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Saab Key Programming Saab cars that were built prior to 1994 have an immobilizer feature made up of coded keys. A new transponder is required for inclusion of an additional key, and special programming. This is usually handled by the dealer using the Tech2 diagnostic tool. The problem is that this could be very costly. This is why it is important to always have a spare key on hand. Transponder key The transponder key is a piece of hardware with an electronic chip that transmits a signal to the car when it is inserted into ignition. The car then examines the signal to see whether it matches that of the key. If the signals are in sync the car will then unlock and start. This is a great method to protect your vehicle from theft. Transponder keys could be a popular addition to cars, but they are not as safe as traditional metal keys. While the metal component of a traditional key can be cut and copied but a transponder key is protected by an electronic chip. This chip contains an individual 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 key fob is unmodified and has a chip that has been programmed to match. Otherwise, the car will reject the key and refuse to start. It is vital to have a spare Saab key. saab fob key replacement G28CarKeys is especially true for those who live in a rural area that is home to numerous car thieves. You can obtain a replacement key for your Saab by going to the dealership and not paying their high cost. You can get a replacement key made on the spot for less than half of what you would pay at dealerships. Wired key Saab cars are usually delivered with two keys. If you have only one, you should get an extra key as soon as you can. This is because if you lose it the car will require a new CIM and the locking cylinders replaced. This can be costly especially if you're buying a second-hand car. The next step is to wire the column and row wires to the microcontroller. This is the most challenging part of the project and will require a good amount of soldering. There is no standard method to accomplish this, but it is crucial to plan the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns. So there will be 22 microcontroller wires and pins that you need to connect. After the columns and rows are soldered, it's the time to connect them to key switches. Solder a diode on each key switch pin. This will shield the pins on the key switch from current and prevent them from being shorted. A diode only allows the flow of current to be in one direction, and it comes with a an indicator in black that shows the direction in which current will flow. Some of the tools you can find at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 — can help shop customers or even DIY customers in certain cases program replacement keys and restore lost immobilizer data Sanabria says. The tools connect to the OBD port and automatically guide the customer through the process, making it easier than replacing the computer in the vehicle. Jumpstarting the battery Most people keep a set of jumper cables in their trunk in case of emergency however, jumping a battery for newer automobiles might not be the best idea. These cars are equipped with a variety of digital and computers that communicate with one another. A surge in voltage when the battery is connected another battery could damage the components making your car inoperable. Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal on the battery that is good (it will have “POS” or “+” on it). Attach the other end of the black cable to a clean, unpainted metal surface beneath the damaged car's hood. The engine block would be an excellent choice. The black cable is not to be connected to the negative terminal of the dead battery. This could trigger sparks that could ignite the gasoline that is in the engine compartment. Once the cables are connected, you can start the vehicle that is disabled and let it run for about five minutes before disconnecting them in reverse order. Remember that the battery on your Saab 9-3 is charged when you drive, and it can take a while to get the battery back to normal. You should invest in another key fob as soon as possible. Replacing the original one that works requires the installation and programming of a new computer chip. Replacement case Many Saab owners only have one key for their vehicle and if they lose that they'll be charged. The reason is that it's expensive to buy a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. It is recommended to have a second key in the event of theft or any other catastrophe the best solution is to purchase an additional key as early as you can. Even it's “new” it will not work. The majority of locksmiths won't be able to help when you only have one working key, and the dealer will charge high prices to replace the computer in your vehicle to create a replacement. We can reset and reprogram the EEEPROM of your computer for it to accept a new key without the need to replace the entire system. This could save you a lot of money. It's also cheaper than waiting until you lose your only key.