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Reprogramming Car Keys Transponder keys are said to be more secure for vehicles and more difficult to copy by thieves. A key may have to be reprogrammed in the event of damage or lost. You can program key fobs yourself, but you must know the correct procedure. For the best results you must have the following items: Keys The majority of modern vehicles require a transponder keys to operate. This gives security and protection against theft. The keys are programmed by a locksmith or an authorized dealer to work with your car's system and specific model. It's costly to replace them if they're lost, so it's a good idea to have spares in your possession. You can also find replacement keys fobs in various online stores and in many brick-and-mortar auto shops. But how can you tell that the new one you purchased is genuine? Are you able to tell if the unit has been programmed to work with a different vehicle, or if it can be reprogrammed? If you are planning to program a new key first, you need to ensure that your car is operating. Insert the key you wish to reprogram into the ignition, but do not turn it. There are only automotive key programming before the system will reset all commands and leaves the programming mode. It is crucial to be quick and don't wait between each step. To prevent this from happening, shut off the engine. Switch the key from “on” to “off” to test the system. You should hear a sound indicating that the process was successful. The door locks will cycle. Certain vehicles of recent years use rolling keys to stop thieves from using stolen keys to start the car. This feature is still susceptible to a technique dubbed a replay attack. It allows thieves to record and then reproduce the signal from the key fob of the vehicle to open the car. To counter this, manufacturers have introduced an additional security feature known as the CAN bus protocol to stop attacks on hacking. Certain manufacturers have a unique encryption on their keys that cannot be decoded using a simple program. These types of cars will need to be programmed by a professional, so you should only try this if you have experience working with electronic devices. It's a good idea to consult the owner's manual of your vehicle or look up the manufacturer online, as the steps will differ depending on the vehicle type. Transponder chips Car keys that feature transponder chips require a special programming to function. While any hardware store can cut keys for you, the real challenge is making it function to work with the specific car you own. The key needs to be programmed to match the exact identification number on your vehicle, or else it won't be able to start. Transponder chips, used to protect cars from theft are a standard feature of modern cars. The chip is a tiny microcircuit which transmits a radio-frequency signal when the ignition key is inserted. The car then scans for the signal and starts the engine in case it matches the original one that was programmed into the vehicle. The vehicle is also programmed to shut down when it detects an incompatible frequency. This makes it more difficult for novice car thieves to wire a vehicle and then start it. The key and the chip are connected by the circuit board which includes an induction coil. When the key is placed in the ignition it creates a magnetic field generated around the transponder. This creates a signal which is received by the coil before being sent to the key identification number. The key's identification number is returned to the car, and the engine starts when the identification number is in line with. There are a few different methods to program a transponder keys, however, all require a special tool. These tools are available online or from most automotive locksmiths. These tools are not cheap but are essential for programming the chip in your car. You can also use an resettable key that was programmed for a different vehicle. In this instance, you'll need to make sure that the key has not been damaged or the transponder has been altered in any way. The chip can be read using a scanner, or a computer that has an USB connector. Reprogramming the transponder key is simple, however it requires an expertly designed software and scan tool. If you're new to the process you should seek the assistance of an auto locksmith. Don't buy used keys since they may already be programmed and won't be compatible with your vehicle. EZ Installer For decades, car owners who needed to replace their key fob had no choice than to visit an auto dealer to get their key paired to the vehicle. It is because to make modern keys function they have to be “paired”. This required expensive and complicated equipment that was only available to dealers. The EZ Installer from Car Keys Express solves this problem for locksmiths and retailers by easing the process of connecting modern keys to vehicles. The EZ Installer, a simple “plug-and-play” OBD device, pairs new keys with vehicles without the need for complicated equipment or tokens for programming. It connects directly to the standard OBD port on the vehicle, and runs an application that is mobile to provide easy to follow instructions. The EZ Installer works with most modern vehicles, including those that have proximity keys or push-button start. Go to the compatibility guide on Tom's site to see if your vehicle is compatible. If the device fails to program the remote or key purchased from Tom's into a vehicle that is compatible, a full refund is provided. Unlike traditional programming equipment that costs retailers and key professionals thousands of dollars through typical per-key “token” charges, the EZ Installer Pro doesn't charge these fees at all which means it can be used as long as a retailer or key professional wants it to be. The EZ Installer also eliminates the requirement for expensive monthly service contracts and updates, meaning that it can reduce costs for retailers while providing the same quality service as OEM equipment. It also offers a top warranty that covers hardware and software for the rest of your life. You can also find out more about Locksmiths, auto mechanics and even owners of vehicles can use car key programming tools to create new keys for vehicles. These tools communicate with the vehicle's immobilizer system to create new keys and remote controls. These tools can be used to make duplicate keys and to duplicate keys. These tools are a valuable tool for anyone who has a vehicle. Autel Maxisys MS906BT is one of the most sought-after tools to program car keys. This scanner for vehicle diagnostics provides advanced features OE-level and is compatible with most of the top brands. It also includes a key programming function and can backup current key data. It also has the capability of resetting the immobilizer and clearing immobilizer fault codes. Another tool that is essential to reprogramme car keys is the OTOFIX IMM1. This auto diagnostic scanner comes with advanced functions that are OE-level and can read passwords from all major brands. It also has the ability to perform online calibration, customization, and EEPROM reading. The tool is also equipped with a feature 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 of all major models. The Bidirectional scanner XToolUSA is a popular option for reprogramming vehicles. This tool can read key information and codes from most vehicles in a few seconds and is a fantastic tool for auto shops and locksmiths. It also features an active test function that can help identify the problem quickly and effectively. There are many ways to modify the car's programming. It is crucial to have the proper tools and to understand how they function. A mistake in programming could cause damage to the car's immobilizer system, and may prevent it from working. Before you attempt to reprogram your car key, it is best to consult a professional. Another option is to buy a kit that includes a key programmer, remote control key, as well as transponder chips. This will ensure that you are equipped with all the tools you require to reprogram your car key. This method takes longer and requires knowledge of soldering and electronic devices.