What Are the Different Types of Codes and How Do They Work? Modern car keys come with unique chips that are specific to each vehicle, unlike older keys. This prevents thieves from simply using the key to start the car. The keys are usually bought from a dealer or cloned by a locksmith. The manufacturer's process varies, but it involves turning the ignition key to the "on" position without activating the vehicle, and then removing it within a specified time period. Transponder Codes Like its name suggests, transponders send out an encoded signal with the four-digit code when it is being questioned by air traffic control. This signal is known as the SQUAWK code and it is the basis for identifying aircraft on radar screens. It can also be used to transmit specific messages to the air traffic control system in an emergency situation or to notify controllers of changes in weather conditions. Squawk codes are commonly employed to communicate with ATC in situations where pilots are unable to speak on the radio, and are essential for safe flying. Every aircraft has a transponder which responds to radar queries by displaying an identifier code. This allows ATC to identify an aircraft that is surrounded by screens. Transponders can be set to respond in a variety of ways when questioned. https://www.openlearning.com/u/bullockworkman-sj1v3s/blog/5PeopleYouOughtaKnowInTheProgrammingCarKeyIndustry transmits only the code while mode C transmits information about altitude. Mode S transponders provide more specific information, including callsigns and position. This can be helpful when flying in airspace with a lot of people. Most aircraft have a tiny beige box that is located under the pilot's seat. This is the transponder and it is designed to transmit an SQUAWK code when the airplane is activated by air traffic control. The transponder can be set to the ON position, ALT position, or SBY (standby) position. It's common to hear pilots being told by air traffic control to "squawk ident". This is a directive for pilots to press their transponder's IDENT button. The ident button causes the aircraft to blink on ATC's radar screens, allowing them to easily distinguish your aircraft's location on the screen. There are 63 discrete codes that can be assigned to aircraft, however there are certain reserved codes that restrict the use of a specific code in areas of high traffic or for emergencies. The discrete code block configuration is dependent on statistical analysis in order to minimize the chance of two aircraft with the same SQUAWK code being within the same sector. A transponder key is a special chip that contains the ID code. When a car's security light is illuminated, it means that the ID code in the key isn't compatible with the one in the car's computer. If this occurs, the vehicle's immobilizer will be turned off and the car won't start unless another key is used. To prevent this from happening, Pop-A-Lock recommends that customers purchase only new transponder keys or get a professional locksmith such as ours cut them for them. PIN codes A PIN code consists of a set of numbers (usually 4 or 6 digits) that are used to gain access to the device, service, or system. For example, a smart phone comes with a PIN code that the user sets when they purchase the device. They must enter it each time they wish to use it. PIN codes are used to safeguard ATM and POS transactions[1], secure access control (doors computers, cars),[2] and internet transactions. While a longer PIN code might appear to be more secure however, there are ways to guess or hack a PIN code that is as small as four digits. To ensure greater security it is recommended that PINs are at least 6 digits in length and include both letters and numbers. PIN codes are also required by some OEMs for key programmers who are aftermarket as a security measure to prevent them from being used by people who are not authorized to harvest data from the modules. VIN Numbers VIN numbers are used to identify vehicles and provide a wealth of information about them. VIN numbers are unique to every vehicle on earth with the exception of alien cars (or whatever). The 17 digits of a VIN code are a combination letters and numbers which can be decoded in order to reveal crucial information about your car or truck. Modern automobiles are mobile digital libraries that contain many details about their history and specifications. The key to unlocking this information is the VIN number. This permits you to determine everything from if your vehicle was subject to a recall, to how many owners it has. A VIN number is comprised of different sections, each containing specific information. The first digit, as an example is the type of vehicle it is, like an automobile for passengers, a pickup truck, or SUV. The second digit identifies the manufacturer. The third digit is the car's assembly division while the fourth through eighth digits describe the model type, restraint system type, body type, and engine and transmission codes. The ninth digit serves as a check digit to ensure that there is no fraud. It confirms that the VIN has not been altered. In North America, the 10th through 17th digits of the VIN code are called the Vehicle Identification Section or VIS. The tenth and 11th digits indicate the year of manufacture. The eleventh digit is used to indicate which assembly plant produced the vehicle. The tenth to seventeenth digits may also contain additional information such as features or options installed inside the vehicle. The VIN code is a serial number that has six digits that identify the vehicle or truck. The last digit is also the check number, and the remaining numbers are transliterated to numbers. The first digit is given an 8 and each subsequent number increases in value by one until the seventh digit is nine, which is then two. Then, the entire VIN will be converted back to its original form, by multiplying each weight by 11. If the result is equivalent to the check number, then the VIN is valid. Data Transfer Data transfer is the act of moving data from one location to another. This information can be transmitted in a variety of ways including digital signals to traditional paper documents. Data transfers can also occur between different computer programs, which are often called software packages. A data transfer that is effective requires careful planning, and a consideration of the limitations of each program. This may include the need for reformatting and it is essential to keep these concerns in mind when creating a data transfer plan. Key programmer is a device that allows a technician, or even someone with average skills, to program the transponder. Connecting the tool to the OBD II connector on the vehicle and then using it to retrieve programming data is a simple process. The tool will then recode your transponder in a way that matches the codes stored in the software. This allows you to use the key to start the car. During a data transfer any errors that occur will be stored in an error stack which can be retrieved later for troubleshooting purposes. You can set up the data transfer to restart loading processes automatically when they fail for a certain amount of time. This error storage could be useful if you want to monitor a particular application or program and avoid losing data records if they are not reloaded successfully. A data transfer process can copy data between persistent objects in SAP BW for example, a DataSource or the Persistent Staging Area (PSA). It can perform delta transfers, which will only transfer newer data to the destination. This is useful to archive data, or for sharing data between systems that aren't linked otherwise.