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Saab Key Programming Saab cars built since 1994 feature an immobilizer that relies on key codes. The addition of a key requires an entirely new transponder and programming. This is usually done by the dealer using the Tech2 diagnostic tool. This can be expensive. Always keep an extra set of keys available. Transponder key The transponder key comes equipped with an electronic chip. It sends a signal to car when it is inserted into ignition. The car is able to check whether the signal matches the one on the key. If both signals match the car will be able to unlock itself and begin. This is a fantastic way to protect your vehicle from theft. replacement key for saab 93 are a common feature in automobiles, however you must be aware that they aren't as secure as traditional metal keys. While the metal portion 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 programmed into the car's computers to identify it. The car will recognize the Saab keyfob, and allow it to be turned on. But, it's only able to do this if the key fob has a non-modified chip that has been programmed to match the original. The car will not start in the event that the key is not programmed to match. It is crucial to have an extra Saab key. 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 pricey cost. In most cases, you can have an original key made on the spot for less than half the cost you'd pay at a dealer. Wired key Saab cars are usually provided with two keys. If you have only one, it is recommended to get an additional key as fast as you can. This is because if the key is lost and the car is damaged, it will require an entirely new CIM and the locking cylinders replaced. This can be expensive, especially for used cars. The next step is connecting the wires of columns and row to your microcontroller. This is the most difficult component of the project and will require a lot of soldering. There is no standard method to accomplish this, but it is essential to determine the routes you'll use to solder the rows and columns. There are 22 microcontroller wires and pins to connect for this keyboard. It has 5 rows and 17 column. After the columns and rows are soldered together then it's time to connect the key switches. To do this, put a diode across each key switch pin and then solder it. This will shield the pins from current, preventing them from being shortened. A diode lets current only flow in only one direction. It is equipped with a visible indicator, a black band, 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 — could help customers in the shop, or even DIY customers in some cases program replacement keys and restore lost immobilizer data, Sanabria says. The tools plug into OBD ports and guide the customer through each step making the process simpler than replacing the vehicle's computer. Jump-starting the battery Most people keep a set in their trunk to jump-start their vehicle in the event of an emergency, but this might not be a good idea for vehicles that are newer. These cars are equipped with a variety of computers and digital devices which communicate with each other. A surge in voltage while the battery is connected to another one could damage these components, rendering your vehicle unable to drive. Start the vehicle that is working and allow it to run for around two minutes before you connect the cables to the non-working 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 disabled car's hood. The engine block would be an ideal choice. 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 let it run for about five minutes before disconnecting the cables in reverse order. The battery in your Saab 9-3 will recharge as you drive. It will take some time for it to drop back down. It's a good idea to purchase a spare fob as soon as you can, since replacing the only functioning one requires the installation of a brand new computer module and a special program to convince the system that your lost keys aren't trying to steal the car. Replacement Case Saab owners often only have one car key, and if that is lost, they'll be charged. It's expensive to add 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 any other catastrophe, and the best way is to purchase an additional key as early as you can. Even if the key is “new”, it won't work. The dealer will charge you the most expensive dollar if you only have one working key. We can reset and reprogram the computer's EEEPROM to get it ready to accept a replacement key without having to replace the entire system. This can save you a lot of money. It's much cheaper rather than wait until you lose your only key.