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Saab Key Programming Saab cars manufactured since 1994 utilize an immobilizer system that is based on coded keys. Adding an extra key requires a new transponder and special programming. This is usually done at the dealer, using a specially-designed Tech2 diagnostic tool. It can be costly. It is recommended to always have an extra set of keys available. Transponder key The transponder is a key that has an electronic chip. This chip sends a signal when the key is put in the ignition. The car then checks to see whether the signal matches with the one on the key. If the signals are identical the car will be able to unlock itself and start. This is a great method to stop car 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. While the metal parts of a traditional key could be cut and copied but a transponder key is protected by an electronic chip. The chip is equipped with 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. However, it can only do this if the key fob is equipped with a chip that is not modified that has been programmed to match. The car will not start in the event that the key has not been programmed to match. It is essential to have an extra Saab key. This is especially true for those who live in a rural area, where there are a lot of car burglars. The good news is that it's possible to get a replacement key for your Saab without having to go to an auto dealer and pay the high prices that they demand. In most instances, you can get a new key made on-the-spot for less than half the cost you'd pay at the dealer. Key for Wired Saab cars typically come with two keys when they're new. If you own only one, you should purchase an additional key as soon as you can. This is because if the key is lost, the car will need a new CIM and the locking cylinders replaced. This can be expensive especially for cars that are used. The next step is to connect the wires for the column and row to the microcontroller. This is the most difficult part of the project and requires a significant amount of soldering. There isn't a standard way to accomplish this, but it is important to think about the routes you'll use to solder the columns and rows. There are 22 microcontroller wires and pins to connect for this keyboard. It has 5 rows and 17 column. After the rows and column are soldered together, it is time to connect the key switches. To do this, put a diode on each pin of the key switch and then solder it. This will protect the key switch pins from current and stop them from being shorted. A diode lets current only flow in only one direction. It has a visual indicator with a black band that shows the direction in which the current will flow. Sanabria says that a few of the tools offered in auto parts stores, including the Autel MaxiIM IM608PRO and IM508, can help customers shopping or DIY customers to program replacement keys and restore immobilizer data. The tools plug into the OBD port and guide the user through the procedure, making it much easier than replacing the computer in the vehicle. Jump starting the battery Most people keep a set of jumper cables in their trunk to use in an emergency, but jumping a battery for newer automobiles might not be the best choice. These vehicles are equipped with a number of computers and digital devices that communicate with one another. A voltage surge when a battery is connected to another could cause damage to the components, rendering your car undriveable. Start the vehicle you are using and let it run for about two minutes before connecting the cables to the one that is disabled. Attach the red clip to the positive terminal on the battery that is good (it will have “POS” or “+” on it). Attach the other end to a clean and unpainted metal surface underneath the hood of the damaged car. The engine block is a great choice. The black cable should not be connected to the negative terminal of the dead battery. This could cause sparks, which could ignite the gasoline in the engine compartment. After the cables have been connected, you need to begin the car and allow it to run for around five minutes. Then, disconnect them in reverse. The battery in your Saab 9-3 will recharge while you drive. It will take some time for it to recharge again. You should purchase another key fob as soon as you can. Replacing the one that works requires the installation and programming of a brand new computer chip. Replacement Case Many Saab owners only have one key for their car and if they lose it, it's going to cost them. It's expensive to buy a key and requires replacing the CIM or TWICE for older models. It's best to have a second key in case of theft or other disaster the best solution is to buy an extra key as early as you can. But G28 Car Keys buy a used key, even if it's “new.” Keys that are claimed as new from a second-hand store will not work and are likely to fail at the critical moment. Most locksmiths cannot help you when you only have one working key, and the dealer will charge for the cost of replacing the computer in your vehicle to make a new replacement. We can reset and reprogram the computer's EEEPROM for it to accept a new key without having to replace the entire system. This can save you lots of money. It's less expensive than waiting until you lose the only key.