Saab Key Programming Saab cars manufactured since 1994 come with an immobilizer system made up of coded keys. To add https://www.thekeylab.co.uk/saab-car-keys/ , you need a new transponder, as well as special programming. This is usually handled by the dealer using a Tech2 diagnostic tool. The problem is that it can be quite costly. It is always advisable to keep an extra set of keys at hand. Transponder key The transponder key comes equipped with an electronic chip. It transmits a signal to the car when it is inserted into the ignition. The car is able to check whether the signal matches the one on the key. If the signals are in sync the car will then open and start. This is a great method to deter auto theft and keep your vehicle safe from thieves. Transponder keys may be an increasingly popular feature for automobiles, but they are not as safe as traditional keys made of metal. The metal component of the traditional key is easily cut and copied, however transponders are protected by an electronic chip which protects it. This chip contains a unique code programmed into the car's computer to identify it. When a Saab key fob is used the car recognizes it and allows it to turn on. But, it's only able to do this if the key fob has an unmodified chip that has been programmed to match the original. In the absence of that, the car will reject the key and not start. It's crucial to ensure that you have an extra key for your Saab. This is particularly important for those who live in a rural area where there are a lot of car thieves. The good news is that you can obtain a replacement key for your Saab without having to go to an auto dealer and pay the high costs that they demand. You can get a replacement key created on the spot for less than half what you would pay at the dealership. Wired key Saab cars are typically delivered with two keys. If you only have one, you should purchase an additional key as fast as you can. This is because, if it's lost, the car will need a new CIM and the locking cylinders replaced. This could be expensive, especially if you are purchasing a used car. The next step is to connect the wires of the column and row to the microcontroller. This is the most challenging part of the project and will require a good deal of soldering. There isn't a standard way to do this, but it is important to think about the way you'll route and solder the columns and rows. There are 22 microcontroller wires as well as pins to connect to this keyboard. It has five rows and 17 column. Once the rows and columns are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will protect the pins that are used for key switches from current and keep them from being shorted. A diode lets current only flow in only one direction. It features a visual indicator, a black band, that indicates which direction current will flow. Some of the tools you can find at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- could assist customers at the shop or DIY customers in certain instances replace keys in the program and restore the lost immobilizer's data, Sanabria says. The tools plug into the OBD port and automatically guide the customer through the procedure, making it simpler than replacing the computer inside the vehicle. Jumpstarting the battery A majority of people keep an assortment of tools in their trunks to start a car in an emergency, but it might not be a good option for vehicles with newer technology. They have numerous digital and electronic devices that communicate with each other. A surge of voltage when the battery is connected to another one could cause damage to the parts and render your vehicle unusable. Start the vehicle you are using and let it run for about two minutes before connecting the cables to the disabled one. Attach the red clip on the positive terminal of the good battery. (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 would be an ideal choice. The black cable is not to be connected to the negative terminal of the dead battery. This could cause sparks that could ignite gasoline in the engine compartment. Once the cables are connected, start the disabled vehicle and let it run for approximately five minutes before disconnecting the cables in reverse order. Keep in mind that the battery on your Saab 9-3 is recharged during your drive, which means it may take some time for the battery to go back down again. It is recommended to purchase another key fob when you can. Replacing the one that works requires the installation and programming of a new computer chip. Replacement case Saab owners often only have one car key, and if that is lost, they will be charged. It's costly to add an additional key and it requires replacing the CIM or TWICE for older models. It's best to have a spare key in the event of theft or other disaster, and the best way is to purchase an extra key as early as you can. Don't purchase a used key even it's "new." Keys that are claimed to be new from a second-hand store will not perform and are almost certain to fail in the crucial moment. Most locksmiths can't help you if you have only one working key and the dealer will charge for the cost of replacing the computer in your vehicle for a replacement. We can, however, reset and reprogram the computer's EEPROM in order to prepare it to accept an alternative key without replacing the whole system. This could help you save a significant amount of money. It's also much less expensive than waiting until you lose the only key.