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Using a Key Programmer Modern key fobs do more than just function as keys. They communicate with the vehicle to get it started, open the rear hatch and more. To accomplish this, they must be programmed. All car dealerships, auto manufacturers and auto locksmiths provide key programming. You can do it yourself using the right tools. What is a key programer? A key programmer is a device used to reprogram the transponder on a car or truck fob or key. This process is required when a new fob or key needs to be programmed. It's also common when an existing fob or key has been stolen or lost. The device basically reprograms the digital signature on the chip inside the key to match that of the vehicle, and allows it to start. Certain vehicles come with electronic immobilizers which prevent theft by stopping the engine from being started without the right key. This is accomplished by having the car's system check to make sure that the fob or key has the right digital signature. The system will shut down in the event that it doesn't. This kind of system is very effective in reducing automobile theft, and has been made compulsory for a variety of models of cars 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 they require keys that have been specifically programmed by an expert to work with the anti-theft system. This is typically done by a dealership or locksmith using computers. Although it is possible to reprogram some keys and fobs by yourself, it is not recommended unless you're a highly skilled technician in the field of automotive. This is because the wrong programmed key could cause the vehicle to fail to run, not start or even be destroyed. Most auto manufacturers have a particular procedure for programming these types of keys. It is recommended that if you plan to offer key programming as a part of your service offerings you acquire an LSID. This credential gives you access to the database of immobilizer and key codes along with product information. Having this access allows you to program and test new keys for customers quickly and easily. In addition, it also gives you important support and documentation that can aid you in your day-today business operations. How do I program an electronic key? Key programmer is a piece of equipment that allows you to modify the keys in your car. It will read information from the microchip in your key, and write new information to the chip. This will allow you use the key and ensure that it functions properly. However, the procedure of using a key programmer is a bit complicated and requires some technical knowledge to utilize. Before you attempt to program the key yourself, consult a professional locksmith or professional for guidance. You can also purchase a key programmer and have it professionally programmed at a cost that is lower than what you would have to pay an auto dealer to do the work for you. It is important to know that not all key programmers products will work with your car. Before making a purchase, you should check to see if the product is compatible with the model you have. Dealers will usually need to reprogramme your key fob. The key fob must be reprogrammed in order to include the information specific to the anti-theft system of your vehicle. Dealers typically require the VIN number of your vehicle to do this, and they charge a fee. You could be able save this cost by giving the dealer a copy your title that you can get through the DMV in all states. For certain vehicles you may also be able to program your own key if you have a second working key that works on your car. This is called master key method and it can be used to program a second key for certain vehicles. For instance, if have an GM vehicle, simply insert your working key into the ignition and turn it on until the security light turns off. Once that happens you can take out your working key, and then insert the new one to program it. You can also purchase a specialized EEPROM Key Programmer. This is a more costly but more efficient method of programming 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 type of programming is ideal for skilled automotive technicians with vast experience in electronic repair. What are the best options for programmers with a high level of expertise? There are a variety of options when it comes to key programmers. Some are solely focused only on the creation of new keys, while others offer a variety of diagnostic and service functions to make them a comprehensive tool for the mechanic's workshop. XTool is one such company, producing a selection of key programmer devices that have been well-received by their customers. Their products are simple to use and affordable with a focus on customer service. One of the most well-known models from their range is the XTOOL Inplus IP616, rated as one of the best in its class. It features a user-friendly interface with super clear instructions to guide users through the process of programming. It has two methods for doing this: via vehicle or via type. The first is easier and more suitable for beginners and home mechanics, whereas the second option is more sophisticated and requires more expertise. Autel MaxiIM IM608PRO Auto Key Programmer is a great option. It is an upgrade of the previous model, and offers greater power and stability. It features a powerful IMMO function and OE-level full system diagnostics that make it a great choice for professional automotive technicians. This model can also bypass immobilizers that were used in earlier Renault vehicles. It also comes with additional useful features, such as reading mechanical key codes, or dealer tool security codes. In addition, it can read CAN information on certain Peugeot and Citroen vehicles, and it has a long-lasting battery. Despite its impressive capabilities, the XTOOL Inplus IP616 is still relatively affordable. It's available for less than $500, making it an excellent choice for any mechanic or DIY rvinepairman. The device comes with rechargeable batteries, a quick boot-up time and supports both OBD CAN protocols. Autel XP400 PRO Auto Key Programmer is a more sophisticated option. This is a sophisticated IMMO tool that comes with several additional options, including the ability to duplicate Freescale 9S12 MCUs. It supports a wider range than the previous model, and also has an CAN bus communication system that can work with ECUs. Which like it is best for me? It all depends on the kind of work you perform and what you expect from your key programmer. If you're an auto locksmith, you may require an instrument that can program the widest range of vehicles, such as the Smart Pro or Autel IM608 Pro. They're made to do everything from reading and writing on the key to ECU programming and even some OE level programming. For mechanics who don't require the entire rig, there are simpler alternatives like the Xtool PAD3 tablet key programmer. It's designed for key programming, but also provides advanced special functions, including oil service light reset, battery reset, EPB reset and throttle body reset.