Saab Key Programming
Saab cars built from 1994 have an immobilizer system based on keys that are coded. A new transponder is required to allow the addition of an additional key, and special programming. This is usually done at the dealer using a Tech2 diagnostic tool.
The issue is that this could be very costly. You should always keep a spare set of keys on hand.
Transponder key
The transponder can be described as a key that is equipped with an electronic chip. The chip sends a signal when the key is put in the ignition. The car then examines the signal to determine if it matches the one in the key. If the signals are identical the car will be able to unlock itself and begin. This is a great method to deter car theft and keep your vehicle secure from thieves.
Transponder keys could be a popular addition to automobiles, but they are not as safe as traditional keys made of metal. The metal component of the traditional key is easily cut or copied, while a transponder has an electronic chip which protects it. The chip is a unique code that's programmed into a car's computers in order to identify it.
The car will recognize the Saab keyfob and allow it to be turned on. However, it will only do this if the key fob has an unmodified chip that has been programmed to match it. The car won't start in the event that the key has not been programmed to match.
It is important to have an extra Saab key. This is especially true for those who live in a rural region where there are many car thieves. The good part is that you can get a replacement key for your Saab without having to go to an auto dealership and pay the expensive prices that they charge. You can get a replacement key created on the spot at a fraction of the price you'd pay at dealerships.
Key for Wired
Saab cars typically come with two keys when they are new. If you only own one, you need to purchase an additional key as soon as you can. This is because if you lose it and the car needs a new CIM and the locking cylinders replaced. This could be expensive, especially if you are purchasing a used car.
The next step is connecting the wires of columns and row to your microcontroller. This is the most challenging part of the project and requires a significant deal of soldering. It's not a standard way to go about it, however, you should consider how you will route and connect each column and row. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller wires and pins to connect.
After the columns and rows are soldered, it's time to connect them to key switches. Solder a diode to each key switch pin. This will shield the pins from current, thus preventing them from being shorted. A diode permits current to only flow in only one direction. It has a visual indicator with a black band that indicates which direction current will flow.
Sanabria says that some of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO and IM508 will assist customers shopping or DIY users to program replacement keys and restore immobilizer information. The tools plug into the OBD port and guide the user through the process, making it easier than replacing the computer inside the vehicle.
Jumpstarting the battery
The majority of people have the set in their trunk to start a vehicle in an emergency, however it might not be a good idea for vehicles that are newer. These vehicles have many computers and digital devices that communicate with one another. A voltage spike when batteries are connected to another can fry the components and render your vehicle unusable.
Connect the cables to the vehicle that is operating. Let it run for two minutes. Attach the red clip to the positive terminal of the battery that's good. ( saab key thekeylab.co.uk will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface beneath the damaged car's hood--the engine block is a good choice. The black cable is not to be connected to the negative terminal of the dead battery. This could cause sparks, which could ignite the gasoline inside the engine compartment.
Once the cables are connected, start the car 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 will take some time for it to drop back down. You should consider purchasing another 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
Saab owners typically only have one car key, and if that is lost, they will be charged. It's expensive to buy an additional key and it requires replacing the CIM or TWICE for older models. In the event of theft or any other catastrophe, it is best to have a spare key. Even if the key is "new", it will not work.
Most locksmiths cannot help you in the event that 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 get it ready to accept a replacement key without replacing the entire system. This can save you a great deal of money. It's cheaper to do this than waiting until you lose the only key.