Indisputable Proof You Need Saab Ignition Key Replacement
Saab Key Programming
Saab cars manufactured from 1994 have an immobilizer system based on key codes. To add an additional key, you need 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. It is always advisable to keep a spare set of keys available.

Transponder key
The transponder key is a key with an electronic chip that sends a signal back to the car when it is put into the ignition. The car checks to see whether the signal matches with the one on the key. If the signals match the car will then open and start. This is a great method to protect your car from theft.
Transponder keys may be a popular addition to cars, but they are not as secure as traditional metal keys. The metal component of a traditional keys can be easily cut and copied, whereas the transponder is protected by an electronic chip that protects it. The chip has a unique code that is inserted into a car's computers in order to identify it.
The car will recognize the Saab keyfob and allow it to turn on. However, it can only do this if your key fob is equipped with a chip that is not modified that has been programmed to match it. Otherwise, the car will reject the key and not start.
It is essential to have an extra Saab key. This is especially true especially if you reside in a rural area, where there are numerous car thieves. The good thing is that you can get a replacement key for your Saab without having to go to a dealership and pay the high prices that they charge. You can have a replacement key made on the spot at a fraction of the price you'd pay at a dealership.
Key for Wired
Saab cars typically come with two keys when they are new. If you only have one, it is recommended to purchase an extra key fob as soon as is possible as if you lose it, your car will require an entirely new CIM unit and the locking cylinders need to be replaced. This could be expensive especially if you're buying a used car.
The next step is connecting the wires for columns and row to your microcontroller. This is the most challenging part of the project and requires a significant deal of soldering. There isn't a standard way to accomplish this, however it is crucial to plan the way you'll route and solder the rows and columns. There are 22 microcontroller pins and wires to connect for this keyboard. It has five rows and 17 columns.
After the rows and column are joined It is now time to connect the key switches. To do this, place a diode across each pin on the key switch and solder it. This will shield the pins from current and prevent them from being cut off. The diode allows current to only flow in only one direction. It comes with a visual indicator, a black band, that shows which way current will flow.
Sanabria states that a number of the tools offered in auto parts stores, such as the Autel MaxiIM IM608PRO and the IM508 will assist customers who are shopping or DIY users to program replacement keys and restore immobilizer information. The tools connect to OBD ports and guide the customer through each step, making the process easier than replacing the vehicle's computer.
Jump-starting the battery
Most people keep a few sets of jumper cables in their trunks in case of emergency however, jumping a battery on modern vehicles may not be the best choice. 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 can fry these components and leave your vehicle undriveable.
Start the working vehicle and allow it to run for approximately 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 of the black cable to a clean, unpainted metal surface underneath the car's hood. The engine block is a good choice. Don't connect the black cable to the negative terminal on the dead battery, since it could ignite a spark that ignites the gasoline in the engine bay.
Once the cables are connected, start the vehicle that is disabled and let it run for approximately five minutes before disconnecting them in reverse order. Remember that the battery on the Saab 9-3 gets recharged when you drive, so it may take some time for the battery to go down. It's a good idea purchase a spare fob as soon as you can, since replacing the sole working one requires the installation of a brand new computer module and a special program to convince it that your missing keys are not trying to steal the car.
Replacement case
Many Saab owners only have one key for their car and if they lose that it's going to cost them. saab 93 key replacement for this is that it's not inexpensive 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 best option is to purchase an additional key as quickly as you can. Even even if the key is "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 you top dollar to replace the computer in your vehicle for a replacement. We can reset and reprogram the EEEPROM of your computer to get it ready to accept a replacement key without replacing the entire system. This could save you a great deal of money. It's cheaper to do this than waiting until you lose the only key.