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Saab Key Programming Saab cars manufactured since 1994 feature an immobilizer mechanism built 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 why it is important to always have a spare key on hand. Transponder key The transponder can be described as a key that has an electronic chip. The chip sends a signal when the key is put in the ignition. The car then checks the signal to determine whether it matches the one that is in the key. If the signals are in sync the car will then open and start. This is an excellent way to safeguard your car from theft. Transponder keys are a common feature in automobiles, however you must be aware that they're not as secure as traditional metal keys. While the metal parts of a traditional key may be cut and copied but a transponder key is protected by an electronic chip. The chip contains a unique code which is programmed into the car's computer in order to identify it. The car will recognize the Saab keyfob and allow it to be turned on. The car can only recognize the key fob if it has an unmodified chip and programmed to match. TheKeyLab will not start when the key isn't programmed to match. It is important to have an extra Saab key. This is particularly important for those who live in a rural location that has many car thieves. You can get a new key for your Saab by visiting the dealership, without having to pay their pricey costs. You can get the replacement key on the spot for less than half of the cost you would pay at dealerships. Key for Wired Saab cars usually come with two keys when new. If you have only one, you should get an additional key as quickly as you can. This is because, if it's lost the car will require an entirely new CIM and the locking cylinders replaced. This can be expensive especially for cars that are used. The next step is to connect the row and column wires to the microcontroller. This is the most challenging part of the project and will require a great amount of soldering. It's not a common way to do it, but you must plan how to route and solder each column and row. For this keyboard, there are five rows and 17 columns. So there will be 22 microcontroller wires and pins to connect. After the columns and rows are soldered, it's time to connect them to the key switches. Solder a diode to 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 has a black band visual indicator that indicates the direction in which current will flow. Some of the tools available at auto parts stores — such as the Autel MaxiIM IM608 PRO and IM508 — may help customers in the shop, or even DIY customers in certain cases programme replacement keys and recover lost immobilizer data Sanabria says. The tools plug into the OBD port and guide the customer through the procedure, making it simpler than replacing the computer inside the vehicle. Jump-starting the battery A lot of people keep an assortment of tools in their trunk to jump start a car in case of emergency, however it might not be a good idea for cars with more modern technology. These vehicles are equipped with many computers and digital devices which communicate with one another. A surge in voltage while a battery is hooked up to another one could damage these components, rendering your vehicle undriveable. Connect the cables to the vehicle that is operating. Allow it to run for two minutes. Attach the red clip on the positive terminal of the battery that is good. (It will read “POS” or “+”.) Attach the other end of the black cable to an unpainted, clean metal surface underneath the vehicle's hood. An engine block is a good option. Don't connect the black cable to the negative terminal of the dead battery, since it could spark an ignition that ignites the gasoline in the engine bay. Once the cables are connected the disabled vehicle and allow it to run for around five minutes before disconnecting the cables in reverse order. Remember that the battery on the Saab 9-3 will be charged when you drive, so it can take a while to get the battery back to its original level. You should invest in a second key fob, when you can. Replacing the one that works requires the installation and programming of a new computer chip. Replacement Case Saab owners typically only have one car key, and if that is lost, they'll be charged. The reason is that it's not inexpensive to add a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft or any other catastrophe, it is best to have a spare key. Even it's “new”, it won't work. The majority of locksmiths won't be able to help with a single working key and the dealer will charge for the cost of replacing the computer in your car to make a replacement. However, we can reset and reprogram the computer's EEPROM to prepare it to accept an alternative key without replacing the entire system. This could save you a significant amount of money. It's cheaper to do this than waiting until you loose the only key.