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Saab Key ProgrammingSaab cars produced from 1994 have an immobilizer system that relies on a set of keys. The addition of a key requires a new transponder, as well as special programming. This is usually done at the dealer using a special Tech2 diagnostic tool.The issue is that this could be very costly. This is why you should always have a spare key on hand.Transponder keyThe transponder can be described as a key equipped with an electronic chip. The chip transmits a signal when the key is put into the ignition. The car then analyzes the signal to determine whether it matches the one that is in the key. If the signals are in sync it will unlock and begin. This is a great method to avoid car theft and keep your vehicle secure from thieves.Transponder keys can be a popular addition to cars, but they are not as secure as traditional keys made of metal. The metal portion of a traditional key is easily copied and cut, but transponders have an electronic chip that guards it. The chip is a unique code which is programmed into the car’s computer in order to identify it.The car will recognize the Saab keyfob and allow it to turn on. The car can only recognize the key fob if it has an unmodified chip and programmed to match. The car will not start when the key isn’t programmed to match.It is crucial to have a spare Saab key. This is particularly important for those who live in a rural area, where there are many car thieves. You can obtain a replacement key for your Saab by going to the dealership, without having to pay their pricey prices. You can get an original key made on the spot for less than half of the cost you would spend at the dealership.Key for WiredSaab cars typically come with two keys when they’re new. If you only own one, it is recommended to get an additional key as fast as you can. This is because if it’s lost, the car will need an entirely new CIM and the locking cylinders replaced. This can be expensive especially for used vehicles.The next step is to connect 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. It’s not a common way to go about it, but you need to consider how you will route and solder each column and row. There are 22 microcontroller pins and wires to connect to this keyboard. It has five rows and 17 column.After the rows and column are soldered together It is now time to connect the key switches. Solder a diode to each key switch pin. This will protect the pins from current, preventing them from getting shorted. The diode allows current to only flow in one direction. It has a visual indicator that is black, that indicates which direction current will flow.Some of the tools offered at auto parts stores- such as the Autel MaxiIM IM608 PRO and IM508 — can help customers in the shop, or even DIY customers in certain cases program replacement keys and restore the lost immobilizer’s data, Sanabria says. The tools plug into OBD ports and guide the user through each step making the process simpler than replacing the car’s computer.Jump-starting the batteryThe majority of people have a set of jumper cables in their trunk for emergency situations, but jumping a battery on newer automobiles might not be the best option. These vehicles are equipped with numerous electronic devices and computers that communicate with each other. A surge in voltage when batteries are connected to another can fry the components making your car inoperable.Start the working vehicle and let it run for about 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 to a clean and unpainted metal surface underneath the hood of the affected car. The engine block is a good alternative. Don’t connect the black cable to the negative terminal of the dead battery, as this could cause an ignition spark that ignites the gasoline in the engine bay.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 them in reverse order. The battery in the Saab 9-3 will charge as you drive. It may take a while it to fall back. You should purchase another key fob when you can. The replacement of the one that works requires the installation and programming of a new computer chip.saab keys replacement have one key for their vehicle and if they lose it, key, it will cost them. It’s costly to add a key and requires replacing the CIM or TWICE for older models. It’s recommended to have a backup key in the event of theft or other disaster the best solution is to purchase a second key as soon as you can. Even even if the key is “new” it will not work.The dealer will charge the highest dollar if you only have one working key. We can reset and reprogram the computer’s EEEPROM to be able to accept a replacement key without replacing the entire system. That can save you a significant amount of money. It’s much cheaper than wait until you lose the only key.