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Using a Key Programmer Modern key fobs are more than simply function as keys. They communicate with the vehicle to turn it on, open the rear hatch, and more. To accomplish this, they must be programmed. Car dealerships, your car manufacturer, and auto locksmiths can provide key programming services. You can do it yourself using the right tools. What is a key-programmer? A key programmer is a tool used to change the transponder code in the key of a truck or car fob or key. This process is necessary when a new key or fob has to be programmed. This process is typically required when a key or fob is stolen or lost. The device basically reprograms the digital signature of the chip inside the key to match the signature of the vehicle and enable it to start. Some vehicles come with electronic immobilizers that protect against theft by preventing the engine from starting without the correct fob or key. The system checks to determine whether the fob or key is digitally signed. If it doesn't it will shut down. This type of system has been found to be effective in reducing the incidence of theft and is now required for many models of cars by the manufacturer. These systems can be controlled by a module installed in the vehicle's engine compartment or instrument panel or ignition lock. In some instances the modules require special keys that have been programmed by professionals to function with the anti-theft system. This is usually done by a dealership or locksmith through a computer. It is possible to reprogram certain fobs and keys yourself but it isn't recommended until you are an experienced technician for automotive. The reason is that a poorly programmed key could cause the vehicle to start, run or even be destroyed. The majority of automakers have a specific procedure to program keys. It is recommended that if you plan to offer key programming as a part of your service offerings you get an LSID. This credential grants you access to the database of immobilizer and key codes, as well as details about the product. This lets you quickly and easily program and test new key for customers. It also provides important documentation and support that will help you with your daily business operations. How do I program my key? A key programmer can be used to reprogram the keys of your car. It will read information from the microchip in the key, and write new information to the chip. This will allow you use the key, and make sure that it functions properly. However, the procedure of using a key programming device can be a bit difficult and requires some technical know-how to make use of. Before you attempt to do this yourself, you should consult a professional locksmith or expert for advice. You can also purchase a key programmer online and get it professionally programmed at less than you would pay to have a dealer do the work. However, keep in mind that not all key programmer models will be compatible with your vehicle. You must ensure the compatibility of the product with the model of your car before purchasing. Dealers typically need to reprogramme your key fob. This is because the key fob needs to be reprogrammed with specific information for your car's anti-theft system. car key programming require the VIN number of your vehicle to do this, and they charge a fee. You might be able to save this cost by giving the dealer a copy your title which is available through the DMV in most states. You can also reprogram your key on some cars when you already have a functioning key. This is referred to as a master key method and it is a method to program a different key on certain vehicles. For example, if you have a GM vehicle, you can insert your working key into the ignition and turn it on until the security light goes off. Once this happens you can take out the working key and insert the new one to program it. car key programming can also buy an specialized EEPROM key programmer, which is a costlier but more effective method to program car keys. However this is a more advanced technology that requires removing the car and reading the information from the microchip within the key. This type of programming should only be done by certified automotive technicians who have extensive experience in electronic repairs. What are the best choices for the most experienced programmers? There are a number of choices when it comes to key programmers. Some are single-purpose, focused only on the creation of new keys, whereas others offer a variety of diagnostic and service functions to make them an all-in-one tool for the mechanic's workshop. XTool is one of these manufacturers that makes a range of key programmer tools that are well-received from customers. Their products are simple to use and affordable with a focus on customer service. One of the most adored models from their range is the XTOOL Inplus IP616, rated as one of the best in its class. It offers an easy, user-friendly interface and extremely clear instructions that help users through the process of programming a brand new key. It has two methods of doing this: via vehicle or by typing. The former is more straightforward and more suitable for beginner mechanics and those who are at home, while the latter is more advanced and requires some understanding. Autel MaxiIM IMM608PRO Auto Key Programmer is another excellent alternative. It is an upgrade of the previous model, bringing greater power and stability. It has a powerful IMMO function and OE-level full system diagnostics, which makes it ideal for professional automotive technicians. This model also allows for bypassing immobilizers on early Renault vehicles. It also has other useful features, like reading mechanical key codes or dealer tool security codes. Additionally, it is able to read CAN data from certain Peugeot and Citroen vehicles and has a long-lasting battery. Despite its incredible capabilities, the XTOOL Inplus IP616 is still quite affordable. It is available for under $500 making it an excellent choice for any mechanic. It comes with a rechargeable battery, a quick boot-up time and supports both OBD CAN protocols. Autel XP400 PRO Auto Key Programmer is a more sophisticated option. It's an advanced IMMO tool with several additional features, including the ability to clone Freescale 9S12 MCUs. It also supports a greater variety of vehicle manufacturers than the previous model and has an upgraded CAN bus communication engine that is compatible with the most recent ECUs. Which key programmer is best for me? Ultimately, it comes down to the type of work you perform and what you require from your key programmer. If you're an auto locksmith, you might need an instrument that can program the widest variety of vehicles, such as the Smart Pro or Autel IM608 Pro. They can be used for everything from writing or reading on the key to ECU programming, and even some basic programming for OE. For mechanics that don't need the full-on rig, there are simpler alternatives such as the Xtool PAD3 tablet key programmer. It's designed to do key programming but also offers advanced special functions, including oil service light reset, EPB reset, battery reset, and throttle body reset.