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Reprogramming Car Keys Transponder keys are thought to be more secure for cars and are more difficult to copy by thieves. However, keys may require reprogramming when it becomes damaged or lost. You can reprogram key fobs yourself however, you must be aware of the correct procedure. You should have these items to get the most effective results: Keys Almost all modern cars require a transponder fob or transponder keys to operate, ensuring security and protection against theft. The keys have to be programmed to your particular vehicle and its features by an authorized dealer or locksmith. They are costly to replace if lost therefore, it is recommended to keep spare keys in the car. You can find key fobs to replace them in online stores as well as many brick-and mortar auto shops. How can you know that the one you bought is authentic? Can you tell whether the unit is 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 want to program into the ignition, but do not turn it. You have just a few minutes before the system resets all commands and leaves the programming mode. For this reason, it is important to move fast and not pause between steps. To avoid this happening, shut off the engine. Switch the key from “on” to “off” to test the system. There should be a chime to indicate that the process was successful. The door locks will cycle. Certain newer vehicles have rolling key technology that prevents thieves from using stolen cars' key to start it. This technology is still vulnerable to a method known as replay attack which allows thieves to record the signal from the key fob of the car and reproduce it later to open the car. To combat this, manufacturers have added a security feature known as the CAN bus protocols to ward off hackers from gaining access to the vehicle. Certain manufacturers also employ special encryption on their key fobs, that cannot be decoded with a simple program. These types of cars will need to be programmed by a professional. Therefore, you should only attempt this procedure if you have experience working with electronic devices. It is recommended to consult the owner's manual for your car or look up the manufacturer online, as these steps vary by vehicle model. Transponder chips Car keys with transponder chips require special reprogramming in order to function. Any hardware store can make you a new car key, but the real challenge lies in making it work with your car. A key that has been reprogrammed will need to match the exact identification number of your car otherwise it won't even start the engine. Transponder chips, used to protect cars from theft are a standard feature of modern cars. The chip is a microcircuit which transmits a radio-frequency signal when the ignition key is inserted. The car then scans for the signal and then starts the engine if it matches the original one that was programmed into the vehicle. The car will also shut down if a frequency is not valid. This makes it much more difficult for car thieves with no experience to hot wire a vehicle and start it. A circuit board that has an induction coil that connects the key to the chip. When the key is placed in the ignition it creates a magnetic field created around the transponder. This creates a signal which is taken up by the coil before being sent to the key's identification. The key's identification number is transmitted back to the car and the engine will start when the identification number is in line with. There are a few different ways to program a transponder keys, however, all require a special tool. You can purchase these tools online or from most automotive locksmiths. These tools are not inexpensive, but they are vital to program your car's chip. You may also use a reprogrammable key that was previously programmed for a different vehicle. In this scenario, make sure that the key hasn't been damaged or the transponder has not been altered in any way. To accomplish this, you'll need scanners or a computer with an USB port to scan the chip and determine its identity. The process of reprogramming a transponder key is quite easy, but it will require specialized software and a scan tool. If you're just beginning it is recommended to seek help from an auto locksmith. It is also recommended to avoid purchasing second-hand keys, since they're likely to be programmed and won't work with your car. EZ Installer In the past the time when car owners wanted to replace their keys were required to visit a dealer to have it digitally paired to the vehicle. This is because in order to make modern keys work, they need to be “paired”. This required expensive and complex equipment that was only available to dealers. The EZ Installer by Car Keys Express simplifies the process of pairing up modern keys with vehicles used by retailers and locksmiths. The EZ Installer, a basic “plug-and-play” OBD device, pairs new keys with vehicles without the need for complicated equipment or tokens to facilitate programming. It connects directly to the vehicle's standard OBD port and utilizing a mobile app to provide simple instructions. The EZ Installer is compatible with all modern vehicles with proximity keys or push-button start. Visit the compatibility guide on Tom's site to see if your vehicle is compatible. If the device is unable to program the remote or key purchased from Tom's into a vehicle that is compatible the full refund will be offered. Unlike traditional programming equipment, which costs retailers and key professionals hundreds of thousands of dollars in “token” fees per key, the EZ Installer Pro does not charge these fees. It is available for as long as the key professional or retailer needs. The EZ Installer also eliminates the requirement for expensive monthly service contracts and updates, meaning that it will save retailers money while offering customers the same high-quality service as OEM equipment. It also comes with a world-class warranty that includes all software and hardware for the duration of its life. You can also learn more about Car key programming tools are used by locksmiths, auto technicians and even owners of vehicles to create new keys for their automobiles. These tools can communicate with the immobilizer of the vehicle to program new keys and remote controls. These tools can be used to create duplicates and duplicate keys. These tools are an essential tool for anyone who owns a car. One of the most well-known car key programming tools is the Autel Maxisys MS906BT. The scanner for diagnostics of vehicles is compatible with the major brands and provides advanced OE features. It also includes an option for key programming and is able to backup current key information. It is also capable of resetting the immobilizer and clearing fault codes. Another important tool for reprogramming car keys is the OTOFIX Im1. This auto diagnostic scanner can read passwords from all major brands, and it comes with advanced features comparable to OE. It can even perform online calibration and customization as well as EEPROM reading. The tool is also equipped with the ability to bypass the PIN code of BMW and Mercedes. It is also able to read EEPROM, car MCU, and CAN EEPROM for most major models. The XToolUSA bidirectional scanner is another popular choice to reprogramme vehicles. This scanner can read codes and key information from most vehicles in just a few seconds which makes it a perfect tool for auto shops as well as locksmiths. It also has an active test function that helps identify the problem quickly and efficiently. There are many ways to reprogram your car. It is important to have the proper tools, and to know how they function. Incorrect programming may cause damage to the immobilizer on the vehicle and stop it from beginning. It is best to seek advice from a professional prior to attempting to reprogram a 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 reprogram your car key. However, this process takes longer and requires some knowledge of electronic circuits and soldering.