Saab Key Programming Saab cars that were built prior to 1994 have an immobilizer feature built on coded keys. Adding an extra key requires a new transponder, as well as special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool. It can be costly. This is the reason why you should always have a spare key at hand. Transponder key The transponder is a piece of key with an electronic chip. The chip sends a signal when the key is put into the ignition. The car then checks to see whether the signal is the same as the one on the key. If the signals match the car will then unlock and start. This is an excellent way to protect your vehicle from theft. Transponder keys are a common feature in vehicles, but it is important to know that they aren't as secure as traditional metal keys. https://www.thekeylab.co.uk/saab-car-keys/ of a traditional keys can be easily cut or copied, while transponders are protected by an electronic chip that safeguards it. The chip has a unique code that is programmed 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. However, it can only do this if the key fob is unmodified and has a chip that has been programmed to match the original. The car will not start in the event that the key has not been programmed to match. It is crucial to have a spare Saab key. This is particularly true when you live in a rural region that has numerous car thieves. You can get a new key for your Saab by visiting the dealership without paying high costs. You can have a replacement key created on the spot for less than half the price you'd spend at an auto dealer. Wired key Saab cars usually come with two keys when they are new. If you only have one, it is recommended to get an additional key as soon as you can. This is because if it's lost and the car is damaged, it will require a new CIM and the locking cylinders replaced. This can be expensive especially for cars that are used. The next step is to connect the column and row wires to the microcontroller. This is the most laborious aspect of the project and will require lots of soldering. There isn't a standard method to go about it, however, you should consider how you will route and solder each column and row. For this keyboard, there are five rows and 17 columns. This means 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. Solder a diode on each key switch pin. This will protect the pins that are used for key switches from current and prevent them from being shorted. A diode lets current only flow in only one direction. It features a visual indicator with a black band that indicates which direction current will flow. Some of the tools available at auto parts stores- such as the Autel MaxiIM IM608 PRO and IM508 -- may help customers in the shop, or even DIY customers in certain instances replace keys in the program and restore the lost immobilizer's data, Sanabria says. The tools connect to 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 A lot of people keep an assortment of tools in their trunks to jump start a car in an emergency, but it may not be the best idea for cars with more modern technology. These vehicles are equipped with electronic devices and computers that communicate with one another. A surge in voltage when the battery is connected to another battery could fry these components and leave your vehicle unable to drive. Start the vehicle you are using and let it run for about two minutes before connecting the cables to the non-working one. Attach the red clip on the positive terminal of the battery that is good. (It will read "POS" or "+".) Attach the other end to a clean unpainted metal surface underneath the hood of your disabled vehicle. The engine block is a good alternative. The black cable should not be connected to the negative terminal of the dead battery. This could cause sparks, which would ignite the gasoline inside the engine compartment. Once the cables are connected, you need to start the vehicle and let it run for approximately five minutes. Then disconnect the cables in reverse. The battery in your Saab 9-3 will recharge as you drive. It takes a while for it to recharge again. It is recommended to purchase an additional key fob as soon as you can. The replacement of the one that works requires the installation and programming of a brand new computer chip. Replacement Case Many Saab owners have only one key for their vehicle and if they lose it, key, it will cost them. It's expensive to add an additional key and it requires replacing the CIM or TWICE in the case of older models. It's recommended to have a second key in the event of theft or any other catastrophe the best solution is to purchase a second key as soon as you are able to. Even if 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 for the cost of replacing the computer in your vehicle to make a replacement. We can reset and reprogram the computer's EEEPROM to be able to accept a replacement key without replacing the entire system. This could save you a significant amount of money. It's also cheaper than waiting until you lose your only key.