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Reprogramming Car Keys Transponder keys for car keys are thought to keep cars more secure and are more difficult for thieves to duplicate However a key may require reprogramming in the event that it is damaged or lost You can reprogram key fobs yourself but you must be aware of the correct process For the best results you must have the following items Keys Nearly all modern vehicles require some kind of transponder key or fob in order to operate ensuring security and protection against theft These keys are programmed by a locksmith or authorized dealer to function with the cars systems and specific model They are expensive to replace in the event of loss so it is recommended to keep spare keys in the car You can purchase replacement key fobs in online stores as well as many brickand mortar auto shops How can you know that the one you bought is genuine Are you able to tell whether it was programmed to work with another vehicle or if it can be programmed to work with your car To program a new car keys you must first ensure that your car is running Insert the key you wish to reprogram into the ignition without turning it There are just a few minutes before the system will reset all commands and then exits the programming mode Therefore it is important to move quickly and not be able to wait between steps Shut off the engine to stop this Change the key from on to off to test the system The door locks should cycle and youll hear a chime to indicate that the process has been successful Some newer vehicles use rolling keys to keep thieves from using stolen keys to open the vehicle This feature is still vulnerable to a technique known as replay attacks which allows thieves to record the signal of the key fob of the car and reproduce it later to unlock the car To stop this manufacturers added security features known as the CAN bus protocols to ward off hackers from gaining access to the vehicle Certain manufacturers also have special encryption on their key fobs which are not decoded by an easy program These types of cars will need to be programmed by a professional Therefore you should only attempt this process if you have experience working with electronics Consult your cars manual or go to the website of the manufacturer to learn how to program it The steps to follow will differ depending on the model of vehicle Transponder chips Car keys with transponder chips require a specific reprogramming to work Any hardware store can make you an entirely new car key but the real challenge is in making it work with your vehicle A key that has been reprogrammed will need to be compatible with the exact identification number of your car or it wont start the engine Transponder chips are a common feature of modern cars and are designed to prevent car theft The chip is a microcircuit that transmits a radio frequency signal when the key is placed in the ignition The car then scans for the signal and then starts the engine if it is in line with the original signal that was programmed into the vehicle The car will also shut down if the frequency is not valid This makes it harder for novice car thefts to hotwire a vehicle and then start it The chip and the key are connected via a circuit board that includes an induction coil When the key is placed in the ignition a magnetic field is generated around the transponder This produces a signal which is amplified by the coil which sends it to the keys identification number The keys ID number is sent back to the vehicle and if it matches the engine will start There are several methods to program a transponder keys but they all involve using an appropriate tool These tools can be purchased through the internet or from many automotive locksmiths These tools arent cheap but are essential for programming the chip in your car You may also use a reprogrammable transponder key that has been previously programmed for a different vehicle In this instance youll need sure that the key is not damaged or the transponder been altered in any way You can read the chip using a scanner or a computer that has a USB connector Reprogramming a transponder is a simple procedure but it requires specific software It also requires the use of a scanner It is best to consult an auto locksmith for help for those who are new to the process Avoid buying used keys as they might already be programmed and they wont work with your car EZ Installer In the past car owners who wanted to replace their keys were required to go to a dealer to have it digitally paired to the vehicle This is because modern keys require to be paired to a specific vehicle to function in a way that required expensive and complex equipment that only dealers could access The EZ Installer by Car Keys Express simplifies the process of pairing modern keys with vehicles for retailers and locksmiths The EZ Installer is a simple plug and play OBD device that pairs new keys with vehicles without the need for complicated equipment or programming tokens It connects directly to the standard OBD port on the vehicle and utilizes an app that can be downloaded on mobile devices to provide easy to follow instructions The EZ Installer works with all newer models including those with proximity keys or push button start To determine if itll be compatible with your specific vehicle look up the compatibility guidelines on Toms site If the device is unable to program a remote or key purchased from Toms into a vehicle compatible then a full refund is offered Unlike traditional programming equipment that costs retailers and key professionals thousands of dollars through typical perkey token costs the EZ Installer Pro doesnt charge these fees at all so it can be used as long as a retailer or key professional would like it to be The EZ Installer eliminates the need for expensive monthly service contracts and software updates This lets retailers save money while providing their customers the same high quality service as OEM equipment It also comes with a worldclass warranty that includes all software and hardware for life You can also learn more about Car key programming tools can be utilized by auto technicians locksmiths and even owners of vehicles to programme new keys for their vehicles These tools communicate with a vehicles immobilizer to create new keys and are remotely controlled These tools can be used to make duplicate keys and duplicate keys These tools are an essential tool for anyone who has a vehicle One of the most wellknown car key programming tools is the Autel Maxisys MS906BT This vehicle diagnostic scanner is compatible with all major brands and offers advanced OE features reprogram car key includes the ability to program keys and is able to backup current important information It also has the capability of resetting the immobilizer as well as clearing immobilizer fault codes Another essential tool for car key reprogramming is the OTOFIX IM1 This auto diagnostic scanner can read passwords from all major brands and has advanced features comparable to OE It can even perform online calibration customization and EEPROM reading The tool is also equipped with an option that allows it to bypass the PIN code of BMW and Mercedes It also has the ability to read EEPROMs car MCUs and CANEEPROMs of all major models The XToolUSA bidirectional scanner is another popular choice for reprogramming vehicles It can read codes and key information from most vehicles in a few seconds and is a fantastic tool for auto shops and locksmiths It also has an active test function that can help find the issue quickly and efficiently There are a variety of ways to reprogram a car it is essential to select the appropriate tools and to be aware of how to utilize them Incorrect programming may damage the vehicles immobilizer and stop it from beginning It is recommended to consult a professional before trying to reprogram a car key You can also purchase a kit that includes the key programmer a remote control key and transponder chip This will ensure that youre equipped with everything you need to reprogram your car key This method is more timeconsuming and requires a basic understanding of soldering and electronic devices