Saab Key Programming
Saab cars manufactured since 1994 feature an immobilizer system based on key codes. A new transponder is required for the inclusion of an additional key, and special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.
It can be costly. You should always keep an extra set of keys in your possession.
Transponder key
The transponder is a key that is equipped with an electronic chip. This chip sends out a signal when the key is put in the ignition. The car then checks the signal to determine whether it matches the one in the key. If the signals match, the car will unlock itself and start. This is a great way to protect your car from theft.
Transponder keys are a popular feature in automobiles, but you should be aware they are not as secure as classic metal keys. The metal component of the traditional key can be easily cut or copied, while transponders are protected by an electronic chip that guards it. This chip contains an unique code that is embedded 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. The car will only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. The car will not start in the event that the key has not been programmed to match.
It is essential to ensure that you have a spare key for your Saab. This is especially true when you live in a rural area with numerous car thieves. The good news is that you can obtain a replacement key for your Saab without needing to visit an auto dealership and pay the hefty prices that they demand. In most instances, you can get a new key made on-the-spot for less than half the cost of what you would pay at an auto dealer.
Wired key
Saab cars are usually provided with two keys. If you only have one, it's an ideal idea to purchase an additional key fob as soon as possible, because if you lose it the car will require a new CIM unit and the locking cylinders have to be replaced. This can be costly particularly for used cars.
The next step is to wire the column and row wires to the microcontroller. This is the most difficult aspect of the project and it will require a lot of soldering. It's not a common way to go about it, but you need to determine how to route and connect each column and row. There are 22 microcontroller pins and wires to connect to this keyboard. It has 5 rows and 17 column.
Once the rows and columns are soldered, it's the time to connect them to the key switches. To do this, put a diode on each pin of the key switch and then solder it. This will shield the pins that are used for key switches from current and keep them from being shorted. A diode permits current to only flow in only one direction. It is equipped with a visible indicator that is black, that indicates which direction current will flow.
Some of the tools you can find at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 -- may assist customers at the shop or DIY users in some cases replace keys in the program and restore lost immobilizer data Sanabria says. The tools plug into the OBD port and guide the user through the procedure, making it simpler than replacing the computer inside the vehicle.
Jumpstarting the battery
A lot of people keep a set of jumper cables in their trunk in case of emergency however, jumping a battery in newer automobiles might not be the best option. These vehicles are equipped with digital and computer systems that communicate with one another. A surge of voltage when a battery is connected to another battery could damage the components, rendering your car undriveable.
Start the vehicle you are using and allow it to run for approximately two minutes before you connect the cables to the battery that is not working. Attach the red clip on the positive terminal of the battery that is good. (It will read "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface under the disabled vehicle's hood. An engine block is a good option. Don't connect the black cable to the negative terminal of the dead battery, since it could spark an ignition source that ignites gasoline in the engine bay.
After the cables have been connected, you should begin the car and let it run for approximately five minutes. Then disconnect them in reverse. Be aware that the battery of the Saab 9-3 will be charged when you drive, and it will take a while to get the battery down. It's a good idea to buy a spare key fob as soon as you can, because replacing the sole working one requires the installation of a brand new computer module and special programming to convince it that the lost keys aren't in the process of trying to steal the car.
Replacement Case
Many Saab owners have only one key for their vehicle and if they lose it, they'll be charged. The reason is that it's not inexpensive to purchase a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. In the event of theft, or other catastrophe, it is best to have a spare key. But don't buy a used key even if it's "new." Claimed- saab 93 key fob from a second-hand store will not work and are likely to fail in the crucial moment.
Most locksmiths can't help you in the event that you only have one working key, and the dealer will charge high prices to replace the computer in your car to create a replacement. However, we can reset and re-program the computer's EEPROM to prepare it to accept an alternative key without replacing the whole system. This could save you a lot of money. It's also cheaper than waiting until you lose your sole key.