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Saab Key Programming

Saab cars that were built prior to 1994 have an immobilizer feature made up of coded keys. A new transponder is required for the addition of an extra key, as well as special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool.

The problem is that this could be extremely expensive. This is why you should always have a spare key on hand.

Transponder key

The transponder keys are keys with an electronic chip that sends a signal to car when it is inserted into the ignition. The car then checks the signal to determine whether it is identical to that of the key. If the signals are identical, the car will unlock itself and begin. This is a great way to stop auto theft and keep your vehicle safe from thieves.

Transponder keys are an extremely popular accessory for cars, but they are not as secure as traditional keys made of metal. The metal component of a traditional key can be easily cut and copied, whereas the transponder is protected by an electronic chip that safeguards it. This chip contains an unique code that is programmed into the car's computers to identify it.

The car will recognize the Saab fob key replacement keyfob, and allow it to be turned on. The car can only recognize the key fob if it has a chip that is unmodified and programmed to match. The car will not start when the key isn't programmed to match.

It is essential to have an extra Saab key. This is particularly important when you live in a rural region that has numerous car thieves. The good thing is that you can find a replacement key to your saab 93 replacement key without needing to visit an auto dealer and pay the expensive prices that they charge. You can have an original key made on the spot at a fraction of the cost you would spend at a dealership.

Wired key

Saab cars are usually supplied with two keys. If you have only one, it is best to acquire an additional key fob as soon as you can since if you lose it the car will require a new CIM unit and the locking cylinders have to be replaced. This can be expensive especially for cars that are used.

The next step is to connect the wires for columns and rows to your microcontroller. This is the most tedious component of the project and will require a lot of soldering. It's not a common way to go about it, but you must plan how to route and solder each column and row. There are 22 microcontroller wires and pins to connect for this keyboard. It includes 5 rows and 17 column.

After the columns and rows are soldered, it's the time to connect them to the key switches. To do this you must place a diode over each key switch pin and then solder it. This will shield the pins from current, and prevent them from getting shorted. The diode will only allow the flow of current to be in one direction, and it has the black band as a visual indicator that indicates which way the current will flow.

Sanabria states that some of the tools that are sold in auto parts stores, including the Autel MaxiIM IM608PRO and the IM508 can assist customers shopping or DIY customers to program replacement keys and restore data from the immobilizer. The tools connect to the OBD port and automatically guide the user through the process, making it easier than replacing the computer inside the vehicle.

Jump-starting the battery

A majority of people keep a set in their trunk to jump start a car in an emergency, but this might not be a good option for vehicles with newer technology. These vehicles are equipped with numerous digital and computers that communicate with one another. A surge in voltage while the battery is connected to another can fry these components and leave your vehicle undriveable.

Connect the cables to the vehicle that is working. Let it run for two minutes. Attach the red clip on the positive terminal of the good battery. (It will read "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood. The engine block is a good option. The black cable should not be connected to the negative terminal of the dead battery. This could create sparks, which would ignite gasoline in the engine compartment.

Once the cables are connected, you should start the car and let it run about five minutes. Then, disconnect them in reverse. The battery in the Saab 9-3 will charge while you drive. It will take a while for it to fall back. You should purchase an additional key fob as soon as possible. Replacing the only one that works requires the installation and programming of a new computer chip.

Replacement case

Many saab 9-3 key fob replacement owners only have one key for their car and if they lose it, the cost will be. The reason for this is that it's expensive to replace a key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. In the event of theft or any other calamity, it is best to have an extra key. Don't buy a secondhand key even the case that it's "new." Keys that are claimed to be new from aftermarket sellers will not work and are likely to fail at the critical moment.

The dealer will charge you the most expensive dollar for only one working key. However, we can reset and re-program the computer's EEPROM to accept the new key without having to replace the entire system. This can save you a significant amount of money. It's also less expensive than waiting until you lose the only key.