Saab cars made since 1994 feature an immobilizer system that is based on key codes. A new transponder is required for the addition of a second key, as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.
The issue is that this can be very costly. It is recommended to always have an extra set of keys available.
Transponder key
The transponder is a piece of key equipped with an electronic chip. The chip transmits a signal when the key is put in the ignition. The car will check to see whether the signal is the same as the one on the key. If the signals are in sync, the car will unlock and start. This is a great way to prevent auto theft and keep your vehicle secure from thieves.
Transponder keys are a common feature in automobiles, however you must be aware that they're not as secure as traditional metal keys. While the metal portion of a traditional key could be cut and copied the transponder is protected by an electronic chip. The chip is equipped with a unique code programmed into the car's computer to identify it.
replacement saab key will recognize the Saab keyfob, and allow it to turn on. However, it will only do so if the key fob has a non-modified chip that has been programmed to match. The car won't start when the key isn't programmed to match.
It is essential to have a spare Saab key. This is particularly important for those who live in a rural region that has numerous car thieves. The good news is that it's possible to find a new key for your Saab without needing to visit a dealership and pay the expensive prices that they demand. You can have a replacement key created on the spot at a fraction of what you would spend at a dealership.
Key for Wired
Saab cars typically come with two keys when new. If you have only one, it's an ideal idea to purchase an extra key fob as soon as possible as if you lose it the car will require an entirely new CIM unit, and the locking cylinders need to be replaced. This could be expensive especially if you're purchasing a used car.
The next step is to connect the wires of the column and row to the microcontroller. This is the most challenging part of the project and requires a significant amount of soldering. It's not a standard way to go about it, but you need to consider how you will route and solder each column and row. There are 22 microcontroller wires and pins to connect to this keyboard. It has five rows and 17 column.
After the columns and rows are soldered, it's time to connect them to the key switches. To do this you must place a diode over each pin of the key switch and then solder it. This will shield the pins of the key switch from current and keep them from being shorted. The diode allows current to only flow in one direction. It is equipped with a visible indicator that is black, that shows the direction in which the current will flow.
Some of the tools available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- can aid shop customers or DIY customers in some cases create replacement keys and restore the lost immobilizer's data, Sanabria says. The tools plug into the OBD port and automatically guide the user through the procedure, making it much easier than replacing the computer in the vehicle.
Jump-starting the battery
The majority of people have a set of jumper cables in their trunk for emergency situations, but jumping a battery for newer automobiles might not be the most efficient option. These vehicles are equipped with numerous electronic devices and computers that communicate with each other. A surge in voltage while a battery is hooked up to another can fry the components and render your car unable to drive.
Connect the cables to the vehicle working. Let it run for two minutes. 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 beneath the damaged car's hood. The engine block is an excellent choice. The black cable is not to be connected to the negative terminal of the dead battery. This could cause sparks, which could ignite gasoline in the engine compartment.
Once the cables are connected, turn on the disabled vehicle and let it run for about five minutes before disconnecting the cables in reverse order. Remember that the battery on the Saab 9-3 gets recharged during your drive, which means it may take some time to get the battery down. You should invest in another key fob when 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 car and if they lose it, key, it will cost them. The reason for this is that it's not inexpensive to add a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, plus 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 the case that it's "new." Claimed-new keys from aftermarket sellers will not perform and are almost certain to fail at the critical moment.
Most locksmiths aren't able to help if you have only one working key and the dealer will charge high fees to replace the computer in your car to create a replacement. We can reset and reprogram the EEEPROM of your computer to be able to accept a new key without the need to replace the entire system. This can help you save a significant amount of money. It's less expensive than waiting until you loose the only key.
