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Reprogramming Car Keys Car keys with transponders are believed to make vehicles safer and are less likely to be duplicated by thieves. A key may have to be reprogrammed in case of damage or lost. You can reprogram your key fobs at home, however you should be aware of the correct procedure. For the best results you'll need the following items: Keys Most modern cars require a transponder keys to operate. automotive key programming is a security feature and protection against theft. These keys are programmed by a locksmith or authorized dealer to work with your car's systems and specific model. It is expensive to replace them if they become lost, so it's better to have spares in your possession. You can also find replacement key fobs in various online stores and in a variety of brick-and-mortar automotive shops. How can you be sure that the one you purchased is authentic? Are you able to tell whether the unit has been programmed to work with a different vehicle or if it could be programmed differently? To program a new car keys, you must first verify that your vehicle is running. Insert the key you wish to reprogram into the ignition, but do not turn it. There are only a few seconds left before the system will reset all commands and leaves the programming mode. It is important that you move quickly and don't wait between each step. Shut off the engine to stop this. You can check the car's system by turning the key to the “on” position and back to the “off” position. The door locks should cycle, and you will hear a sound that indicates that the procedure was successful. Some newer cars use a rolling key technology, which prevents thieves from using a stolen vehicle's key to open it. This technology is still vulnerable to a technique dubbed replay attack which allows thieves to record the signal received from the vehicle's key fob, then reproduce it to unlock the car. To stop this, manufacturers have added an additional security feature known as the CAN bus protocol to thwart hacking attempts. Some manufacturers use a special encryption on their keys that cannot be decoded by an ordinary program. These kinds of cars will need to be programmed by a professional, so you should only attempt this procedure if you have experience working with electronics. It's a good idea to read your car's owner manual or search for the manufacturer on the internet, since the steps differ based on vehicle model. Transponder chips Car keys with transponder chips require a special reprogramming to function. While any hardware store can cut keys for you, the real issue is how to integrate it in conjunction with your particular car. The key has to be programmed to match the exact identification code on your vehicle, or else it won't be able to start. Transponder chips are a typical 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 detects the signal and then starts the engine if it matches the original one that was programmed into the vehicle. The car also shuts down if the frequency is invalid. This makes it harder for novice car thefts to hot-wire a vehicle and then turn it on. The chip and the key are connected via the circuit board which includes an induction coil. When the key is placed in the ignition it creates an electromagnetic field around the transponder. This produces a signal which is amplified by the coil which sends it to the key's identification number. The key's identification number is then transmitted back to the car, and the engine starts when the identification number is in line with. There are several ways to program a key transponder, however all require an instrument that is specifically designed for. These tools can be bought on the internet or at most auto locksmiths. They're not cheap, but they are vital for programming the chip to your car. You may also utilize a transponder that is reprogrammable that was previously programmed for another vehicle. In this case you'll need to make sure that the key is not damaged or the transponder has been altered in any way. To do this, you'll need scanners or a computer equipped with an USB port to scan the chip and determine its identity. Reprogramming a transponder is a simple procedure, but it requires specific software. It also requires a scanner tool. If you're new to the process, it's best to seek the assistance of an auto locksmith. You should also avoid buying second-hand keys, since they're probably already programmed and won't work with your vehicle. EZ Installer For decades, car owners who needed to replace their key fob had no choice than to visit a dealer to get their key linked to their vehicle. This is because modern keys need to be “paired” to a specific vehicle to function and work, which required the use of expensive and complicated equipment that only dealers could access. The EZ Installer by Car Keys Express simplifies the process of pairing modern keys with vehicles used by locksmiths and retailers. The Easy Installer, a straightforward “plug-and-play” OBD device, connects new keys to vehicles without the need for complex equipment or tokens for programming. It connects directly to the standard OBD port of the vehicle, and runs a mobile application to provide simple to follow instructions. The EZ Installer works with all newer vehicles, including those with proximity keys or push button start. To determine if it'll be compatible with your specific vehicle, refer to the compatibility guide on Tom's website. If the device is unable to program a remote or a key purchased from Tom's into a vehicle compatible then a full refund is provided. In contrast to traditional programming equipment, which costs key retailers and professionals tens of thousands of dollars in “token” fees per key, the EZ Installer Pro does not charge these costs. It can be used for as long as a key professional or retailer needs. The EZ Installer also eliminates the necessity for expensive monthly service contracts and updates, meaning that it can save retailers money while still offering customers the same high-quality service as OEM equipment. It also offers an industry-leading warranty that covers all hardware and software for the duration of its life. You can also learn more about Locksmiths, auto mechanics and vehicle owners can use car key programming tools to create new keys for cars. These tools connect to the vehicle's immobilizer system to create 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 anyone who has a vehicle. Autel Maxisys MS906BT is among the most sought-after tools for programming keys for cars. The scanner for diagnostics of vehicles has advanced features that are OE-grade and is compatible with most of the major brands. It has an essential programming feature and can back up current key data. It also has the capability of resetting the immobilizer and clearing immobilizer fault codes. Another important tool for reprogramming car keys is the OTOFIX IM1. This auto diagnostic scanner is able to read passwords from all major brands and comes with advanced features that are OE-level. It also performs online calibration and customization as well as reading EEPROM. It also comes with an option that allows it to bypass the PIN code for BMW and Mercedes. It can also read EEPROMs, car MCUs and CAN-EEPROMs for most major models. The Bidirectional scanner XToolUSA is a popular option for reprogramming vehicles. This tool is a great tool for auto repair shops as well as locksmiths because it can read key codes and other data from all vehicles in just a few minutes. It also has an active test feature that helps find the problem quickly. There are a variety of ways to reprogram your car, it is essential to use the right tools and know how to make use of them. Uncorrect programming can damage the vehicle's immobilizer and stop it from beginning. It is best to seek advice from a professional prior to trying to reprogram your car key. You can also purchase a kit which includes a key programmer, remote control key and transponder chip. This will help ensure that you have everything you need to reprogramme your car key. This method takes longer and requires knowledge of soldering and electronic devices.