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Saab Key Programming Saab cars built since about 1994 have an immobilizer feature built on coded keys. The addition of a key requires a new transponder and special programming. This is usually handled by the dealer using the Tech2 diagnostic tool. The problem is that it can be very costly. This is why you should always have a spare key at hand. Transponder key The transponder can be described as a key equipped with an electronic chip. This chip sends out a signal when the key is placed into the ignition. The car then checks the signal to determine whether it is identical to the one in the key. If the signals are the same, the car will unlock itself and start. This is a fantastic way to guard your car against theft. Transponder keys are a favored feature in automobiles, but you should be aware that they aren't as secure as classic metal keys. While the metal component of a conventional key can be cut and copied however, a transponder is secured by an electronic chip. The chip has a unique code that's programmed into a car's computers in order to identify it. The car will recognize the Saab keyfob, and allow it to be turned on. The car will only recognize the key fob when it has a chip that is unmodified and has been programmed to match. Otherwise, the car will refuse to accept the key and will not start. It is important to have a spare Saab key. This is especially important if you live in a rural area, where there are a lot of car burglars. You can get a new key for your Saab by going to the dealership and not paying their high prices. You can have an original key made on the spot for less than half the price you'd pay at the dealership. Key for Wired Saab cars typically come with two keys when they're new. If you only own one, you need to purchase an additional key as fast as you can. This is because if the key is lost and the car needs an entirely new CIM and the locking cylinders replaced. This can be costly particularly if you are buying a used car. The next step is to connect the wires of columns and row to your microcontroller. This is the most difficult part of the project and will require a good amount of soldering. There's no standard way to accomplish this, however it is crucial to plan how you will route and solder the rows and columns. There are 22 microcontroller pins and wires to connect to this keyboard. It has 5 rows and 17 column. After the columns and rows are joined then it's time to connect the key switches. Solder a diode to each key switch pin. This will shield the key switch pins from current and stop them from being shorted. The diode allows current to only flow in only one direction. It comes with a visual indicator that is black, that shows the direction in which the current will flow. Sanabria states that a number of the tools available in auto parts stores, like the Autel MaxiIM IMM608PRO and IM508, can help customers shopping or DIY users to program replacement keys and restore immobilizer data. The tools plug into OBD ports and guide the user through each step which makes the process much easier than replacing the car's computer. Jump-starting the battery The majority of people have a set in their trunks to jump-start their car in case of emergency, but it may not be a good idea for newer cars. These vehicles are equipped with numerous electronic devices and computers that communicate with each other. A surge of voltage when a battery is connected to another battery could damage the components and render your vehicle unusable. Connect the cables to the vehicle working. Allow it to run for two minutes. Attach the red clip to the positive terminal of the battery that is good. (It will read “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 is a good option. The black cable should not be connected to the negative terminal of the dead battery. This could create sparks, which would ignite the gasoline in the engine compartment. Once the cables are connected, you can start the vehicle that has been disabled and let it run for approximately five minutes before you disconnect the cables in reverse order. Remember that the battery on your Saab 9-3 is recharged during your drive, which means it will take a while for the battery to come back down again. It is recommended to purchase an additional key fob as soon as possible. Replacing the only one that works requires the installation and programming of a brand new computer chip. Replacement case Many Saab owners have only one key for their car and if they lose that it's going to cost them. It's expensive to buy the key and also requires replacing the CIM or TWICE in the case of older models. It's best to have a spare key in case of theft or other disaster and the best option is to purchase a second key as quickly as you can. Don't purchase a used key, even it's “new.” saab key programming near me that are claimed-new from aftermarket sellers will not be effective and are almost guaranteed to fail in the most critical moment. The majority of locksmiths won't be able to help in the event that you only have one working key and the dealer will charge for the cost of replacing the computer in your car for a replacement. However, we can reset and reprogram the computer's EEPROM to prepare it to accept the new key without having to replace the whole system. This can save you a great deal of money. It's also a lot cheaper than waiting until you lose your one key.