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Using a Key Programmer Modern key fobs aren't just keys; they communicate with a vehicle to start it, open the rear hatch, and so on. To accomplish this they must be programmed to work in conjunction. Car dealerships, your vehicle manufacturer and auto locksmiths all offer key programming services. You can also do it yourself if you have the right tools. What is a key programer? A key programmer is used to reprogram the transponder in the fob or key for the vehicle truck or another vehicle. This is required when a new fob or key needs to be programmed. This is usually required when a key or fob is lost or stolen. The device basically reprograms the digital signature of the chip inside the key to match that of the vehicle and enable it to begin. Certain vehicles come with electronic immobilizers that protect against theft by preventing the engine from running without the correct key or fob. This is done by having the car's system check to make sure that the fob or key has the right digital signature. If it does not it will shut down. This type of system has been found to be effective in reducing automobile theft and was made mandatory for various models of vehicles by the manufacturer. Most anti-theft systems are controlled by a module installed in the vehicle's engine, instrument cluster, or ignition lock. In some instances the modules require specific keys that have been specifically designed by a professional to function with the anti-theft system. This is usually performed by a dealer or locksmith using computer. While it is possible to reprogram some fobs and keys by yourself but it is not advised unless you're a highly skilled technician in the field of automotive. This is because a wrongly programmed key could cause the vehicle to fail to run, not start or even be destroyed. The majority of auto manufacturers have a precise process to program these keys. It is recommended that if you plan to offer key programming as a part of your service offering, you obtain an LSID. This credential gives you access to an inventory of immobilizer and key codes and details about the product. Having this access allows you to program and test new keys for customers quickly and easily. It also provides crucial documentation and support to aid you in your everyday business operations. How do I program the key? A key programmer is an equipment that allows you to change the key codes in your car. It reads the data from the microchip inside your key and write new information to the chip. This will allow you to use the key, and ensure that it works correctly. However the procedure of using a key programmer can be a bit difficult and requires some technical knowledge to make use of. Therefore, before attempting to accomplish this by yourself, you should first consult a professional or a locksmith for guidance. You can also buy an online key programmer and get it professionally programmed at an affordable cost than the cost to have a dealership do the work for you. But, remember that not all key programmer models are compatible with your car and you must ensure the product's compatibility with the model of your car prior to purchasing. In most cases, you will need to have your key fob reprogrammed by an dealer. The key fob has to be reprogrammed to include the information specific to your car's anti-theft system. Dealers typically require the VIN number of the car to do this, and will charge fees. You could be able save money by giving the dealer a copy of your title which is available through the DMV in most states. You can also reprogram your key on some cars in the event that you already have a working key. This is called master key method, and can be used to program a second key for certain vehicles. For example, if you have a GM vehicle, insert your working key into the ignition and turn it on until the security light goes off. After the security light is out, you are able to remove the working key and insert the new one. You can also buy a specially designed EEPROM key programmer which is a more expensive, but more efficient way to program the car key. This is a more advanced technology, which requires that you disassemble the car and read the data from the chip in the key. This kind of programming is best suited to professionals in the field of automotive mechanics who have extensive experience in electronic repair. What are the top choices for a key programmer? There are a variety of options when it comes key programmers. Some are purely for use, focusing only on the creation of new keys, while others offer a variety of diagnostic and service functions to make them a comprehensive tool for mechanics' workshops. XTool is a manufacturer of key programming products that are well-received among customers is one of these companies. Their products are easy to use and affordable with a focus on customer service. One of their most popular models is the XTOOL Inplus IP616, which has been rated among the top in its category. It comes with a simple, user-friendly interface and extremely clear instructions that help users through the process of programming a new key. There are two ways to do this: via vehicle or by type. reprogram car key is more straightforward and is more suited to home mechanics and beginners, while the latter is more sophisticated and requires a little more understanding. Autel MaxiIM IM608PRO Auto Key Programmer is a great option. This is an upgrade from the previous model, offering more power and stability. It features an IMMO function that is powerful and OE-level full system diagnostics, which makes it ideal for professional automotive technicians. This model can also bypass immobilizers on early Renault vehicles. It also comes with other useful features, such as reading mechanical key codes, or dealer tool security codes. It can also read CAN data from certain Peugeot and Citroen automobiles, and comes with a long-lasting battery that can be recharged. Despite its impressive capabilities, the XTOOL Inplus IP616 is still quite affordable. It's available for less than $500 which makes it a good option for any mechanic. The device comes with a rechargeable battery as well as a quick boot-up time, and it supports both OBD and CAN protocols. Autel XP400 PRO Auto Key Programmer is a more advanced option. This is a sophisticated IMMO tool that comes with numerous additional features, including the ability to clone Freescale 9S12 MCUs. It also supports a wider variety of vehicle manufacturers than the previous model, and features an enhanced CAN bus communication engine that is compatible with the most recent ECUs. Which key programmer is best for me? It all boils to the type of work you do and what you require from your key programmer. If you're an auto locksmith you might need a key programmer that covers the widest range of vehicles, like the Smart Pro or Autel IM608 Pro. They can do everything from reading/writing on the key as well as ECU programming, and even OE-level programming. For mechanics who don't need the entire equipment, there are more basic alternatives such as the Xtool PAD3 tablet key programmer. It's designed to do key programming, but also provides advanced special functions, including oil service light reset, EPB reset, battery reset and throttle body reset.