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Saab Key Programming Saab cars produced since 1994 feature an immobilizer system based on key codes. A new transponder is required for addition of an additional key, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool. It can be costly. This is the reason why you should always keep a spare key in your possession. Transponder key The transponder is a key equipped with an electronic chip. saab 93 key fob sends a signal when the key is placed in the ignition. The car then examines the signal to determine whether it matches the one that is in the key. If the signals match the car will then unlock itself and start. This is a great way to stop auto theft and keep your car secure from thieves. Transponder keys are a popular addition to cars, but they are not as secure as traditional metal keys. While the metal part of a traditional key could be cut and copied but a transponder key is protected by an electronic chip. 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. The car can only recognize the key fob if the device has a chip that is unmodified and programmed to match. The car will not start in the event that the key is not programmed to match. It's important to make sure that you have an extra key for your Saab. This is especially important for those who live in a rural area where there are a lot of car burglars. You can purchase a new key for your Saab by visiting the dealership without paying their high costs. You can have an original key made on the spot for less than half the price you'd spend at a dealership. Key for Wired Saab cars usually come with two keys when new. If you have only one, you should get an additional key as soon as you can. This is because if you lose it and the car is damaged, it will require an entirely 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 tedious part of the project, and it will require a lot of soldering. There's no standard way to do it, however, you should consider how you will connect and solder each column and row. There are 22 microcontroller pins and wires to connect for this keyboard. It has five rows and 17 columns. After the columns and rows are soldered, it's the time to connect them to the key switches. Solder a diode on each key switch pin. This will protect the key switch pins from current and prevent them from being shorted. A diode can only allow the current to flow in a single direction, and has a a black band visual indicator that indicates which way the current will flow. Some of the tools you can find at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 — could help shop customers or even DIY users in some cases programme replacement keys and recover lost immobilizer data, Sanabria says. The tools plug into the OBD port and automatically guide the user through the process, making it easier than replacing the computer in the vehicle. Jump-starting the battery The majority of people have a set of jumper cables in their trunks in case of emergency, but jumping a battery on newer cars might not be the best choice. These vehicles are equipped with a number of digital and computer systems that communicate with one another. A voltage spike when batteries are connected to another battery could damage the components making your car unusable. Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal of the battery that is good (it will have “POS” or “+” on it). Attach the other end to a clean and unpainted metal surface beneath the hood of the damaged car. The engine block is a good option. The black cable should not 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 can start the vehicle that is disabled and allow it to run for around five minutes before you disconnect them in reverse order. The battery in your Saab 9-3 will recharge while you drive. It may take a while it to return to its original state. It is a good idea to purchase a spare fob as soon as you can, since replacing the one that works requires the installation of a new computer module and a special program to convince it that the lost keys aren't attempting to steal the car. Replacement case Many Saab owners only have one key for their car and if they lose that it's going to cost them. It's expensive to purchase the key and also 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 most effective way is to purchase an additional key as soon as you can. However, don't purchase a secondhand key even it's “new.” Keys that are claimed as new from a second-hand store will not work and are almost guaranteed to fail at the critical moment. The dealer will charge the highest dollar if you only have one working key. We can reset and reprogram the computer's EEEPROM in order to make it ready to accept a new key without having to replace the entire system. This can save you a lot of money. It's more affordable instead of waiting until you loose the only key.