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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 an entirely new transponder and programming. This is usually done by the dealer using a Tech2 diagnostic tool. This can be expensive. This is the reason why you should always have a spare key available. Transponder key The transponder key is a key equipped with an electronic chip. It sends a signal to car when it is inserted into ignition. The car checks to see if the signal matches the one on the key. If the signals are in sync, the car will unlock and begin. This is a fantastic way to safeguard your car from theft. Transponder keys are a popular feature in cars, but it is important to know that they're not as secure as traditional metal keys. While the metal component of a traditional key can be cut and copied but a transponder key is protected by an electronic chip. The chip has a unique code that is inserted into a car's computer order to identify it. When a Saab key fob is used, the car recognizes it and allows it to turn on. However, it will only do so if the key fob is unmodified and has a chip that has been programmed to match it. The car will not start in the event that the key has not been programmed to match. It's essential to ensure that you have an extra key for your Saab. This is especially important when you live in a rural area, where there are a lot of car thieves. The good news is that you can find a new key for your Saab without needing to visit a dealership and pay the high prices that they charge. In most cases, you can have a new key made on-the-spot at a fraction of the cost of what you would pay at a dealer. how to open a saab 93 without a key G28 come with two keys when they're new. If you have only one, it's recommended to purchase an additional key fob as soon as is possible, because if you lose it, the car will require an entirely new CIM unit and the locking cylinders need to be replaced. This can be costly particularly for used cars. 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 requires a significant amount of soldering. There is no standard method to accomplish this, but it is crucial to plan the way you'll route and solder the columns and rows. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller wires and pins to connect. Once the rows and columns are soldered, it's the time to connect them to key switches. Solder a diode to each key switch pin. This will protect the pins from current, thus preventing them from being shortened. A diode lets current only flow in one direction. It has a visual indicator, a black band, that shows which way current will flow. Some of the tools available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 — could help shop customers or even DIY customers in certain instances create replacement keys and restore lost immobilizer data Sanabria says. The tools plug into the OBD port and automatically guide the customer through the procedure, making it simpler than replacing the computer in the vehicle. 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 in newer vehicles might not be the best choice. These vehicles are equipped with many digital and computer systems that communicate with each other. A voltage surge while a battery is hooked up to another one could damage these components, rendering your car unable to drive. Start the working vehicle and let it run for about two minutes before you connect the cables to the one that is disabled. Attach the red clip to the positive terminal on the good battery (it will have “POS” or “+” on it). Attach the other end of the black cable to an unpainted, clean metal surface under the disabled car's hood. The engine block is an excellent choice. The black cable should not be connected to the negative terminal of the dead battery. This could create sparks, which could ignite the gasoline in the engine compartment. Once the cables are connected the vehicle that is 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 takes a while for it to fall back. It's a good idea invest in a spare key fob as soon as you can, because replacing the one that works requires the installation of a brand new computer module and a special program to convince it that your missing keys aren't trying to steal the car. Replacement Case Saab owners usually only have one car key, and if it is lost, they'll be charged. The reason for this is that it's expensive to buy a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It's best to have a spare key in the event of theft or other disaster and the most effective way is to buy an extra key as soon as you are able to. Even it's “new”, it will not work. The majority of locksmiths won't be able to help when you only have one working key, and the dealer will charge for the cost of replacing the computer in your vehicle for a replacement. We can, however, reset and re-program your computer's EEPROM to prepare it to accept a new key without replacing the whole system. This could save you a lot of money. It's also less expensive than waiting until you lose your only key.