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Saab Key Programming Saab cars built since 1994 utilize an immobilizer system that is based on a set of keys. A new transponder is required to allow the addition of an extra key, as well as special programming. saab 9-3 key fob programming TheKeyLab is usually done by the dealer using a Tech2 diagnostic tool. It can be costly. This is why you should always keep a spare key in your possession. Transponder key The transponder keys are keys equipped with an electronic chip. It sends a signal to car when it is placed in the ignition. The car then analyzes the signal to determine whether it is identical to the one in the key. If the signals are in sync, the car will open and start. This is a fantastic way to protect your car from theft. Transponder keys are a common feature in vehicles, but it is important to know that they aren't as secure as classic keys made of metal. The metal component of the traditional key can easily be cut and copied, whereas transponders have an electronic chip that guards it. This chip has an individual code that is programmed into the car's computer to identify it. The car will recognize the Saab keyfob and allow it to turn on. However, it can only do this if the key fob has a non-modified chip that has been programmed to match. The car will not start when the key isn't programmed to match. It is essential to have an extra Saab key. This is especially important for those who live in a rural area where there are a lot of car thieves. The good thing is that you can find a replacement key to your Saab without needing to visit an auto dealer and pay the high costs they ask. In the majority of cases, you can have a new key created on-the-spot for less than half the cost of what you would pay at a dealer. Key for Wired Saab cars are usually supplied with two keys. If you only have one, it is a good idea to get an extra key fob as soon as possible since if you lose it the car will require an entirely new CIM unit, and the locking cylinders will need to be replaced. This could be expensive particularly if you are purchasing a used vehicle. The next step is to connect the wires of the column and row to the microcontroller. This is the most difficult part of the project and will require a good deal of soldering. There is no standard method to accomplish this, however it is essential to determine the routes you'll use to solder the columns and rows. For this keyboard, there are 5 rows and 17 columns, which means there will be 22 microcontroller wires and pins that you need to connect. After the columns and rows are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will shield the key switch pins from current and keep them from being shorted. A diode permits current to only flow in one direction. It comes with a visual indicator that is black, that indicates which direction current will flow. Sanabria states that a number of the tools sold in auto parts stores, like the Autel MaxiIM IMM608PRO and IM508 will assist customers who are shopping or DIY customers to program replacement keys and restore immobilizer data. The tools connect to OBD ports and guide the user through each step, making the process easier than replacing the vehicle's computer. Jump-starting the battery Most people keep a few sets of jumper cables in their trunk in case of emergency, but jumping a battery on newer vehicles may not be the most efficient option. They have numerous electronic devices and computers that communicate with each other. A voltage spike when the battery is connected to another could cause damage to 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 you connect the cables to the disabled one. Attach the red clip on the positive terminal of the battery that's good. (It will read “POS” or “+”.) Attach the other end to a clean and unpainted metal surface under the hood of the damaged vehicle. The engine block is an excellent option. Don't connect the black cable to the negative terminal on the dead battery because this could trigger a spark that ignites the gasoline in the engine bay. Once the cables are connected, you can start the vehicle and let it run about five minutes. Then disconnect them 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's a good idea to purchase a spare fob as soon as you can, since replacing the only functioning one requires the installation of a brand new computer module and special programming to convince it that your missing keys aren't in the process of trying to steal the car. Replacement Case Saab owners typically only have one car key, and if it is lost, they will be charged. It's expensive to buy an additional key and it requires replacing the CIM or TWICE for older models. In the event of theft, or any other catastrophe it is advisable to have a spare key. Even when the key is “new” it will not function. Most locksmiths can't help you when you only have one working key, and the dealer will charge you high fees to replace the computer in your car to create a replacement. We can, however, reset and re-program your computer's EEPROM in order to prepare it to accept the new key without having to replace the entire system. This can save you a significant amount of money. It's much cheaper instead of waiting until you lose the sole key.