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Using a Key Programmer
Modern key fobs are more than just keys; they communicate with vehicles to start it or open the rear hatch, and much more. To accomplish this they must be programmed to work with each other.
All automotive dealerships, auto manufacturers and auto locksmiths provide key programming. But you can also do it yourself, if you have the right tools.
What is a key programmer?
A key programmer is used to recode the transponder on a key or fob for the vehicle, truck or other vehicle. This is required when a new key or fob has to be programmed. This process is typically required when a fob or key is stolen or lost. The device reprograms the chip in the key to match the digital signature of the vehicle, allowing it to start.
Certain vehicles come with electronic immobilizers that protect against theft by preventing the engine from starting without the correct key or fob. The system checks whether the fob or key is digitally signed. The system will shut off when it isn't. This type of system has been found to be effective in reducing the incidence of theft and is now required for various models of vehicles by the manufacturer.
These anti-theft systems can be controlled by a module installed in the vehicle's engine, instrument panel or ignition lock. In some cases, these modules require special keys that are specifically programmed by an expert to function with the anti-theft system. This is typically performed by a dealer or locksmith who uses computer.
Although it is possible to reprogramme certain fobs and keys on your own, it is not recommended unless you're a highly experienced automotive technician. This is because the wrong programmed key can cause the vehicle to fail to start, run, or even be completely destroyed. The majority of auto manufacturers have a very precise procedure to program keys.

It is recommended that if you want to provide key programming as part of your service you get an LSID. This credential grants you access to a database of immobilizer and key codes and details about the product. This access lets you quickly and easily program and test new key for customers. In addition, it also offers you assistance and documentation to help you with your day-to-day business operations.
How do I program a key?
A key programmer can be used to reprogram the keys in your car. It reads the information from the microchip in your key and then write new information to the chip. This will permit you to use your key and will ensure that it functions effectively. However the process of using a key programming device can be a bit difficult and requires some technical knowledge to use. So, before you try to complete this task on your own you should first talk to a professional or a locksmith for directions.
car remote key programming can also buy an online key programmer and get it professionally programmed at a much lower price than what you would pay to have a dealer do the work for you. Be aware that not all key programmer models will work with your vehicle and you must confirm the compatibility of the product with your model of car before making a purchase.
Dealers will usually need to reprogram your key fob. The key fob has to be reprogrammed in order to include the specific information for your car's anti theft system. Dealers usually require the VIN number of the car to do this, and they charge an amount. You may be able to save this cost by giving the dealer a copy your title, which you can obtain through the DMV in all states.
For certain cars you can also try to reprogram your key if you have a second working key that works on your car. This method is called the master key method and it can be applied to some vehicles to program the secondary key. For instance, if you are driving an GM vehicle, insert your working key into the ignition and turn it on until the security light goes off. Once the security light goes out, you can take off the working key and insert the new one.
You can also purchase a specially designed EEPROM key programmer that is costlier but more effective way to program the car key. This is a more advanced technology, which requires that you take apart the car and read the data from the chip inside the key. This type of programming should only be carried out by trained automotive technicians who have extensive experience in electronic repairs.
What are the best choices for a key programmer?
There are a myriad of options in the field of key programmers. Some are purely for use, focusing solely on generating new keys, whereas others include a wide range of diagnostic and service functions, making them an all-in-one tool for mechanics' workshops. XTool is a manufacturer of key programming products which are highly rated by customers is among these manufacturers. Their products are affordable and have a focus on the customer, making them simple to use.
One of the most well-known models in their range is the XTOOL Inplus IP616, rated as the top model in its class. It has an intuitive user interface and super clear instructions to guide users through the process of programming. There are two ways to do this: by vehicle or by typing. The first method is easier and is more suitable for novices and home mechanics, while the second is more advanced and requires more expertise.
Another option to consider is the Autel MaxiIM IM608 Pro Auto Key Programmer. This device is an upgrade from the previous model, bringing increased power and stability. It comes with a powerful IMMO function and fully-functional diagnostics for the OE level that make it a great choice for automotive technicians who are professionals.
This model also has the capability to bypass immobilizers on earlier Renault vehicles. It comes with a variety of other useful functions, such as reading mechanical key codes and dealer tool security codes. It can also read CAN data from some Peugeot and Citroen cars, and has a long-lasting, rechargeable battery.
Despite its incredible capabilities, the XTOOL Inplus IP616 is still relatively affordable. It is available for less than $500, which makes it a fantastic choice for any DIY or mechanic rvinepairman. It comes with a rechargeable battery and a fast boot-up time, and it can be used with both OBD and CAN protocols.
If you're looking for an even more advanced option, you should consider the Autel XP400 Pro Auto Key Programmer. It's an advanced IMMO tool that comes with numerous additional features, including the ability to copy Freescale 9S12 MCUs. It supports a wider range than the previous model, and also has a CAN bus communications system that works with ECUs.
Which key programmer is the best for me?
It all depends on the kind of work you perform and what you need 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 designed to do everything from read/write on the key to ECU programming and some OE level programming.
For mechanics that don't need the full apparatus, there are less expensive alternatives such as the Xtool PAD3 tablet key programmer. It's designed for key programming, but it also has advanced functions like oil service light reset, battery reset, EPB reset and throttle body reset.