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Saab Key Programming Saab cars built since 1994 feature an immobilizer system that relies on a set of keys. A new transponder is required to allow the addition of an extra key, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool. The issue is that it can be very expensive. This is why you should always have a spare key at hand. Transponder key The transponder key comes with an electronic chip that sends a signal back to the car when it is put into the ignition. The car then analyzes the signal to determine whether it is the same as the one in the key. If the signals match, the car will unlock itself and start. This is a fantastic way to protect your vehicle from theft. Transponder keys are a popular addition to automobiles, but they are not as secure as traditional keys made of metal. The metal portion of a traditional keys can be easily cut and copied, however the transponder is protected by an electronic chip that guards it. This chip contains a unique code that is encoded into the car's system to identify it. The car will recognize the Saab keyfob and allow it to turn on. But, it's only able to do this if the fob has a non-modified chip that has been programmed to match the original. The car will not start if the key is not programmed to match. It is important to have a spare Saab key. This is especially true if you live in a rural area where there are many car thieves. You can get a new key for your Saab by visiting the dealership without paying high cost. You can get a replacement key made on the spot at a fraction of the price you'd pay at the dealership. Wired key Saab cars are usually delivered with two keys. If you only have one, it is recommended to get an additional key as soon as you can. This is because, if it's lost, the car will need a new CIM and the locking cylinders replaced. This can be expensive especially for used vehicles. The next step is to connect the wires of columns and row to your microcontroller. This is the most laborious part of the project and it will require lots of soldering. It's not a common way to go about it, however, you should think about how to route and solder each column and row. There are 22 microcontroller wires as well as pins to connect to this keyboard. It has 5 rows and 17 column. After the columns and rows are soldered together after which it is time to connect the key switches. Solder saab keys replacement on each key switch pin. This will shield the key switch pins from current and also prevent them from being shorted. A diode only allows the flow of current to be in one direction, and it also has a a black band visual indicator that indicates which way the current will flow. Sanabria states that a number of the tools sold in auto parts stores, such as the Autel MaxiIM IM608PRO and IM508 will assist customers who are shopping or DIY customers to program replacement keys and restore data from the immobilizer. The tools connect to OBD ports and guide the customer through each step which makes the process much easier than replacing the car's computer. Jump-starting the battery Most people keep a few sets of jumper cables in their trunk for emergency situations, but jumping a battery in newer vehicles might not be the best choice. These cars have a variety of digital and electronic devices that communicate with one another. A surge in voltage while the battery is connected to another can fry the components and render your car unable to drive. Start the working vehicle and let it run for about two minutes before connecting the cables to the disabled one. Attach the red clip to the positive terminal of the battery that's good. (It will read “POS” or “+”.) Attach the other end to a clean and unpainted metal surface beneath the hood of the disabled vehicle. The engine block is a good choice. Don't connect the black cable to the negative terminal of the dead battery, as this could trigger an ignition that ignites the gasoline in the engine bay. Once the cables are connected, you can start the vehicle and let it run for approximately five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 is recharged as you drive. It will take some time for it to return to its original state. You should invest in another key fob as soon as you can. Replacing the original one that works requires the installation and programming of a new computer chip. Replacement case Saab owners usually only have one car key, and if it is lost, they'll be charged. The reason for this is that it's expensive to add a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It is best to have a backup key in case of theft or any other catastrophe and the most effective way is to purchase a second key as soon as you are able to. However, don't purchase a secondhand key, even it's “new.” Keys that are claimed-new from sellers selling aftermarket keys won't perform and are almost certain to fail at the critical moment. The dealer will charge you top dollar for only one working key. We can reset and reprogram the EEEPROM of your computer to make it ready to accept a replacement key without having to replace the entire system. This could save you a significant amount of money. It's cheaper to do this instead of waiting until you lose your only key.