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Reprogramming Car Keys Transponder keys are said to be more secure for cars and harder to copy by thieves. However, a key may require reprogramming if it becomes damaged or lost. You can program key fobs yourself but you must be aware of the correct process. It is essential to have these items to achieve the most effective results: Keys Most modern vehicles require a transponder key or fob in order to operate, providing security and anti-theft protection. These keys must be programmed to your particular vehicle and its features by an authorized dealer or locksmith. They can be costly to replace if they are lost, so it is recommended to keep spare keys in the car. You can purchase key fobs that can be replaced in online stores as well as many brick and mortar auto shops. How can you ensure that the one you bought is genuine? Can you tell whether it was programmed for a different vehicle or if it is able to be reprogrammed to fit your vehicle? If you are planning to program a new key, the first step is to ensure that your car is operating. Insert the key you want to program into the ignition without turning it. There are only just a few seconds before the car's system reverts the commands and exits programming mode. Therefore, it is important to move fast and not be able to wait 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 and then back to the “off” position. The door locks should be able to cycle, and you'll hear a chime to indicate that the procedure was successful. Certain newer vehicles utilize rolling keys to stop thieves from using stolen keys to start the vehicle. The feature is still vulnerable to a technique dubbed replay attack. It allows thieves to record and reproduce the signal from the car key fob to open the car. To prevent this, manufacturers have introduced a security feature called CAN bus protocol to stop attacks on hacking. Certain manufacturers employ a specific encryption on their keys, which can't be decoded with an easy program. You should only try this process if your experience is with electronics. Consult your car's manual or go to the manufacturer's website to find out how to program it. The steps will vary depending on the type of vehicle. Transponder chips Car keys with transponder chips require a specific reprogramming to function. While any hardware store can cut keys for you, the main problem is to make it work to work with the specific car you own. The key has to be programmed to match the exact identification number of your car, or else it will not start. Transponder chips are a typical feature in modern cars and are designed to prevent car theft. The chip is a microcircuit that 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 frequency that was programmed into the vehicle. The vehicle is also programmed to stop when it detects an incorrect frequency. This makes it much harder for novice car thieves to connect a vehicle with hot wires and then start it. A circuit board equipped with an induction coil that connects the chip to the key. When the key is put in the ignition it creates a magnetic field created around the transponder. This generates a signal, which is taken up by the coil and sent to the key's identification number. The key's identification code is transmitted back to the car and the engine will start when the identification number is in line with. There are many ways to program a key transponder, however each requires a special tool. You can buy these tools online or at most locksmiths for cars. They are not cheap, but they are essential for programming the chip to your vehicle. You can also make use of a transponder key that can be reprogrammed that was previously programmed for another vehicle. In this instance you'll need to make sure that the key isn't damaged or the transponder has been altered in any way. To check this, you'll need scanners or a computer with a USB port to read the chip and determine its identity. Reprogramming the transponder key is easy, but it will require special software and a scanning tool. If you're just beginning it is recommended to seek help from an auto locksmith. Avoid buying used keys as they could already be programmed and will not be compatible with your vehicle. EZ Installer In the past those who wanted to replace their key fob were forced to visit a dealer to have it electronically paired with the vehicle. This is because modern keys need to be “paired” to a specific vehicle in order to function in a way that required 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 retailers and locksmiths. The EZ Installer is a basic, “plug and play” OBD device that connects new keys to vehicles, without the need for complicated equipment or programming tokens. It connects directly to the standard OBD port on the vehicle, and runs a mobile application that provides easy-to-follow instructions. The EZ Installer is compatible with all modern vehicles, including those that have proximity keys or push-button start. Go to the compatibility guide on Tom's website to see if your vehicle is compatible. If the device is unable to program a remote or a key purchased from Tom's into a vehicle that is compatible the full refund will be provided. Contrary to conventional programming equipment which costs retailers and key professionals many thousands of dollars in “token” fees per key, the EZ Installer Pro does not charge these costs. It is able to be used for as long as a key professional or retailer wants. The EZ Installer also eliminates the need for costly monthly service agreements and updates, which means it will reduce costs for retailers while providing the same quality service as OEM equipment. car key programmer offers a leading warranty that covers both hardware and software for the remainder of your life. You can also learn more about Locksmiths, auto mechanics and owners of vehicles can utilize car key programming tools to program new keys for vehicles. These tools communicate with the vehicle's immobilizer to program new keys, and are remotely controlled. They can also be used to copy existing keys and create duplicates. These tools are an essential tool for anyone who owns a car. Autel Maxisys MS906BT is one of the most sought-after tools for programming keys for cars. This scanner for vehicle diagnostics is compatible with the major brands and provides advanced OE features. It comes with a key programming feature that allows you to backup current key data. It also resets the immobilizer, or clear the fault codes. Another important tool for car key reprogramming is the OTOFIX IMM1. This auto diagnostic scanner is able to read passwords from all major brands and comes with advanced OE-level features. It can even perform online calibration and customization as well as reading of EEPROM. It also comes with the ability to bypass a PIN code for BMW and Mercedes. It also has the ability to read EEPROM, car MCU and CAN EEPROM for most major models. The bidirectional scanner XToolUSA is another popular choice to reprogramme vehicles. This tool can read codes and key information from most vehicles in just a few seconds, making it a great tool for auto shops and locksmiths. It also has an active test function that helps identify the problem quickly and efficiently. While there are many different ways to reprogram a car it is essential to select the appropriate tools and to know how to use them. Incorrect programming may damage the vehicle's immobilizer and prevent it from starting. It is best to seek advice from a professional prior to attempting to reprogram a car key. You can purchase a kit that includes the key programmer, a remote control key, and transponder chip. This will ensure that you have everything you need to reprogramme your car key. This method is more time-consuming and requires knowledge of soldering and electronics.