start it. The technology is still susceptible to a method known as replay attacks that allows thieves to record the signal from the key fob of the car and then replicate it to unlock the car. To counter this, manufacturers have introduced a security feature called CAN bus protocol to thwart hacking attempts. Certain manufacturers also employ special encryption on their key fobs that cannot be decoded with a simple program. You should only attempt this method if your previous experience is in electronic devices. Consult your car's manual or visit the website of the manufacturer for information on how to program it. The steps will vary depending on the type of vehicle. Transponder chips Car keys that feature transponder chips require a special programming to function. While any hardware store can cut keys for you, the biggest problem is to make it work with your specific car. A reprogrammed key will need to match the exact identification number of your car, or it won't start the engine. Transponder chips are a common feature of modern cars and are designed to guard against car theft. The chip is a microcircuit which transmits a radio frequency signal when the key is placed in the ignition. The car then scans for the signal and begins the engine if it matches the original signal that was programmed into the vehicle. The vehicle is also programmed to shut down if it detects an invalid frequency. This makes it much harder for novice car thieves to connect a vehicle with hot wires and start it. A circuit board with an induction coil that connects the chip to the key. When the key is placed in the ignition the magnetic field is generated around the transponder. This creates a signal which is taken up by the coil and then transmitted to the key identification number. The key's identification number is sent back to the car, and the engine starts when the identification number is in line with. There are a variety of methods to program a key transponder, however all of them require the use of a specific tool. These tools are available online or from most automotive locksmiths. navigate to this site are not cheap, but they're vital for programming the chip to your car. You may also use a reprogrammable transponder key that has been previously programmed for another vehicle. In this case, make sure that the key has not been damaged or the transponder isn't altered in any way. The chip can be read using a scanner, or a computer equipped with an USB connector. Reprogramming an transponder's key is simple, however it requires special software and a scanning tool. If you're a beginner, it's best to seek help from an auto locksmith. Also, avoid buying secondhand keys, as they're likely to be programmed and won't work with your vehicle. EZ Installer For a long time, owners of cars who required replacement of their key fob had no other alternative than to visit an auto dealer to get their key paired to the vehicle. It is because for modern keys to function they must be “paired”. This required expensive and complicated equipment that was available only to dealers. The EZ Installer from Car Keys Express solves this issue for locksmiths and retailers by easing the process of pairing modern keys with vehicles. The EZ Installer, a simple “plug-and-play” OBD device, connects new keys to vehicles without the use of complex equipment or tokens for programming. It connects directly to the standard OBD port of the vehicle and uses a mobile application that provides easy-to-follow instructions. The EZ Installer is compatible with most newer vehicles, including those with proximity keys or push button start. To see if it will work for a particular vehicle, look up the compatibility guide on Tom's website. If the device is unable to program the remote or key purchased from Tom's into a vehicle that is compatible then a full refund is provided. Unlike traditional programming equipment that costs key professionals thousands of dollars through typical per-key “token” costs, the EZ Installer Pro doesn't charge these fees at all, so it can be used for as long as a retailer or key professional wants to keep it. The EZ Installer eliminates the need for expensive monthly service contracts and software updates. This lets retailers save money while providing their customers the same high-quality service as OEM equipment. It also offers a top warranty that covers both hardware and software for the duration of your life. You can also learn more about Locksmiths, auto mechanics and even owners of vehicles can use car key programming tools to create new keys for cars. These tools connect to the vehicle's immobilizer system to program new keys and remote controls. They can also be used to clone existing keys and create duplicate keys. These tools are a valuable tool for those who own a car. One of the most popular tools for programming car keys is the Autel Maxisys MS906BT. The scanner for diagnostics of vehicles is compatible with all major brands and comes with advanced OE features. car key reprogramming cost has the ability to program keys and the ability to save current important data. It can also reset the immobilizer, or clear the fault codes. The OTOFIX IM1 is an important tool to reprogramme keys for cars. This auto diagnostic scanner is able to read passwords from all major brands and comes with advanced features comparable to OE. It also performs online calibration and customization as well as reading EEPROM. The tool comes with a feature that allows it to bypass a PIN code for BMW and Mercedes. It can also read EEPROM, car MCU, and CAN EEPROMs for all major models. The XToolUSA bidirectional scanner is another popular option for reprogramming vehicles. This tool is a great tool for auto repair shops and locksmiths as it can read codes and key data from most vehicles within seconds. It also comes with a live test function that allows you to identify the problem quickly and effectively. While there are many different ways to reprogram your car, it is essential to use the right tools and to be aware of how to use them. Uncorrect programming can cause damage to the immobilizer of the vehicle and stop it from beginning. It is advised to seek advice from a professional prior to trying to reprogram a car key. Another option is to buy an entire kit that includes the key programmer, a remote control keys, and transponder chips. This will help ensure that you have everything you need to reprogramme your car key. However, this process will take longer and requires a basic understanding of electronic circuits and soldering.