Using a Key Programmer
Modern key fobs do more than just act as keys. They communicate with the vehicle to turn it on and open the rear hatch, and more. To do this, they have to be programmed.
All car dealerships, auto manufacturers and auto locksmiths provide key programming. You can also do it yourself, if you have the proper equipment.
What is a key programmer?
A key programmer is used to recode a transponder on the fob or key for an automobile or truck, or any another vehicle. This process is required when a new fob or key must be programmed. This is usually required when a key or fob is lost or stolen. The device reprograms the chip in the key to match the digital signature of the vehicle and allows it to start.

Some vehicles are equipped with electronic immobilizers which prevent theft by stopping the engine from running without the correct key. The system checks to determine if the key or fob is digitally signed. If it does not then the system will shut down. This type of system has been proved to be effective in reducing automobile theft and has been made mandatory for a variety of models of cars by the manufacturer.
Most of these anti-theft systems are controlled by a module that is installed in the vehicle's engine or instrument cluster or ignition lock. In some instances the modules require special keys that have been programmed by professionals to work with the anti-theft system. This is typically performed by a dealer or locksmith with a computer.
It is possible to reprogramme certain keys and fobs by yourself but it isn't recommended until you're an experienced technician in the field. This is because the wrong programmed key can cause the vehicle to fail to start, run or even be destroyed. The majority of auto makers have a very specific procedure for programming these kinds of keys.
It is advised that if you intend to offer key programming as part of your service you get an LSID. This credential gives you access to a database of immobilizer and key codes along with details about the product. With this access, you are able to program and test new keys for customers quickly and easily. In addition, it also offers you assistance and documentation to help you with your day-to-day business operations.
How do I program an electronic key?
Key programmer devices can be used to modify the keys of your car. It will read information from the microchip on your key, and then write new information onto the chip. This will permit you to use your key and ensure that it is working properly. However the process of using a key programer can be somewhat complicated and requires some technical expertise to utilize. Before you attempt to program the key yourself, consult a professional locksmith or professional for guidance.
You can also purchase a key programer online and get it professionally programmed for less than the cost to have a dealership do the work for you. Be aware that not all key programming products will work with your specific vehicle. Before you purchase it is important to see if the product is compatible with your model.
Dealers typically need to reprogramme your key fob. This is because the key fob will have to be programmed with the specific information required by your vehicle's anti-theft system. Dealers will usually need the VIN number of your car to accomplish this, and they charge a fee. You could be able save this cost by giving the dealer a copy of your title, which you can obtain through the DMV in the majority of states.
For some cars, you can also try to reprogram your own key if you already have a working key that works with your vehicle. This is called master key method and it can be used to program a different key for certain vehicles. If you own a GM vehicle, for instance you can insert your key into the ignition until the security light goes out. Once this happens, you can remove your working key and then insert the new one to program it.
You can also purchase a specially designed EEPROM key programmer which is a costlier but more effective method of programming the car key. However, this is a much more advanced technology that requires dismantling the car and reading the information from the microchip inside the key. This type of programming is best suited to skilled automotive technicians with years of experience in electronic repair.
What are the best programming options for key programmers?
There are many options available when it comes to key programmers. Some key programmers are created to serve a single purpose, such as generating new keys. Others incorporate diagnostic and service features to make them a multi-purpose tool that can be used in a mechanic's shop. XTool is one such company that makes a range of key programming devices that have been well-received by their customers. Their products are simple to use and inexpensive with a focus on customer service.
One of the most adored models in their range is the XTOOL Inplus IP616, rated as the top model in its class. It has a simple, user-friendly interface and extremely clear instructions that assist users in the procedure of programming a new key. It has two methods of doing this: via vehicle or by typing. The first is easier and is suitable for beginners and home mechanics, whereas the second is more advanced and requires more experience.
car key programming is a great option. This device is an upgrade of the previous model, offering more power and stability. It features a powerful IMMO function and OE-level full system diagnostics, which makes it ideal for professionals in the field of automotive mechanics.
This model also has the capability to bypass immobilizers on earlier Renault vehicles. It comes with a variety of other functions that are useful, including reading mechanical key codes and dealer tool security codes. In addition, it can read CAN data on some Peugeot and Citroen vehicles and also has a long-lasting battery.
Despite its impressive features, the XTOOL Inplus IP616 remains relatively affordable. It is available for less than $500, which makes it an excellent option for any mechanic or DIY repairman. It comes with rechargeable batteries and a fast boot-up time and supports both OBD CAN protocols.
If you're looking for an even more sophisticated solution, look into the Autel XP400 Pro Auto Key Programmer. It's an advanced IMMO tool that comes with numerous additional options, including the ability to copy Freescale 9S12 MCUs. It also supports a larger variety of vehicle manufacturers than the previous model and has an enhanced CAN bus communication engine that can work with the latest ECUs.
What key programmer is best for me?
Ultimately, it comes to the type of work you perform and what you want from your key programmer. If you're an auto locksmith, you may require a key programmer that covers the broadest range of vehicles, such as the Smart Pro or Autel IM608 Pro. They're designed to do everything from reading/writing on the key to ECU programming and some OE level programming.
There are more affordable options for mechanics who don't require the whole equipment. One of these is the Xtool Pad3 tablet key programmer. car key programming was designed for key programming, but it also has advanced special functions, such as oil service light resets, battery resets, EPB resets, and throttle body resets.