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Saab Key Programming Saab cars produced since 1994 utilize an immobilizer system based on key codes. The addition of a key requires a new transponder, as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool. It can be costly. Always keep a spare set of keys at hand. Transponder key The transponder keys are keys equipped with an electronic chip. It sends a signal to the car when it is placed in the ignition. The car is able to check whether the signal matches with the one on the key. If the signals are in sync, the car will open and start. This is a great method to safeguard your car from theft. Transponder keys can be a popular addition to cars, but they are not as safe as traditional keys made of metal. The metal part of the traditional key is easily cut and copied, whereas the transponder is protected by an electronic chip which protects it. The chip is equipped with an individual code that is encoded into the car's system to identify it. saab replacement key will recognize the Saab keyfob and permit it to be turned on. The car can only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. The car won't start in the event that the key has not been programmed to match. It's important to make sure that you have a spare key for your Saab. This is especially important if you live in a rural region where there are a lot of car burglars. You can get a brand new key for your Saab by going to the dealership, without having to pay their pricey cost. You can get an original key made on the spot for less than half of the price you'd pay at the dealership. Wired key Saab cars usually come with two keys upon purchase. If you have only one, it's recommended to purchase an additional key fob as soon as possible, because if you lose it the car will require a new CIM unit and the locking cylinders have to be replaced. This can be expensive especially for cars that are used. The next step is connecting the row and columns wires to your microcontroller. This is the most tedious component of the project and it will require lots of soldering. There isn't a standard method to do it, but you must plan how to connect and solder each column and row. There are 22 microcontroller wires and pins to connect to this keyboard. It has 5 rows and 17 column. After the rows and column are joined then it's time to connect the key switches. Solder a diode on each key switch pin. This will protect the pins on the key switch from current and stop them from being shorted. A diode allows current to only flow in one direction. It features a visual indicator of a black line that shows which way current will flow. Some of the tools you can find at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 — can help shop customers or even DIY users in some cases program replacement keys and restore lost immobilizer data Sanabria says. The tools plug into OBD ports and help the customer through each step and make the process more straightforward than replacing the car's computer. Jump-starting the battery The majority of people have a set of jumper cables in their trunks to use in an emergency however, jumping a battery on modern vehicles might not be the most efficient option. These vehicles are equipped with numerous electronic devices and computers that communicate with one another. A voltage surge while a battery is hooked up to another one could damage these components and render your vehicle unable to drive. Start the vehicle that is working and allow it to run for approximately two minutes before connecting the cables to the one that is disabled. Attach the red clip to the positive terminal of the good battery (it will have “POS” or “+” on it). 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 result in sparks, which would ignite the gasoline inside 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 you disconnect the cables in reverse order. Be aware that the battery in the Saab 9-3 will be charged when you drive, so it could take a while for the battery to come back to normal. You should invest in an additional key fob as soon as you can. Replacing the original one that works requires the installation and programming of a brand new computer chip. Replacement case Saab owners often only have one car key, and if it is lost, they'll be charged. The reason is that it's expensive to replace a key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It is recommended to have a second key in the event of theft or any other catastrophe the best solution is to purchase an extra key as soon as you can. Don't purchase a used key even if it's “new.” Keys that are claimed to be new from aftermarket sellers will not work and are almost guaranteed to fail at the crucial moment. The dealer will charge you the highest dollar if you have only one working key. We can, however, reset and reprogram the computer's EEPROM in order to prepare it to accept a new key without replacing the entire system. This could save you a lot of money. It's much cheaper than wait until you lose the only key.