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Reprogramming Car Keys Transponder keys for car keys are believed to make vehicles safer and are more difficult for thieves to duplicate. A key may have to be reprogrammed in event of damage or lost. You can change the key fobs you own however, you must be aware of the correct procedure. To get the best results, you'll need the following items: Keys Modern cars require a transponder key to operate. This is a security feature and anti-theft protection. These keys must be programmed to your particular vehicle and its features by a certified locksmith or dealer. They are costly to replace if they are lost and you should have spares in your car. You will also find replacement key fobs in various online stores and in many brick-and mortar auto shops. How can you be sure that the one you purchased is authentic? Do you know whether the unit has been programmed to work with a different vehicle, or if it can be programmed differently? If you are planning to program a new key, the first step is to ensure that your vehicle is on and running. Insert the key you wish to program into the ignition, but do not turn it. There are only a few seconds before the system will reset all commands and leaves the programming mode. Therefore, it is important to move quickly and not pause between steps. To prevent this from 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'll hear a chime signalling that the process has been successful. Some newer cars use a rolling key system, which stops thieves from using a stolen car's key to open it. This feature is still susceptible to a technique known as replay attack. It allows thieves to record and duplicate the signal generated by the car key fob to open the car. To prevent this, manufacturers have introduced an additional security feature known as the CAN bus protocol to thwart attacks on hacking. Some manufacturers use a special encryption on their keys that cannot be decoded using an easy program. These types of vehicles will need to be programmed by a professional, so you should only attempt this procedure with someone who has experience with electronic devices. It is recommended to refer to your car's owner manual or search for the manufacturer on the internet, since these steps vary by vehicle type. Transponder chips Transponder chip car keys require a special reprogramming to work. While any hardware store can cut a new key for you, the real challenge is making it function in conjunction with your particular car. The key you reprogrammed needs to match the exact identification number of your vehicle otherwise it won't even start the engine. Transponder chips, used to stop theft of cars, are a common feature of modern cars. The chip is a small microcircuit which transmits a radio-frequency signal when the ignition key is inserted. 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 car thieves with no experience to connect a vehicle with hot wires and then start it. A circuit board with an induction coil that connects the key to the chip. When the key is placed in the ignition it creates a magnetic field around the transponder. This generates a signal that is received by the coil and then transmitted to the key's identification number. The key's identification number is then transmitted back to the car and the engine will start if the identification number matches. There are many ways to program a transponder, however all of them require a special tool. You can purchase these tools on the internet or at many automotive locksmiths. They are not cheap, but they are vital for programming the chip into your car. You can also use a reprogrammable transponder key that was previously programmed for a different vehicle. In this case, ensure that the key has not been damaged or the transponder isn't altered in any way. To accomplish this, you can use a scanner or a computer equipped with an USB port to identify the chip and establish its identity. Reprogramming the transponder is a straightforward process, but requires specific software. It also requires a scanner tool. It is best to consult an auto locksmith for help for those who are new to the process. Avoid buying used keys because they might already be programmed, and they won't work with your car. EZ Installer For decades, car owners who required a replacement for their key fob had no choice than to visit a dealership to get their key paired to the vehicle. auto key programmers is because modern keys require to be “paired” to the vehicle of the owner in order to work, which required the use of expensive and complicated equipment that only dealers could access. The EZ Installer from Car Keys Express solves this problem for retailers and locksmiths by simplifying the process of pairing modern keys with vehicles. The EZ Installer is a basic, “plug and play” OBD device that pairs new keys with vehicles without the need for complex equipment or programming tokens. It connects directly to the standard OBD port of the vehicle and uses an app that can be downloaded on mobile devices to provide easy to follow instructions. The EZ Installer is compatible with all modern vehicles, including those that have proximity keys or push-button start. To see if it will work with a specific vehicle, refer to the compatibility guidelines on Tom's site. If the device fails to program a remote or a key purchased from Tom's into a compatible vehicle the full refund will be 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 is able to be used as long as a key professional or retailer needs. 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 top quality service as OEM equipment. It also offers a leading warranty that covers hardware and software for the remainder of your life. Tools Locksmiths, auto mechanics and even owners of vehicles can use car key programming tools to create new keys for cars. These tools communicate with the vehicle's immobilizer system to create new keys and remote controls. These tools can be used to make duplicates and clone keys. These tools are an invaluable tool for anyone who owns a car. One of the most well-known tools for programming car keys is the Autel Maxisys MS906BT. This vehicle diagnostic scanner offers advanced OE-level features and is compatible with the majority of the top brands. It has an important programming feature and can back up current key data. It can also reset the immobilizer or clear immobilizer fault codes. Another tool that is essential to reprogramme car keys is the OTOFIX IMM1. This auto diagnostic scanner can read passwords for most major brands and has advanced features that are OE-level. It can even perform online calibration, customization, and reading of EEPROM. The tool is also equipped with an option that allows it to bypass the PIN code of BMW and Mercedes. It also has the ability to read EEPROMs, car MCUs and CAN-EEPROMs for most major models. The XToolUSA Bidirectional Scanner is another option for reprogramming cars. This is a fantastic tool for auto repair shops as well as locksmiths since it can read codes and key data from the majority of vehicles in a matter of minutes. It also has a live test feature that can help identify the issue quickly. While there are many different ways to reprogram your car, it is essential to choose the right tools and to be aware of how to use them. Incorrect programming may cause damage to the immobilizer on the vehicle and prevent it from beginning. It is best to consult a professional before trying to reprogram a car key. Another option is to buy a kit that includes the key programmer, a remote control keys, and transponder chips. This will ensure that you are supplied with all the tools you need to reprogram the car key. However, this method will take longer and requires some knowledge of electronic circuits and soldering.