Notes

10 Misconceptions That Your Boss May Have Concerning Saab Ignition Key Replacement
Saab Key Programming

Saab cars built since about 1994 come with an immobilizer system based on coded keys. A new transponder is required for addition of a second key, as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

It can be costly. This is the reason why you should always have a spare key available.

Transponder key

The transponder is a type of key with an electronic chip. This chip sends a signal when the key is placed into the ignition. The car will then check the signal to see if it matches the one that is in the key. If the signals are identical, the car will unlock itself and start. This is a fantastic way to safeguard your car from theft.

Transponder keys can 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 can easily be copied and cut, but a transponder has an electronic chip which protects it. The chip has an unique code that is programmed into the car's computers to identify it.

The car will recognize the Saab keyfob, and allow it to be turned on. However, it is only able to do so if the key fob is unmodified and has a chip that has been programmed to match. The car will not start in the event that the key is not programmed to match.

It is crucial to have a spare Saab key. This is particularly important when you live in a rural area with many car thieves. You can get a brand new key for your Saab by going to the dealership without paying their high costs. In most cases, you can have a brand new key made right on the spot for less than half the cost you would pay at the dealer.

Wired key

Saab cars are usually provided with two keys. If you have only one, it is best to acquire an extra key fob as quickly as you can as if you lose it, the car will require the replacement of a CIM unit, and the locking cylinders need to be replaced. This could be expensive particularly if you are buying a used car.

The next step is to wire the column and row wires to the microcontroller. This is the most challenging part of the project and will require a good amount of soldering. There isn't a standard way to do this, but it is important to think about the routes you'll use to solder the rows and columns. For this keyboard, there are five rows and 17 columns, which 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 the key switches. To do this, put a diode on each pin on the key switch and solder it. This will shield the pins from current and prevent them from being shortened. The diode allows current to only flow in only one direction. It comes with a visual indicator, a black band, that shows which way current will flow.

Sanabria says that some of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO and IM508 are able to assist customers who are shopping or DIY customers to program replacement keys and restore the immobilizer's data. The tools connect to the OBD port and guide the user through the procedure, making it much easier than replacing the computer in the vehicle.

Jump starting the battery


A lot of people keep the set in their trunks to jump start a car in case of emergency, but it might not be the best option for vehicles with newer technology. These vehicles are equipped with digital and computer systems that communicate with each other. A voltage spike when the battery is connected another could cause damage to the components, rendering your car undriveable.

Start the vehicle you are using and allow it to run for around two minutes before connecting the cables to the battery that is not working. Attach the red clip to the positive terminal on the good battery (it will have "POS" or "+" on it). Attach the other end to a clean, unpainted metal surface beneath the hood of your disabled vehicle. The engine block is an excellent alternative. Do not connect saab key programming to the negative terminal of the dead battery, as it could spark an ignition source that ignites gasoline in the engine bay.

Once the cables are connected, turn on the vehicle you are not using and let it run for approximately five minutes before disconnecting the cables in reverse order. Be aware that the battery in the Saab 9-3 gets recharged during your drive, which means it will take a while to get the battery back down again. It's a good idea to purchase a spare key fob as soon as you can, since replacing the one that works requires the installation of a brand new computer module and special programming to convince it that your missing keys aren't in the process of trying to steal the car.

Replacement case

Saab owners often only have one car key, and if that is lost, they will be charged. It's costly to add an additional key and it requires replacing the CIM or TWICE for older models. It's best to have a backup key in the event of theft or any other catastrophe and the most effective way is to purchase an additional key as soon as you are able to. Don't purchase a used key, even the case that it's "new." Keys that are claimed as new from a second-hand store will not work and are almost guaranteed to fail at the crucial moment.

The majority of locksmiths won't be able to help with a single working key, and the dealer will charge you high prices to replace the computer in your vehicle to make a replacement. However, we can reset and reprogram the computer's EEPROM to prepare it to accept an alternative key without replacing the entire system. That can save you a lot of money. It's also less expensive than waiting until you lose the only key.

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