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Saab Key Programming Saab cars manufactured since 1994 have an immobilizer feature based on coded keys. A new transponder is required for the addition of an additional key, as well as special programming. This is usually handled by the dealer using a Tech2 diagnostic tool. The problem is that this could be very expensive. It is always advisable to keep a spare set of keys on hand. Transponder key The transponder is a key that has an electronic chip. The chip transmits a signal when the key is put into the ignition. The car then examines the signal to see whether it matches the one that is in the key. If the signals match the car will then unlock and begin. This is a great way to safeguard your car from theft. Transponder keys could be an extremely popular accessory for cars, but they're not as secure as traditional keys made of metal. While the metal parts of a traditional key can be cut and copied however, a transponder is secured by an electronic chip. The chip is equipped with a unique code encoded into the car's system 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. If not, the car will reject the key and not start. It's crucial to ensure that you have an extra key for your Saab. This is especially true especially if you reside in a rural area where there are a lot of car burglars. The good part is that you can find a new key for your Saab without needing to visit an auto dealership and pay the expensive prices that they demand. In the majority of instances, you can get a new key made on-the-spot at a fraction of the cost of what you'd pay at dealerships. Wired key Saab cars are usually supplied with two keys. If you have only one, you should purchase an extra key as soon as you can. This is because if the key is lost, the car will need 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 challenging part of the project and will require a good amount of soldering. There is no standardized way to do this, but it's important to plan out the routes you'll use to solder the columns and rows. There are 22 microcontroller pins and wires to connect to this keyboard. It includes 5 rows and 17 columns. After the rows and column are joined then it's time to connect the key switches. To do this, put a diode across each key switch pin and solder it. This will protect the pins from current, thus preventing them from being shortened. A diode permits current to only flow in only one direction. It comes with a visual indicator, a black band, that shows which way current will flow. Sanabria says that a few of the tools available in auto parts stores, like the Autel MaxiIM IM608PRO and the IM508 are able to assist shoppers or DIY customers to program replacement keys and restore the immobilizer's data. The tools plug into OBD ports and help the customer through each step which makes the process much easier than replacing the car's computer. Jump starting the battery A majority of people keep a set in their trunk to jump-start their vehicle in an emergency, but it may not be the best idea for newer cars. These vehicles are equipped with digital and computer systems that communicate with each other. A surge in voltage when a battery is hooked up to another can fry these components and render your vehicle unable to drive. Connect the cables to the vehicle operating. Allow it to 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 of the black cable to an unpainted, clean metal surface beneath the damaged vehicle's hood. An engine block is an excellent choice. Don't connect the black cable to the negative terminal on the dead battery as this could trigger an ignition that ignites the gasoline in the engine bay. After the cables have been connected, you need to start the car and let it run for approximately five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 will be recharged while you drive. It will take some time for it to drop back down. It is recommended to purchase a second key fob, when you can. Replacing saab key fob repair www.g28carkeys.co.uk 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, they'll be charged. It's expensive to purchase keys and will require replacing the CIM or TWICE in the case of older models. It is best to have a backup key in the event of theft or other disaster the best solution is to purchase an extra key as early as you can. But don't buy a used key, even it's “new.” Keys that are claimed to be new from sellers selling aftermarket keys won't perform and are almost certain to fail at the crucial moment. Most locksmiths can't help you with a single working key, and the dealer will charge you high fees to replace the computer in your vehicle for a replacement. We can reset and reprogram the EEEPROM of your computer for it to accept a replacement key without having to replace the entire system. This could save you a significant amount of money. It's also less expensive than waiting until you lose the only key.