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Saab Key Programming Saab cars made since 1994 have an immobilizer feature that is based on codes for keys. The addition of a key requires a new transponder, as well as special programming. This is usually done at the dealer using a special Tech2 diagnostic tool. The problem is that it can be very expensive. This is why it is important to always have a spare key available. Transponder key The transponder key is a piece of hardware with an electronic chip that sends a signal to car when it is inserted into ignition. The car then analyzes the signal to determine whether it is identical to the one in the key. If the signals match the car will then unlock and start. This is a great method to stop car theft and keep your vehicle secure from thieves. Transponder keys are a popular feature in vehicles, but you should be aware they're not as secure as classic metal keys. While the metal component of a traditional key could be cut and copied however, a transponder is secured by an electronic chip. The chip has 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 be turned on. But, it's only able to do this if the 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 has not been programmed to match. It's crucial to ensure that you have a spare key for your Saab. This is particularly true especially if you live in a rural region that has numerous car thieves. You can get a new key for your Saab by visiting the dealership without paying pricey prices. In most cases, you can have a brand new key made right on the spot for less than half the price of what you would pay at the dealer. Wired key Saab cars are usually provided with two keys. If you have only one, you should get an additional key as fast as you can. This is because if it's lost and the car is damaged, it will require a new CIM and the locking cylinders replaced. This can be costly, especially for used cars. The next step is to wire the wires of the column and row to the microcontroller. This is the most laborious component of the project and it will require a lot of soldering. It's not a standard way to go about it, but you should think about how to route and connect each column and row. There are 22 microcontroller wires as well as pins to connect to this keyboard. It has 5 rows and 17 column. After the rows and column are soldered together It is now time to connect the key switches. To do this you must place a diode over each pin of the key switch and then solder it. This will shield the key switch pins from current and keep them from being shorted. A diode can only allow current to flow in one direction, and it comes with a a black band visual indicator that indicates the direction in which current will flow. Some of the tools you can find at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 — may aid shop customers or DIY customers in certain instances program replacement keys and restore lost immobilizer data, Sanabria says. The tools connect to the OBD port and automatically guide the user through the procedure, making it much easier than replacing the computer inside the vehicle. Jump starting the battery A lot of people keep a set of jumper cables in their trunk for emergencies, but jumping a battery on newer cars might not be the best idea. These cars have a variety of computers and digital devices that communicate with each other. A voltage surge while the battery is connected to another battery could fry these components and leave 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 say “POS” or “+”.) 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 a good choice. replacement saab car keys connect the black cable to the negative terminal of the dead battery as it could ignite 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 you disconnect them in reverse order. The battery in the Saab 9-3 will charge as you drive. It takes a while for it to drop back down. You should purchase another key fob as soon as you can. Replacing the original one that works requires the installation and programming of a new computer chip. Replacement Case Many Saab owners have only one key for their car and if they lose it, the cost will be. It's expensive to purchase an additional key and it requires replacing the CIM or TWICE in the case of older models. In the event of theft or other catastrophe it is recommended to have a spare key. But don't buy a used key, even the case that it's “new.” Keys that are claimed to be new purchased from third-party sellers won't work and are likely to fail at the critical moment. The dealer will charge you the most expensive dollar for only one working key. We can reset and reprogram the computer's EEEPROM in order to make it ready to accept a replacement key without replacing the entire system. This could help you save a significant amount of money. It's also cheaper than waiting until you lose your only key.