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Saab Key Programming Saab cars made since 1994 have an immobilizer system that is based on codes for keys. A new transponder is required to allow the addition of an extra key, as well as special programming. This is usually handled 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 key is a piece of hardware 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 see if it matches the one in the key. If the signals are the same, the car will unlock itself and begin. This is a great method to stop auto theft and keep your vehicle secure from thieves. Transponder keys may be an extremely popular accessory for cars, but they're not as secure as traditional metal keys. The metal component of a traditional key can be easily cut and copied, however the transponder is protected by an electronic chip that protects it. The chip has a unique code embedded into the car's computer to identify it. When a Saab key fob is used, the car recognizes it and allows it to turn on. The car will only recognize the key fob when it has a chip that is unmodified and has been programmed to match. The car will not start when the key isn't programmed to match. It's essential to ensure that you have a spare key for your Saab. This is especially true when you live in a rural location that has numerous car thieves. The good news is that you can find a new key for your Saab without having to go to a dealership and pay the expensive prices that they charge. You can have a replacement key made on the spot at a fraction of what you would pay at the dealership. Key for Wired Saab cars usually come with two keys upon purchase. If you only have one, it is an ideal idea to purchase an extra key fob as soon as possible since if you lose it, the car will require the replacement of a CIM unit and the locking cylinders have to be replaced. This can be expensive especially for cars that are used. The next step is to wire the wires of the column and row to the microcontroller. This is the most difficult part of the project and will require a great deal of soldering. There's no standard way to do it, but you must consider how you will route and solder each column and row. For this keyboard, there are five rows and 17 columns, so there will be 22 microcontroller wires and pins that you need to connect. After the rows and column are joined after which it is time to connect the key switches. To do this, you need to place a diode on each pin on the key switch and then solder it. This will protect the pins on the key switch from current and keep them from being shorted. A diode permits current to only flow in only one direction. It is equipped with a visible indicator of a black line that shows which way current will flow. Some of the tools you can find at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 — can help customers in the shop, or even DIY users in some cases replace keys in the program and restore the lost immobilizer's data, Sanabria says. The tools connect to the OBD port and guide the customer through the process, making it more simple than replacing the computer inside the vehicle. Jumpstarting the battery Most people keep a set of jumper cables in their trunk for emergencies, but jumping a battery in newer vehicles may not be the best idea. These cars are equipped with a variety of digital and computer systems that communicate with each other. A surge in voltage when a battery is connected to another could cause damage to the components, rendering your car undriveable. Start the working vehicle and allow it to run for approximately two minutes before connecting the cables to the non-working one. Attach the red clip on the positive terminal of the good battery. (It will say “POS” or “+”.) Attach the other end to a clean, unpainted metal surface under the hood of the affected vehicle. The engine block is a great choice. Do not connect the black cable to the negative terminal on the dead battery as it could spark an ignition source that ignites gasoline in the engine bay. After the cables have been connected, you can start the vehicle and let it run for about five minutes. Then disconnect them in reverse. Be aware that the battery in your Saab 9-3 is charged when you drive, and it may take some time for the battery to come down. It is a good idea to invest in a spare key fob as soon as you can, because replacing the sole working one requires the installation of a new computer module and special programming to convince it that your lost keys are not trying to steal the car. Replacement case Many Saab owners only have one key for their car and if they lose it, they'll be charged. saab ignition key replacement is that it's expensive to buy a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It is recommended to have a second key in case of theft or any other catastrophe and the most effective way is to purchase an additional key as soon as you can. However, don't purchase a secondhand key even it's “new.” Keys that are claimed-new from sellers selling aftermarket keys won't perform and are almost certain to fail in the crucial moment. The majority of locksmiths won't be able to help with a single working key, and the dealer will charge you high fees to replace the computer in your car for a replacement. We can reset and reprogram the computer's EEEPROM to get it ready to accept a replacement key without having to replace the entire system. That can save you lots of money. It's more affordable than wait until you lose your only key.