Five Tools Everybody Involved In Saab Ignition Key Replacement Industry Should Be Making Use Of
Saab Key Programming
Saab cars made since 1994 use an immobilizer system that relies on key codes. A new transponder is required to allow the addition of an additional key, as well as special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.
It can be costly. This is why you should always have a spare key available.
Transponder key
The transponder key comes with an electronic chip that sends a signal to car when it is inserted into the ignition. The car then checks to see if the signal matches the one on the key. If both signals match, the car will unlock itself and start. This is a fantastic way to guard your car against theft.
Transponder keys are an increasingly popular feature in vehicles, but you should be aware that they're not as secure as traditional keys made of metal. The metal component of a traditional key is easily cut or copied, while a transponder has an electronic chip which protects it. This chip contains an unique code which is programmed into a car's computer order to identify it.
The car will recognize the Saab keyfob and allow it to turn on. The car will only recognize the key fob if the device has a chip that is unmodified and programmed to match. The car will not start in the event that the key has not been programmed to match.

It's crucial to ensure that you have an extra key for your Saab. This is particularly important if you live in a rural region where there are a lot of car burglars. You can get a brand new key for your Saab by going to the dealership and not paying their pricey costs. In the majority of instances, you can get a new key created on-the-spot for less than half the cost you'd pay at a dealer.
Wired key
Saab cars typically come with two keys when they're new. If G28 , you should purchase an additional key as soon as you can. This is because if you lose it and the car is damaged, it will require a new CIM and the locking cylinders replaced. This can be costly especially if buying a used car.
The next step is to connect the column and row wires to the microcontroller. This is the most laborious aspect of the project and it will require lots of soldering. There's no standard way to accomplish this, but it is important to think about how you will route and solder the columns and rows. There are 22 microcontroller wires and pins to connect to this keyboard. It has 5 rows and 17 column.
After the columns and rows are joined after which it is time to connect the key switches. To do this, you need to place a diode across each pin on the key switch and solder it. This will shield the pins from current and prevent them from being shortened. The diode will only allow the current to flow in a single direction, and it also has a an indicator of black color that shows the direction in which current will flow.
Sanabria states that some of the tools that are sold in auto parts stores, like the Autel MaxiIM IM608PRO or IM508 are able to assist shoppers 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 more simple 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 may not be the best idea for vehicles that are newer. These vehicles are equipped with many electronic devices and computers that communicate with one another. A voltage surge when the battery is connected to another could cause damage to the components and render your vehicle unusable.
Start the working vehicle and allow it to run for around two minutes before you connect 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 underneath the hood of your disabled car. The engine block is a great choice. Don't connect the black cable to the negative terminal of the dead battery because it could spark an ignition spark that ignites the gasoline in the engine bay.
Once the cables are connected, you should begin the car and let it run about five minutes. Then, disconnect the cables in reverse. The battery in the Saab 9-3 will charge while you drive. It may take a while it to drop back down. It's a good idea to invest in a spare key fob as soon as you can, because replacing the sole working one requires the installation of a brand new computer module and a special program to convince it that your missing keys aren't trying to steal the car.
Replacement case
Many Saab owners have only one key for their car and if they lose that the cost will be. It's costly to add the key and also requires replacing the CIM or TWICE for older models. In the event of theft, or any other calamity, it is best to have a spare key. But don't buy a used key even it's "new." Keys that are claimed-new from a second-hand store will not work and are likely to fail at the crucial moment.
The dealer will charge the highest dollars if you only have one working key. We can reset and reprogram the computer's EEEPROM to make it ready to accept a replacement key without replacing the entire system. This can save you a significant amount of money. It's less expensive instead of waiting until you lose the only key.