Saab Key Programming Saab cars that were built prior to 1994 have an immobilizer feature that is based on codes for keys. In order to add a second key, it requires a new transponder, as well as special programming. This is usually done by the dealer, using a specially-designed Tech2 diagnostic tool. This can be expensive. It is always advisable to keep a spare set of keys in your possession. Transponder key The transponder is a type of key with an electronic chip. The chip transmits a signal when the key is inserted in the ignition. lost saab keys examines the signal to determine whether it is the same as that of the key. If both signals match the car will then unlock itself and start. This is a great way to guard your car against theft. Transponder keys are a favored feature in automobiles, but you should be aware they aren't as secure as traditional keys made of metal. The metal portion of a traditional key can be easily cut and copied, whereas transponders are protected by an electronic chip that protects it. The chip is equipped with an individual code that is programmed into the car's computer to identify it. The car will recognize the Saab keyfob and permit it to turn on. The car will only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. In the absence of that, the car will reject the key and not start. It is essential to ensure that you have an extra key for your Saab. This is especially true especially if you live in a rural region that has numerous car thieves. You can get a brand new key for your Saab by going to the dealership, without having to pay their pricey prices. In most instances, you can get a new key made on-the-spot at a fraction of the cost of what you would pay at an auto dealer. Key for Wired Saab cars typically come with two keys when new. If you only have one, it is best to acquire an extra key fob as quickly as you can as if you lose it the car will require the replacement of a CIM unit and the locking cylinders need to be replaced. This can be costly particularly for used cars. The next step is connecting the wires for columns and rows to your microcontroller. This is the most laborious part of the project, and will require a lot of soldering. It's not a common way to do it, however, you should plan how to route and solder each column and row. For this keyboard, there are 5 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 time to connect them to the key switches. Solder a diode on each key switch pin. This will shield the pins that are used for key switches from current and also prevent them from being shorted. A diode permits current to only flow in one direction. It is equipped with a visible indicator of a black line that indicates the direction in which current will flow. Sanabria says that a few of the tools available in auto parts stores, including the Autel MaxiIM IM608PRO or IM508 will assist shoppers or DIY users to program replacement keys and restore immobilizer information. The tools connect to the OBD port and automatically guide the user through the process, making it easier than replacing the computer in the vehicle. Jump-starting the battery Most people keep an item in their trunks to jump-start a vehicle in an emergency, but this might not be the best idea for vehicles that are newer. These cars are equipped with a variety of electronic devices and computers that communicate with one another. A voltage surge while the battery is connected to another could cause damage to these components, rendering your vehicle undriveable. 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 of the battery that is good (it will have POS or + on it). Attach the other end of the black cable to a clean, unpainted metal surface under the disabled car's hood--the engine block is a good choice. The black cable should not be connected to the negative terminal of the dead battery. This could trigger a spark, which would ignite the gasoline inside the engine compartment. Once the cables are connected, start the car and let it run for about 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 return to its original state. You should invest in a second key fob, as soon as you can. Replacing the original 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 car and if they lose it, it's going to cost them. It's costly to add a key and requires replacing the CIM or TWICE in the case of older models. In the event of theft or other catastrophe it is recommended to have a spare key. Even it's new, it won't work. Most locksmiths cannot help you in the event that you only have one working key and the dealer will charge you for the cost of replacing the computer in your vehicle to make a new replacement. We can reset and reprogram the EEEPROM of your computer to make it ready to accept a new key without having to replace the entire system. This could save you a significant amount of money. It's cheaper to do this instead of waiting until you lose the only key.
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