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Saab Key Programming Saab cars built since about 1994 feature an immobilizer mechanism based on coded keys. The addition of a key requires a new transponder, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool. This can be expensive. This is the reason why you should always have a spare key on hand. Transponder key The transponder can be described as a key equipped with an electronic chip. The chip transmits a signal when the key is put into the ignition. The car checks to see whether the signal is the same as the one on the key. If the signals match it will open and start. This is a great method to prevent auto theft and keep your car secure from thieves. Transponder keys can be an increasingly popular feature for automobiles, but they are not as secure as traditional metal keys. While the metal component of a traditional key could be cut and copied however, a transponder is secured by an electronic chip. The chip is equipped with a unique code programmed into the car's computers to identify it. The car will recognize the Saab keyfob, and allow it to turn on. The car will only recognize the key fob if it is equipped with an unmodified chip and has been programmed to match. In the absence of that, the car will reject the key and refuse to start. It is essential to ensure that you have a spare key for your Saab. This is particularly true if you reside in a rural area that is home to many car thieves. The good news is that you can obtain a replacement key for your Saab without needing to visit a dealership and pay the high prices they ask. In the majority of cases, you can have a brand new key made right on the spot for less than half the price of what you'd pay at dealerships. replacement saab car keys TheKeyLab for Wired Saab cars are usually delivered with two keys. If you have only one, you should purchase an additional key as fast as you can. This is because if the key is lost, the car will need an entirely new CIM and the locking cylinders replaced. This could be expensive, especially if you are purchasing a used vehicle. The next step is to wire the wires of the column and row to the microcontroller. This is the most difficult part of the project, and it will require lots of soldering. It's not a standard way to go about it, however, you should consider how you will route and solder each column and row. There are 22 microcontroller wires and pins to connect for this keyboard. It has 5 rows and 17 column. After the rows and column are joined It is now time to connect the key switches. Solder a diode on each key switch pin. This will shield the pins on the key switch from current and stop them from being shorted. A diode allows the flow of current to be in one direction, and has a an indicator in black that indicates the direction in which current will flow. A few of the tools that are available at auto parts stores — such as the Autel MaxiIM IM608 PRO and IM508 — could help shop customers or even DIY users in some cases program replacement keys and restore lost immobilizer data, Sanabria says. The tools plug into OBD ports and guide the user through each step and make the process more straightforward than replacing the car's computer. Jump-starting the battery A lot of people keep an assortment of tools in their trunks to jump-start their vehicle in the event of an emergency, but it might not be a good option for vehicles with newer technology. These vehicles are equipped with many computers and digital devices which communicate with each other. A voltage surge when a battery is connected to another battery could damage the components, rendering your car undriveable. Start the vehicle you are using and let it run for about two minutes before you connect the cables to the battery that is not working. Attach the red clip to the positive terminal of the battery that's good. (It will read “POS” or “+”.) Attach the other end of the black cable to a clean, unpainted metal surface underneath the car's hood—the engine block is an ideal choice. The black cable is not to be connected to the negative terminal of the dead battery. This could create sparks, which could ignite the gasoline that is in the engine compartment. Once the cables are connected, you need to start the vehicle and let it run for about five minutes. Then disconnect them in reverse. Remember that the battery on your Saab 9-3 is recharged when you drive, and it could take a while to get the battery back to normal. You should consider purchasing a second key fob, when you can. Replacing the original one that works requires the installation and programming of a brand new computer chip. Replacement Case Saab owners typically only have one car key, and if it is lost, they'll be charged. It's expensive to purchase keys and will require replacing the CIM or TWICE for older models. In the event of theft or any other catastrophe, it is best to have an extra key. But don't buy a used key, even if it's “new.” Keys that are claimed as new from sellers selling aftermarket keys won't work and are almost guaranteed to fail at the crucial moment. The majority of locksmiths won't be able to help in the event that you only have one working key, and the dealer will charge you for the cost of replacing the computer in your car to make a new replacement. We can reset and reprogram the computer's EEEPROM to get it ready to accept a new key without the need to replace the entire system. This can help you save a significant amount of money. It's much cheaper than wait until you lose the sole key.