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Saab Key Programming

Saab cars built since about 1994 have an immobilizer feature based on coded keys. The addition of a key requires an entirely new transponder and programming. This is usually done at the dealer using a Tech2 diagnostic tool.

This can be expensive. Always keep an extra set of keys in your possession.

Transponder key

The transponder key is a piece of hardware with an electronic chip that sends a signal to car when it is inserted into ignition. The car is able to check if the signal matches the one on the key. If the signals are in sync, the car will unlock and begin. This is a great method to prevent auto theft and keep your vehicle secure from thieves.

Transponder keys can be a popular addition to cars, but they are not as secure as traditional metal keys. While the metal part of a traditional key could be cut and copied but a transponder key is protected by an electronic chip. The chip has a unique code which is programmed into a car's computers in order 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 when it has a chip that is unmodified and has been programmed to match. Otherwise, the car would reject the key and won't start.

It is vital to have a spare saab key fob replacement key. This is especially important for those who live in a rural location where there are many car thieves. You can get a brand new key for your saab 93 key replacement by visiting the dealership and not paying their high costs. In most instances, you can get an original key made on the spot for less than half the cost of what you'd pay at an auto dealer.

Wired key

saab key programming cars are usually provided with two keys. If you have only one, it's best to acquire an extra key fob as soon as is possible, because if you lose it, your car will require an entirely new CIM unit, and the locking cylinders will need to be replaced. This can be expensive, especially for used cars.

The next step is connecting the row and columns wires to your microcontroller. This is the most difficult part of the project and will require a good deal of soldering. There's no standard way to accomplish this, but it is important to think about the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns. So there will be 22 microcontroller wires and pins that you need to connect.

After the columns and rows are joined then it's time to connect the key switches. Solder a diode to each key switch pin. This will protect the pins from current and prevent them from being cut off. A diode lets current only flow in one direction. It has a visual indicator that is black, that indicates which direction current will flow.

Sanabria says that a few of the tools sold in auto parts stores, like the Autel MaxiIM IM608PRO and IM508, can help customers who are shopping or DIY customers to program replacement keys and restore immobilizer information. The tools plug into OBD ports and guide the user through each step and make the process more straightforward than replacing the vehicle's computer.

Jump starting the battery

The majority of people have a set in their trunks to jump-start a vehicle in the event of an emergency, but it might not be a good option for vehicles with newer technology. These vehicles are equipped with a number of digital and electronic devices that communicate with one another. A voltage spike when the battery is connected to another one could damage these components and render your car unable to drive.

Connect the cables to the vehicle working. Allow it to 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 would be a good option. The black cable should not be connected to the negative terminal of the dead battery. This could result in sparks, which would ignite the gasoline inside the engine compartment.

Once the cables are connected, you need to start the vehicle and let it run for approximately five minutes. Then disconnect the cables in reverse. The battery in the Saab 9-3 will charge while you drive. It takes a while for it to recharge again. You should invest in 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

Saab owners usually have only one car key, and if it is lost, they'll be charged. The reason is that it's not cheap to add a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. It is recommended to have a second key in the event of theft or any other catastrophe and the most effective way is to purchase an additional key as early as you can. However, don't purchase a secondhand key even if it's "new." Keys that are claimed-new from a second-hand store will not work and are almost guaranteed to fail at the crucial moment.

The dealer will charge the highest dollar if you only have one working key. We can reset and reprogram the EEEPROM of your computer to be able to accept a replacement saab 9-3 key key without the need to replace the entire system. This can save you a significant amount of money. It's also cheaper than waiting until you lose the only key.